[go: up one dir, main page]

EP3265640A1 - Matériel tubulaire pour trou de forage et procédé associé - Google Patents

Matériel tubulaire pour trou de forage et procédé associé

Info

Publication number
EP3265640A1
EP3265640A1 EP16758399.6A EP16758399A EP3265640A1 EP 3265640 A1 EP3265640 A1 EP 3265640A1 EP 16758399 A EP16758399 A EP 16758399A EP 3265640 A1 EP3265640 A1 EP 3265640A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
fluid
tubular
diffuser tube
orifice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16758399.6A
Other languages
German (de)
English (en)
Other versions
EP3265640A4 (fr
EP3265640B1 (fr
Inventor
Glenn Edward Woiceshyn
Fred Harmat
Liam Patrick HAGEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Canada Ltd
Original Assignee
Absolute Completion Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Absolute Completion Technologies Ltd filed Critical Absolute Completion Technologies Ltd
Publication of EP3265640A1 publication Critical patent/EP3265640A1/fr
Publication of EP3265640A4 publication Critical patent/EP3265640A4/fr
Application granted granted Critical
Publication of EP3265640B1 publication Critical patent/EP3265640B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0078—Nozzles used in boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells

Definitions

  • the invention relates to wellbore structures and, in particular, nozzles and tubulars for wellbore fluid control.
  • Tubulars are employed to both inject fluids into and conduct fluids from a wellbore.
  • nozzles are employed to control the flow and pressure characteristics of the fluid moving through the wellbore.
  • a wellbore tubular comprising: a base pipe including a wall; a port through the wall providing access between an inner diameter of the base pipe and an outer surface of the base pipe; a nozzle in the port, the nozzle including an orifice; and a diffuser tube on the outer surface to receive fluid exiting the orifice, the diffuser tube including an inlet port opening to an inner diameter within a tubular wall of the diffuser tube, a fluid diffusing wall at a bend within the diffuser tube and a plurality of outlet ports from the diffusing tube.
  • a method for handling fluid in a wellbore comprising: forcing fluid flows through a nozzle orifice which extends from an inner diameter of a tubular to an outer surface of the tubular; and directing the fluid flowing from the nozzle orifice along the outer surface and into a diffuser tube to diffuse energy of the fluid flowing from the nozzle orifice before the fluid exits the tubular.
  • Figure 1 is a perspective view of a wellbore tubular
  • Figure 2 is a section along line I-I of Figure 1 ;
  • Figure 3 is a section through line II -II of Figure 2;
  • Figure 4 is an enlarged section through a nozzle installed in the wall of a tubular;
  • Figure 5 is an exploded perspective view of the components of a nozzle to be installed in the wall of a tubular;
  • Figure 6 is a perspective view of a nozzle seat;
  • Figure 7 is an enlarged sectional view of a nozzle
  • Figure 8 is an enlarged section through a nozzle installed in the wall of a tubular;
  • Figure 9 is an axial sectional view through a tubular with a diffuser therein;
  • Figure 10 is a section along III-III of Figure 9;
  • Figure 1 1 is a section along IV-IV of Figure 10;
  • Figure 12 is sectional view of another tubular, the sectional view being similar to that of Figure 10, but passing through the nozzle;
  • Figure 13 is a perspective view of the diffuser and nozzle arrangement of the tubular of Figure 12 with the shield removed;
  • Figure 14 is a section along V-V of Figure 13.
  • a wellbore tubular 10 is shown.
  • the wellbore tubular is for conveying fluid into or out of a well and for permitting fluid to pass between its inner diameter and its outer surface.
  • the tubular has a durable construction and may even accommodate the significant rigors presented by handling steam flows.
  • the wellbore tubular may be formed using various constructions.
  • the ends 10a of the wellbore tubular may be formed for connection to adjacent wellbore tubulars.
  • the tubular's ends are shown as blanks, they may be formed in various ways for connection end to end with other tubulars to form a string of interconnected tubulars, such as, for example, by formation at one or both ends as threaded pins, threaded boxes or other types of connections.
  • Wellbore tubular 10 includes a base pipe 12 with one or more ports 14 through the base pipe wall. Fluids may pass through ports 14 between the base pipe's inner diameter ID defined by inner surface 12a and its outer surface 12b. Depending on the mode of operation intended for the wellbore tubular, fluid flow can be inwardly through the ports toward inner diameter ID or outwardly through the ports from inner diameter ID to the outer surface 12b.
  • the inner diameter generally extends from end to end of the tubular such that the tubular can act to convey fluids from end to end therethrough and be used to form a length of a longer fluid conduit through a plurality of connected tubulars.
  • the tubular may include a shield 16 mounted to base pipe 12.
  • the shield may be positioned to overlap the ports.
  • Shield 16 may be spaced from outer surface 12b such that an annular space 18 is provided between the shield and outer surface 12b.
  • shield 16 is spaced at at least some edges 16a from outer surface 12b such that there are openings 18a through which space 18 can be accessed at those edges.
  • the shield may be positioned to encircle base pipe 12 at the ports 14 and, therefore, may be shaped as a sleeve, as shown with space 18 formed as an annulus and with annular access openings 18a at both ends of the sleeve.
  • the openings may take other forms in other embodiments, depending on the form of the base tubular, sleeve, and mode of operation.
  • the 1 18a openings may be formed in whole or in part by grooves 1 19 in the outer surface 1 12b of the base pipe ( Figure 8).
  • Shield 16 may serve a number of purposes including, for example, protecting the ports from abrasion and diverting flow for fluid velocity control.
  • shield 16 diverts flow between the exterior of the tubular and ports 14, such that it must pass along outer surface 12b of base pipe. Flow, therefore, cannot pass directly radially between the exterior of the tubular and inner diameter ID.
  • ports 14 open into space 18, flow between exterior of the tubular and the inner diameter changes direction at least once: at the intersection of port 14 and space 18. While flow through the ports 14 is radial relative to the long axis xb of the tubular, flow between the ports and the exterior of the tool is through space 18 and that flow is substantially orthogonal relative to the radial flow through ports 14.
  • Each port 14 has a nozzle assembly 20 installed therein.
  • the nozzle assembly permits flow control through the port in which it is installed.
  • nozzle assembly 20 includes at least a nozzle 22 and may include an installation fitting 24.
  • Nozzle 22 includes an orifice 26 extending through the nozzle body through which fluid passes through the nozzle and therefore through the port.
  • a nozzle 22 is installed in each port such that flow through the port is controlled by the shape and the configuration of orifice 26.
  • Nozzle 22 is formed of a material that can withstand the erosive rigors experienced down hole such as via abrasive flows, high velocity flows, corrosive flows with acid and/or steam passing through orifice 26.
  • Nozzle 22 may, for example, be formed of a material different, for example, harder than the material forming base pipe 12.
  • the base pipe is, for example, usually formed of steel such as carbon steel and nozzle 22 may be formed of a material harder than the carbon steel of base pipe 12.
  • nozzle 22 may be formed of tungsten carbide, stainless, hardened steel, filled materials, etc.
  • Orifice 26 may be shaped to allow non-linear flow through nozzle 22.
  • orifice 26 defines a path through the nozzle, through which fluid flows, and the path from its inlet end to its outlet end is non-linear, including at least one bend or elbow that causes at least one change in direction of the fluid flowing through the orifice.
  • This bend may affect fluid flows in a number of ways to redirect the flow to a more favorable direction, to cause impingement of the fluid against a nozzle surface or another flow to diffuse energy from the flow, to mitigate erosive damage to certain surfaces and/or to create an extra back pressure to slow or otherwise control flows of certain fluids autonomously through the nozzle.
  • the geometry of the nozzle orifice 26 can be selected to choke selectively gas, water, steam or oil.
  • orifice 26 may include a diverting bend at y that diverts flow through the nozzle from a first direction to a second direction which is offset, out of line from the first direction,
  • first direction is shown by arrow Fa
  • second direction is shown by arrow Fb.
  • the second direction is substantially orthogonal to the first direction.
  • Nozzle 22 is positioned in a port and will have one end open to the inner diameter ID of the tubular and the other end open to the outer surface 12b.
  • the nozzle is installed so that a base end 22a is installed adjacent and open to inner surface 12a and an opposite end 22b is installed adjacent and open to outer surface 12b.
  • Orifice 26 may be formed, therefore, to avoid straight through flow between base end 22a and opposite end 22b.
  • Orifice 26, for example, may include a portion defining a main aperture 26a and a portion defining a lateral aperture 26b.
  • Main aperture 26a extends from an opening 26a' at a base end 22a of nozzle 22 to an end wall 26a" at an opposite end 22b of the nozzle.
  • Lateral aperture 26b extends from the main aperture and connects main aperture 26a to another opening 26b' adjacent opposite end 22b.
  • Lateral aperture 26b extends at an angle from the long axis of main aperture 26a.
  • the angular intersection of the axis of lateral aperture relative to the main aperture may be substantially orthogonal (+/- 45°) and in one embodiment, for example, the apertures 26a, 26b intersect at y at substantially 90°.
  • the nozzle may be substantially cylindrical with ends 22a, 22b and substantially cylindrical side walls extending between the ends.
  • the main aperture portion opens at an end and the pair of lateral aperture portions opens on the cylindrical side walls.
  • End wall 26a which can be flat (planar) or domed (concave), prevents straight through flow through the nozzle and acts to divert flow from the first direction in the main aperture to the lateral direction through lateral aperture 26b. Impingement of fluid flows against wall 26a" dissipates energy from the flow and concentrates erosive energy against wall 26a" rather than surfaces beyond the nozzle. Orifice 26 is formed through the material of the nozzle and, thus, walls 26a" and the other walls defining orifice 26 are of erosion-resistant material. Thus, the diverting bend and in particular end wall 26a", can reliably accommodate the passage therethrough of erosive flows including that of steam.
  • Orifice 26 may be further configured to control the flow characteristics of fluid passing therethrough.
  • apertures 26a, 26b may be sized to limit the volume of fluid capable of passing therethrough,
  • apertures 26b may be smaller diameter openings, sized to allow less flow, than aperture 26a.
  • the total cross sectional area of apertures 26b may be less than the total cross sectional area of aperture 26a, such that a back pressure is created when flow is in the direction of arrows Fa, Fb. Stated another way, the pressure drop is mainly across 26b.
  • the primary flow control through the nozzle is at lateral aperture 26b, more so than 26a.
  • apertures 26a, 26b may be shaped to impart desired flow rate and/or pressure on the fluid passing therethrough.
  • lateral aperture 26b as shown, has internal shape with a jetting constriction to impart a jet effect, which generally includes a fluid acceleration and pressure change (i.e. drop), in the fluid passing therethrough.
  • the shape of apertures 26a may change depending on whether the flow is intended to be with arrows Fb or against them or a bidirectional jetting shape may be employed with a symmetrical constriction similar to an hour glass.
  • orifice 26 may take the form of a T-shaped conduit with at least two lateral apertures 26b extending from the main aperture.
  • two lateral apertures 26b are shown, there may be only one or more than two such apertures.
  • Nozzle 22 conveys fluid between openings 26a' and 26b' across the wall of the base pipe. One opening is exposed in the inner diameter of the base pipe and the other opening is exposed on outer surface 12b. If shield 16 is employed, fluid when exiting from nozzle 22, enters annulus 18. The position of orifice 26b' of lateral aperture 26b causes some fluid movement parallel to outer surface 12b, rather than straight radially out from port 14.
  • Nozzle 22 may be installed in any of various ways in its port 14.
  • nozzle assembly 20 may include installation fitting 24 to hold nozzle 22 in its port 14.
  • a fitting 24 may be employed to ensure a good fit of the nozzle in its port and may, for example, reduce the risk of nozzle 22 falling out of the port.
  • Installation fitting 24 may be formed to fit between the nozzle and the port.
  • the installation fitting may include a portion for being engaged in the port and a portion for securing nozzle.
  • the portion for being engaged in the port may vary depending on the form and the shape of the port and the desired mode of installation in port 14.
  • installation fitting 24 includes a threaded portion 28 as that portion engageable in the port.
  • the port may also include threads 30 into which fitting 24 may be threaded.
  • the portion for securing the nozzle may also vary, for example, depending on the form and shape of nozzle 22 and the desired mode of installation of nozzle 22.
  • nozzle 22 can be held rigidly by the fitting and in another embodiment, nozzle 22 may be installed to have some degree of movement relative to the fitting, while being held against becoming entirely free of the fitting.
  • fitting 24 in the illustrated example includes a passage 32 into which nozzle 22 fits. Passage 32 passes fully through the fitting such that it is open at both ends of the fitting and, in other words, the fitting is formed as a ring.
  • opening 26a' is exposed at one end of the passage and opening 26b' is exposed at the other end of the passage.
  • nozzle 22 is secured rigidly into passage 32.
  • nozzle 22 may be press fit and possibly mechanically shrunk fit, into passage 32.
  • fitting 24 may be heated to cause thermal expansion thereof that enlarges the diameter across passage 32, nozzle 22 may be fit therein and fitting 24 cooled to contract about the nozzle and, thereby, firmly engage it.
  • fitting 24 may include features to modify the hoop stresses about the ring to best accommodate heating expansion for press fitting.
  • passage 32 and nozzle 22 may have a tapering diameter from end to end to facilitate press fitting these parts together.
  • nozzle 22 may have a tapering outer diameter from one end to the other and passage 32 may have a tapering inner diameter from one end to the other end.
  • passage 32 may include notches 34 in the otherwise substantially circular sectional shape (orthogonal to the center axis x of passage 32).
  • the material of nozzle 22 may have thermal expansion properties different than the material of base pipe 12. As such, if nozzle 22 was installed directly into base pipe 12, it may tend to become dislodged or damaged in use such as when in a high temperature (i.e. steam) environment.
  • installation fitting 24 may be formed of a material having a coefficient of thermal expansion selected to work well with both the nozzle and the base pipe.
  • installation fitting 24 is formed of a material having a coefficient of thermal expansion between those of the materials of the base pipe and the nozzle.
  • the coefficient of thermal expansion of fitting 24 is greater than that of base pipe 12.
  • Shield 16 may overlap the nozzle assembly to hold nozzle 22 in the port 14.
  • nozzle 22 is fit in the port such that any movement to fall out of port is radially out towards outer surface 12b.
  • a controlled installation that tends to allow nozzle 22 to only move outwardly towards the outer surface may be achieved, for example, by tapering of the nozzle and the port/passage in which it is installed to have their wider ends radially outwardly positioned, for example closer to the outer surface of the base pipe.
  • Shield 16 includes a plug 36 in a hole 38 that substantially radially aligns with port 14. Plug 36 is removable to allow opening of hole 38 and access to port 14 and, thereby, installation of nozzle assembly 20 to port 14 through hole 38.
  • plug 36 may be reinstalled in hole 38 to overlie the nozzle.
  • Plug 36 and hole 38 may be threaded to facilitate removal and reinstallation of the plug.
  • Plug 36 can ensure that nozzle 22 remains in position in port 14 even if nozzle 22 comes loose.
  • plug 36 can be formed to penetrate into hole 38 sufficiently to bear down on end 22b of the nozzle. If there are tolerances that may prevent reliable fitting of the plug against end 22b of the nozzle, a flexible spacer may be employed. For example, as shown, there may be a spring 40 between plug 36 and nozzle 22.
  • Nozzle assembly 20, in this embodiment including nozzle 22 and fitting 24 in port 14, allows fluid to move between inner diameter ID and outer surface 12b through orifice 26.
  • the lateral orifice 26b directs fluid flows that are adjacent opening 26b' to pass substantially parallel to outer surface 12b through annulus 18.
  • aperture 26b may be positioned such that flows therethrough pass somewhat parallel to the long axis xb of base pipe.
  • the nozzle 22 can be installed such that the of aperture 26b is within 60° and perhaps within 45° of long axis xb.
  • axis xa of aperture 26b is substantially aligned with long axis xb.
  • plug 36 can be removed from hole 38, the nozzle assembly including at least nozzle 22 but possibly also fitting 24 can be inserted through hole 38 and installed in port 14 with openings 26a' and 26b' exposed in inner diameter ID and annulus 18, respectively, and with axis xa of aperture 26b directed in a selected direction, for example toward the open edges 16a of shield 16, Then plug 36 can be installed in hole 38 over nozzle 22. If there is a spacer, such as spring 40, it is positioned between nozzle 22 and plug 36. In an embodiment where the nozzle assembly includes fitting 24 and nozzle 22, these parts can be installed separately or may be connected ahead of installation.
  • tubular 110 includes a screening apparatus 150.
  • Tubular 110 is primarily useful for handling inflows, since screening apparatus 150 removes oversize particles from the flows to opening 118a.
  • Grooves 119 in outer surface 112b extend under apparatus 1 0, through openings 118a under an edge of the shield and into space 118 between outer surface 112b and shield 116. Space 118 opens to nozzle.
  • tubular 110 illustrates a nozzle 122 without an additional installation fitting and, instead, nozzle 122 is secured directly into the material of base pipe.
  • fluid may pass through nozzle orifice 26 between inner diameter ID and outer surface 12b.
  • Nozzle 22 diverts flow such that it passes in a non-linear fashion between inner diameter ID and outer surface 12b.
  • Orifice 26 causes fluid flows to change direction as they pass through the nozzle including both: (i) substantially radially relative to the long axis xb of the base pipe and (ii) substantially parallel to the outer surface, which is possibly somewhat parallel to the long axis of the base pipe. This may direct flows through space 18 between outer surface 12b and shield 16 spaced from the outer surface. The fluid may flow through space 18, along outer surface 12b through an opening 18a, 1 18a to the annulus about the tubular.
  • nozzle 22 may control fluid flows by accommodating and avoiding erosion through ports and controlling velocity and pressure characteristics of the flow.
  • a method for accepting inflow of steam or produced fluids in a paired, heavy oil (such as oil sand), gravity drainage well may employ a tubular such as is depicted in Figures 1 to 3 or Figure 7.
  • paired well steam production it is desirable that introduced steam create a steam chamber in the formation that heats the heavy oil and mobilizes it as produced fluids.
  • the produced fluids are intended to flow into a producing well.
  • steam from an adjacent well may break through and seek to enter the producing well.
  • Using a tubular, as described steam may be restricted from passing into the tubular due to the form of the nozzle and the configuration of the nozzle in the tubular.
  • the limited entry size of the apertures first limits the volume of produced fluids that can pass into the tubular.
  • the impingement of flows from the diametrically opposed apertures 26b tends to resist flows through the orifice 26 and creates a back pressure that limits flows through the nozzle.
  • the diverted flow path from aperture 26b to aperture 26a dissipates fluid force so that the tubular tends not to problematically erode.
  • a steam chamber may form outwardly of the tubular, even if a break through occurs from the steam injection well to the producing well.
  • the method may include holding the nozzle in place against the forces tending to move the nozzle into an inactive position.
  • the method may include holding the nozzle down into the port, for example, by a shield thereover.
  • the method may include holding the nozzle against dislodgement by differences in thermal expansion, for example, by use of a fitting.
  • a fitting may act between the nozzle and the base pipe to hold the nozzle in place.
  • the fitting may prevent the nozzle from passing into the inner diameter due to a taper in the parts and the nozzle may have a thermal expansion that holds the nozzle in place.
  • nozzle 22 While the embodiment is described wherein nozzle 22 is rigidly installed in fitting 24, the nozzle in some embodiments can be slidably mounted in the fitting. For example, nozzle can slide into and out of the fitting depending on the pressures against openings 26a' and 26b'. As such, nozzle 22 can operate as a form of valve.
  • a nozzle, as described hereinbefore, may have an orifice shaped to restrict flow in one direction, but such an orifice may not restrict flow as much in the opposite direction.
  • a nozzle 222 may be installed in a tubular 212 intended to handle produced fluid flow, which is flow inwardly from the base pipe's outer surface 212b through the orifice of the nozzle.
  • produced fluid flow may be through a lateral aperture 126b of the orifice and then into a main aperture 126a of the orifice, before entering the inner diameter ID of the tubular.
  • each orifice lateral aperture 126b has a smaller diameter inner end (the end closer to main aperture 126a) and a larger diameter outer end (the end closer to space 1 18) and a flaring diameter from the inner end to the outer end.
  • This orifice shape creates back pressure on the fluid passing therethrough in the direction of arrows F.
  • ID through nozzle 122 to outer surface 1 12b may not be slowed by the orifice and may, in fact, be accelerated such that the fluid passing from nozzle 122, out through lateral aperture 126b along outer surface 1 12b may have a high velocity and may be damaging to structures in the fluid path, especially if the fluid is steam or acid.
  • the fluids passing from nozzle 122 may damage structures including parts of the tubular such as shield 116, base pipe outer surface 1 12b, screening materials 150, or the formation. Fluids, such as water, gas, steam or acid, passing from the nozzle orifice 126b may cause erosion-corrosion.
  • a tubular 210 that provides both controlled, low stress inflow and controlled, low stress outflow through a nozzle 222 may include an outflow diffuser 260 positioned to accept flow from the nozzle.
  • the outflow diffuser 260 accepts flow and dissipates some of the energy therefrom before releasing the flow to exit and flow away from the tubular.
  • the diffuser includes a wall positioned out of alignment, for example substantially orthogonally, to the axis a (see Figure 7) of the orifice's lateral apertures 226b.
  • the diffuser may be installed on outer surface 212b of the tubular wall to receive impingement from an outward flow from nozzle 222, which will be through the orifice's lateral apertures 226b.
  • the diffuser is positioned adjacent the nozzle and generally in a space such as an exterior fluid chamber 218 such as one defined between a shield 216 and outer surface 212b.
  • the exterior fluid chamber has an opening 218a to the exterior of the tool through which fluid enters or exits the chamber. When fluid is passing outwardly through nozzle 222, it follows an exit path from nozzle to opening 218a where the fluid passes out from under the shield 216 to the exterior of the shield. Opening is part of the exit path for the fluid.
  • the opening 218a may open directly to the exterior of the tool.
  • a filtering material 250 may be disposed across opening 218a to filter fluid passing through opening 218a.
  • the diffuser is a tube positioned and configured to accept fluids exiting the nozzle at lateral apertures 226b and redirect and slow the fluids before releasing them to continue along the exit path and flow from the tubular.
  • the diffuser tube has a tubular construction with a tubular wall defining there within an inner diameter that provides a conduit for fluids to flow between an inlet port 262 to the tube and a plurality of outlet ports 264 from the tube.
  • the inlet port may have a diameter larger than the diameter of each individual outlet port 264.
  • the diffuser tube may be formed with an elbow 266 along its conduit length such that flow passing therethrough is redirected and does not pass straight through.
  • the elbow creates the wall positioned out of alignment, for example substantially orthogonally, to the axis xa (see Figure 7) of the orifice's lateral aperture 226b.
  • the tube in one embodiment is L or T-shaped with an inlet portion 270, which is a length of the tube having the inlet port 262 at one end thereof and elbow 266 at the other end and one or more, such as for example two, arm portions 272 extending from the inlet portion at the elbow.
  • Outlet ports 264 are positioned in the arm portions 272, but are spaced from elbow 266.
  • the outlet ports may be holes through the tubular wall forming the arm portions and/or may be holes at the end of the arm portions.
  • the inner diameter of the inlet portion opens at the elbow into the inner diameters of the arm portions.
  • the diffuser tube is T-shaped with inlet portion 270 connected to two arm portions at a T-shaped elbow.
  • the diffuser tube may be substantially symmetrical about the inlet portion.
  • the diffuser is positioned on the outer surface of the wall of the tubular 212 adjacent the orifice of nozzle 222 to receive the fluid passing from lateral aperture 226b.
  • inlet port 262 is positioned substantially aligned with lateral aperture 226b.
  • inlet port 262 may be positioned such that its center point is axially aligned with axis xa of the nozzle's lateral aperture 226b.
  • Inlet port 262 may be flared and may taper across its inner diameter with depth into the inlet port.
  • the arm portions 272 extend from inlet portion 270. Since the diffuser is positioned on the wall of tubular 212, arm portions 272 may be curved to substantially follow the circumferential curvature of the tubular's wall. In one embodiment, the long axis of inlet portion 270 extends substantially in alignment with long axis xb of the tubular body 212 and arms 272 are attached to the inlet portion and are curved to extend around the circumferential curvature orthogonal to the long axis xb of the tubular body.
  • outlet ports 264 are positioned in the arm portions 272.
  • Ports 264 may be positioned in the end of the arm portions 272 and/or may be positioned spaced apart along the length of each arm portion.
  • the ports 264 are positioned to direct the fluid passing therethrough into a particular area of the tubular.
  • ports 264 are positioned in arm portions 272 such that fluid exiting therefrom cannot flow directly along a straight line to the exit opening 218a on the tubular.
  • ports 264 can be positioned in arm portions 272 such that fluid passing from the ports must change direction to reach the exit opening 218a.
  • the ports for example, may be oriented to face towards a blocking structure such as towards the outer surface, the shield or another diffuser.
  • the ports may be positioned to expel fluid into counter or cross flowing fluid path or along a path not directly parallel to the exit path leading to exit opening 218a.
  • the ports may be positioned such that their outlet ports 264 face each other.
  • ports 264 are positioned in arm portions 272 on a side that faces away from the exit path of the fluid.
  • the ports open towards another diffuser and, in particular, toward ports 264 on that other diffuser.
  • at least some ports are angled up toward shield 216 and/or angled down toward surface 212b, which are the walls that define the upper and lower limits, respectively, of the exterior fluid chamber 218.
  • ports 264 in the illustrated embodiment are positioned to expel fluid away from opening 218a into a counter flowing fluid path generated by fluid expelled from the opposite diffuser and upwardly or downwardly at an angle to impinge against the upper or lower limits of the chamber in which they are installed.
  • diffuser conduit 260 is spaced from the nozzle such that there is an open space 280 between the nozzle and the inlet portion 270 of the diffuser.
  • Produced fluid may flow through opening 218a, into open space 280 and then enter nozzle directly to thereby flow inwardly into the inner diameter, while bypassing at least the arm portions and elbow, and possibly the entirety, of the diffuser,
  • the bypass opening may take other forms such as large holes through the inlet portion, if the diffuser if attached directly adjacent the nozzle.
  • the diffuser may be mounted in chamber 218 with gaps 282 between the upper and/or lower surfaces of the arm portions 272 and the shield 216 and/or surface 212b such that produced fluid can pass above and below the diffuser to enter the nozzle's orifice without flowing through the diffuser.
  • diffuser 260 is installed to be held firmly in its position adjacent the nozzle.
  • a mounting block 286 that secures the diffuser in position between shield 216 and base pipe 212.
  • mounting block 286 is sandwiched and secured between the shield and the base pipe and in the tubular of Figure 12, mounting block 286 is installed in a recess 288 in the shield.
  • the mode of installation such as the use of mounting block 286 maintains gaps 282 and spacing at open space 280, to secure the diffuser against being pushed away from the nozzle by the force of the fluid flow.
  • Diffuser 260 especially at inlet port 262, outlet ports 264 and elbow 266, must withstand a lot of erosive fluid force.
  • diffuser 260 may be constructed of a durable material similar to those used for the nozzle. While the use of such material may be costly, the amount of this material required for nozzle 222 and diffuser 260, may be small compared to the overall material requirements of the tubular. These parts, the nozzle and the diffuser can be installed in a tubular formed of standard construction materials. The spacing between the diffuser and the nozzle may determine how much of the nozzle's flow is treated via the diffuser and the force at which the fluid enters the inlet portion. This spacing may be varied as desired in the construction of the tubular.
  • Figures 10 and 13 differ in a few respects including the shape and mode of installation of the mounting portion 286. These two embodiments also show two different installations for nozzle 222, wherein Figure 10 shows the nozzle formed as an integral component of the base pipe and Figure 13 shows the nozzle as an insert installed through a capped port, such as is described in Figure 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne un matériel tubulaire pour trou de forage comprenant : un tube de base comprenant une paroi ; une ouverture dans la paroi assurant un accès entre un diamètre intérieur du tube de base et une surface extérieure du tube de base ; une buse placée dans cette ouverture, cette buse comprenant un orifice comprenant un coude ; et un diffuseur positionné sur la surface extérieure en alignement avec l'orifice.
EP16758399.6A 2015-03-03 2016-03-01 Matériel tubulaire pour trou de forage et procédé associé Active EP3265640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562127498P 2015-03-03 2015-03-03
PCT/CA2016/050215 WO2016138583A1 (fr) 2015-03-03 2016-03-01 Matériel tubulaire pour trou de forage et procédé associé

Publications (3)

Publication Number Publication Date
EP3265640A1 true EP3265640A1 (fr) 2018-01-10
EP3265640A4 EP3265640A4 (fr) 2018-11-14
EP3265640B1 EP3265640B1 (fr) 2020-04-22

Family

ID=56849137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16758399.6A Active EP3265640B1 (fr) 2015-03-03 2016-03-01 Matériel tubulaire pour trou de forage et procédé associé

Country Status (7)

Country Link
US (1) US20180045022A1 (fr)
EP (1) EP3265640B1 (fr)
BR (1) BR112017018814A2 (fr)
CA (1) CA2978113A1 (fr)
RU (1) RU2705673C2 (fr)
SG (1) SG11201707059XA (fr)
WO (1) WO2016138583A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200291742A1 (en) * 2017-11-07 2020-09-17 Schlumberger Canada Limited Nozzle for wellbore tubular
US11512575B2 (en) * 2020-01-14 2022-11-29 Schlumberger Technology Corporation Inflow control system
GB2592427A (en) * 2020-02-28 2021-09-01 Schoeller Bleckmann Oilfield Equipment Ag Downhole tool with improved nozzles and method of operating a downhole tool

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9715001D0 (en) * 1997-07-17 1997-09-24 Specialised Petroleum Serv Ltd A downhole tool
US6253853B1 (en) * 1998-10-05 2001-07-03 Stellarton Energy Corporation Fluid injection tubing assembly and method
US6138777A (en) * 1999-02-11 2000-10-31 Phillips Petroleum Company Hydraulic underreamer and sections for use therein
NO314701B3 (no) * 2001-03-20 2007-10-08 Reslink As Stromningsstyreanordning for struping av innstrommende fluider i en bronn
US7370705B2 (en) * 2002-05-06 2008-05-13 Baker Hughes Incorporated Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones
EP1616075A1 (fr) * 2003-03-28 2006-01-18 Shell Internationale Research Maatschappij B.V. Crepine et vanne a ecoulement de surface regulee
CA2567890C (fr) * 2004-06-02 2009-12-15 Baker Hughes Incorporated Ouverture resistante a l'erosion pour une valve de fond ou pour un outil de regulation du debit a ouvertures
NO332898B1 (no) * 2008-05-07 2013-01-28 Bech Wellbore Flow Control As Anordning ved stromningsregulator for regulering av en fluidstrom mellom et petroleumsreservoar og et rorlegeme
US7814973B2 (en) * 2008-08-29 2010-10-19 Halliburton Energy Services, Inc. Sand control screen assembly and method for use of same
US8561704B2 (en) * 2010-06-28 2013-10-22 Halliburton Energy Services, Inc. Flow energy dissipation for downhole injection flow control devices
US9027642B2 (en) * 2011-05-25 2015-05-12 Weatherford Technology Holdings, Llc Dual-purpose steam injection and production tool
US9227204B2 (en) * 2011-06-01 2016-01-05 Halliburton Energy Services, Inc. Hydrajetting nozzle and method
US9097104B2 (en) * 2011-11-09 2015-08-04 Weatherford Technology Holdings, Llc Erosion resistant flow nozzle for downhole tool
US8925633B2 (en) * 2012-01-13 2015-01-06 Baker Hughes Incorporated Inflow control device with adjustable orifice and production string having the same
EP2867457A4 (fr) * 2012-06-29 2016-12-28 Halliburton Energy Services Inc Ensemble isolement pour dispositif de régulation de débit entrant
US8739887B2 (en) * 2012-07-03 2014-06-03 Halliburton Energy Services, Inc. Check valve for well stimulation
CA2877608C (fr) * 2012-07-04 2016-03-29 Absolute Completion Technologies Ltd. Crepine
US8936094B2 (en) * 2012-12-20 2015-01-20 Halliburton Energy Services, Inc. Rotational motion-inducing flow control devices and methods of use
US10132136B2 (en) * 2013-07-19 2018-11-20 Halliburton Energy Services, Inc. Downhole fluid flow control system and method having autonomous closure
GB201401653D0 (en) * 2014-01-31 2014-03-19 Swellfix Bv Flow control device

Also Published As

Publication number Publication date
WO2016138583A1 (fr) 2016-09-09
RU2017130712A3 (fr) 2019-09-09
US20180045022A1 (en) 2018-02-15
RU2705673C2 (ru) 2019-11-11
EP3265640A4 (fr) 2018-11-14
SG11201707059XA (en) 2017-09-28
EP3265640B1 (fr) 2020-04-22
BR112017018814A2 (pt) 2018-04-24
CA2978113A1 (fr) 2016-09-09
RU2017130712A (ru) 2019-04-03

Similar Documents

Publication Publication Date Title
US20160326843A1 (en) Nozzle, wellbore tubular and method
US9638000B2 (en) Method and apparatus for controlling the flow of fluids into wellbore tubulars
CA2816013C (fr) Deviation de fluides de fracturation et plaque-filtre
US9068416B2 (en) Wellbore knock-out chamber and related methods of use
DK3099892T3 (en) FLOW CONTROL DEVICE
BRPI0817249B1 (pt) Montagem restringidora, montagem de gaiola para uso em uma montagem restringidora emétodo para controlar o fluxo de um fluido
US20200291742A1 (en) Nozzle for wellbore tubular
EP3265640B1 (fr) Matériel tubulaire pour trou de forage et procédé associé
WO2010045074A2 (fr) Raccord de réduction à inserts résistant à l'érosion
US10041338B2 (en) Adjustable autonomous inflow control devices
WO2014058626A1 (fr) Réducteur de flux pour outil de service
CA2897994A1 (fr) Etrangleur pour un conduit d'ecoulement
US8376038B2 (en) Slurry outlet in a gravel packing assembly
BR112017023274B1 (pt) Válvula de injeção
EP2597251B1 (fr) Système de tube d'entrée
US20200256163A1 (en) Flow control nozzle and apparatus comprising a flow control nozzle
CA2914430C (fr) Appareil pour attraper des billes de fracturation
CA2914394C (fr) Appareil servant a attraper des balles
WO2019068164A1 (fr) Appareil de régulation de débit pour la stimulation et la production de puits de forage
WO2015094172A1 (fr) Sertissage pour régler le débit de fluide pour dispositifs de régulation d'afflux autonomes

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170928

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20181017

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 41/00 20060101ALI20181011BHEP

Ipc: E21B 43/12 20060101ALI20181011BHEP

Ipc: E21B 17/00 20060101AFI20181011BHEP

Ipc: E21B 34/06 20060101ALI20181011BHEP

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SCHLUMBERGER CANADA LIMITED

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20191112

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602016034586

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1260293

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200515

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200824

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200722

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200723

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200822

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1260293

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200722

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602016034586

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

VS25 Lapsed in a validation state [announced via postgrant information from nat. office to epo]

Ref country code: MD

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

26N No opposition filed

Effective date: 20210125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602016034586

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210301

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211001

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210301

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210301

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20160301

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231208

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

VS25 Lapsed in a validation state [announced via postgrant information from nat. office to epo]

Ref country code: MA

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200422