CN102400671A - Flexible connection device of logging-while-drilling instrument - Google Patents
Flexible connection device of logging-while-drilling instrument Download PDFInfo
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- CN102400671A CN102400671A CN2010102759884A CN201010275988A CN102400671A CN 102400671 A CN102400671 A CN 102400671A CN 2010102759884 A CN2010102759884 A CN 2010102759884A CN 201010275988 A CN201010275988 A CN 201010275988A CN 102400671 A CN102400671 A CN 102400671A
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- flexible
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- fixed block
- cable
- connector shell
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Abstract
The invention relates to a flexible connection device of a logging-while-drilling instrument. The flexible connection device consists of a cable fixing box, a cable, a limiting sleeve, a fixed block, a flexible telescopic rod, a centralizing joint, a flexible connector shell and a quick plug, wherein the centralizing joint is positioned in a central hole of a drilling rod, and the outer diameter of the centralizing joint is matched with that of the central hole of the drilling rod; the flexible connector shell is positioned in the central hole of the drilling rod, and the lower end is fixed on the centralizing joint; the cable fixing box is positioned at the inner upper end of the flexible connector shell; a pressing plate is arranged on the cable fixing box; the upper end of the cable is fixed by using the pressing plate; the limiting sleeve is positioned inside the flexible connector shell and outside the central hole of the centralizing joint and connected with an upper end face of the fixed block; a lower end face of the fixed block is connected with the flexible telescopic rod; the flexible telescopic rod passes through the central hole of the centralizing joint and is connected with the quick plug; and the lower end of the cable passes through the limiting sleeve, the fixed block and the central hole of the flexible telescopic rod and is connected with the quick plug. By adoption of the flexible connection device, data transmission and up-down power supplying can be realized. With near-term well-site actual operation, the flexible connection device is extremely low in fault rate and good in effect.
Description
Technical field
The present invention relates to a kind of well logging during instrument flexible connecting device.
Background technology
Novel well logging during system; Because the parameter pipe nipple (the parameter pipe nipple is exactly the instrumented drilling rod of centre bore) that articulates is many; And exactly each parameter end joint is linked together with the linkage that bores instrument; Transmission data and power supply, therefore the linkage with the brill instrument is an important component part very important in the whole system in whole system.Because the working environment very severe of down-hole, HTHP, the raised platform around a well operation is also very complicated and have a lot of Unpredictability problems, and this all requires to have the reliability, simplicity of connection, good human-machine operation process with the linkage that bores instrument.And problems such as existing linkage exists that structure is too complicated, cost is too high, execute-in-place is inconvenient, fragile, maintaining difficulty.
Existing rigid telescopic rod connecting device, wherein the solidus box is used for fixing the cable of rigid telescopic rod connecting device, prevents to come off because of vibration.Stop collar is used to limit the flexible length of rigid telescopic bar, prevents that cable from bearing pulling force.Setting upright joint has four back-up blocks to be supported on the inwall of drilling rod centre bore, and the crust of the device that is rigidly connected radially is fixed in the centre bore of drilling rod, avoids it in use acutely to rock.Coupling nut and sealing plug are used for two instrument butt joints.
The convertible length of this design, good to the drilling rod adaptivity of different length, can compensate axial error to stacks; Because the shell of rigid telescopic bar is a rigid material, can not be crooked, so can't compensate horizontal beat to stacks; Operation is difficult for butt joint in the well site; Sealing plug is difficult for pegging graft, and the operating time is longer, and damages the rigid telescopic bar easily.
Summary of the invention
The purpose of this invention is to provide a kind of well logging during instrument flexible connecting device that instrument is used in quite abominable, complex environment; It is simple in structure, with low cost, application life is longer relatively; Connect fast, reliably; Be convenient to execute-in-place and maintaining, can solve the transmission and the power supply of well logging during signal effectively.
Well logging during instrument flexible connecting device of the present invention by solidus box, cable, stop collar, fixed block, flexible expansion link, set upright joint, flexible connector shell and quick plug and constitute; Set upright joint and be arranged in the drilling rod centre bore, external diameter and drilling rod centre bore are complementary, and the flexible connector shell is arranged in the drilling rod centre bore; The lower end is fixed on to be set upright on the joint, and the solidus box is positioned at flexible connector shell upper end, and the solidus box is provided with a pressing plate; The cable upper end is fixed by pressing plate, and stop collar is positioned at the flexible connector shell, sets upright outside the joint centre bore; Be connected with the fixed block upper surface; The fixed block lower surface is connected with flexible expansion link, and flexible expansion link passes to be set upright the joint centre bore and be connected with quick plug, and the cable lower end is passed stop collar, fixed block, flexible expansion link centre bore and is connected with quick plug.
Flexible expansion link is to be made by the elastic wire organization level, has both had certain rigid, again can be crooked, can also protect inner cable.
Well logging during instrument flexible connecting device of the present invention; There is a pressing plate to be used for fixing the cable of flexible connecting device on the solidus box; Stop collar is installed on the fixed block, is used to limit the flexible length of flexible expansion link, and the end face that stop collar can be set upright joint when flexible expansion link is drawn to certain-length blocks; Can not continue to stretch out, prevent that cable from bearing pulling force; Fixed block is to be used for fixing flexible expansion link; Set upright joint the flexible connector shell radially is fixed in the centre bore of drilling rod, avoid it in use acutely to rock; Quick plug is used for two instrument butt joints.
, well head earlier a parameter pipe nipple drilling rod is stuck in well head when operating; The derrick hook block is with another parameter pipe nipple drilling rod sling (this drilling rod is equipped with flexible connecting device); Transfer apart from about well head drilling rod 300mm and stop; The well head operating personnel pull out the quick plug of flexible connector, and its quick plug and flexible expansion link connect together, retractable.Be inserted on the socket of another instrument in the well head drilling rod, be tightened onto on the socket coupling nut on the quick plug also fastening then with spanner.Then, transfer lifting drilling rod and well head drilling rod butt joint and urgent, accomplish butt joint with hydraulic tongs.
This well logging during instrument flexible connecting device has overcome the shortcoming of existing well logging during instrument linkage; Utilize the scalable and flexible of flexible expansion link; Both can compensate the axial mismachining tolerance of two butt joint parameter pipe nipples, and because flexible expansion link is that the elastic wire organization level is made, can be crooked; So can compensate the beat that drilling rod when lifting produces again, the beat that has produced when having avoided the rigid telescopic bar can't compensate the drilling rod lifting and damaging.This linkage greatly reduces each well logging during instrument in the on-the-spot connection difficulty of well head, and on-the-spot dismounting and the fast sealing that can accomplish smoothly between the instrument connect.Can satisfy transfer of data, can supply power up and down again.Through recent well site practical operation, fault rate is extremely low, and is respond well.
The existing relatively linkage of this well logging during instrument flexible connecting device has solved well that execute-in-place difficulty, complex structure, cost are expensive, application life problem such as weak point, maintaining difficulty.
Description of drawings
Fig. 1 is the assembling sketch map of well logging during instrument flexible connecting device.
Fig. 2 is the structural representation of well logging during instrument flexible connecting device.
Wherein: 1 solidus box, 2 cables, 3 stop collars, 4 fixed blocks, 5 flexible connector shells, 6 flexible expansion links, 7 are set upright joint, 8 quick plugs, 9 drilling rods.
The specific embodiment
Well logging during instrument flexible connecting device of the present invention by solidus box 1, cable 2, stop collar 3, fixed block 4, flexible expansion link 5, set upright joint 6, flexible connector shell 7 and quick plug 8 and constitute; Set upright joint and be arranged in drilling rod 9 centre bores, external diameter and drilling rod centre bore are complementary, and the flexible connector shell is arranged in the drilling rod centre bore; The lower end is fixed on to be set upright on the joint, and the solidus box is positioned at flexible connector shell upper end, and the solidus box is provided with a pressing plate; The cable upper end is fixed by pressing plate, and stop collar is positioned at the flexible connector shell, sets upright outside the joint centre bore; Be connected with the fixed block upper surface; The fixed block lower surface is connected with flexible expansion link, and flexible expansion link passes to be set upright the joint centre bore and be connected with quick plug, and the cable lower end is passed stop collar, fixed block, flexible expansion link centre bore and is connected with quick plug.
Claims (2)
1. well logging during instrument flexible connecting device is by solidus box, cable, stop collar, fixed block, flexible expansion link, set upright joint, flexible connector shell and quick plug and constitute; It is characterized in that: set upright joint and be arranged in the drilling rod centre bore, external diameter and drilling rod centre bore are complementary, and the flexible connector shell is arranged in the drilling rod centre bore; The lower end is fixed on to be set upright on the joint, and the solidus box is positioned at flexible connector shell upper end, and the solidus box is provided with a pressing plate; The cable upper end is fixed by pressing plate, and stop collar is positioned at the flexible connector shell, sets upright outside the joint centre bore; Be connected with the fixed block upper surface; The fixed block lower surface is connected with flexible expansion link, and flexible expansion link passes to be set upright the joint centre bore and be connected with quick plug, and the cable lower end is passed stop collar, fixed block, flexible expansion link centre bore and is connected with quick plug.
2. well logging during instrument flexible connecting device according to claim 1 is characterized in that: flexible expansion link is to be made by the elastic wire organization level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010275988.4A CN102400671B (en) | 2010-09-07 | 2010-09-07 | Flexible connection device of logging-while-drilling instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010275988.4A CN102400671B (en) | 2010-09-07 | 2010-09-07 | Flexible connection device of logging-while-drilling instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102400671A true CN102400671A (en) | 2012-04-04 |
| CN102400671B CN102400671B (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010275988.4A Active CN102400671B (en) | 2010-09-07 | 2010-09-07 | Flexible connection device of logging-while-drilling instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102400671B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014012349A1 (en) * | 2012-07-20 | 2014-01-23 | 中国石油天然气集团公司 | Information transmission apparatus of well logging during drilling |
| CN109888563A (en) * | 2019-04-18 | 2019-06-14 | 中国科学院地质与地球物理研究所 | One kind is with brill instrument multicore straight cutting electric connection structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3567879A (en) * | 1969-05-02 | 1971-03-02 | Schlumberger Technology Corp | Apparatus for facilitating the descent of cable-suspended well tools through deviated well bores |
| CN200940481Y (en) * | 2006-04-26 | 2007-08-29 | 中国石油天然气集团公司 | Radial flexible anti-shock structure of skeleton roller |
| CN200982192Y (en) * | 2006-12-14 | 2007-11-28 | 中国石油天然气集团公司 | Double flexibility joint for multi-bottom branch well |
| CN201059188Y (en) * | 2007-05-22 | 2008-05-14 | 陈耕 | Flexible connector base-piece and flexible connector |
| CN101291050A (en) * | 2008-06-11 | 2008-10-22 | 中国石油集团钻井工程技术研究院 | Electric cable winding/paying off device, down-hole information transmission apparatus and method |
| CN101294480A (en) * | 2008-06-03 | 2008-10-29 | 中国海洋石油总公司 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
| CN201843603U (en) * | 2010-09-07 | 2011-05-25 | 中国石油天然气集团公司 | Flexible connector for logging while drilling apparatus |
-
2010
- 2010-09-07 CN CN201010275988.4A patent/CN102400671B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3567879A (en) * | 1969-05-02 | 1971-03-02 | Schlumberger Technology Corp | Apparatus for facilitating the descent of cable-suspended well tools through deviated well bores |
| CN200940481Y (en) * | 2006-04-26 | 2007-08-29 | 中国石油天然气集团公司 | Radial flexible anti-shock structure of skeleton roller |
| CN200982192Y (en) * | 2006-12-14 | 2007-11-28 | 中国石油天然气集团公司 | Double flexibility joint for multi-bottom branch well |
| CN201059188Y (en) * | 2007-05-22 | 2008-05-14 | 陈耕 | Flexible connector base-piece and flexible connector |
| CN101294480A (en) * | 2008-06-03 | 2008-10-29 | 中国海洋石油总公司 | Device for drilling miniature borehole on ultra-short radius of coiled tubing |
| CN101291050A (en) * | 2008-06-11 | 2008-10-22 | 中国石油集团钻井工程技术研究院 | Electric cable winding/paying off device, down-hole information transmission apparatus and method |
| CN201843603U (en) * | 2010-09-07 | 2011-05-25 | 中国石油天然气集团公司 | Flexible connector for logging while drilling apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014012349A1 (en) * | 2012-07-20 | 2014-01-23 | 中国石油天然气集团公司 | Information transmission apparatus of well logging during drilling |
| US9816327B2 (en) | 2012-07-20 | 2017-11-14 | China National Petroleum Corporation | Information transmission apparatus for logging while drilling |
| CN109888563A (en) * | 2019-04-18 | 2019-06-14 | 中国科学院地质与地球物理研究所 | One kind is with brill instrument multicore straight cutting electric connection structure |
| US11081837B2 (en) | 2019-04-18 | 2021-08-03 | Institute Of Geology And Geophysics, Chinese Academy Of Sciences | Multi core plug in electrical connection structure for logging while drilling tools |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102400671B (en) | 2014-06-04 |
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