CN201334877Y - Slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus - Google Patents
Slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus Download PDFInfo
- Publication number
- CN201334877Y CN201334877Y CNU2009200179675U CN200920017967U CN201334877Y CN 201334877 Y CN201334877 Y CN 201334877Y CN U2009200179675 U CNU2009200179675 U CN U2009200179675U CN 200920017967 U CN200920017967 U CN 200920017967U CN 201334877 Y CN201334877 Y CN 201334877Y
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- China
- Prior art keywords
- tube
- searching
- slurry
- sealing ring
- plug
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus, and comprises a screw thread, a locker and a vibration damper connected with the framework of the searching tube, as well as a laminated spring, an internal connecting cylinder, a seal ring between the internal cylinder and an external cylinder, an external pressure-resistance pipe nipple, a threading conduit, a leading wire assembly of an insulating tube, a bottom sub seal ring, a bottom sub, a reverse screw thread and a jackscrew tube. Through the leading wire assembly of insulating tube, the bottom sub seal ring and the bottom sub, an original wire splice of power supply and signal is transmitted through by dividing into an external part and an internal part. When the circuit is connected by the leading wire assembly of the insulating tube, the leaked slurry is obstructed within the jackscrew tube by the bottom sub, the bottom sub seal ring and the seal ring between the internal and the external cylinder. As a result, the problem that when the slurry, which is between the searching tube and the impulse signal generator, leaks due to certain reason and can't reach the device inside of apparatus can be avoided, and the technical defect of the prior searching tube design can be overcome. The utility model is effective in preventing the slurry from getting into the searching tube and damaging the searching tube, and is particularly suitable for the searching tube works in the slurry with pressure.
Description
Technical field
The utility model relates to a kind of instrument of measuring well track and geological prospecting data, and the downhole wireless steering tool inserting tube that particularly a kind of oil drilling, underground survey operation etc. are used on straight well, directional well, horizontal well is prevented mud device.
Background technology
The measurement well track that on straight wells such as oil drilling, underground work, directional well, horizontal well, uses at present and the inserting tube of geological prospecting data, because its its internal electric source under normal situation about using is to be connected output data by outside resistance to compression pipe nipple with outside aviation plug with signal link, when leakage is rushed down in the sealing ring generation between inner/outer tube, high-pressure slurry can be along outside resistance to compression pipe nipple, process and inserting tube skeleton thread, directly arrive instrument internal, cause whole inserting tube to damage even scrap.Repeatedly accident has taken place, has had bigger potential safety hazard.
Summary of the invention
The purpose of this utility model provides the anti-mud device of a kind of downhole wireless steering tool inserting tube, prevents that mud from producing arrival instrument internal when rushing down leakage, overcome the defective that exists in original inserting tube design.
The purpose of this utility model is achieved in that this device comprises and inserting tube skeleton thread, locker, damper and spring lamination, interior connecting cylinder, inner/outer tube between sealing ring, outside resistance to compression pipe nipple, threading conduit, insulation tube lead-in wire assembly, plug sealing ring, plug, oppositely screw thread, jackscrew pipe are formed.Adopt insulation tube lead-in wire assembly, plug sealing ring, plug, former power supply and signal link are divided into about two parts pass through, insulation tube lead-in wire assembly is communicated with circuit, and the mud that rushes down leakage is kept off in the jackscrew pipe by sealing ring between plug, plug sealing ring, inner/outer tube.With inserting tube skeleton thread be right-hand thread, shackle for convenience and locker can effectively be carried out, and have ad hocly counted reverse screw thread.Rush down the leakage accident in case mud takes place, only need dismantle reverse screw thread and take out plug, change plug, plug sealing ring, insulation tube lead-in wire assembly, soldered wires gets final product.Can not cause whole inserting tube to damage and scrap, make loss drop to minimum point.
The utility model adopt to increase the multiple spot sealing, and it is reliable that resistance to compression is effective, circuit connects insulation, protects effectively, and installation, maintenance is easy.
Description of drawings
Fig. 1 is the utility model structural representation.
Shown in Figure 1,1 be and inserting tube skeleton thread, 2 for locker, 3 for damper and spring lamination, 4 for interior connecting cylinder, 5 for sealing ring between inner/outer tube, 6 for outside resistance to compression pipe nipple, 7 for the threading conduit, 8 for insulation tube lead-in wire assembly, 9 for the plug sealing ring, 10 for plug, 11 for reverse screw thread, 12 be the jackscrew pipe.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described: this device comprises and inserting tube skeleton thread (1), locker (2), damper and spring lamination (3), interior connecting cylinder (4), inner/outer tube between sealing ring (5), outside resistance to compression pipe nipple (6), threading conduit (7), insulation tube lead-in wire assembly (8), plug sealing ring (9), plug (10), oppositely screw thread (11), jackscrew pipe (12) are formed.Adopt insulation tube lead-in wire assembly (8), plug sealing ring (9), plug (10), former power supply and signal link are divided into about two parts pass through.Insulation tube lead-in wire assembly (8) is communicated with circuit, and the mud that rushes down leakage is kept off in the jackscrew pipe (12) by sealing ring (5) between plug (10), plug sealing ring (9), inner/outer tube.Assembling with interior connecting cylinder (4) in order with inserting tube skeleton thread (1), locker (2), damper and spring lamination (3), sealing ring between first-class inner/outer tube (5) is inserted in outside resistance to compression pipe nipple (6) to it.Again former connecting line spreading, through passing threading conduit (7) with inserting tube skeleton thread (1).Outside resistance to compression pipe nipple (6) and inserting tube resistance to compression tube are connected.Connecting line is stayed enough as required, the end of a thread is welded to the inboard of insulation tube lead-in wire assembly (8) respectively.Stay the line in insulation tube lead-in wire assembly (8) outside enough length also to weld simultaneously.Load onto plug sealing ring (9), plug (10) the first-class jackscrew pipe of interior connecting cylinder (4) (12) of packing into, locker (2) locking simultaneously gets final product.With inserting tube skeleton thread (1) be right-hand thread, shackle for convenience and locker (2) can effectively be carried out the ad hoc reverse screw thread (11) of having counted.Rush down the leakage accident in case mud takes place, only need dismantle reverse screw thread (11) and take out plug (10), change plug (10), plug sealing ring (9) insulation tube lead-in wire assembly (8), soldered wires gets final product.Can not cause whole inserting tube to damage and scrap, make loss drop to minimum point.
The utility model is that a kind of can effectively preventing caused the device that damages inserting tube because of mud enters inserting tube, is particularly suitable for the inserting tube of working in the mud of band pressure.
Claims (3)
1, a kind of downhole wireless steering tool inserting tube is prevented mud device, by with inserting tube skeleton thread (1), locker (2), damper and spring lamination (3), interior connecting cylinder (4), sealing ring between inner/outer tube (5), outside resistance to compression pipe nipple (6), threading conduit (7), insulation tube lead-in wire assembly (8), plug sealing ring (9), plug (10), reverse screw thread (11), jackscrew pipe (12) is formed, it is characterized in that insulation tube lead-in wire assembly (8), plug sealing ring (9), plug (10), former power supply and signal link are divided into about two parts to be passed through, insulation tube lead-in wire assembly (8) is communicated with circuit, and the mud that rushes down leakage is by plug (10), plug sealing ring (9), sealing ring between inner/outer tube (5) retaining is in the jackscrew pipe (12).
2, the anti-mud device of downhole wireless steering tool inserting tube according to claim 1, it is characterized in that assembling with interior connecting cylinder (4) in order with inserting tube skeleton thread (1), locker (2), damper and spring lamination (3), sealing ring between first-class inner/outer tube (5), it is inserted in outside resistance to compression pipe nipple (6), former connecting line spreading, through passing threading conduit (7) with inserting tube skeleton thread (1).
3, the anti-mud device of downhole wireless steering tool inserting tube according to claim 1, it is characterized in that with inserting tube skeleton thread (1) be right-hand thread, the other end adopts reverse screw thread (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200179675U CN201334877Y (en) | 2009-01-11 | 2009-01-11 | Slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200179675U CN201334877Y (en) | 2009-01-11 | 2009-01-11 | Slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334877Y true CN201334877Y (en) | 2009-10-28 |
Family
ID=41286527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200179675U Expired - Fee Related CN201334877Y (en) | 2009-01-11 | 2009-01-11 | Slurry-proof device for searching tube of underground wireless MWD (measurement while drilling) measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334877Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375158A (en) * | 2011-11-02 | 2012-03-14 | 长江三峡勘测研究院有限公司（武汉） | Multifunctional protector of underground probe of hole drilling television image maker |
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
-
2009
- 2009-01-11 CN CNU2009200179675U patent/CN201334877Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375158A (en) * | 2011-11-02 | 2012-03-14 | 长江三峡勘测研究院有限公司（武汉） | Multifunctional protector of underground probe of hole drilling television image maker |
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20140111 |