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WO1998038411A2 - Appareil destine a etre utilise lors d'operations de forage - Google Patents

Appareil destine a etre utilise lors d'operations de forage Download PDF

Info

Publication number
WO1998038411A2
WO1998038411A2 PCT/GB1998/000634 GB9800634W WO9838411A2 WO 1998038411 A2 WO1998038411 A2 WO 1998038411A2 GB 9800634 W GB9800634 W GB 9800634W WO 9838411 A2 WO9838411 A2 WO 9838411A2
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
hanger
bore
tree
annulus
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.)
Ceased
Application number
PCT/GB1998/000634
Other languages
English (en)
Other versions
WO1998038411A3 (fr
Inventor
David George Knowles
John Milne
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.)
Ocre Scotland Ltd
Original Assignee
Ocre Scotland 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 Ocre Scotland Ltd filed Critical Ocre Scotland Ltd
Priority to AU67364/98A priority Critical patent/AU6736498A/en
Priority to GB9920347A priority patent/GB2338738A/en
Publication of WO1998038411A2 publication Critical patent/WO1998038411A2/fr
Publication of WO1998038411A3 publication Critical patent/WO1998038411A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1007—Wear protectors; Centralising devices, e.g. stabilisers for the internal surface of a pipe, e.g. wear bushings for underwater well-heads
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0418—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for locking the tools in landing nipples or recesses
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/042—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/043—Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads

Definitions

  • This -invention relates to apparatus for use in drilling operations.
  • the present invention relates to apparatus for use in drilling operations utilising coil tubing or small diameter (“slimline”) drillpipe.
  • boreholes are drilled to gain access to hydrocarbon-bearing formations.
  • the boreholes which are typically several thousand metres long, are lined with steel casing and may be provided with various devices, profiles and valves. From time-to-time problems may be encountered in a section of the borehole or the area of the formation intersected by the borehole and it may become necessary to access a different area of the hydrocarbon- bearing formation.
  • a method of facilitating fluid circulation during a drilling operation in which drilling fluid is circulated downwardly through a drill support and upwardly through an annulus between bore casing and the drill support, the method comprising: providing a sleeve between a bore casing and a drill support to reduce the annulus flow area such that drilling fluid flow speed in the annulus may be maintained at a level sufficient to maintain entrainment of the drilling cuttings.
  • apparatus for facilitating fluid circulation during a drilling operation in which drilling fluid is circulated downwardly through a drill support and upwardly through an annulus defined between bore casing and the drill support, the apparatus comprising: a sleeve for location between a drill support and bore casing to reduce the annulus flow area such that drilling fluid flow speed may be maintained at a level sufficient to maintain the entrainment of cuttings.
  • the flow rate of drilling fluid from the surface to the drill bit is restricted by the internal diameter and mechanical limitations of the tubing, such that the flow speed of the fluid from the bit to the surface through the larger area annulus is relatively low.
  • the slow-moving fluid may be unable to maintain the entrainment of cuttings such that the annulus becomes blocked, particularly at locations where step increases in bore diameter occur.
  • the sleeve comprises outer seal means for preventing upward fluid flow through an outer annulus between the sleeve and bore casing.
  • the sleeve is adapted to extend through a tree of a wellhead assembly.
  • the apparatus further comprises a sleeve hanger.
  • the hanger is adapted for location above the tree of the wellhead assembly.
  • Shear seal blow out preventers (BOPs) may be provided between the hanger and the tree.
  • the sleeve hanger is provided on a hanger support assembly or spool which defines a fluid outlet in communication with the annulus, through which the drilling fluid and entrained cuttings may flow.
  • supplementary fluid may be introduced below the hanger, to flow downwardly in an outer annulus between the sleeve and bore casing and to combine with primary drilling fluid, which has passed through the drill support, to increase the fluid flowrate upwardly through an inner annulus between the sleeve and the drill support.
  • the supplementary fluid is introduced into the outer annulus via an existing fluid port in the tree, which, in the absence of the sleeve, normally serves as a drilling fluid outlet.
  • the sleeve hanger is configured to release the sleeve and permit the sleeve to drop into the bore, clear of selected elements of the tree.
  • the valves and other devices provided on the tree may be operated and utilised as necessary.
  • the sleeve defines a shoulder or no-go dimensioned to engage a production tubing hanger which is typically provided below the tree, such that the sleeve will only drop a limited distance and may be retrieved without difficulty.
  • the sleeve hanger includes one or more radially movable members for selectively supporting the sleeve.
  • the supporting members are keys which, with the hanger in a first configuration, are radially supported and will engage a sleeve shoulder to support the sleeve, and with the hanger in a second configuration are unsupported, allowing the keys to be deflected outwardly by the shoulder.
  • Support for the keys may be provided by an axially movable piston.
  • the sleeve hanger and sleeve include a member for restraining the sleeve against upward movement. ' -The member may be in the form of a snap ring on the sleeve for co-operating with radially movable keys provided on the hanger.
  • the sleeve is adapted to extend beyond a bore safety valve, and thus protects the valve seal bore. Accordingly, it is not necessary to run-in a separate sleeve to protect the seal bore from scoring and the like.
  • a tree saver comprising: a hanger for location above a wellhead tree; a sleeve adapted to be supported by the hanger and extend through a tree bore; and seals for location above and below the tree to isolate the tree bore .
  • apparatus for protecting a valve assembly of a wellhead assembly during a downhole drilling operation utilising a rotating drill support member which extends through the valve assembly, the apparatus comprising: a protective sleeve for location within a wellhead assembly defining a borewall, the upper end of the sleeve being adapted to sealingly engage the borewall above the valve assembly and the lower end of the sleeve being adapted to sealingly engage the borewall below the valve assembly.
  • the apparatus protects the valve assembly from contact with the rotating drilling support and also protects any seals provided on the valve assembly from contact with drilling fluid and cuttings carried thereby.
  • the apparatus of this and the other aspects of the invention includes a sleeve hanger including anti -rotation means for engaging the wellhead assembly, such that the hanger and sleeve will not rotate in the bore with the drill support member.
  • the sleeve is adapted to extend to or beyond a casing safety valve nipple, and thus also protect the safety valve nipple from contact with the rotating drill support and from abrasion by the upwardly flowing drilling fluid.
  • Figure 1 is a diagrammatic view of a wellhead assembly including apparatus for facilitating fluid circulation during a drilling operation in accordance with an embodiment of a first aspect of the present invention
  • Figure 2 is a sectional view of part of the assembly of Figure 1, shown somewhat enlarged;
  • Figure 3 is a further enlarged cross-sectional view of the apparatus of Figure 1, including internal details and showing a running tool;
  • Figure 4 is a sectional side view corresponding to a portion of Figure 3;
  • Figures 5, 6, 7 and 8 are sectional views of the apparatus of Figure 1 and illustrating the running sequence of the apparatus ;
  • Figure 9 is a sectional view illustrating the retrieval of the apparatus of Figure 1;
  • Figure 10 is a sectional view illustrating the emergency release of part of the apparatus of Figure 1;
  • Figures 11 and 12 are sectional views of a tree-saver in accordance with an embodiment of a further aspect of the present invention.
  • Figure 1 of the drawings is a diagrammatic representation of a wellhead assembly 20 including apparatus for facilitating fluid circulation during a drilling operation in accordance with an embodiment of a first aspect of the present invention.
  • the Figure illustrates a drilling operation in which a drill bit (not shown) is mounted on the lower end of a length of coiled tubing 22 which is shown being fed from a coiled tubing reel 24.
  • the coiled tubing 22 passes down through a set of blind ram blowout preventers (BOPs) 26, a support spool 28 forming part of the apparatus of the invention, shear seal BOPs 30, a Christmas tree 32 and a production tubing hanger 34.
  • BOPs blind ram blowout preventers
  • the BOPs 26, 30, support spool 28 and tubing hanger 34 will normally be located on or above the sea floor.
  • the bore 36 extends towards a hydrocarbon-bearing formations, and is lined for most of its length with steel casing 38.
  • drilling fluid or "mud” is pumped through the coiled tubing 22, the mud being drawn from mud pits 40 and pumped into the tubing 22 using an appropriate cement unit 42.
  • the drilling mud passes downwardly- _ through the tubing 22 and exits at nozzles provided in the drill bit.-
  • the drilling mud lubricates and cools the drill bit, assists in dislodging material from the cutting face and then carries drilling cuttings and other debris away from the cutting face.
  • the mud and entrained cuttings pass upwardly through an annulus 44 defined between the coiled tubing 22 and the casing 38 before passing through an outlet 46 in the support spool 28.
  • the mud is then treated to remove the cuttings and other impurities before being returned to the mud pits 40, ready for re-use.
  • this embodiment of the present invention aims to avoid this difficulty by reducing the cross-sectional area of the annulus 44. This is achieved by locating a sleeve 48 in the bore, the upper end of which is mounted in and sealed to the support spool 28 below the mud outlet 46. Accordingly, the provision of the sleeve 48 reduces the flow area of the annulus 44, increases the speed of the return mud flow, and thus ensures entrainment of the drilling cuttings in the mud.
  • FIG. 2 illustrates the support spool 28 and the upper end of the sleeve 48 in more detail.
  • the support spool 28 is adapted to be bolted directly to the shear seal BOP 30 and has a tubular body 50 defining various fluid ports, as will be described.
  • Towards the lower end of the spool bore 52 is a shoulder 54 which supports a sleeve hanger 56.
  • a number of keys 58 are provided in the hanger 56 and when radially supported the keys collectively define a shoulder for supporting the sleeve upper end 60.
  • the keys 58 are located in apertures circumferentially spaced around the hanger 56.
  • An annular groove 64 is formed behind the apertures and accommodates an annular actuator sleeve 66.
  • the volumes above and below the sleeve 66 are in communication with respective hydraulic fluid ports 68, 69, such that application of fluid pressure through one of the ports 68, 69 will move the actuator sleeve 66 axially to support the keys 58, as illustrated in the lower half of Figure 4, or to allow retraction of the keys 58, as illustrated in the upper half of Figure 4.
  • the sleeve upper end 60 is of larger external diameter than the remainder of the sleeve 48 and defines an external shoulder 70 for engaging the keys 58.
  • Below the shoulder 70 is an annular slot 72 which accommodates a snap-ring 74 having a chamfered lower outer corner 76 which allows the snap-ring 74 to deflect and pass over the extended keys 58.
  • the snap-ring 74 prevents the sleeve 48 being lifted from the hanger 56 when the keys ' 58 are extended radially inwardly.
  • the sleeve upper end 60 also carries a spring loaded anti-rotation dog 78 for engaging an axial groove 80 in the hanger 56.
  • Figure 3 illustrates the running tool 82 which is used to locate the sleeve 48 in the hanger 56.
  • the sleeve 48 engages the running tool 82 in a somewhat similar manner to the engagement between the sleeve 48 and the hanger 56, that is the running tool head 83 carries a number of radially movable keys 84 which are selectively supportable by an actuator sleeve 86.
  • the keys 84 engage a snap-ring 88 provided internally on the sleeve upper end 60 such that the running tool 82 may be stabbed into the sleeve upper end 60 with the keys 84 in the radially extended position, as illustrated in the lower half of Figure 3.
  • FIG. 5 through 8 of the drawings illustrate the running sequence of the sleeve 48.
  • the support spool 28 and shear seal BOPs 30 must be fitted to the existing subsea assembly, above the tree 23.
  • the tubular sections which form the sleeve 48 are made up and run into the bore.
  • the uppermost tubing section includes the enlarged cross- section end portion 60, and once this has been made up to the remainder of the sleeve 48, the running tool 82 is stabbed into the sleeve 48.
  • the running tool actuating sleeve 86 is in the lower position such that the keys 84 are in the radially extended position and thus engage beneath the sleeve snap-ring 88.
  • the running tool 82 and sleeve 48 are then run into the support spool 28.
  • the sleeve hanger 56 has already been positioned in the support spool 28, and the actuating sleeve 66 positioned such that the keys 58 extend into the hanger bore and will engage the sleeve shoulder 70 ( Figure 6) .
  • the sleeve 48 is then stabbed into the support spool 28, where it is locked in by the snap-ring 74.
  • the running tool 82 and sleeve 48 are then rotated to engage the anti- rotation dog 78.
  • the integrity of the seal between the sleeve 48 and the sleeve hanger 56 is then tested by applying fluid pressure through support spool port 90.
  • the running tool 82 is released from the sleeve 48 by applying pressure through the running tool support mandrel 87 to move the actuating sleeve 86 upwardly, and allow the keys to collapse inwardly.
  • the running tool 82 may then be lifted from the upper end of the sleeve 48.
  • the drilling apparatus and coiled tubing may then be run into the bore, through the sleeve 48, as illustrated in Figure 1.
  • drilling mud is pumped downwardly through the coiled tubing 22 and then passes upwardly from the drill bit through the annulus 44, including the reduced cross-sectional area annulus portion formed by the sleeve 48, to exit at the mud outlet 46 provided in the support spool 28 .
  • supplementary fluid may " be introduced into the outer annulus 92 formed between the casing 38 and the sleeve 48.
  • the supplementary mud is pumped using a second cement unit 94 to pump mud through an existing branch 96 in the tree 32, which, in the absence of the sleeve 48, would normally serve as the drilling mud outlet.
  • the supplementary mud flows down the annulus 92 to the end of the sleeve 48 and then joins the primary flow of mud upwardly through the annulus 44.
  • the resulting increase in mud flow in the annulus 44 assures entrainment of drilling cuttings upwardly to the outlet 46.
  • the sleeve 48 may be retrieved, as illustrated in Figure 9 of the drawings, by stabbing in the running tool 82 to engage the sleeve 48, and then moving the support spool actuating sleeve 66 upwardly by application of fluid pressure through the port 69, such that the keys 58 may move radially outwardly, allowing the snap ring 74 to move upwardly past the keys 58.
  • the sleeve 48 may then be lifted through the support spool 28.
  • the sleeve 48 may be released from the support spool 28 by applying pressure through the port 69 to move the actuating sleeve 66 to allow the keys 58 to move outwardly, as illustrated in Figure 10.
  • the sleeve 48 will only drop as far as the existing production tubing hanger 34, where the sleeve shoulder 70 engages a hanger no-go.
  • the sleeve 48 may be retrieved without difficulty.
  • FIG. 11 and 12 of the drawings illustrate a tree protection sleeve 110 in accordance with an embodiment of a further aspect of the present invention.
  • the sleeve 110 is substantially similar to the sleeve 48 described above, however the tree protection sleeve 110 is considerably shorter than the sleeve 48, only extending as far as the production tubing hanger 34, and the sleeve support spool 28 is bolted directly to the tree 32.
  • the tree protection sleeve 110 is provided with an upper seal 112 for sealing engagement with the sleeve hanger 56, but also includes a lower seal 114 for sealing engagement with the wall of the production tubing hanger 34.
  • the tree protection sleeve 110 will tend to be provided for use in combination with small diameter support strings, such as coiled tubing 22, and in particular with rotating support strings such as slimline drillpipe, which pass through the tree 32.
  • the primary function of the sleeve 110 is to protect the tree 32 from damage sustained by contact with the rotating string.
  • a longer sleeve (for example 700m) is provided which extends downwardly through the safety valve bore .
  • the sleeve is provided with a seal stack which cooperates with the seal stack of the safety valve, and somewhat like the sleeve ' protection sleeve 110 described above, protects the valve seal bore from physical damage from the drill support, and also protects the seal bore from erosion by the flow of drilling mud over the bore.
  • an anti -rotation lock prevents the sleeve from rotating with the drill support; this is in contrast to existing safety valve nipple protection sleeves which tend to rotate with the drill pipe, resulting in wear and damage to the nipple.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

L'invention concerne un procédé facilitant la circulation de fluide, procédé qui peut être utilisé au cours d'une opération de forage dans laquelle on fait circuler le fluide de forage vers le bas par l'intermédiaire d'un support de forage de petit diamètre, tel qu'un tube spiralé (22), et vers le haut par l'intermédiaire d'un espace annulaire (44) situé entre une paroi doublée du trou de sonde (38) et le support de forage (22). Le procédé comporte un manchon (48), situé entre la paroi du trou de sonde (38) et le support de forage (22), permettant de réduire la zone d'écoulement de l'espace annulaire, et ce, en vue de faciliter le maintien de la vitesse d'écoulement du fluide de forage dans l'espace annulaire à un niveau suffisant pour assurer l'entraînement des déblais de forage. L'invention se rapporte en outre à un procédé de protection de la tête de production située à l'entrée du puits et d'une soupape de sécurité contre l'érosion provoquée par le fluide de forage et ce, en suspendant un manchon de protection au-dessus de la tête de production (ou de la soupape de sécurité) et en le scellant au-dessus et au-dessous de la tête de production (ou de la soupape de sécurité).
PCT/GB1998/000634 1997-02-28 1998-03-02 Appareil destine a etre utilise lors d'operations de forage Ceased WO1998038411A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU67364/98A AU6736498A (en) 1997-02-28 1998-03-02 Apparatus for use in drilling operations
GB9920347A GB2338738A (en) 1997-02-28 1998-03-02 Apparatus for use in drilling operations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9704213.9 1997-02-28
GBGB9704213.9A GB9704213D0 (en) 1997-02-28 1997-02-28 Drilling apparatus

Publications (2)

Publication Number Publication Date
WO1998038411A2 true WO1998038411A2 (fr) 1998-09-03
WO1998038411A3 WO1998038411A3 (fr) 1999-02-18

Family

ID=10808502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/000634 Ceased WO1998038411A2 (fr) 1997-02-28 1998-03-02 Appareil destine a etre utilise lors d'operations de forage

Country Status (3)

Country Link
AU (1) AU6736498A (fr)
GB (2) GB9704213D0 (fr)
WO (1) WO1998038411A2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591913B2 (en) * 2001-12-12 2003-07-15 Oceaneering International, Inc. System and method for lessening impact on Christmas trees during downhole operations involving Christmas trees
WO2005072354A1 (fr) * 2004-01-27 2005-08-11 Baker Hughes Incorporated Protecteur de tiges bloque en rotation pour colonnes de forage et de production
US20130067762A1 (en) * 2006-10-04 2013-03-21 Varco I/P, Inc. Reclamation of components of wellbore cuttings material
US9073104B2 (en) 2008-08-14 2015-07-07 National Oilwell Varco, L.P. Drill cuttings treatment systems
CN104948129A (zh) * 2015-07-02 2015-09-30 淮南矿业(集团)有限责任公司 封孔管下入装置
EP2844826A4 (fr) * 2012-04-29 2016-04-06 Baker Hughes Inc Accouplement raccord rapide pour des opérations de cimentage et similaires
CN108776075A (zh) * 2018-07-10 2018-11-09 长江大学 模拟井下钻杆冲蚀磨损的试验装置及试验方法
US10556196B2 (en) 2013-03-08 2020-02-11 National Oilwell Varco, L.P. Vector maximizing screen
CN111075362A (zh) * 2018-10-22 2020-04-28 中国石油化工股份有限公司 快速钻塞管柱及方法

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US3664423A (en) * 1970-03-23 1972-05-23 Gray Tool Co Tie-back system for underwater completion
US3648786A (en) * 1971-04-12 1972-03-14 Baker Oil Tools Inc Subsurface fluid pressure reduction drilling apparatus
US4060140A (en) * 1975-10-22 1977-11-29 Halliburton Company Method and apparatus for preventing debris build-up in underwater oil wells
US4231436A (en) * 1978-02-21 1980-11-04 Standard Oil Company (Indiana) Marine riser insert sleeves
CA1094945A (fr) * 1978-05-02 1981-02-03 Ronald S. Bullen Securite pour tete de production de puits
US4496012A (en) * 1983-05-02 1985-01-29 Mobil Oil Corporation Method for improving cuttings transport in deviated wells
US4507842A (en) * 1983-08-19 1985-04-02 John Werner Method of sealing and protecting a plastic lined pipe joint
US4754819A (en) * 1987-03-11 1988-07-05 Mobil Oil Corporation Method for improving cuttings transport during the rotary drilling of a wellbore
US5018575A (en) * 1988-10-25 1991-05-28 Mandrels, Inc. Apparatus for reducing abrasion and corrosion in mandrels
CA1281280C (fr) * 1989-09-26 1991-03-12 Roderick D. Mcleod Outil obturateur annulaire et concentrique pour tete de puits eruptif, et son mode d'emploi
EP0512331B1 (fr) * 1991-05-06 1996-09-18 WAVE TEC Ges.m.b.H. Dispositif pour nettoyer la zone proche du trou de sondage
GB2267920B (en) * 1992-06-17 1995-12-06 Petroleum Eng Services Improvements in or relating to well-head structures
CA2085780C (fr) * 1992-12-18 1996-07-09 Bruce Cherewyk Appareillage et methode d'essai par manchon d'etancheite de tete de puits et methode d'epreuve sous pression pour manchon d'etancheite en place sur une tete de puits

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591913B2 (en) * 2001-12-12 2003-07-15 Oceaneering International, Inc. System and method for lessening impact on Christmas trees during downhole operations involving Christmas trees
WO2003053125A3 (fr) * 2001-12-12 2004-06-17 Oceaneering Int Inc Systeme et procede permettant de reduire l'impact sur des arbres de noel durant des operations au fond d'un puits faisant intervenir des arbres de noel
WO2005072354A1 (fr) * 2004-01-27 2005-08-11 Baker Hughes Incorporated Protecteur de tiges bloque en rotation pour colonnes de forage et de production
GB2424914A (en) * 2004-01-27 2006-10-11 Baker Hughes Inc Rotationally locked wear sleeve for through-tubing drilling and completion
GB2424914B (en) * 2004-01-27 2007-12-05 Baker Hughes Inc Rotationally locked wear sleeve for through-tubing drilling and completion
US7624799B2 (en) 2004-01-27 2009-12-01 Baker Hughes Incorporated Rotationally locked wear sleeve for through-tubing drilling and completion
US20130067762A1 (en) * 2006-10-04 2013-03-21 Varco I/P, Inc. Reclamation of components of wellbore cuttings material
US8533974B2 (en) * 2006-10-04 2013-09-17 Varco I/P, Inc. Reclamation of components of wellbore cuttings material
US9073104B2 (en) 2008-08-14 2015-07-07 National Oilwell Varco, L.P. Drill cuttings treatment systems
EP2844826A4 (fr) * 2012-04-29 2016-04-06 Baker Hughes Inc Accouplement raccord rapide pour des opérations de cimentage et similaires
US10556196B2 (en) 2013-03-08 2020-02-11 National Oilwell Varco, L.P. Vector maximizing screen
CN104948129A (zh) * 2015-07-02 2015-09-30 淮南矿业(集团)有限责任公司 封孔管下入装置
CN108776075A (zh) * 2018-07-10 2018-11-09 长江大学 模拟井下钻杆冲蚀磨损的试验装置及试验方法
CN108776075B (zh) * 2018-07-10 2021-01-08 长江大学 模拟井下钻杆冲蚀磨损的试验装置及试验方法
CN111075362A (zh) * 2018-10-22 2020-04-28 中国石油化工股份有限公司 快速钻塞管柱及方法
CN111075362B (zh) * 2018-10-22 2023-08-04 中国石油化工股份有限公司 快速钻塞管柱及方法

Also Published As

Publication number Publication date
GB9920347D0 (en) 1999-11-03
WO1998038411A3 (fr) 1999-02-18
AU6736498A (en) 1998-09-18
GB9704213D0 (en) 1997-04-16
GB2338738A (en) 1999-12-29

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