CN112682000B - Hydraulic setting tool for completing cement squeezing operation by one-trip pipe column - Google Patents

Hydraulic setting tool for completing cement squeezing operation by one-trip pipe column Download PDF

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Publication number
CN112682000B
CN112682000B CN201910993687.6A CN201910993687A CN112682000B CN 112682000 B CN112682000 B CN 112682000B CN 201910993687 A CN201910993687 A CN 201910993687A CN 112682000 B CN112682000 B CN 112682000B
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sliding sleeve
sleeve
shear pin
cement
plugging
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CN112682000A (en
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吴晋霞
张瑞
朱和明
杨德锴
廖洪千
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China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering
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China Petroleum and Chemical Corp
Sinopec Research Institute of Petroleum Engineering
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Abstract

The invention provides a hydraulic setting tool for completing cement squeezing operation by a tubular column once, which comprises a tubular body component, a setting component, a driving component for driving the setting component to set and release a cement, and a blocking sliding sleeve for preventing cement slurry from leaking out during the cement squeezing operation, wherein the driving component is sleeved on the tubular body component and is connected with the tubular body component by starting a shear pin; the seat sealing piece is positioned at the driving end of the driving component and is connected with the pipe body component through a releasing shear pin; the sealing sliding sleeve is installed in the pipe body assembly through a sliding sleeve shear pin and moves downwards to the inside of the seat sealing piece when the sliding sleeve shear pin is sheared off. The invention has the advantages of short operation time, low cost, safe cement extruding operation and the like.

Description

Hydraulic setting tool for completing cement squeezing operation by one-trip pipe column
Technical Field
The invention relates to the field of downhole operation, in particular to a hydraulic setting tool for completing cement squeezing operation by one string.
Background
During the oil testing, well completion and well repair processes of oil field development, the pipe outer groove string, the non-production layer position, the permanent abandoned well or the section with unqualified well cementation quality are generally required to be blocked, and then the cement squeezing operation is carried out. The cement squeezing operation is to squeeze cement slurry by using liquid pressure to enable the cement slurry to enter a well section needing to be sealed in an annular space or enter cracks and pores of a stratum so as to achieve the purposes of sealing an oil-gas layer, plugging a blast hole and plugging casing leakage.
The cement retainer is a common tool in the cement squeezing operation, namely the cement retainer is lowered to the top or the bottom of a cement squeezing target layer for setting, and then cement is squeezed into the target layer from a pipe column. The existing cement retainer mainly has two forms of hydraulic setting and mechanical setting. The hydraulic setting tool is used for vertical wells, inclined wells and horizontal wells, and is high in reliability. However, the drilling tool needs to be taken out after the setting of the cement retainer is finished in the first time of the tubular column, and then the sealing insertion pipe is put in the second time of the tubular column for cement squeezing operation, so that the operation time is wasted, the working hour of the drilling machine is occupied, and the cost is higher; and during the period of taking out the first time of setting and sealing the pipe column and putting in the second time of squeezing the cement pipe column, because the underground mud, the settled sand or other falling objects often settle and block the switch squeezing cement sliding sleeve in the sealed central pipe of the cement retaining device, the second time of sealing insertion pipe can not effectively switch the squeezing cement sliding sleeve of the cement retaining device, thereby the lower part squeezing the cement of the cement retaining device can not be realized and the squeezing cement operation can not be influenced.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a hydraulic setting tool which has short operation time and low cost and ensures the safety of the cement squeezing operation by completing the cement squeezing operation by one pipe column.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the hydraulic setting tool for completing the cement squeezing operation of a pipe column comprises a pipe body assembly, a setting piece, a driving assembly for driving the setting piece to set and release a hand, and a blocking sliding sleeve for preventing cement slurry from leaking out during the cement squeezing operation, wherein the driving assembly is sleeved on the pipe body assembly and is connected with the pipe body assembly through a starting shear pin; the seat sealing piece is positioned at the driving end of the driving component and is connected with the pipe body component through a releasing shear pin; the sealing sliding sleeve is installed in the pipe body assembly through a sliding sleeve shear pin and moves downwards to the inside of the seat sealing piece when the sliding sleeve shear pin is sheared off.
As a further improvement of the technical scheme:
the intensity of the starting shear pin is smaller than that of the releasing shear pin, and the intensity of the releasing shear pin is smaller than that of the sliding sleeve shear pin.
The pipe body assembly comprises a connecting mandrel and a releasing sleeve, and the releasing sleeve is mounted on the connecting mandrel; the starting shear pin is arranged between the lost sleeve and the driving component, and the releasing shear pin is arranged between the lost sleeve and the seat piece.
The driving assembly comprises a piston, a piston sleeve and a butting sleeve, wherein the piston is connected between the piston sleeve and the butting sleeve and drives the piston sleeve and the butting sleeve to move axially; and one end of the butting sleeve, which is far away from the piston, is butted on the seat sealing piece.
A sealing cavity for pushing the piston to move axially is enclosed between the piston and the pipe body assembly, and a liquid inlet through hole communicated with the sealing cavity is formed in the pipe body assembly.
The hydraulic setting tool for completing the cement squeezing operation by one trip of the pipe column further comprises an upper joint, the upper joint is connected with the pipe body assembly, and the piston sleeve is sleeved outside the upper joint in an axially movable manner.
The hydraulic setting tool for completing the cement squeezing operation by one string further comprises a first limiting assembly for limiting the axial position of the plugging sliding sleeve, wherein the first limiting assembly comprises a first clamping ring arranged on the plugging sliding sleeve in a compressed manner and a first clamping groove arranged on the setting part; when the plugging sliding sleeve moves downwards to the inside of the seat sealing piece, the first clamping ring is clamped into the first clamping groove.
When the lower cement squeezing operation is carried out, overflowing holes for allowing slurry to pass through are formed in the plugging sliding sleeve and the seat sealing piece, and when the plugging sliding sleeve moves downwards to be matched with the seat sealing piece in a limiting mode, the overflowing holes of the plugging sliding sleeve are communicated with the overflowing holes of the seat sealing piece to form a slurry overflowing channel.
The hydraulic setting tool for completing the cement squeezing operation by one string further comprises a plugging component for preventing cement slurry from flowing back, the plugging component comprises an inner sliding sleeve and an inner sleeve shear pin, and the inner sliding sleeve is installed in the plugging sliding sleeve through the inner sleeve shear pin; after cement squeezing operation, the inner sliding sleeve descends when the inner sleeve shear pin is sheared off so as to plug the overflowing hole.
The hydraulic setting tool for completing the cement squeezing operation by one string further comprises a second limiting assembly for limiting the axial position of the inner sliding sleeve, and the second limiting assembly comprises a second clamping ring arranged on the inner sliding sleeve in a compressed manner and a second clamping groove arranged on the plugging sliding sleeve; when the inner sliding sleeve blocks the overflowing hole, the second clamping ring is clamped into the second clamping groove.
Compared with the prior art, the invention has the advantages that:
the invention is provided with a plugging sliding sleeve, a driving assembly and a pipe body assembly, wherein the driving assembly is sleeved outside the pipe body assembly and abuts against a seat sealing piece; the shutoff sliding sleeve is located in the body subassembly to the inside annular space of shutoff setting instrument when crowded cement operation, its overall structure is simple, and the equipment is convenient. Simultaneously, body subassembly and drive assembly, be provided with the shear pin of different intensity and function between seat piece and the shutoff sliding sleeve, according to different operation requirements, the corresponding shear pin is cut off in order to accomplish seat respectively, give up and crowded cement operation, convenient operation thereof, and the seat that the seat piece can be realized to a string is given up and crowded cement operation, the difficult problem that conventional hydraulic pressure seat instrument needs two times of string crowded cement operation cycle length, with high costs has been solved, and avoided two times of string to bring impurity and lead to the unable cement operation of realizing the lower part, it has guaranteed going on to crowded smooth safety of cement operation.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the drawings. Wherein:
fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of the blocking sliding sleeve and the setting member during position limitation in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural view of the flow holes in communication in embodiment 2 of the present invention.
Fig. 5 is a schematic structural view of the inner sliding sleeve for blocking the overflowing hole in embodiment 2 of the present invention.
The reference numerals in the figures denote:
1. a tube body assembly; 11. connecting the core shaft; 12. the gloves are thrown; 13. a liquid inlet through hole; 2. a setting member; 3. a drive assembly; 31. a piston; 32. a piston sleeve; 33. a butting sleeve; 34. sealing the cavity; 35. a vent hole; 4. plugging the sliding sleeve; 5. shearing the nails; 51. starting the shear pin; 52. releasing the shear pin; 53. sliding sleeve shear pins; 6. an upper joint; 7. a limiting component; 71. a first snap ring; 72. a first clamping groove; 73. a second snap ring; 74. a second clamping groove; 8. an overflowing hole; 9. a plugging component; 91. an inner sliding sleeve; 911. a ball seat; 912. a pressure building ball; 92. sheathing shear pins inside; 10. and (5) sealing rings.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples, but the scope of the invention is not limited thereto.
Example 1
Fig. 1 and 2 show that in the embodiment of the hydraulic setting tool for completing the squeeze cementing operation by one trip of the pipe column, the hydraulic setting tool is adopted to avoid the problem that the setting pressure of a mechanical setting tool cannot be applied, and the hydraulic setting tool can be widely applied to various vertical wells, horizontal wells and extended reach wells. In this embodiment, the hydraulic pressure setting instrument that crowded cement operation was accomplished to tubular column one trip is used for upper portion crowded cement operation, and hydraulic pressure setting instrument includes body subassembly 1, setting 2, drive assembly 3 and shutoff sliding sleeve 4. Wherein, the setting and sealing part 2 is a bridge plug or a cement retainer; the driving component 3 is sleeved on the pipe body component 1, and the driving end of the driving component 3 is abutted on the setting part 2 so as to drive the setting part 2 to set and release; in the body subassembly 1 was located to shutoff sliding sleeve 4, in shutoff sliding sleeve 4 moved down to setting piece 2 when crowded cement operation to the inside annular space of shutoff setting instrument, prevent that grout from spilling. The whole structure is compact and simple, and the assembly is convenient.
Meanwhile, the driving assembly 3 is connected with the pipe body assembly 1 through the starting shear pin 51, and the starting shear pin 51 can prevent the occurrence of an advanced setting phenomenon caused by well wall abrasion in the well entering process of the setting tool; when the pressure in the pipe rises to the design value of the starting shear pin 51, the starting shear pin 51 is sheared, and the driving component 3 descends to compress the setting piece 2 to realize setting. The seat sealing piece 2 is connected with the pipe body component 1 through a releasing shear pin 52; after the setting piece 2 is set, when the pressure continues to be held to the design value of the releasing shear pin 52, the releasing shear pin 52 shears the section, and the setting piece 2 is separated from the pipe body assembly 1 to realize releasing. The plugging sliding sleeve 4 is arranged in the pipe body component 1 through a sliding sleeve shear pin 53; when suppressing the pressure and rising to the design value of sliding sleeve shear pin 53, sliding sleeve shear pin 53 cuts the section, and shutoff sliding sleeve 4 is down to in the setting piece 2 this moment to the inside annular space of shutoff setting instrument prevents that cement paste from revealing during the cement extruding operation. The hydraulic setting tool is characterized in that shear nails 5 with different strengths and functions are respectively arranged between the pipe body assembly 1 and the driving assembly 3, between the pipe body assembly 1 and the setting part 2 and between the pipe body assembly 1 and the plugging sliding sleeve 4, and the corresponding shear nails 5 are sheared to respectively complete setting, releasing and cement squeezing operation according to different operation requirements, so that the hydraulic setting tool is convenient to operate, the setting releasing and the cement squeezing operation of the setting part 2 can be realized by one pipe column, the problems of long operation period and high cost caused by two pipe column operations of a conventional hydraulic setting tool are solved, the problem that the cement squeezing operation cannot be realized due to impurities brought by two pipe columns is avoided, and the smooth and safe operation of the cement squeezing operation is ensured.
In this embodiment, the strength of the starting shear pin 51 is smaller than that of the releasing shear pin 52, and the strength of the releasing shear pin 52 is smaller than that of the sliding sleeve shear pin 53. The hydraulic setting tool is guaranteed to complete setting, releasing and cement squeezing operation in sequence, and a foundation is provided for realizing setting, releasing and cement squeezing operation of the setting part 2 by one string.
As shown in fig. 1, the tube assembly 1 includes a connecting mandrel 11 and a disposal glove 12. Wherein the throw-away cover 12 is connected to the connecting mandrel 11 by means of a sealing thread in order to provide sufficient connection strength and to prevent leakage of the liquid medium in the drive assembly 3. In this embodiment, the starting shear pin 51 is disposed between the throw sleeve 12 and the driving assembly 3, and the releasing shear pin 52 is disposed between the throw sleeve 12 and the seat 2. The arrangement of the glove 12 ensures the smooth proceeding of setting and releasing of the setting piece 2, and the glove 12 is located between the driving component 3 and the connecting mandrel 11 without occupying redundant space, so that the structure is compact. Further, a sealing ring 10 is arranged between the thrower glove 12 and the seat 2 to ensure an effective seal between the thrower glove 12 and the seat 2.
In this embodiment, the driving assembly 3 includes a piston 31, a piston sleeve 32 and an abutting sleeve 33. The piston 31 is connected between the piston sleeve 32 and the abutting sleeve 33, and the piston 31 drives the piston sleeve 32 and the abutting sleeve 33 to axially move under the action of hydraulic pressure; one end of the abutting sleeve 33 far away from the piston 31 abuts on the seat sealing member 2 to drive the seat sealing member 2 to seat and release. The invention adopts piston drive, has convenient operation, compact structure and small occupied space. In this embodiment, the driving assembly 3 is a single hydraulic cylinder structure, and in other embodiments, the driving assembly 3 may be designed as a multi-hydraulic cylinder structure according to the setting pressure requirement.
Further, a sealed cavity 34 is enclosed between the piston 31 and the tube assembly 1. The pipe body component 1 is provided with a liquid inlet through hole 13, and the liquid inlet through hole 13 is communicated with the sealed cavity 34. During pressing, the liquid medium enters the sealed cavity 34 through the liquid inlet through hole 13 to push the piston 31 to move axially. Meanwhile, the abutting sleeve 33 is provided with a drainage hole 35 to ensure the reliable movement of the piston 31.
Furthermore, the hydraulic setting tool for completing the cement squeezing operation by one string further comprises an upper joint 6, one end of the upper joint 6 is connected with the string, and the other end of the upper joint 6 is connected with the connecting mandrel 11 in a sealing mode. The piston sleeve 32 is sleeved outside the upper joint 6 in an axially movable manner, and the structure is simple and compact.
As shown in fig. 2, the hydraulic setting tool for completing the cementing operation by one trip of the pipe string further comprises a first limiting component. The first limiting assembly comprises a first clamping ring 71 and a first clamping groove 72, the first clamping ring 71 is arranged on the plugging sliding sleeve 4 in a compression mode, the first clamping groove 72 is arranged on the seat sealing piece 2, and the first limiting assembly is simple in structure and high in reliability. When the plugging sliding sleeve 4 moves downwards to the interior of the setting part 2, the first clamping ring 71 is clamped into the first clamping groove 72 to limit the axial position of the plugging sliding sleeve 4, prevent the pressure fluctuation from causing the component to move up and down and ensure that the plugging sliding sleeve 4 reliably seals the annular space in the setting tool during the cement squeezing operation. In this embodiment, the first snap ring 71 is a C-shaped snap ring. In other embodiments, the structure of the limiting assembly 7 as long as it can ensure the axial limiting of the plugging sliding sleeve 4 is within the scope of the present invention.
Further, a sealing ring is arranged between the plugging sliding sleeve 4 and the connecting mandrel 11, so that the cement plugging effect is further improved, and the setting releasing operation is reliably carried out. Meanwhile, the inner diameter of the seat part 2 is equal to the inner diameter of the connecting core shaft 11 and the outer diameter of the plugging sliding sleeve 4, so that the sealing ring still has a sealing function when moving downwards into the seat part 2 along with the plugging sliding sleeve 4.
In this embodiment, one end of the plugging sliding sleeve 4 is a sealing end, so as to suppress the pressure setting and ensure the effective plugging of cement slurry. Meanwhile, the parts of the setting part 2 left underground are easy-to-drill parts, so that drillability is realized during later modification of the shaft.
In this embodiment, the working process of performing the upper portion squeeze cementing operation by the hydraulic setting tool for completing the squeeze cementing operation by one trip of the pipe column is as follows: firstly, a hydraulic setting tool and a setting part 2 are lowered to a designed position through a pipe column; through pressing in the pipe, when the pressure rises to the designed value for starting the shear pin 51, the shear pin 51 is started to shear, and the piston 31 pushes the abutting sleeve 33 to move downwards so as to tightly press and compress the setting piece 2 to realize setting; when the pressure reaches the designed setting value, the lifting pipe column judges whether the cement retainer is successfully set and hung or not through the tonnage change, if the setting and hanging are successful, the pressure continues to be held back to the designed value of the releasing shear pin 52, the releasing shear pin 52 shears the section, and the releasing is realized; then, the pressure is continuously increased to the design value of the sliding sleeve shear pin 53, the sliding sleeve shear pin 53 shears a section, and the blocking sliding sleeve 4 descends to the inside of the setting piece 2 and is locked, so that the inner annular space of the setting tool is blocked before cement squeezing operation; lifting the pipe column to a designed position, and then performing upper cement squeezing operation in the pipe; and after the cement squeezing operation, the pipe column and the setting tool are lifted, and the one-time pipe column cement squeezing operation is completed.
Example 2
Fig. 3 to 5 show another embodiment of the hydraulic setting tool for completing a cementing operation in one trip according to the present invention, which is substantially the same as the previous embodiment except that the hydraulic setting tool of the present embodiment is used for performing a lower cementing operation.
In this embodiment, the blocking sliding sleeve 4 and the seat sealing member 2 are both provided with an overflowing hole 8, when the blocking sliding sleeve 4 moves downwards to be in spacing fit with the seat sealing member 2, the overflowing hole 8 of the blocking sliding sleeve 4 is communicated with the overflowing hole 8 of the seat sealing member 2, so as to provide a slurry overflowing channel for injecting slurry during the lower cement squeezing operation.
Further, the hydraulic setting tool for completing the cement squeezing operation by one trip of the pipe column also comprises a plugging assembly 9. The plugging component 9 comprises an inner sliding sleeve 91 and an inner sleeve shear pin 92, wherein the inner sliding sleeve 91 is installed in the plugging sliding sleeve 4 through the inner sleeve shear pin 92. After the cement squeezing operation, the inner sliding sleeve 91 moves downwards when the inner sleeve shear nail 92 is sheared, so as to block the overflowing hole 8 and prevent the cement slurry from flowing back. The plugging sliding sleeve 4 and the inner sliding sleeve 91 are initially linked and separated in the later period, so that the hydraulic setting tool is ensured to be smoothly set and hung in the earlier period and release the setting part 2, and the overflowing hole 8 is closed after cement squeezing operation in the later period to prevent cement paste from returning.
Furthermore, the hydraulic setting tool for completing the cement squeezing operation by one trip of the pipe column further comprises a second limiting component. The second limiting component comprises a second clamping ring 73 and a second clamping groove 74, the second clamping ring 73 is arranged on the inner sliding sleeve 91 in a compression mode, the second clamping groove 74 is arranged on the blocking sliding sleeve 4, and the second limiting component is simple in structure and high in reliability. When the inner sliding sleeve 91 blocks the overflowing hole 8, the second clamping ring 73 is clamped into the second clamping groove 74 to limit the axial position of the inner sliding sleeve 91, and at the moment, even if the pressure-retaining ball 912 moves up and down, the position of the inner sliding sleeve 91 is not influenced, and cement slurry cannot flow back. In this embodiment, the second snap ring 73 is a C-shaped snap ring. In other embodiments, the structure of the limiting assembly 7 as long as it can ensure the axial limitation of the inner sliding sleeve 91 is within the scope of the present invention.
In this embodiment, a sealing ring is arranged between the inner sliding sleeve 91 and the plugging sliding sleeve 4 to ensure effective sealing between the inner sliding sleeve 91 and the plugging sliding sleeve 4. Meanwhile, a ball seat 911 is provided at the upper end of the inner sliding sleeve 91 to cooperate with the pressure building ball 912 in a sealing manner and push the inner sliding sleeve 91 to move downward.
In this embodiment, the working process of performing the lower part cementing operation by the hydraulic setting tool for completing the cementing operation by one pipe column is as follows: firstly, a hydraulic setting tool and a setting part 2 are lowered to a designed position through a pipe column; when the pressure rises to the designed value of the starting shear pin 51 through pressing in the pipe, the starting shear pin 51 is sheared off, and the piston 31 pushes the abutting sleeve 33 to move downwards so as to tightly press and compress the setting piece 2 to realize setting; when the pressure reaches a designed setting value, the lifting pipe column judges whether the cement retainer is successfully set or not through tonnage change, if the setting is successful, the pressure is continuously suppressed to the designed value of the releasing shear pin 52, the releasing shear pin 52 cuts the section, and releasing is realized; then, continuing to suppress the pressure to the design value of the sliding sleeve shear pin 53, shearing the sliding sleeve shear pin 53, descending the sealing sliding sleeve 4 into the setting piece 2 at the moment and locking so as to seal the annular space in the setting tool before cement squeezing operation, and meanwhile, communicating the overflowing hole 8 of the sealing sliding sleeve 4 with the overflowing hole 8 of the setting piece 2 to perform lower cement squeezing operation; after the lower part cement squeezing operation, a pressure holding ball 912 is put in, the pressure holding ball 912 descends to a ball seat 911, when the pressure is held to the design value of an inner sleeve shear pin 92, the inner sleeve shear pin 92 shears, the inner sliding sleeve 91 descends to close a overflowing hole 8, and meanwhile, the inner sliding sleeve 91 is locked to prevent cement slurry from returning; and then, the pipe column and the setting tool are put forward, and the pipe column cement extruding operation is completed once.
While the invention has been described with reference to a preferred embodiment, various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as no structural conflict exists. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (8)

1. The hydraulic setting tool for completing the cement squeezing operation by one string is characterized by comprising a pipe body assembly, a setting piece, a driving assembly for driving the setting piece to set and release hands, and a blocking sliding sleeve for preventing cement paste from leaking during the cement squeezing operation, wherein the driving assembly is sleeved on the pipe body assembly and is connected with the pipe body assembly through a starting shear pin; the seat sealing piece is positioned at the driving end of the driving component and is connected with the pipe body component through a releasing shear pin; the plugging sliding sleeve is arranged in the pipe body component through a sliding sleeve shear pin and descends into the seat sealing piece when the sliding sleeve shear pin is sheared off,
when the lower part cement squeezing operation is carried out, the plugging sliding sleeve and the seat sealing piece are both provided with overflowing holes for the passing of the cement slurry, when the plugging sliding sleeve descends to be matched with the limit of the seat sealing piece, the overflowing holes of the plugging sliding sleeve are communicated with the overflowing holes of the seat sealing piece to form a cement slurry overflowing channel,
the hydraulic setting tool further comprises a plugging assembly for preventing cement slurry from flowing back, the plugging assembly comprises an inner sliding sleeve and an inner sleeve shear pin, the inner sliding sleeve is installed in the plugging sliding sleeve through the inner sleeve shear pin, and after cement squeezing operation, the inner sliding sleeve moves downwards when the inner sleeve shear pin is sheared to plug the overflowing hole.
2. The hydraulic setting tool for completing a cementing operation by one trip of a pipe string according to claim 1, wherein the strength of the starting shear pin is less than that of the releasing shear pin, and the strength of the releasing shear pin is less than that of the sliding sleeve shear pin.
3. The hydraulic setting tool for completing a cementing operation by one-trip pipe string of claim 2, wherein the pipe body assembly comprises a connecting mandrel and a throw-off sleeve, and the throw-off sleeve is mounted on the connecting mandrel; the starting shear pin is arranged between the lost sleeve and the driving component, and the releasing shear pin is arranged between the lost sleeve and the seat piece.
4. The hydraulic setting tool for completing the cement squeezing operation by one string according to any one of claims 1 to 3, wherein the driving assembly comprises a piston, a piston sleeve and an abutting sleeve, wherein the piston is connected between the piston sleeve and the abutting sleeve and drives the piston sleeve and the abutting sleeve to axially move; one end of the butting sleeve, which is far away from the piston, is butted on the seat sealing piece.
5. The hydraulic setting tool for completing the cement squeezing operation by one trip of the tubular column as claimed in claim 4, wherein a sealed cavity for pushing the piston to move axially is enclosed between the piston and the tubular body assembly, and the tubular body assembly is provided with a liquid inlet through hole communicated with the sealed cavity.
6. The hydraulic setting tool for completing a cementing operation by one trip of a pipe string as recited in claim 5, further comprising an upper joint, wherein the upper joint is connected with the pipe body assembly, and the piston sleeve is axially movably sleeved outside the upper joint.
7. The hydraulic setting tool for completing the cement squeezing operation by one string according to any one of claims 1 to 3, further comprising a first limiting component for limiting the axial position of the plugging sliding sleeve, wherein the first limiting component comprises a first clamping ring arranged on the plugging sliding sleeve in a compressed manner and a first clamping groove arranged on the setting piece; when the plugging sliding sleeve moves downwards to the inside of the seat sealing piece, the first clamping ring is clamped into the first clamping groove.
8. The hydraulic setting tool for completing the cement squeezing operation by one string according to any one of claims 1 to 3, further comprising a second limiting component for limiting the axial position of the inner sliding sleeve, wherein the second limiting component comprises a second clamping ring arranged on the inner sliding sleeve in a compressed manner and a second clamping groove arranged on the plugging sliding sleeve; when the inner sliding sleeve blocks the overflowing hole, the second clamping ring is clamped into the second clamping groove.
CN201910993687.6A 2019-10-18 2019-10-18 Hydraulic setting tool for completing cement squeezing operation by one-trip pipe column Active CN112682000B (en)

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CN114893151B (en) * 2022-04-29 2024-02-20 中石化石油工程技术服务有限公司 Bridge plug hydraulic setting and ash injection integrated tool

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CN209354097U (en) * 2018-08-13 2019-09-06 中国石油天然气股份有限公司 Cement squeezing bridge plug

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