CN201786352U - Drop-proof device for oil well logger - Google Patents
Drop-proof device for oil well logger Download PDFInfo
- Publication number
- CN201786352U CN201786352U CN2010205475926U CN201020547592U CN201786352U CN 201786352 U CN201786352 U CN 201786352U CN 2010205475926 U CN2010205475926 U CN 2010205475926U CN 201020547592 U CN201020547592 U CN 201020547592U CN 201786352 U CN201786352 U CN 201786352U
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- China
- Prior art keywords
- drop
- logging instrument
- oil well
- well logger
- logger
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- Expired - Fee Related
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Abstract
The utility model relates to a drop-proof device for an oil well logger, which comprises an anti-blowout choke plug and a well logger rope socket, wherein a drop-proof assembly is connected to the lower end of the anti-blowout choke plug via a joint. The drop-proof assembly comprises a sleeve, which has sequentially arranged therein a compressed spring, a spring seat and a shrinkable ferrule. Clamp teeth matching with the shrinkable ferrule are arranged on the top end of the well logger rope socket. The drop-proof device has the functions of preventing breakage of a wire rope and dropping off of a well logger, thereby ensuring the smooth oil well testing work. Even if breakage of wire rope or other mechanical failure occurs, the well logger may not drop off, so that the well logger can not be damaged. And, potential safety hazard can be eliminated, and working efficiency for well testing can be improved.
Description
Technical field
The utility model belongs to oil well logging instrument technical field of auxiliary facilities, is the oil well logging instrument anti-drop device that a kind of suitable oil well mouth uses.
Background technology
In known oilfield measuring technology, normally adopt the well logging steel wire penetrating blowout prevention plug be connected with logging instrument and oil well lubricator to stretch into the down-hole and carry out the oil well test operation.Test jobs finishes or when testing repeatedly, needs the rotation by aboveground winch drum, and logger is promoted to well head.In promoting the process of logging instrument,, forget that the check and correction tachometer makes zero or other mechanical breakdown etc. in case the malfunctioning or winch misoperation of test tachometer occurs, because the lower surface of blowout prevention plug is a plane structure, rigid collision takes place in the rope socket of logging instrument and blowout prevention plug easily, causes wire rope to break and takes off, and logger will be shed to the shaft bottom, meet well, can also salvage, but bother very much when salvaging, waste time and energy, if meet the oil well that has silt, logger just is difficult to salvage.Moreover the general electronics logger that uses in oil field is worth all in tens thousand of units at present, in case come off, causes the damage and the serious economy loss of logger.
The utility model content
The purpose of this utility model provides a kind of can prevent wire rope effectively disconnected and takes off and the coming off of logging instrument, and oil well logging instrument anti-drop device esy to use, safe and reliable.
Realize that the technical scheme that the purpose of this utility model is taked is: this device comprises blowout prevention plug and logging instrument rope socket, wherein, lower end at the blowout prevention plug is connected with anti-drop assembly by joint, this anti-drop assembly has a sleeve, the compression spring, spring base and the breathing cutting ferrule that connect successively are housed in the sleeve, and the upper end of logging instrument rope socket is provided with the card tooth that cooperates with the breathing cutting ferrule.
Described breathing cutting ferrule is a sleeve-like configuration, and circumferential wall is provided with at least more than one breathing open slot.
Be respectively equipped with removal hole on described sleeve and the breathing cutting ferrule.
Be equipped with the through hole that is used to dismantle on described joint and the logging instrument rope socket.
According to the oil well logging instrument anti-drop device that such scheme is made, have and prevent wire cable rupture and prevent from the dual-use function that logger comes off from not only can prevent coming off of logger effectively, guarantee the normal operation of oil well test operation.Wire rope is disconnected to be taken off or during other mechanical breakdown, can guarantee that still logger can not come off even if occur, and the major accident that can not cause logger to damage has been eliminated potential safety hazard thus, has improved logging operation efficient greatly.This device has simple in structure, and is easy to use, and cost is low, reliable operation, installation, convenient disassembly, advantage such as practical.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to Fig. 1, oil well logging instrument anti-drop device of the present utility model, comprise blowout prevention plug 1, logging instrument rope socket 7 and anti-drop assembly, wherein, anti-drop assembly is by joint 2, sleeve 6, compression spring 3, spring base 4 and breathing cutting ferrule 5 are formed, joint is connected with sleeve 6 with blowout prevention plug 1 respectively by screw thread at two ends about in the of 2, compression spring 3, spring base 4 and breathing cutting ferrule 5 are installed in the sleeve 6 successively, breathing cutting ferrule 5 is a cylinder-like structure, the bottom has at least more than one breathing open slot 5-1, be used for the clamping of logging instrument rope socket, the upper end of breathing cutting ferrule 5 is connected with spring base 4.The upper end of logging instrument rope socket 7 is the taper bolt shape, and its excircle position is laid with several card tooth 7-1 that matches with 5 clampings of breathing cutting ferrule.Axis part at blowout prevention plug 1, joint 2 and logging instrument rope socket 7 is equipped with the through hole 8 that is used to wear the well logging wire rope.Be respectively equipped with the removal hole (not shown) on sleeve 6 and the breathing cutting ferrule 5, be used for the dismounting of logging instrument rope socket 7.Be equipped with the through hole that is used to dismantle on joint 2 and the logging instrument rope socket 7, be convenient to the assembly and disassembly of oil well logging instrument anti-drop device.
Operating principle: use this anti-drop device to carry out in the logging operation process, behind the startup winch, the through hole on steel wire penetrating blowout prevention plug 1, joint 2 and the logging instrument rope socket 7 is sent the oil well logging instrument into the down-hole.When hoisting the oil well logging instrument, when rising, the oil well logging instrument rises to well head, the inertia that is risen by the oil well logging instrument puts in the breathing cutting ferrule 5 upper end of logging instrument rope socket 7, and makes the power of being used to of oil well logging instrument rising obtain buffering by the effect of compression spring 3, thereby can avoid the fracture of wire rope.After stopping to hoist because card tooth 7-1 and the breathing cutting ferrule 5 of logging instrument rope socket 7 upper ends be connected together, even thereby wire rope take place to break and take off, logging instrument can not drop yet.After finishing well logging work, adopt wedge tool to insert in the removal hole on sleeve 6 and the breathing cutting ferrule 5, breathing cutting ferrule 5 is moved on relatively, can take off logging instrument rope socket 7.
Claims (4)
1. oil well logging instrument anti-drop device, comprise blowout prevention plug and logging instrument rope socket, it is characterized in that: the lower end at the blowout prevention plug is connected with anti-drop assembly by joint, this anti-drop assembly has a sleeve, the compression spring, spring base and the breathing cutting ferrule that connect successively are housed in the sleeve, and the upper end of logging instrument rope socket is provided with the card tooth that cooperates with the breathing cutting ferrule.
2. oil well logging instrument anti-drop device according to claim 1 is characterized in that: described breathing cutting ferrule is a sleeve-like configuration, and circumferential wall is provided with at least more than one breathing open slot.
3. oil well logging instrument anti-drop device according to claim 1 is characterized in that: be respectively equipped with removal hole on described sleeve and the breathing cutting ferrule.
4. oil well logging instrument anti-drop device according to claim 1 is characterized in that: be equipped with the through hole that is used to dismantle on described joint and the logging instrument rope socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205475926U CN201786352U (en) | 2010-09-29 | 2010-09-29 | Drop-proof device for oil well logger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205475926U CN201786352U (en) | 2010-09-29 | 2010-09-29 | Drop-proof device for oil well logger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786352U true CN201786352U (en) | 2011-04-06 |
Family
ID=43818320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205475926U Expired - Fee Related CN201786352U (en) | 2010-09-29 | 2010-09-29 | Drop-proof device for oil well logger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025967A (en) * | 2018-08-31 | 2018-12-18 | 黑龙江省易爱蒽新材料科技发展有限公司 | A kind of portable, anti-lost, fast de-, blowout prevention pipe device |
| CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
-
2010
- 2010-09-29 CN CN2010205475926U patent/CN201786352U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025967A (en) * | 2018-08-31 | 2018-12-18 | 黑龙江省易爱蒽新材料科技发展有限公司 | A kind of portable, anti-lost, fast de-, blowout prevention pipe device |
| CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
| CN110439493B (en) * | 2019-09-20 | 2024-07-09 | 成都里尔斯石油科技有限公司 | Anti-drop sealing anti-spray head and anti-spray device |
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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: 20110406 Termination date: 20110929 |