CN205117238U - Drill collar is hung to no magnetcisuspension - Google Patents
Drill collar is hung to no magnetcisuspension Download PDFInfo
- Publication number
- CN205117238U CN205117238U CN201520929304.6U CN201520929304U CN205117238U CN 205117238 U CN205117238 U CN 205117238U CN 201520929304 U CN201520929304 U CN 201520929304U CN 205117238 U CN205117238 U CN 205117238U
- Authority
- CN
- China
- Prior art keywords
- instrument
- magnetcisuspension
- drill collar
- nipple joint
- distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
Drill collar is hung to no magnetcisuspension, including a whole nipple joint, whole nipple joint has and flows a section of thick bamboo assembly with the instrument, visits the pipe and visit the pipe and go up the centralizer assorted internal diameter that sets up, and the hole of whole nipple joint has a plurality of step holes, and topmost hole assembly instrument flows a section of thick bamboo assembly, and the pipe is visited to middle step hole dress, and bottom whole nipple joint is used for keeping apart the instrument and the distance that has the magnetism drilling tool. The utility model discloses a drill collar is hung to no magnetcisuspension has made up original triplex nipple joint into a whole in other words, has got rid of middle screw connection link, and the downhole safety of the instrument of improvement under also guaranteeing effectual isolation instrument simultaneously and having the circumstances of the distance of magnetism drilling tool, has shortened the distance between instrument and the drill bit greatly, has improved instrument measuring's precision.
Description
Technical field
The utility model relates to drilling tool technical field, is specifically related to a kind of without magnetcisuspension extension drill collar.
Background technology
Hang drill collar without magnetcisuspension and be mainly used in the direction measuring well in directional well creeps into, simultaneously in orientation process for a non-magnetic environment created by Magnetic Measurement instrument, the data that guarantee Magnetic Measurement instrument measures are true geomagnetic field information.Non magnetic drill collar generally comprises the body of rod, one end of the body of rod has male joint, the other end has female joint, in use procedure, described non magnetic drill collar is contacted with the borehole wall by its body of rod, current hangs drill collar without magnetcisuspension, such as existing LWD-650 non magnetic drill collar and LWD-1200 non magnetic drill collar structure as shown in Figure 1: the pipe nipple of outside be made up of three parts: the hanging pup joint 1 of dress instrument stream cylinder assembly, fill the special short non-magnetic drilling tool 2 of inserting tube and the conventional non magnetic drill collar 3 of isolation distance.Because this three part is all by spiral marking connection, therefore be vulnerable area in drilling tool drill string, threaded portion fracture can be occurred and open button phenomenon, cause down-hole accident, cause instrument damage and Luo Jing, more expensive owing to hanging drill collar instrument price without magnetcisuspension, so very large economic loss can be caused.
Utility model content
The utility model provides a kind of hangs drill collar without magnetcisuspension, easily ruptures and the problem opening button with the threaded portion between the segmented short circuit solving prior art existence.
The utility model solves the technical scheme that its technical problem adopts:
A kind of without magnetcisuspension extension drill collar, comprise an overall pipe nipple, overall pipe nipple has the internal diameter matched with the centralizer that arranges on instrument stream cylinder assembly, inserting tube and inserting tube, the endoporus of overall pipe nipple has multiple stepped hole, uppermost endoporus assembling instrument stream cylinder assembly, intermediate step hole dress inserting tube, overall pipe nipple is bottom for isolating instrument and the distance having magnetic drilling tool.
Of the present utility model without magnetcisuspension extension drill collar, three original part pipe nipples are equivalent to be combined into an entirety, eliminate middle spiral marking connection link, the downhole safety of the instrument greatly improved, also when guarantee is effectively isolated instrument and is had the distance of magnetic drilling tool simultaneously, shorten the distance between instrument and drill bit, improve the precision of apparatus measures.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation hanging drill collar in prior art without magnetcisuspension;
Fig. 2 is structural representation of the present utility model.
1 hanging pup joint, 2 special short non-magnetic drilling tools, 3 conventional non magnetic drill collars, 4 overall pipe nipples, 5 instrument stream cylinder assemblies, 6 inserting tubes, 7 centralizers in figure.
Detailed description of the invention
As shown in Figure 2, a kind of without magnetcisuspension extension drill collar, comprise an overall pipe nipple 4, overall pipe nipple 4 has the internal diameter matched with the centralizer 7 that arranges on instrument stream cylinder assembly 5, inserting tube 6 and inserting tube, the endoporus of overall pipe nipple 4 has multiple stepped hole, uppermost endoporus assembling instrument stream cylinder assembly 5, intermediate step hole dress inserting tube 6, overall pipe nipple is bottom for isolating instrument and the distance having magnetic drilling tool.
Of the present utility model without magnetcisuspension extension drill collar, three original part pipe nipples are equivalent to be combined into an entirety, eliminate middle spiral marking connection link, the downhole safety of the instrument greatly improved, also when guarantee is effectively isolated instrument and is had the distance of magnetic drilling tool simultaneously, shorten the distance between instrument and drill bit, improve the precision of apparatus measures.
Claims (1)
1. hang drill collar without magnetcisuspension for one kind, it is characterized in that comprising an overall pipe nipple, overall pipe nipple has the internal diameter matched with the centralizer that arranges on instrument stream cylinder assembly, inserting tube and inserting tube, the endoporus of overall pipe nipple has multiple stepped hole, uppermost endoporus assembling instrument stream cylinder assembly, intermediate step hole dress inserting tube, overall pipe nipple is bottom for isolating instrument and the distance having magnetic drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929304.6U CN205117238U (en) | 2015-11-20 | 2015-11-20 | Drill collar is hung to no magnetcisuspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520929304.6U CN205117238U (en) | 2015-11-20 | 2015-11-20 | Drill collar is hung to no magnetcisuspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117238U true CN205117238U (en) | 2016-03-30 |
Family
ID=55572857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520929304.6U Expired - Fee Related CN205117238U (en) | 2015-11-20 | 2015-11-20 | Drill collar is hung to no magnetcisuspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700818A (en) * | 2019-11-27 | 2020-01-17 | 成都多贝石油工程技术有限公司 | Underground slidable rotary valve pulser |
| CN112780260A (en) * | 2019-11-04 | 2021-05-11 | 航天科工惯性技术有限公司 | Assembly and method for installing a suspended probe |
-
2015
- 2015-11-20 CN CN201520929304.6U patent/CN205117238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780260A (en) * | 2019-11-04 | 2021-05-11 | 航天科工惯性技术有限公司 | Assembly and method for installing a suspended probe |
| CN112780260B (en) * | 2019-11-04 | 2022-11-11 | 航天科工惯性技术有限公司 | Assembly and method for installing a suspended probe |
| CN110700818A (en) * | 2019-11-27 | 2020-01-17 | 成都多贝石油工程技术有限公司 | Underground slidable rotary valve pulser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20211120 |