CN219412541U - Underground test blanking plug for production logging - Google Patents
Underground test blanking plug for production logging Download PDFInfo
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- CN219412541U CN219412541U CN202320989105.9U CN202320989105U CN219412541U CN 219412541 U CN219412541 U CN 219412541U CN 202320989105 U CN202320989105 U CN 202320989105U CN 219412541 U CN219412541 U CN 219412541U
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- sealing
- blanking plug
- production logging
- butt joint
- pawl
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Abstract
The utility model relates to the technical field of oil and gas exploitation, in particular to a downhole testing blanking plug for production logging, which comprises a bottom cover, wherein one end of the bottom cover is connected with an outer sealing cylinder in a sealing way, the other end of the outer sealing cylinder is connected with a pawl mandrel in a sealing way, the other end of the pawl mandrel is connected with a sealing part in a sealing way, the sealing part comprises a plurality of sealing cylinders, sealing connecting assemblies are arranged among the sealing cylinders, and the sealing part is connected with the pawl mandrel in a sealing way through the sealing connecting assemblies. This kind of production logging is test blanking plug in pit drives movable rod through twisting sealing bolt, rotates around its middle part through the connecting rod, dock butt joint piece and annular butt joint groove, realizes the equipment to give sealing tube inner wall pressure, make the sealing washer play sealed effect better, realize well internal pressure seal, when the test blanking plug goes into the shaft bottom under coiled tubing effect, Y-tool sealing tube lower part pressure and upper portion pressure seal isolation nature, guarantee its reliability when coiled tubing moves about simultaneously.
Description
Technical Field
The utility model relates to the technical field of oil and gas exploitation, in particular to a production logging underground test blanking plug.
Background
In the production process of an electric submersible pump oil well, in order to obtain relevant dynamic parameters such as temperature, pressure, flow, fluid properties and the like of fluid at each production horizon under the well, dynamic monitoring is needed to be carried out on the oil well through production logging so as to obtain the relevant dynamic parameters. Logging is carried out under the normal running state of the electric pump, in order to ensure the normal running of the electric submersible pump during logging, a testing blanking plug is used for replacing the sealing work of the production blanking plug, the testing blanking plug is arranged in a Y-shaped working cylinder of a production pipe column in a seat mode, the sealing of the working cylinder is completed outside through a sealing surface matched with the inner wall of the working cylinder and a sealing ring, the internal design requirement of the testing blanking plug can penetrate through a logging cable, and the logging instrument carried by the cable can be lifted up or lowered down at different speeds to acquire data. The logging cable requires the inside of the test plug to be always in a sealed state during movement or rest.
Under the premise of ensuring normal production of an oil-gas well, the integrity of a shaft is ensured, the well control requirement standard of the oil-gas well is met, the pressure sealing in the well is difficult to realize, the sealing isolation between the lower pressure and the upper pressure of the Y-tool sealing cylinder is poor when the test plug enters the well bottom under the action of the continuous oil pipe, and meanwhile, the reliability of the Y-tool sealing cylinder is difficult to ensure when the continuous oil pipe moves up and down.
To solve the above problems, we have made improvements to this and proposed a production logging downhole test plug.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a production logging underground test blanking plug which comprises a bottom cover, wherein one end of the bottom cover is connected with an outer sealing cylinder in a sealing way, the other end of the outer sealing cylinder is connected with a pawl mandrel in a sealing way, the other end of the pawl mandrel is connected with a sealing part in a sealing way, the sealing part comprises a plurality of sealing cylinders, sealing connecting components are arranged among the sealing cylinders, the sealing part is connected with the pawl mandrel in a sealing way through the sealing connecting components, and the sealing part is also connected with a top cover in a sealing way through the sealing connecting components.
As a preferable technical scheme of the utility model, the sealing connection assembly comprises a movable rod, annular butt joint grooves are formed in the inner walls of the sealing cylinder and the top cover, a butt joint block which is in butt joint with the annular butt joint grooves is arranged at one end of the movable rod, a connecting rod is hinged to the other end of the movable rod, an adapter block is hinged to the other end of the connecting rod, and a sealing bolt is connected to the top surface of the adapter block in a switchover mode.
As a preferable technical scheme of the utility model, the movable rod is hinged on the inner walls of the sealing cylinder and the pawl mandrel at the middle part, and the sealing bolt is in threaded connection with the sealing cylinder and the pawl mandrel.
As a preferable technical scheme of the utility model, sealing rings are arranged on the contact surface of the sealing cylinder and the top cover and the contact surface between the two sealing cylinders.
As a preferable technical scheme of the utility model, a plurality of elastic pawls are arranged on the circumferential array of the outer wall of the pawl mandrel.
As a preferable technical scheme of the utility model, an outer sealing ring is sleeved outside the outer sealing cylinder.
As a preferable technical scheme of the utility model, an outer sealing compression ring for compressing the outer sealing ring is sleeved outside the outer sealing ring.
The beneficial effects of the utility model are as follows: this kind of production logging is test blanking plug in pit drives movable rod through twisting sealing bolt, rotates around its middle part through the connecting rod, dock butt joint piece and annular butt joint groove, realizes the equipment to give sealing tube inner wall pressure, make the sealing washer play sealed effect better, realize well internal pressure seal, when the test blanking plug goes into the shaft bottom under coiled tubing effect, Y-tool sealing tube lower part pressure and upper portion pressure seal isolation nature, guarantee its reliability when coiled tubing moves about simultaneously.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic perspective view of a production logging downhole test plug according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a production logging downhole test plug of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 2;
in the figure: 1. a bottom cover; 2. an outer seal cartridge; 3. a pawl mandrel; 4. a sealing part; 5. a sealing cylinder; 6. sealing the connection assembly; 7. a top cover; 8. a movable rod; 9. a connecting rod; 10. a transfer block; 11. a sealing bolt; 12. an elastic pawl; 13. an outer seal ring; 14. and an outer sealing compression ring.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Examples: as shown in fig. 1-3, a downhole testing blanking plug for production logging comprises a bottom cover 1, one end of the bottom cover 1 is connected with an outer sealing cylinder 2 in a sealing manner, the other end of the outer sealing cylinder 2 is connected with a pawl mandrel 3 in a sealing manner, the other end of the pawl mandrel 3 is connected with a sealing portion 4 in a sealing manner, the sealing portion 4 comprises a plurality of sealing cylinders 5, sealing connection assemblies 6 are arranged among the plurality of sealing cylinders 5, the sealing portion 4 is connected with the pawl mandrel 3 in a sealing manner through the sealing connection assemblies 6, and the sealing portion 4 is also connected with a top cover 7 in a sealing manner through the sealing connection assemblies 6.
The sealing connection assembly 6 comprises a movable rod 8, annular butt joint grooves are formed in the inner walls of the sealing barrel 5 and the top cover 7, a butt joint block which is in butt joint with the annular butt joint grooves is arranged at one end of the movable rod 8, a connecting rod 9 is hinged to the other end of the movable rod 8, a switching block 10 is hinged to the other end of the connecting rod 9, a sealing bolt 11 is connected to the top surface of the switching block 10 in a switching mode, the sealing bolt 11 is screwed, the movable rod 8 is driven to rotate around the middle portion of the sealing bolt 11 through the connecting rod 9, the butt joint block is in butt joint with the annular butt joint grooves, assembly is achieved, pressure is applied to the inner wall of the sealing barrel 5, and sealing effects of the sealing ring are better.
The movable rod 8 is hinged to the inner walls of the sealing cylinder 5 and the pawl mandrel 3 at the middle part, and the sealing bolt 11 is connected to the sealing cylinder 5 and the pawl mandrel 3 in a threaded manner.
The sealing rings are arranged on the contact surface between the sealing cylinder 5 and the top cover 7 and the contact surface between the two sealing cylinders 5, so that the tightness between the sealing cylinders 5 is improved.
The outer wall circumference array of the pawl mandrel 3 is provided with a plurality of elastic pawls 12.
The outside of the outer sealing cylinder 2 is sleeved with an outer sealing ring 13, the outside of the outer sealing ring 13 is sleeved with an outer sealing compression ring 14 for compressing the outer sealing ring 13, the outer sealing ring 13 is used for sealing a gap between the underground test plug and the Y-tool sealing cylinder, and the outer sealing ring 13 is arranged on the outer wall of the plug outer sealing cylinder 2 through the outer sealing compression ring 13.
Working principle: the production logging underground test plug is firstly checked before being used, whether each component part of the production logging underground test plug can be normally used or not, the movable rod 8 is driven to rotate around the middle of the movable rod through the connecting rod 9 by screwing the sealing bolt 11, the butt joint block is in butt joint with the annular butt joint groove, assembly is achieved, the inner wall pressure of the sealing cylinder 5 is given, the sealing ring has better sealing effect, in-well pressure sealing is achieved, when the test plug enters the bottom of a well under the action of the continuous oil pipe, the sealing isolation of the lower pressure and the upper pressure of the Y-tool sealing cylinder is guaranteed, and meanwhile the reliability of the test plug is guaranteed when the continuous oil pipe moves up and down.
And then the underground test plug is conveyed to the Y-tool sealing barrel seating position through the coiled tubing optical fiber on the premise of not affecting the normal production of the oil and gas well, the elastic pawls 5 on the outer wall of the pawl mandrel 4 can be clamped with the Y-tool sealing barrel, so that the underground test plug and the Y-tool sealing barrel can be conveniently in butt joint and fixation, and the underground test plug can be used for carrying out subsequent underground tests.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a production logging is test blanking plug in pit, includes bottom (1), its characterized in that, bottom (1) one end sealing connection has outer sealing tube (2), outer sealing tube (2) other end sealing connection has pawl dabber (3), pawl dabber (3) other end sealing connection has sealing part (4), sealing part (4) are including a plurality of sealing tube (5), a plurality of be equipped with sealing connection subassembly (6) between sealing tube (5), just sealing part (4) are through sealing connection subassembly (6) and pawl dabber (3) sealing connection, sealing part (4) are still through sealing connection subassembly (6) sealing connection top cap (7).
2. The underground production logging test plug according to claim 1, wherein the sealing connection assembly (6) comprises a movable rod (8), annular butt joint grooves are formed in the inner walls of the sealing cylinder (5) and the top cover (7), a butt joint block which is in butt joint with the annular butt joint grooves is arranged at one end of the movable rod (8), a connecting rod (9) is hinged to the other end of the movable rod (8), a connecting block (10) is hinged to the other end of the connecting rod (9), and sealing bolts (11) are connected to the top surface of the connecting block (10) in a switching mode.
3. A downhole testing blanking plug for production logging according to claim 2, wherein the movable rod (8) is hinged to the inner walls of the sealing cylinder (5) and the pawl mandrel (3) at the middle part, and the sealing bolt (11) is connected to the sealing cylinder (5) and the pawl mandrel (3) in a threaded manner.
4. A downhole testing blanking plug for production logging according to claim 1, wherein the contact surface of the sealing drums (5) with the top cover (7) and the contact surface between the two sealing drums (5) are provided with sealing rings.
5. A production logging downhole testing blanking plug according to claim 1, wherein the ratchet spindle (3) is provided with a plurality of resilient pawls (12) in circumferential arrays on the outer wall.
6. A production logging downhole testing blanking plug according to claim 1, wherein the outer sealing cylinder (2) is externally sleeved with an outer sealing ring (13).
7. A downhole testing blanking plug for production logging according to claim 6, wherein the outer sealing ring (13) is externally sleeved with an outer sealing pressure ring (14) for pressing the outer sealing ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989105.9U CN219412541U (en) | 2023-04-19 | 2023-04-19 | Underground test blanking plug for production logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989105.9U CN219412541U (en) | 2023-04-19 | 2023-04-19 | Underground test blanking plug for production logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219412541U true CN219412541U (en) | 2023-07-25 |
Family
ID=87243958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320989105.9U Active CN219412541U (en) | 2023-04-19 | 2023-04-19 | Underground test blanking plug for production logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219412541U (en) |
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2023
- 2023-04-19 CN CN202320989105.9U patent/CN219412541U/en active Active
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