CN210622761U - Ball seat type packer and oil and gas pipeline conveying system - Google Patents
Ball seat type packer and oil and gas pipeline conveying system Download PDFInfo
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- CN210622761U CN210622761U CN201921673041.1U CN201921673041U CN210622761U CN 210622761 U CN210622761 U CN 210622761U CN 201921673041 U CN201921673041 U CN 201921673041U CN 210622761 U CN210622761 U CN 210622761U
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Abstract
The utility model provides a ball seat type packer and an oil and gas pipeline conveying system, which relate to the technical field of packers and comprise a packer body, a ball seat assembly and a connecting part; the ball seat assembly and the connecting part are arranged in the packer body, and the ball seat assembly is connected with the packer body through the connecting part; the ball seat assembly and the connecting part are made of degradable materials, the outer surfaces of the ball seat assembly and the connecting part are provided with isolation coatings, and the connecting part can be broken from the ball seat assembly so that a broken surface on the ball seat assembly forms a degradable surface; the ball seat of having alleviated among the prior art falls into the technical problem that can't realize the degradation behind the production well, compares with the current ball seat that does not have the degradation function, and the ball seat subassembly after the degradation can not be stifled the artifical well head, does not influence the washing away operation of desilting.
Description
Technical Field
The utility model belongs to the technical field of the packer technique and specifically relates to a ball seat formula packer and oil gas pipeline conveying system are related to.
Background
The ball seat type packer is a device which is commonly used in oil extraction engineering and is used for controlling the on-off of an oil extraction pipeline, the packer is connected with the oil extraction pipeline, a ball seat in the packer is fixed on a shell through a pin shaft in a normal state, and the ball seat and the inner wall of the shell of the packer are kept sealed so as to control the upward channeling of high-pressure gas in a well; before oil gas normally is conveyed, the interior of an oil production pipeline needs to be pressurized, the pin shaft is broken by pressure, the ball seat is separated from the packer shell, and meanwhile, the ball seat falls into a production well.
Along with the exploitation in oil field, constantly piling up of the sand face in the production well, regularly need wash the sand setting in the production well to the artificial well, but normal sealed requirement can only be satisfied to traditional ball seat, receives the influence of its structure and material, and the ball seat falls into unable realization degradation behind the production well, and it can be blocked up the well head of artificial well, and follow-up can only be taken out it through the manual work, otherwise can influence the washing operation of sand setting.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ball seat formula packer and oil gas pipeline conveying system to the ball seat of having alleviated among the prior art falls into the technical problem that can't realize the degradation behind the producing well.
In order to solve the technical problem, the utility model provides a technical scheme lies in:
the utility model provides a ball seat type packer, which comprises a packer body, a ball seat component and a connecting part;
the ball seat assembly and the connecting part are arranged in the packer body, and the ball seat assembly is connected with the packer body through the connecting part;
the ball seat assembly and the connecting portion are made of degradable materials, isolation coatings are arranged on the outer surfaces of the ball seat assembly and the connecting portion, the connecting portion can be broken on the ball seat assembly, and accordingly a broken surface on the ball seat assembly forms a degradation surface.
Further, the ball seat assembly comprises a sealing seat and a sealing ball arranged in the packer body;
the sealing seat is connected with the packer body through the connecting part, and the sealing ball is in sealing fit with the sealing seat.
Further, a sealing element is arranged between the sealing seat and the packer body.
Further, the packer also comprises a fixing part connected in the packer body;
the packer is characterized in that a protruding portion is arranged in the packer body, and the connecting portion is clamped between the fixing portion and the protruding portion.
Furthermore, the fixing part is arranged to be a fixed ring sleeve, and the fixed ring sleeve is detachably connected with the packer body.
Further, the fixed ring sleeve is in threaded connection with the packer body.
Further, the connecting portion are provided as a shearing boss, and the shearing boss is integrally formed on the ball seat assembly.
Further, the degradable material is arranged to be aluminum magnesium alloy.
Further, the sealing element is a rubber sealing ring.
The utility model provides a pair of oil gas pipeline conveying system, including above-mentioned ball seat formula packer.
Technical scheme more than combining, the utility model discloses the beneficial effect who reaches lies in:
the utility model provides a ball seat type packer, which comprises a packer body, a ball seat component and a connecting part; the ball seat assembly and the connecting part are arranged in the packer body, and the ball seat assembly is connected with the packer body through the connecting part; ball seat subassembly and connecting portion all set up to degradable material, and the surface between them all is provided with the barrier coating, and connecting portion can be followed the fracture on the ball seat subassembly to fracture face on making the ball seat subassembly forms the degradation face.
The isolation coatings are arranged on the outer surfaces of the ball seat assembly and the connecting part, so that the ball seat assembly cannot be degraded before the connecting part is broken, the ball seat assembly can be separated from the packer body and fall into the production well after the connecting part is broken, meanwhile, broken surfaces can be formed on the ball seat assembly and the connecting part, and the broken surfaces are exposed in the air to form degradation surfaces, so that the ball seat assembly is degraded in the production well; compare with the current ball seat that does not have the degradation function, ball seat subassembly after the degradation can not die the artifical well head, does not influence the washing away operation of desilting.
Drawings
For a clear explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a ball seat type packer provided by an embodiment of the present invention;
FIG. 2 is a half sectional view of a ball seat type packer provided by an embodiment of the present invention;
fig. 3 is an enlarged schematic view of a structure in fig. 2.
Icon: 100-a packer body; 110-a boss; 200-a ball seat assembly; 210-a sealing seat; 220-a sealing ball; 230-a seal; 300-a connecting portion; 400-fixed part.
Detailed Description
The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the present embodiment provides a ball set packer including a packer body 100, a ball seat assembly 200, and a connecting portion 300; the ball seat assembly 200 and the connecting portion 300 are both disposed within the packer body 100, the ball seat assembly 200 being connected to the packer body 100 by the connecting portion 300; ball seat assembly 200 and connecting portion 300 all set up to degradable material, and the surface of both all is provided with the barrier coating, and connecting portion 300 can break from ball seat assembly 200 to make the fracture surface on the ball seat assembly 200 form the degradation face.
Specifically, the packer body 100 can be set as a metal or rubber packer casing, a conveying passage for oil and gas is arranged in the packer body 100, the ball seat assembly 200 and the connecting portion 300 are both arranged in the conveying passage, the ball seat assembly 200 is connected with the packer body 100 through the connecting portion 300, preferably, the connecting portion 300 is integrally formed on the ball seat assembly 200, and one end of the connecting portion 300, which is far away from the ball seat assembly 200, is connected with the packer body 100; ball seat subassembly 200 and connecting portion 300 all set up to degradable material to the surface of ball seat subassembly 200 and connecting portion 300 all is provided with the barrier coating, and the barrier coating can set up to polyurethane waterproof coating, and the barrier coating makes ball seat subassembly 200 and connecting portion 300 and outside air, water and greasy dirt etc. keep apart, has avoided ball seat subassembly 200 to take place the degradation in packer body 100.
The ball seat assembly 200 is connected with the packer body 100 in a sealing mode, one end of the packer body 100 is provided with an oil gas inlet, the other end of the packer body 100 is provided with an oil gas outlet, and hydraulic force in the packer acts on the ball seat assembly 200 to enable the connecting portion 300 to be broken; before the connection 300 is broken, the ball seat assembly 200 performs a normal sealing function within the packer body 100; after the connection portion 300 is broken, the ball seat assembly 200 can be detached from the packer body 100 and dropped into a production well of an oil and gas field, and at the same time, a broken surface is formed on the connection portion 300 and the packer body 100, and the broken surface is exposed to a humid and acid-base unbalanced environment in the production well, so that the connection portion 300 and the ball seat assembly 200 are gradually degraded.
The utility model provides a ball seat formula packer, because the surface of ball seat subassembly 200 and connecting portion 300 all is provided with the barrier coating, before connecting portion 300 breaks, ball seat subassembly 200 can not take place to degrade, after connecting portion 300 breaks, ball seat subassembly 200 can break away from packer body 100 and fall into the production well, can form the fracture surface on ball seat subassembly 200 and connecting portion 300 simultaneously, and the fracture surface exposes and forms the degradation face in the air for ball seat subassembly 200 degrades in the production well; compared with the existing ball seat without the degradation function, the ball seat assembly 200 after degradation can not block up the artificial wellhead, and does not influence the scouring operation of settled sand.
On the basis of the above embodiments, further, the ball seat assembly 200 in the ball seat type packer provided by the present embodiment includes a sealing seat 210 and a sealing ball 220 which are arranged in the packer body 100; the sealing seat 210 is connected with the packer body 100 through a connecting part 300, and the sealing ball 220 is in sealing fit with the sealing seat 210.
Specifically, the sealing seat 210 and the sealing ball 220 are both arranged in the packer body 100, the connecting portion 300 is integrally formed in the sealing seat 210, the sealing seat 210 is connected with the packer body 100 through the connecting portion 300, and the sealing seat 210 is connected with the inner wall of the packer body 100 in a sealing manner; the seal receptacle 210 and the seal ball 220 are both made of degradable materials, and the outer surfaces of the seal receptacle 210 and the seal ball 220 are both provided with an isolation coating.
The center of the sealing seat 210 is provided with a hollow channel, one end of the sealing seat 210 close to the sealing ball 220 is provided with a conical surface, and the sealing ball 220 can be in sealing fit with the conical surface; one end of the packer body 100 close to the conical surface on the sealing seat 210 is provided as an inlet, the other end is provided as an outlet, the sealing ball 220 is pressed against the sealing conical surface by hydraulic pressure, and further, the hydraulic pressure acts on the connecting part 300 through the sealing seat 210 to shear the connecting part 300; after the connecting part 300 is broken, the sealing seat 210 and the sealing ball 220 are integrally separated from the packer body 100 and fall into a production well, and the broken surface formed after the sealing seat 210 and the connecting part 300 are broken serves as the degradation surface of the sealing seat 210 and the connecting part 300; the sealing ball 220 deforms under the action of hydraulic pressure, so that the isolation coating on the outer surface of the sealing ball is cracked, and the sealing ball 220 can be slowly degraded after falling into a production well.
Further, a sealing element 230 is disposed between the seal seat 210 and the packer body 100.
Specifically, the sealing element 230 may be a rubber sealing ring such as an O-ring or a star-shaped ring, an annular groove is provided on the inner wall of the packer body 100, the sealing element 230 is embedded into the groove, and a portion of the sealing element 230 extending out of the groove abuts against the outer wall of the seal seat 210, so that the seal seat 210 and the packer body 100 are connected in a sealing manner.
The ball seat type packer provided by the embodiment has the advantages that the sealing seat 210 is matched with the sealing ball 220, so that the packer has a single-pass characteristic; by providing the sealing member 230 between the seal seat 210 and the packer body 100, the seal seat 210 is in sealing connection with the inner wall of the packer body 100, and leakage of oil and gas from the gap between the seal seat 210 and the packer body 100 is avoided.
On the basis of the above embodiments, further, the ball seat type packer provided by the present embodiment further includes a fixing portion 400 connected to the inside of the packer body 100; the packer body 100 is provided with a protrusion 110 therein, and the connecting portion 300 is clamped between the fixing portion 400 and the protrusion 110.
Specifically, the fixing portion 400 is configured as a fixing sleeve or a fixing block, and the fixing portion 400 is disposed in the packer body 100, preferably, the fixing portion 400 is detachably connected to the packer body 100, and more specifically, the fixing portion 400 may be connected to the packer body 100 through a thread or a screw, so that the fixing portion 400 may be conveniently fixed in the packer body 100 or removed from the packer body 100; the bulge 110 in the packer body 100 is arranged to be an annular boss, the axis of the annular boss coincides with the axis of the fixing part 400, a clamping groove is formed between the fixing part 400 and the bulge 110, the connecting part 300 extends into the clamping groove, and the fixing part 400 compresses the connecting part 300 in the clamping groove.
Further, the fixing portion 400 is configured as a fixing ring sleeve, and the fixing ring sleeve is detachably connected to the packer body 100.
Specifically, the fixed ring sleeve is arranged in the packer body 100, the central axis of the fixed ring sleeve coincides with the axis of the packer body 100, the fixed ring sleeve is connected with the inner wall of the packer body 100 through a screw or a thread, and the connecting portion 300 is clamped between the fixed ring sleeve and the boss 110.
Further, the fixed collar is threadedly coupled to the packer body 100.
Specifically, the fixing ring sleeve is a metal ring sleeve, the outer surface of the fixing ring sleeve is provided with threads, and the inner wall of the packer body 100 is provided with internal threads matched with the threads on the fixing ring sleeve; during assembly, the sealing seat 210 is placed into the packer body 100, and then the fixed ring sleeve is gradually screwed into the packer body 100, so that the fixed ring sleeve pushes the sealing seat 210 to move, the connecting portion 300 is abutted against the boss 110, and the connecting portion 300 is clamped between the fixed ring sleeve and the boss 110.
The ball seat type packer provided by the embodiment is in threaded connection with the packer body 100 through the fixed ring sleeve, so that the fixed ring sleeve and the packer body 100 can be conveniently disassembled and assembled; the connecting portion 300 is matched with the fixed ring sleeve and the protruding portion 110, so that the sealing seat 210 is conveniently fixed in the packer body 100, and the sealing seat 210 is conveniently replaced.
On the basis of the above embodiments, further, the connecting portion 300 in the ball seat type packer provided by the present embodiment is configured as a shear boss, and the shear boss is integrally formed on the ball seat assembly 200.
Specifically, the shearing boss is an annular boss, the shearing boss, the sealing seat 210 and the sealing ball 220 are all made of degradable materials, and the outer surfaces of the shearing boss, the sealing seat 210 and the sealing ball 220 are all provided with isolation coatings; the cutting boss and the sealing seat 210 are integrally formed, and the cutting boss is clamped between the fixed ring sleeve and the boss 110; the shearing boss is sheared under the effect of hydraulic force, so that the sealing seat 210 and the sealing ball 220 integrally fall into the production well, the maximum shearing force capable of being borne by the shearing boss is related to the size of the shearing boss, the larger the width of the shearing boss is, the larger the shearing force capable of being borne by the shearing boss is, and the specific size of the shearing boss can be set according to engineering requirements.
Further, the degradable material is arranged to be aluminum magnesium alloy.
Specifically, the shearing boss, the sealing seat 210 and the sealing ball 220 are made of degradable materials, preferably, the degradable materials are aluminum magnesium alloy, and the aluminum magnesium alloy can chemically react with water and substances containing chloride ions, so that the aluminum magnesium alloy is corroded and degraded; after the connecting part 300 is broken, a broken surface is formed on the connecting part 300 and the sealing seat 210, the connecting part 300 and the sealing seat 210 are slowly degraded from the broken surface in the production well, the sealing ball 220 is extruded and deformed under the action of hydraulic force, so that the isolation coating on the surface of the sealing ball 220 is damaged, and the sealing ball 220 is also slowly degraded in the production well.
Further, the sealing member 230 is provided as a rubber sealing ring.
Specifically, rubber seal can set up to O type rubber seal and star type rubber seal etc. and the preferred, rubber seal sets up to O type rubber seal, as shown in fig. 3, is provided with the recess on the inner wall of packer body 100, and in rubber seal embedded into the recess, the part that rubber seal stretches out the recess supported with seal receptacle 210.
As the optional implementation mode of this embodiment, rubber seal sets up to a plurality ofly, and is corresponding, has set gradually a plurality of recesses at the inner wall of packer body 100 and along its axis direction, and a plurality of rubber seal imbed respectively in a plurality of recesses, and a plurality of rubber seal cooperate, have improved the sealed effect between seal receptacle 210 and packer body 100 greatly.
According to the ball seat type packer provided by the embodiment, the degradable material is aluminum magnesium alloy, so that the degradation of the connecting part 300 and the ball seat assembly 200 in a production well is realized; the sealing element 230 is arranged to be a rubber sealing ring, and the rubber sealing rings are arranged to be a plurality of rubber sealing rings, so that the sealing capacity between the sealing seat 210 and the packer body 100 is improved, and the performance of the ball seat type packer provided by the embodiment is more reliable.
On the basis of the above embodiment, further, the oil and gas pipeline conveying system provided by the embodiment comprises a ball seat type packer. The oil and gas pipeline conveying system comprises a plurality of oil and gas pipelines, and the ball seat type packer is connected in series in the oil and gas pipelines according to the use requirement. Because the technical effect of the oil and gas pipeline conveying system provided by the embodiment is the same as that of the ball seat type packer provided by the embodiment, the description is omitted here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A ball seat type packer is characterized by comprising: a packer body (100), a ball seat assembly (200), and a connection (300);
the ball seat assembly (200) and the connecting portion (300) are both disposed within the packer body (100), the ball seat assembly (200) being connected to the packer body (100) through the connecting portion (300);
the ball seat assembly (200) and the connecting portion (300) are made of degradable materials, the outer surfaces of the ball seat assembly and the connecting portion are provided with isolation coatings, and the connecting portion (300) can be broken from the ball seat assembly (200) so that a broken surface on the ball seat assembly (200) forms a degradation surface.
2. The ball set packer of claim 1, wherein the ball seat assembly (200) comprises a sealing seat (210) and a sealing ball (220) disposed within the packer body (100);
the sealing seat (210) is connected with the packer body (100) through the connecting part (300), and the sealing ball (220) is in sealing fit with the sealing seat (210).
3. A ball set packer according to claim 2, characterised in that a seal (230) is arranged between the seal seat (210) and the packer body (100).
4. The ball set packer of claim 1, further comprising a retainer (400) connected within the packer body (100);
a bulge (110) is arranged in the packer body (100), and the connecting part (300) is clamped between the fixing part (400) and the bulge (110).
5. A ball set packer according to claim 4, characterised in that the fixing part (400) is provided as a fixing collar which is detachably connected to the packer body (100).
6. A ball set packer according to claim 5, characterised in that the fixing collar is screwed to the packer body (100).
7. A ball set packer according to claim 1, wherein the connection portion (300) is provided as a shear boss integrally formed to the ball seat assembly (200).
8. The ball set packer of claim 1, wherein the degradable material is provided as an aluminum magnesium alloy.
9. A ball set packer according to claim 3, characterised in that the sealing element (230) is provided as a rubber sealing ring.
10. An oil and gas pipeline transportation system comprising the ball set packer of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921673041.1U CN210622761U (en) | 2019-10-08 | 2019-10-08 | Ball seat type packer and oil and gas pipeline conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921673041.1U CN210622761U (en) | 2019-10-08 | 2019-10-08 | Ball seat type packer and oil and gas pipeline conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210622761U true CN210622761U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921673041.1U Active CN210622761U (en) | 2019-10-08 | 2019-10-08 | Ball seat type packer and oil and gas pipeline conveying system |
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| CN (1) | CN210622761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941512A (en) * | 2022-04-19 | 2022-08-26 | 阜宁县宏达石化机械有限公司 | Step-by-step deblocking washable well packer |
-
2019
- 2019-10-08 CN CN201921673041.1U patent/CN210622761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941512A (en) * | 2022-04-19 | 2022-08-26 | 阜宁县宏达石化机械有限公司 | Step-by-step deblocking washable well packer |
| CN114941512B (en) * | 2022-04-19 | 2023-10-03 | 阜宁县宏达石化机械有限公司 | Step-by-step deblocking well cleanable packer |
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Inventor after: Zhang Yajie Inventor after: Zhang Songling Inventor after: Li Ying Inventor after: Xue Xuzhou Inventor after: Li Jiaolong Inventor after: Wang Hongliang Inventor after: Zhang Shaoyang Inventor after: Chen Hongbing Inventor before: Zhang Yajie Inventor before: Zhang Songling Inventor before: Li Ying Inventor before: Xue Xuzhou Inventor before: Li Jiaolong Inventor before: Wang Hongliang Inventor before: Zhang Shaoyang Inventor before: Chen Hongbing |