CN216446907U - Novel keep apart flexible two-way short section logging tool that prevents irritating - Google Patents
Novel keep apart flexible two-way short section logging tool that prevents irritating Download PDFInfo
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- CN216446907U CN216446907U CN202122710015.5U CN202122710015U CN216446907U CN 216446907 U CN216446907 U CN 216446907U CN 202122710015 U CN202122710015 U CN 202122710015U CN 216446907 U CN216446907 U CN 216446907U
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Abstract
The utility model discloses a novel isolating flexible bidirectional anti-grouting short section well logging tool, which belongs to the technical field of petroleum well logging instrument equipment and comprises an isolating structure assembly and a flexible structure assembly, wherein anti-grouting pressure bodies are respectively arranged in the isolating structure assembly and the flexible structure assembly, each anti-grouting pressure body comprises a pressure bearing block, an inserting needle seat is arranged in each pressure bearing block, and the anti-grouting pressure bodies are respectively fixed in the isolating structure assembly and the flexible structure assembly through thread structures, so that the problems that after the existing short section well logging tool is damaged, all instrument strings are easy to enter slurry, and the isolating flexible short section cannot ensure the safety of upper and lower end instruments connected with the isolating flexible short section are solved.
Description
Technical Field
The utility model belongs to the technical field of petroleum logging instruments and equipment, and particularly relates to a novel isolating flexible bidirectional anti-filling short-section logging tool which is an important tool in an electrical imaging logging technology.
Background
Petroleum logging instruments can be divided into electrical logging instruments, acoustic logging instruments, radioactive logging instruments and imaging logging instruments according to different applications, and the purpose of the petroleum logging instruments is to acquire rich stratum information and determine oil and gas reservoirs and other reservoirs. As oil and gas exploration and development continues to advance, more formation information and parameters are needed for fine interpretation and evaluation to find more and better "sweet spots" in the producing formation, and electrogram logging becomes a widely used tool including exploration and development wells.
At present, the high-temperature high-pressure well of a high-abrasion block in Chongqing areas mostly adopts a drilling tool transmission mode to measure an electrical imaging project, the temperature of a well hole is high, the pressure of a shaft is high under the complex well condition, due to the design defects of instruments, the unsuccessful logging or rework condition is easy to occur, because the original isolating short section and the flexible short section are not provided with an anti-filling pressure-bearing system, once the isolating flexible short section pressure-bearing system is damaged, the isolating flexible short section can not ensure the safety of the upper end instrument and the lower end instrument connected with the isolating flexible short section, and the flexible part of the original flexible short section adopts an oil-filling structure, the inner side of the isolating flexible short section adopts a rubber tube for oil pressure balance, so that the isolating flexible short section is easy to damage in use, and the maintenance process is more complicated, the cost is higher, and the time is long.
In general, the following problems mainly exist:
firstly, the instrument works at high temperature for a long time, so that the electrical performance of the instrument is easy to deteriorate, and the insulation of the isolating short section is reduced;
secondly, when the original instrument is designed, the protection of the instrument under extreme conditions is not considered, and if any place in the instrument string has a weak link, the instrument string is easy to enter slurry completely, so that the loss is serious;
and thirdly, because the original isolation short section and the flexible short section are both in the shielding case, the back thread between the two instruments is not easy to be found, and the instrument can be possibly dropped into the well.
In order to improve the logging safety and the once logging success rate, a domestic attack on an electric imaging part instrument is needed, and a novel integrated isolation flexible bidirectional anti-irrigation short section is developed.
For example, the patent of the application number "CN 201921270692.6" named as "a nipple of a coiled tubing logging instrument" published by the national intellectual property office in 2020, 5, month and 22 discloses: a nipple joint of a coiled tubing logging instrument comprises an upper joint, a lower joint, an electronic joint, an intermediate joint, a pressure-bearing balance joint, a protection joint, a rotary conductive connector, a data transmission joint, a temperature sensor, a pressure sensor and a tension sensor, wherein the data transmission joint, the temperature sensor and the pressure sensor are all fixed on the outer surface of the upper joint, one end of the rotary conductive connector is connected with an electronic framework in the electronic joint, and the other end of the rotary conductive connector is positioned in the pressure-bearing balance joint; a balance cavity is arranged in the pressure-bearing balance joint, and a balance hole is arranged on the surface of the pressure-bearing balance joint; the tension sensor is fixed in the protective joint, and a conductive contact pin is fixedly arranged in the lower joint; the data transmission joint, the temperature sensor, the pressure sensor, the tension sensor and the conductive contact pin are all connected with an electronic framework in the electronic section through cables. The utility model has compact size, comprehensive functions, safety and good use, and can simultaneously acquire and transmit back various logging data in real time. In case such logging nipple joint is in case when keeping apart nipple joint and flexible nipple joint pressure-bearing system destroyed, keep apart the upper end instrument safety that the nipple joint can't guarantee its connection, flexible nipple joint can't guarantee its safety of connecting the lower extreme instrument.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that in the existing electrical imaging logging technology, after a short section logging tool is damaged, all instrument strings are easy to enter slurry, and the safety of connected upper and lower end instruments cannot be ensured by isolating a flexible short section.
In order to achieve the above object, the technical solution of the present invention is as follows:
the utility model provides a novel keep apart flexible two-way short section logging instrument of preventing irritating, includes isolation structure subassembly and flexible structure subassembly, all be equipped with in isolation structure subassembly and the flexible structure subassembly and prevent irritating the pressure body, prevent irritating the pressure body and include the bearing block, be equipped with the needle bar seat in the bearing block, prevent irritating the pressure body and fix respectively in isolation structure subassembly and flexible structure subassembly through helicitic texture.
Furthermore, the outer side of the pressure bearing block is provided with threads, threaded sleeves are arranged in the isolation structure assembly and the flexible structure assembly, and the anti-irrigation pressure bearing body is fixedly connected with the isolation structure assembly and the flexible structure assembly through the threaded sleeves respectively.
Further, the isolation structure assembly and the flexible structure assembly are of an integrated structure.
Furthermore, the isolation structure assembly further comprises an isolation upper joint, an insulation pressure-bearing body and an insulation shell, wherein the lower end of the isolation upper joint penetrates through the insulation pressure-bearing body and is tightly matched with the insulation pressure-bearing body, and the insulation pressure-bearing body is arranged at the lower end of the isolation upper joint and is arranged on the inner side of the insulation shell.
Further, the isolation upper joint and the insulation pressure-bearing body are pressed tightly through the pressure cap.
Furthermore, an isolation lower joint is further arranged on the inner side of the insulation shell of the isolation structure assembly, and the isolation lower joint (11) is connected with the flexible structure assembly.
Furthermore, the flexible structure assembly further comprises a flexible upper joint, a flexible pressure-bearing body and a flexible lower joint, the flexible pressure-bearing body is arranged in inner holes of the flexible upper joint and the flexible lower joint, and the two sides of the flexible pressure-bearing body are respectively connected with the flexible upper joint and the flexible lower joint.
Furthermore, the lower end of the flexible upper joint is of an outer spherical structure, the upper end of the flexible lower joint is of an inner spherical structure, and a pressing piece is arranged between the outer spherical structure and the inner spherical structure.
Furthermore, the flexible pressure-bearing body is of a tubular structure, two ends of the flexible pressure-bearing body are respectively provided with an annular sealing groove, and an O-shaped sealing ring is arranged in each annular sealing groove.
Further, the flexible structure assembly is a dry flexible structure; the insulating shell is made of a heat-treated PEEK material.
The utility model has the beneficial effects that:
according to the isolating flexible bidirectional anti-grouting short section well logging tool, the anti-grouting pressure-bearing body is additionally arranged on the basis of the original isolating structure assembly and the original flexible structure assembly, so that the problem that the tool cannot be normally used due to the fact that the tool is prevented from being serially connected into slurry when the tool is damaged can be solved.
In the utility model, the outer side of the pressure bearing block is provided with threads, the isolating structure assembly and the flexible structure assembly are internally provided with threaded sleeves, the anti-irrigation pressure bearing body is respectively fixedly connected with the isolating structure assembly and the flexible structure assembly through the threaded sleeves, and the sealing property of the tool can be effectively ensured by adopting a threaded structure.
In the utility model, the isolation structure assembly and the flexible structure assembly are of an integrated structure, so that the potential safety hazard of tripping between the isolation structure assembly and the flexible structure assembly is avoided, the risk of instrument falling into a well is reduced, the safety performance of an instrument string can be improved, and the smooth production is ensured.
Fourthly, the isolation structure assembly further comprises an isolation upper joint, an insulation pressure-bearing body and an insulation shell, the lower end of the isolation upper joint penetrates through the insulation pressure-bearing body and is tightly matched with the insulation pressure-bearing body, and the insulation pressure-bearing body is arranged at the lower end of the isolation upper joint and is arranged on the inner side of the insulation shell, so that the insulation pressure-bearing body can play an expected insulation role, the insulation effect of the isolation structure assembly of the tool is ensured, and the normal and stable work of components in the tool is ensured.
In the utility model, the isolation upper joint and the insulation pressure-bearing body are tightly pressed through the pressing cap, so that the sealing effect of the joint is improved, and the insulation effect of the insulation pressure-bearing body is ensured.
Sixthly, an isolation lower joint is further arranged on the inner side of the insulation shell of the isolation structure assembly, and the isolation lower joint is connected with the flexible structure assembly and connected with the insulation pressure-bearing body to play a role of an insulator.
Seventhly, the flexible structure assembly further comprises a flexible upper joint, a flexible pressure-bearing body and a flexible lower joint, wherein the flexible pressure-bearing body is arranged in inner holes of the flexible upper joint and the flexible lower joint, and two sides of the flexible pressure-bearing body are respectively connected with the flexible upper joint and the flexible lower joint, so that the flexible structure assembly can be bent in multiple ranges while the sealing effect of the connection position is guaranteed.
Eighthly, according to the utility model, the lower end of the flexible upper joint is of an outer spherical structure, the upper end of the flexible lower joint is of an inner spherical structure, a pressing piece is arranged between the outer spherical structure and the inner spherical structure, and the flexible upper joint and the flexible lower joint are matched with the pressing piece, so that the flexible upper joint and the flexible lower joint can be bent in any direction.
In the utility model, the flexible pressure-bearing body is of a tubular structure, the two ends of the flexible pressure-bearing body are respectively provided with the annular sealing grooves, the annular sealing grooves are internally provided with the O-shaped sealing rings, and the sealing grooves arranged at the two ends of the flexible pressure-bearing body are respectively sealed with the flexible upper joint and the flexible lower joint through the O-shaped sealing rings, so that a certain pressure-bearing effect can be achieved.
The flexible structure assembly with the dry flexible structure is adopted, so that the problems of poor safety, complex maintenance, long period, high cost and the like of the oiling flexible short section are solved; the insulating housing is made of the heat-treated PEEK material, so that the insulating housing is not easy to deform at high temperature and high pressure, the insulating property is better, and the well logging information effect is better.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is a partially enlarged view of an upper portion of fig. 2.
Fig. 4 is an enlarged view of a portion of the lower part of fig. 2.
Fig. 5 is an enlarged view of a portion a of fig. 4.
Wherein, 1, isolating the structural component; 2. a flexible structural component; 3. a filling-proof pressure-bearing body; 4. a pressure-bearing block; 5. a needle inserting seat; 6. a threaded sleeve; 7. isolating the upper joint; 8. an insulating pressure-bearing body; 9. an insulating housing; 10. pressing the cap; 11. isolating the lower joint; 12. a flexible upper joint; 13. a flexible pressure-bearing body; 14. a flexible lower joint; 15. an outer spherical structure; 16. an inner spherical structure; 17. a compression member; 18. an annular seal groove; 19. an O-shaped sealing ring; 20. an insulating housing assembly; 21. an electrical cable.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
The utility model provides a novel keep apart flexible two-way short section logging instrument that prevents irritating, belongs to oil logging instrument equipment technical field, including isolation structure subassembly 1 and flexible structure subassembly 2, all be equipped with in isolation structure subassembly 1 and the flexible structure subassembly 2 and prevent irritating pressure body 3, prevent irritating pressure body 3 including bearing block 4, be equipped with needle bar seat 5 in the bearing block 4, prevent irritating pressure body 3 and fix respectively in isolation structure subassembly 1 and flexible structure subassembly 2 through helicitic texture.
The embodiment is the most basic implementation manner, referring to fig. 1 and 2, taking the common use direction of the logging tool as an example, the isolation structure assembly 1 is located above the flexible structure assembly 2, the isolation structure assembly 1 is used for insulation at an upper interface, the flexible structure assembly 2 is used for ensuring that the logging tool can bend at a certain angle in any direction, the isolation structure assembly 1 and the flexible structure assembly 2 are both provided with the anti-grouting pressure body 3, when the logging tool is damaged, the anti-grouting pressure body 3 at the upper end can prevent grout from entering a connecting instrument at the upper end of the isolation pup joint of the logging tool, so as to protect an instrument at the upper end, and the anti-grouting pressure body 3 at the lower end can prevent grout from entering the connecting instrument at the lower end of the flexible pup joint, so as to protect an instrument at the lower end. The anti-filling pressure-bearing body 3 is skillfully designed into a structure that an inserting needle seat 5 is arranged in a pressure-bearing block 4, and the inserting needle seat 5 is used for connecting and isolating a cable 21 which is communicated with an inner hole of the flexible short section.
Example 2
The utility model provides a novel keep apart flexible two-way short section logging instrument that prevents irritating, belongs to oil logging instrument equipment technical field, including isolation structure subassembly 1 and flexible structure subassembly 2, all be equipped with in isolation structure subassembly 1 and the flexible structure subassembly 2 and prevent irritating pressure body 3, prevent irritating pressure body 3 including bearing block 4, be equipped with needle bar seat 5 in the bearing block 4, prevent irritating pressure body 3 and fix respectively in isolation structure subassembly 1 and flexible structure subassembly 2 through helicitic texture.
In this embodiment, a further improvement is provided in embodiment 1, and referring to fig. 2, the outer side of the pressure-bearing block 4 is provided with a thread, threaded sleeves 6 are provided in the isolation structure assembly 1 and the flexible structure assembly 2, and the anti-perfusion pressure-bearing body 3 is respectively fixed to the isolation structure assembly 1 and the flexible structure assembly 2 through the threaded sleeves 6.
Example 3
This embodiment is different from embodiments 1-2 in that the insulating structural member 1 and the flexible structural member 2 are of an integral structure.
Example 4
Compared with the embodiments 1 to 3, the difference of this embodiment is that, referring to fig. 1 to 3, the isolating structure assembly 1 further includes an isolating upper joint 7, an insulating pressure-bearing body 8 and an insulating housing 9, the lower end of the isolating upper joint 7 penetrates through the insulating pressure-bearing body 8 and is tightly fitted with the insulating pressure-bearing body 8, and the insulating pressure-bearing body 8 is arranged at the lower end of the isolating upper joint 7 and inside the insulating housing 9. The insulating pressure-bearing body 8 plays the role of insulation and sealing pressure-bearing.
Example 5
This embodiment is different from embodiments 1 to 4 in that, referring to fig. 3, the isolating upper joint 7 and the insulating pressure-bearing body 8 are pressed by a pressing cap 10.
Example 6
This embodiment is different from embodiments 1-5 in that, referring to fig. 3, the insulation housing 9 of the insulation structure assembly 1 is further provided with an insulation lower joint 11 inside, and the insulation lower joint 11 is connected with the flexible structure assembly 2.
Example 7
Compared with the embodiments 1 to 6, the present embodiment is different from the embodiments 1 to 6 in that, referring to fig. 1, 2 and 4, the flexible structure assembly 2 further includes a flexible upper joint 12, a flexible pressure-bearing body 13 and a flexible lower joint 14, the flexible pressure-bearing body 13 is disposed in inner bores of the flexible upper joint 12 and the flexible lower joint 14, and two sides of the flexible pressure-bearing body 13 are respectively connected to the flexible upper joint 12 and the flexible lower joint 14.
Example 8
Compared with the embodiments 1-7, the present embodiment is different in that the lower end of the flexible upper joint 12 is an outer spherical structure 15, the upper end of the flexible lower joint 14 is an inner spherical structure 16, and a pressing member 17 is arranged between the outer spherical structure 15 and the inner spherical structure 16.
This compress tightly the piece 17 of the preferred half-and-half structure of piece 17, refer to figure 4, compress tightly the external diameter department design step screw thread of piece 17, the hole design is the concave sphere of step, compress tightly a 17 and install in the outer sphere upside of flexible upper joint 12, the design of flexible upper joint 12 lower extreme outside is convex sphere and the concave sphere of flexible lower joint 14 upper end inboard is connected reuse and should compress tightly a 17 and be connected promptly for guarantee that this logging tool's flexible upper joint 12, flexible lower joint 14 can have the bending of certain angle in the arbitrary direction.
Example 9
Compared with the embodiments 1 to 8, the present embodiment is different in that, referring to fig. 5, the flexible pressure-bearing body 13 is a tubular structure, annular seal grooves 18 are provided at both ends of the flexible pressure-bearing body 13, and an O-shaped seal ring 19 is provided in the annular seal groove 18.
Example 10
Compared with the embodiments 1 to 9, the present embodiment is different in that the flexible structure assembly 2 is a dry flexible structure, that is, the flexible structure is not filled with any liquid to realize the flexible structure function; the insulating shell 9 is made of PEEK materials after heat treatment.
Claims (10)
1. The utility model provides a novel keep apart flexible two-way short section logging tool of preventing irritating which characterized in that: including isolation structure subassembly (1) and flexible structure subassembly (2), all be equipped with in isolation structure subassembly (1) and the flexible structure subassembly (2) and prevent irritating pressure body (3), prevent irritating pressure body (3) including pressure-bearing block (4), be equipped with in pressure-bearing block (4) and insert needle seat (5), prevent irritating pressure body (3) and fix respectively in isolation structure subassembly (1) and flexible structure subassembly (2) through helicitic texture.
2. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 1, wherein: the outer side of the bearing block (4) is provided with threads, threaded sleeves (6) are arranged in the isolation structure assembly (1) and the flexible structure assembly (2), and the anti-irrigation bearing body (3) is fixedly connected with the isolation structure assembly (1) and the flexible structure assembly (2) through the threaded sleeves (6) respectively.
3. The novel isolating flexible bidirectional anti-flow pup joint logging tool according to claim 1 or 2, characterized in that: the isolation structure component (1) and the flexible structure component (2) are of an integrated structure.
4. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 3, wherein: the isolation structure assembly (1) further comprises an isolation upper joint (7), an insulation pressure-bearing body (8) and an insulation shell (9), the lower end of the isolation upper joint (7) penetrates through the insulation pressure-bearing body (8) and is tightly matched with the insulation pressure-bearing body (8), and the insulation pressure-bearing body (8) is arranged at the lower end of the isolation upper joint (7) and is arranged on the inner side of the insulation shell (9).
5. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 4, wherein: the isolation upper joint (7) and the insulation pressure-bearing body (8) are pressed tightly through a pressure cap (10).
6. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 5, wherein: the insulation structure is characterized in that an isolation lower joint (11) is further arranged on the inner side of an insulation shell (9) of the isolation structure component (1), and the isolation lower joint (11) is connected with the flexible structure component (2).
7. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 6, wherein: the flexible structure assembly (2) further comprises a flexible upper joint (12), a flexible pressure-bearing body (13) and a flexible lower joint (14), the flexible pressure-bearing body (13) is arranged in inner holes of the flexible upper joint (12) and the flexible lower joint (14), and the flexible upper joint (12) and the flexible lower joint (14) are respectively connected to two sides of the flexible pressure-bearing body (13).
8. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 7, wherein: the lower end of the flexible upper joint (12) is of an outer spherical structure (15), the upper end of the flexible lower joint (14) is of an inner spherical structure (16), and a pressing piece (17) is arranged between the outer spherical structure (15) and the inner spherical structure (16).
9. The novel isolated flexible bidirectional anti-flow pup logging tool of claim 8, wherein: the flexible pressure-bearing body (13) is of a tubular structure, two ends of the flexible pressure-bearing body (13) are respectively provided with an annular sealing groove (18), and an O-shaped sealing ring (19) is arranged in each annular sealing groove (18).
10. The novel isolating flexible bidirectional anti-flowing short section logging tool as claimed in claim 9, characterized in that: the flexible structure component (2) is a dry flexible structure; the insulating shell (9) is an insulating shell (9) made of a heat-treated PEEK material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122710015.5U CN216446907U (en) | 2021-11-08 | 2021-11-08 | Novel keep apart flexible two-way short section logging tool that prevents irritating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122710015.5U CN216446907U (en) | 2021-11-08 | 2021-11-08 | Novel keep apart flexible two-way short section logging tool that prevents irritating |
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| Publication Number | Publication Date |
|---|---|
| CN216446907U true CN216446907U (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122710015.5U Active CN216446907U (en) | 2021-11-08 | 2021-11-08 | Novel keep apart flexible two-way short section logging tool that prevents irritating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216446907U (en) |
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2021
- 2021-11-08 CN CN202122710015.5U patent/CN216446907U/en active Active
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