CN108397181A - A kind of pressure break and the Joint Implementation tubing string and method of the aquatic production of control - Google Patents
A kind of pressure break and the Joint Implementation tubing string and method of the aquatic production of control Download PDFInfo
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- CN108397181A CN108397181A CN201810305956.0A CN201810305956A CN108397181A CN 108397181 A CN108397181 A CN 108397181A CN 201810305956 A CN201810305956 A CN 201810305956A CN 108397181 A CN108397181 A CN 108397181A
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- central tube
- tube
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- self
- tubing string
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003129 oil well Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 210000000078 claw Anatomy 0.000 claims description 26
- 239000012530 fluid Substances 0.000 claims description 26
- 241000538562 Banjos Species 0.000 claims description 16
- 238000005553 drilling Methods 0.000 claims description 6
- 238000002627 tracheal intubation Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Pipe Accessories (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention provides the Joint Implementation tubing string and method of a kind of pressure break and the aquatic production of control, the Joint Implementation tubing string includes the ball seat of tubular column main body, the hanging packer set on one end of tubular column main body and the other end set on tubular column main body, and several open hole packers, several self-closing fracturing sliding bushs and several switchable formula inflow control devices in tubular column main body and between hanging packer and ball seat；Wherein, it is equipped with self-closing fracturing sliding bush and switchable formula inflow control device between each two adjacent open hole packer, also is provided in ball seat and between its immediate open hole packer self-closing fracturing sliding bush and switchable formula inflow control device.By using the Joint Implementation tubing string, the aquatic production of control can be also realized when the depth of oil well is deeper, to improve the oil production of the deeper oil well of depth.
Description
Technical field
The invention belongs to oil and gas exploitation apparatus fields, and in particular to a kind of pressure break and the Joint Implementation of the aquatic production of control
Tubing string and method.
Background technology
Staged fracturing completion technique is a kind of common oilfield stimulation method, can significantly improve the permeability of reservoir,
To achieve the purpose that improve oil well output.It is tired in order to solve later stage production control water in the prior art after staged fracturing operation
Difficult problem, mainly by the way that switchable fracturing sliding bush, and the continuous oil by the way that switching tools will be carried are arranged on tubing string
Pipe is inserted into selectively turns on or closes switchable fracturing sliding bush in tubing string, and aquatic production is controlled to realize.But when the depth of oil well
When degree is deeper, such as when the depth of oil well is more than 7500 meters, due to being limited by the length and the strength of materials of coiled tubing, on
It states water control method to be no longer applicable in so that depth is more than that 7500 meters of oil well cannot achieve the aquatic production of control, leads to the production of such oil well
Oil mass is relatively low.
Invention content
Based on the above issues, the object of the present invention is to provide the Joint Implementation tubing strings and side of a kind of pressure break and the aquatic production of control
Method can also realize the aquatic production of control when the depth of oil well is deeper by using the Joint Implementation tubing string, to improve depth compared with
The oil production of deep oil well.
The present invention provides the Joint Implementation tubing string of a kind of pressure break and the aquatic production of control comprising tubular column main body is set to the pipe
The ball seat of the hanging packer of one end of column ontology and the other end set on the tubular column main body, and it is set to the tubular column main body
Upper and several open hole packers between the hanging packer and ball seat, several self-closing fracturing sliding bushs and several
A switchable formula inflow control device；Wherein, it is equipped with the self-closing between each two adjacent open hole packer
Fracturing sliding bush and the switchable formula inflow control device, in the ball seat and between its immediate described open hole packer
It also is provided with the self-closing fracturing sliding bush and the switchable formula inflow control device.
Preferably, the switchable formula inflow control device includes：Control water assembly comprising be connected with the tubular column main body
Logical the first central tube, the outer tube being sheathed on first central tube and the first sliding being arranged in first central tube
Pipe, one end of the outer tube are connect with first central tube, and the first ring is formed between the outer tube and first central tube
Shape runner, first sliding tube have first position and the second position, first central tube in first central tube
Through-hole is offered on the outer wall of the upper corresponding second place；Water inlet component, one end and the other end of the outer tube are tightly connected,
For the first annular runner will to be imported from the fluid of oil reservoir；Wherein, when first sliding tube is in first position,
First sliding tube opens wide the through-hole and the first annular runner is made to be connected to first central tube, to allow to come from
The fluid of the oil reservoir can enter after the water inlet component, first annular runner and through-hole in described first successively
In heart pipe；When first sliding tube is in the second position, first sliding tube blocks the through-hole so that from described
The fluid of oil reservoir cannot be introduced into first central tube.
Preferably, it is equipped with and is axially spaced apart and successively far from the water inlet group on the inner wall of first central tube
The first locating slot, the second locating slot and the limiting slot of part are respectively equipped with the first elastic card claw at the both ends of first sliding tube
With the second elastic card claw, wherein when first sliding tube is in first position, first elastic card claw is sticked in described
In first locating slot, second elastic card claw is sticked in second locating slot, when first sliding tube is in second
When position, first elastic card claw is sticked in second locating slot, and second elastic card claw is sticked in limiting slot.
Preferably, the water inlet component includes screen casing, banjo and the second center being connected with the tubular column main body
Pipe, the screen casing and banjo are arranged along the axial direction of second central tube and are connected to second central tube successively
On, the screen casing is connected with the first end of banjo, the second end of the banjo be inserted into the outer tube and with it is described
The internal perisporium of outer tube is tightly connected, second central tube expose the second end of the banjo and with first central tube
Connection；The screen casing and banjo form the second annular channel, second annular between second central tube jointly
Runner is connected to the first annular runner, and the fluid in oil reservoir can be by sequentially entering second ring after the screen casing
Shape runner and first annular runner.
Preferably, it is differential switch to be set to the ball seat and the self-closing fracturing sliding bush between open hole packer
Sliding, remaining described self-closing fracturing sliding bush is ball-throwing type switching sliding sleeve.
Preferably, the self-closing fracturing sliding bush includes the third central tube being connected with the tubular column main body, set on described
In third central tube and can along the second sliding tube of the axially reciprocating of the third central tube, for driving described the
The drive component of two sliding tubes and the resilient return member in the third central tube, the side wall of the third central tube
It is equipped with the pressure break hole of the inner cavity and stratum that can be connected to the third central tube；Wherein, when the pressure in the third central tube
When power is more than default Opening pressure, the driving component can drive second sliding tube from the position for closing the pressure break hole
It is moved to the position for opening the pressure break hole；When the pressure in the third central tube decreases below default Opening pressure,
Second sliding tube can be pushed to closing under the action of the resilient return member from the position for opening the pressure break hole
The position in the pressure break hole.
Pressure break according to the present invention and the Joint Implementation tubing string of the aquatic production of control, first according to permeability along the distribution of horizontal well
Oil well is separated into multiple fuel-displaced sections by rule by ball seat and open hole packer, and each fuel-displaced section is respectively formed relatively independent stream
Dynamic space.Self-closing fracturing sliding bush is respectively set in each fuel-displaced section to carry out staged fracturing, staged fracturing can improve storage
The permeability of layer achievees the effect that improve oil well output.In addition, switchable formula is arranged in above-mentioned each fuel-displaced section flows into control
Device, to realize the segmentation control water to horizontal well, to the pressure traverse of equilibrium level well so that heterogeneous reservoir uniformly goes out
Oil delays bottom water coning to reach, and improves oil/gas well oil production and recovery ratio.The Joint Implementation tubing string of the present invention is by can
Switching regulator inflow control device is applied to by each fuel-displaced section that staged fracturing is separated out, avoiding using coiled tubing
Constantly the mode of fracturing sliding bush is turned on and off to realize the aquatic production of control, is controlled aquatic production and is no longer limited by oil well depth, even if
It is the oil well that depth is more than 7500m, can also controls aquatic production, the oil production of oil well has been significantly increased.Further, pass through
The setting of self-closing fracturing sliding bush and switchable formula inflow control device can either effectively prevent inflow control device to make pressure break
The influence of industry, and influence of the fracturing sliding bush to the aquatic production of control can be effectively prevent.In addition, pressure break and the aquatic production of control of the invention
The structure of Joint Implementation tubing string is simple, safe and reliable, convenient for widely promoting and applying.
The present invention also provides a kind of pressure break and the Joint Implementation methods of the aquatic production of control comprising following steps：
Step 1, by drilling rod by coupled above-mentioned Joint Implementation tubing string tripping in oil well, and executing for slurry operation
The setting hanging packer and each open hole packer afterwards, recycle back intubation column to replace the drilling rod；
Step 2 injects fracturing fluid into described time intubation column and puts into the ball that builds the pressure, to execute staged fracturing operation, according to
By, to the sequence far from the ball seat, opening the self-closing fracturing sliding bush successively, and ensure previous close to the ball seat
After the self-closing fracturing sliding bush is closed, self-closing fracturing sliding bush described in the latter is opened again；
Step 3 forces the ball that builds the pressure to follow fracturing fluid is counter to be together discharged to ground, then passes through each switchable formula stream
Enter control device and realizes the aquatic production of control.
Pressure break according to the present invention and the Joint Implementation method of the aquatic production of control, by using the Joint Implementation pipe of the present invention
Column carries out pressure break and the aquatic production of control, the aquatic production of control can also be realized when the depth of oil well is deeper, to improve depth
The oil production of deeper oil well.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of the Joint Implementation tubing string of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the switchable formula inflow control device of the Joint Implementation tubing string of the embodiment of the present invention；
Fig. 3 is the enlarged diagram in the portions A in Fig. 2.
Reference sign：1, tubular column main body；2, hanging packer；3, ball seat；4, open hole packer；5, self-closing pressure break
Sliding sleeve；6, switchable formula inflow control device；61, water assembly is controlled；62, water inlet component；611, the first central tube；612, outer tube；
613, the first sliding tube；614, through-hole；615, the first locating slot；616, the second locating slot；617, limiting slot；618, the first elasticity
Claw；619, the second elastic card claw；621, the second central tube；622, screen casing；623, banjo.
Specific implementation mode
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be only used as example, and the protection model of the present invention cannot be limited with this
It encloses.
In order to keep the purpose of the present invention, technical solution and effect clearer, the present invention is implemented below in conjunction with attached drawing
Mode is described in further detail.
Fig. 1 is the structural schematic diagram of the Joint Implementation tubing string of the embodiment of the present invention, as shown in Figure 1, the Joint Implementation tubing string
Including tubular column main body 1, hanging packer 2, ball seat 3, several open hole packers 4, several self-closing fracturing sliding bushs 5 and several
A switchable formula inflow control device 6.Hanging packer 2 is set to one end of tubular column main body 1, and ball seat 3 is set to tubular column main body 1
The other end.Several open hole packers 4, several self-closing fracturing sliding bushs 5 and several switchable formula inflow control devices 6 are equal
In tubular column main body 1 and between hanging packer 2 and ball seat 3.Wherein, in each two adjacent open hole packer 4
Between be equipped with self-closing fracturing sliding bush 5 and switchable formula inflow control device 6, sealed in ball seat 3 and with its immediate bore hole
Self-closing fracturing sliding bush 5 and switchable formula inflow control device 6 also are provided between device 4.
Above-mentioned self-closing fracturing sliding bush 5 refers to the pressure break it is not necessary that pressure break hole can be automatically closed by tools such as coiled tubings
Sliding sleeve mainly realizes being automatically closed for fracturing sliding bush, self-closing pressure by the pressure change in tubular column main body 1 in the prior art
Splitting the concrete structure of sliding sleeve 5 will hereinafter be illustrated.Inflow control device (Inflow Control Devices, referred to as
For ICD) parasitic pressure drop can be generated, according to fluid by when frictional resistance generate additional pressure.The stream of fluid
Amount is directly proportional to additional pressure drop, and the flow by the fluid of inflow control device is bigger, then the parasitic pressure drop generated is bigger, because
This can be with flow automatic regulation so that each fuel-displaced section of flow of horizontal well tends to balance.In the present invention, it will flow into and control
Device is improved to switchable formula.When fracturing work, close switchable formula inflow control device 6, can to avoid fracturing fluid from
Switchable formula inflow control device 6 enters stratum；When carrying out controlling aquatic production, self-closing fracturing sliding bush 5 is closed, it can be to avoid ground
Water in layer enters from fracturing sliding bush in tubular column main body 1, it is avoided to influence control water effect.
Pressure break according to the present invention and the Joint Implementation tubing string of the aquatic production of control, first according to permeability along the distribution of horizontal well
Oil well is separated into multiple fuel-displaced sections by rule by ball seat 3 and open hole packer 4, each fuel-displaced section be respectively formed it is relatively independent
The flowing space.Self-closing fracturing sliding bush 5 is respectively set in each fuel-displaced section to carry out staged fracturing, staged fracturing can improve
The permeability of reservoir achievees the effect that improve oil well output.In addition, switchable formula is arranged in above-mentioned each fuel-displaced section flows into control
Device 6 processed, to realize the segmentation control water to horizontal well, to the pressure traverse of equilibrium level well so that heterogeneous reservoir is equal
It is even fuel-displaced, delay bottom water coning to reach, improves oil/gas well oil production and recovery ratio.The Joint Implementation tubing string of the present invention passes through
Switchable formula inflow control device 6 is applied to by each fuel-displaced section that staged fracturing is separated out, avoiding using company
Continuous oil pipe is constantly turned on and off the mode of fracturing sliding bush to realize the aquatic production of control, controls aquatic production and is no longer limited by oil well depth
System can also control aquatic production, the oil production of oil well has been significantly increased even depth is more than the oil well of 7500m.Further
Ground can either effectively prevent flowing into control dress by the setting of self-closing fracturing sliding bush 5 and switchable formula inflow control device 6
The influence to fracturing work is set, and influence of the fracturing sliding bush to the aquatic production of control can be effectively prevent.
Preferably, in above-mentioned multiple fuel-displaced sections be separated out by ball seat 3 and open hole packer 4, in each fuel-displaced section
One self-closing fracturing sliding bush 5 and multiple switchable formula inflow control devices 6 can be used cooperatively, can further be increased in this way
The control water effect of strong later stage oil recovery production process.
Fig. 2 is the structural schematic diagram of the switchable formula inflow control device of the Joint Implementation tubing string of the embodiment of the present invention, Fig. 3
For the enlarged diagram in the portions A in Fig. 2.As shown in Figures 2 and 3, which includes control water assembly 61
With water inlet component 62.Control water assembly 61 includes the first central tube 611 being connected with tubular column main body 1, is sheathed on the first central tube 611
On outer tube 612 and the first sliding tube 613 for being arranged in the first central tube 611, one end of outer tube 612 and the first central tube
611 connections, form first annular runner, the first sliding tube 613 is in the first central tube between outer tube 612 and the first central tube 611
There is first position and the second position in 611, corresponded on the first central tube 611 and offer through-hole on the outer wall of the second place
614.One end of water inlet component 62 is tightly connected with outer tube 612, for that will import first annular runner from the fluid of oil reservoir.
In the present embodiment, it is threadedly coupled between housing and the first central tube 611.Wherein, when the first sliding tube 613 is in first position
When, the first sliding tube 613 opens wide through-hole 614 and first annular runner is made to be connected to the first central tube 611, to allow to come from oil reservoir
Fluid can successively pass through water inlet component 62, first annular runner and through-hole 614 after enter the first central tube 611 in；
When the first sliding tube 613 is in the second position, the first sliding tube 613 blocks through-hole 614 so that the fluid from oil reservoir can not
Into in the first central tube 611.During staged fracturing technology is combined with inflow control device, invention human hair
Existing, since tubular column main body 1 is also connected by inflow control device with stratum, fracturing fluid can enter from inflow control device
Stratum causes fracturing effect to be affected.Therefore, inventor passes through test of many times and test, is controlled to inflow in the prior art
Device processed is transformed, and inflow control device in the prior art, which has finally been changed to the switchable formula with above structure, flows into
Control device 6 can effectively prevent fracturing fluid and enter stratum from inflow control device, be further ensured that fracturing effect,
Be conducive to the raising of oil production, meanwhile, structure design as switchable formula inflow control device 6 makes what it was opened and closed
Operation is all very simple and easy, improves the operating efficiency of construction personnel.
Preferably, it is equipped with and is axially spaced apart and successively far from water inlet component 62 on the inner wall of the first central tube 611
The first locating slot 615, the second locating slot 616 and limiting slot 617, be respectively equipped with the first bullet at the both ends of the first sliding tube 613
Property claw 618 and the second elastic card claw 619, wherein when the first sliding tube 613 is in first position, the first elastic card claw 618
It is sticked in the first locating slot 615, the second elastic card claw 619 is sticked in the second locating slot 616, at the first sliding tube 613
When the second position, the first elastic card claw 618 is sticked in the second locating slot 616, and the second elastic card claw 619 is sticked in limiting slot
In 617.First elastic card claw 618 and the second elastic card claw 619 enable to the first sliding tube 613 that can either steadily be fastened on
First position or the second position, but the process for enabling to the first sliding tube 613 to shift one's position will not be excessively difficult.
Water inlet component 62 includes screen casing 622, banjo 623 and the second central tube 621 being connected with tubular column main body 1,
Screen casing 622 and banjo 623 are arranged along the axial direction of the second central tube 621 and are connected on the second central tube 621 successively, sieve
Pipe 622 is connected with the first end of banjo 623, the second end of banjo 623 be inserted into outer tube 612 and with outer tube 612
Internal perisporium is tightly connected, and the second central tube 621 exposes the second end of banjo 623 and connect with the first central tube 611；Screen casing
622 and banjo 623 the second annular channel, the second annular channel and the first ring are formed between the second central tube 621 jointly
Shape runner is connected to, and has sieve pore on screen casing 622 so that and the fluid in oil reservoir can enter the second annular channel by screen casing 622,
Entered and first annular runner by the second annular channel again.
In the present embodiment, when carrying out fracturing work, the first elastic card claw 618 of switching sliding sleeve and the second elastic card claw
619 are located at the second locating slot 616 and limiting slot 617, and switchable formula inflow control device 6 is closed at this time.
When needing to proceed by the aquatic production of control, into tubular column main body 1, tool is opened in tripping in, and is suppressed so that the first sliding tube
613 move down, and first elastic card claw 618 and the second elastic card claw 619 at 613 both ends of the first sliding tube, which are located at first, to be determined
In position slot 615 and the second locating slot 616, switchable formula inflow control device 6 is in the open state at this time.
Above-mentioned self-closing fracturing sliding bush 5 include the third central tube being connected with tubular column main body 1, be set to third central tube in and
Can the casing along the axially reciprocating of third central tube, the drive component for drive sleeve and be set to third center
Resilient return member in pipe, the side wall of third central tube are equipped with the pressure break of the inner cavity and stratum that can be connected to third central tube
Hole.Wherein, when the pressure in third central tube is more than default Opening pressure, drive component can drive sleeve from closing pressure break
The position in hole is moved to the position for opening pressure break hole；When the pressure in third central tube decreases below default Opening pressure,
Casing can be pushed to the position for closing pressure break hole under the action of resilient return member from the position for opening pressure break hole.Certainly,
Self-closing fracturing sliding bush 5 may be set to be other structure types, and those skilled in the art can come according to the actual needs
It is selected.
In the present embodiment, the self-closing fracturing sliding bush 5 set on ball seat 3 and between open hole packer 4 is differential opens
Sliding is closed, remaining self-closing fracturing sliding bush 5 is ball-throwing type switching sliding sleeve.Differential switching sliding sleeve is a kind of constant-pressure sliding sleeve,
It is opened by the effect of the pressure difference generated inside tubing string, and ball-throwing type switching sliding sleeve is needed by putting into pressure break ball, dependence is whole
The active force that fluid column and wellhead supercharging inside a tubing string generate is opened.For the horizontal well of bore hole staged fracturing, ball seat 3 and with
Between open hole packer 4 using differential switching sliding sleeve rather than uniformly use ball-throwing type switching sliding sleeve, can avoid pressure break ball without
Method is pumped into the case where end of tubular column main body 1.
The present invention also provides a kind of pressure break and the Joint Implementation methods of the aquatic production of control comprising following steps：
Step 1, by drilling rod by coupled above-mentioned Joint Implementation tubing string tripping in oil well, and executing for slurry operation
Setting hanging packer 2 and each open hole packer 4 afterwards recycle back intubation column to replace drilling rod；
Step 2 injects fracturing fluid into time intubation column and puts into the ball that builds the pressure, to execute staged fracturing operation, according to by leaning on
Nearly ball seat 3 arrives the sequence far from ball seat 3, opens self-closing fracturing sliding bush 5 successively, and ensure in previous self-closing fracturing sliding bush
After 5 are closed, the latter self-closing fracturing sliding bush 5 is opened again；
Step 3 forces the ball that builds the pressure to follow fracturing fluid is counter to be together discharged to ground, then flows into control dress by each switchable formula
Set the 6 aquatic productions of realization control.
In addition, in above-mentioned steps 1, during for slurry operation, need to utilize completion fluid by mud in well wellbore
It replaces to the position of the above 200m of hanging packer or so.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In this application, term " first ", " second " etc. are used for description purposes only, and are not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two
More than a, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, the terms such as term " connected ", " connection ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；Can be mechanical connection,
It can be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the company inside two elements
Logical or two elements interaction relationship.For the ordinary skill in the art, can understand as the case may be
The concrete meaning of above-mentioned term in the present invention.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (7)
1. a kind of pressure break and the Joint Implementation tubing string of the aquatic production of control, which is characterized in that including tubular column main body, be set to the tubing string sheet
The ball seat of the hanging packer of one end of body and the other end set on the tubular column main body, and in the tubular column main body and
Several open hole packers, several self-closing fracturing sliding bushs between the hanging packer and ball seat and several can
Switching regulator inflow control device；Wherein, the self-closing pressure break is equipped between each two adjacent open hole packer
Sliding sleeve and the switchable formula inflow control device are also set in the ball seat and between its immediate described open hole packer
There are the self-closing fracturing sliding bush and the switchable formula inflow control device.
2. Joint Implementation tubing string according to claim 1, which is characterized in that the switchable formula inflow control device packet
It includes：
Control water assembly comprising the first central tube for being connected with the tubular column main body is sheathed on first central tube
Outer tube and the first sliding tube being arranged in first central tube, one end of the outer tube are connect with first central tube,
First annular runner is formed between the outer tube and first central tube, first sliding tube is in first central tube
With first position and the second position, is corresponded on first central tube and offer through-hole on the outer wall of the second place；
The other end of water inlet component, one end and the outer tube is tightly connected, for that will import described the from the fluid of oil reservoir
One annular channel；
Wherein, when first sliding tube is in first position, first sliding tube opens wide the through-hole and makes described
One annular channel is connected to first central tube, to allow the fluid from the oil reservoir that can pass through the water inlet successively
Enter in first central tube after component, first annular runner and through-hole；
When first sliding tube is in the second position, first sliding tube blocks the through-hole so that comes from the oil
The fluid of layer cannot be introduced into first central tube.
3. Joint Implementation tubing string according to claim 2, which is characterized in that be equipped on the inner wall of first central tube
It is axially spaced apart and the first locating slot far from the water inlet component, the second locating slot and limiting slot successively, described the
The both ends of one sliding tube are respectively equipped with the first elastic card claw and the second elastic card claw, wherein when first sliding tube is in the
When one position, first elastic card claw is sticked in first locating slot, and second elastic card claw is sticked in described
In two locating slots, when first sliding tube is in the second position, first elastic card claw is sticked in second positioning
In slot, second elastic card claw is sticked in limiting slot.
4. Joint Implementation tubing string according to claim 2, which is characterized in that the water inlet component includes screen casing, to patching
Head and the second central tube for being connected with the tubular column main body, the screen casing and banjo along second central tube axis
To being arranged and being connected on second central tube successively, the screen casing is connected with the first end of banjo, and described pair patches
The second end of head is inserted into the outer tube and is tightly connected with the internal perisporium of the outer tube, and it is described right that second central tube exposes
The second end of plug is simultaneously connect with first central tube；The screen casing and banjo jointly with second central tube it
Between form the second annular channel, second annular channel is connected to the first annular runner, and the fluid in oil reservoir can lead to
It crosses the screen casing and sequentially enters second annular channel and first annular runner later.
5. the Joint Implementation tubing string according to any one of claim 1-4, which is characterized in that be set to the ball seat and with it is naked
The self-closing fracturing sliding bush between eye packer slides for differential switch, remaining described self-closing fracturing sliding bush is
Ball-throwing type switching sliding sleeve.
6. the Joint Implementation tubing string according to any one of claim 1-4, which is characterized in that the self-closing fracturing sliding bush
Include the third central tube being connected with the tubular column main body, be set to the third central tube in and can be along the third center
Second sliding tube of the axially reciprocating of pipe, the drive component for driving second sliding tube and be set to the third
Resilient return member in central tube, the side wall of the third central tube are equipped with the inner cavity that can be connected to the third central tube
With the pressure break hole on stratum；
Wherein, when the pressure in the third central tube is more than default Opening pressure, the driving component can drive described
Second sliding tube is moved to the position for opening the pressure break hole from the position for closing the pressure break hole；When in the third central tube
Pressure when decreasing below default Opening pressure, second sliding tube can under the action of the resilient return member from
The position for opening the pressure break hole is pushed to the position for closing the pressure break hole.
7. a kind of pressure break and the Joint Implementation method of the aquatic production of control, which is characterized in that it includes the following steps：
Step 1, by drilling rod by the Joint Implementation tubing string tripping in oil well described in any one of coupled claim 1-6
In, and the setting hanging packer and each open hole packer after executing for slurry operation, recycle back intubation column to replace
Change the drilling rod；
Step 2 injects fracturing fluid into described time intubation column and puts into the ball that builds the pressure, to execute staged fracturing operation, according to by leaning on
The nearly ball seat opens the self-closing fracturing sliding bush, and ensure previous described successively to the sequence far from the ball seat
After self-closing fracturing sliding bush is closed, self-closing fracturing sliding bush described in the latter is opened again；
Step 3 forces the ball that builds the pressure to follow fracturing fluid is counter to be together discharged to ground, then flows into control by each switchable formula
Device processed, which is realized, controls aquatic production.
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| CN201810305956.0A CN108397181B (en) | 2018-04-08 | 2018-04-08 | Combined implementation pipe column and method for fracturing and water control production |
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|---|---|---|---|
| CN201810305956.0A CN108397181B (en) | 2018-04-08 | 2018-04-08 | Combined implementation pipe column and method for fracturing and water control production |
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| CN108397181A true CN108397181A (en) | 2018-08-14 |
| CN108397181B CN108397181B (en) | 2020-06-12 |
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| CN110454129A (en) * | 2019-08-08 | 2019-11-15 | 中国石油天然气股份有限公司 | Gas well separate-layer fracturing and water control integrated process pipe column |
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| CN119466778A (en) * | 2024-11-07 | 2025-02-18 | 中国矿业大学(北京) | Full-section hole cycle loading and unloading fracturing device and coal mine hydraulic fracturing method |
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