CN201843603U - Flexible connector for logging while drilling apparatus - Google Patents
Flexible connector for logging while drilling apparatus Download PDFInfo
- Publication number
- CN201843603U CN201843603U CN2010205229936U CN201020522993U CN201843603U CN 201843603 U CN201843603 U CN 201843603U CN 2010205229936 U CN2010205229936 U CN 2010205229936U CN 201020522993 U CN201020522993 U CN 201020522993U CN 201843603 U CN201843603 U CN 201843603U
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- CN
- China
- Prior art keywords
- flexible
- flexible connector
- joint
- cable
- centre bore
- 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 - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 26
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000008520 organization Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 description 6
- 210000002445 nipple Anatomy 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a flexible connector for a logging while drilling apparatus. The flexible connector is composed of a cable fixing box, a cable, a limiting sleeve, a fixing block, a flexible telescopic rod, a centralizing joint, a shell of the flexible connector and a quick plug; the centralizing joint is arranged in a central hole of a drill rod; the outer diameter of the centralizing joint is matched with the central hole of the drill rod; the shell of the flexible connector is arranged in the central hole of the drill rod; the lower end of the shell of the flexible connector is fixed on the centralizing joint; the cable fixing box is arranged at the upper end in the shell of the flexible connector; a pressure plate is arranged on the cable fixing box; the upper end of the cable is fixed by the pressure plate; the limiting sleeve is arranged in the shell of the flexible connector and outside the centralizing joint and is connected with the upper end surface of the fixing block; the lower end surface of the fixing block is connected with the flexible telescopic rod; the flexible telescopic rod penetrates through the central hole of the centralizing joint and is connected with the quick plug; and the lower end of the cable penetrates through the limiting sleeve, the fixing block and the central hole of flexible telescopic rod and is connected with the quick plug. The connector can satisfy the data transmission and can supply power up and down. Through the recently practical operation in the well site, the flexible connector has extremely low failure rate and excellent effects.
Description
Technical field
The utility model 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, drilling rod adaptivity to different length is good, 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.
The utility model content
The purpose of this utility model provides 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 described in the utility model 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, 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, the solidus box is positioned at flexible connector shell upper end, the solidus box is provided with a pressing plate, the cable upper end is fixed by pressing plate, stop collar is positioned at the flexible connector shell, set 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, flexible expansion link passes to be set upright the joint centre bore and is connected with quick plug, and stop collar is passed in the cable lower end, fixed block, the flexible expansion link centre bore 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 described in the utility model, 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, be used to limit the flexible length of flexible expansion link, 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.
When operating, well head earlier a parameter pipe nipple drilling rod is stuck in well head, 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, its quick plug and flexible expansion link connect together, retractable.Be inserted on the socket of another instrument in the well head drilling rod, then the coupling nut on the quick plug be tightened onto on the socket also fastening with spanner.Then, transfer lifting drilling rod and well head drilling rod butt joint and urgent, finish 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 the connection difficulty of each well logging during instrument at the well head scene, and on-the-spot dismounting and the fast sealing that can finish smoothly between the instrument connect.Can satisfy transfer of data, can 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 problems such as execute-in-place difficulty, complex structure, cost costliness, application life weak point, maintaining difficulty well.
Description of drawings
Fig. 1 is the assembling schematic diagram 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 described in the utility model by solidus box 1, cable 2, stop collar 3, fixed block 4, flexible expansion link 6, set upright joint 7, flexible connector shell 5 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, 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, the solidus box is positioned at flexible connector shell upper end, the solidus box is provided with a pressing plate, the cable upper end is fixed by pressing plate, stop collar is positioned at the flexible connector shell, set 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, flexible expansion link passes to be set upright the joint centre bore and is connected with quick plug, and stop collar is passed in the cable lower end, fixed block, the flexible expansion link centre bore 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, 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, the solidus box is positioned at flexible connector shell upper end, the solidus box is provided with a pressing plate, the cable upper end is fixed by pressing plate, stop collar is positioned at the flexible connector shell, set 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, flexible expansion link passes to be set upright the joint centre bore and is connected with quick plug, and stop collar is passed in the cable lower end, fixed block, the flexible expansion link centre bore 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 |
|---|---|---|---|
| CN2010205229936U CN201843603U (en) | 2010-09-07 | 2010-09-07 | Flexible connector for logging while drilling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205229936U CN201843603U (en) | 2010-09-07 | 2010-09-07 | Flexible connector for logging while drilling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843603U true CN201843603U (en) | 2011-05-25 |
Family
ID=44038496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205229936U Expired - Lifetime CN201843603U (en) | 2010-09-07 | 2010-09-07 | Flexible connector for logging while drilling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400671A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN105134095A (en) * | 2015-08-11 | 2015-12-09 | 中国石油天然气集团公司 | Telescopic connector for logging-while-drilling instrument |
-
2010
- 2010-09-07 CN CN2010205229936U patent/CN201843603U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400671A (en) * | 2010-09-07 | 2012-04-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN102400671B (en) * | 2010-09-07 | 2014-06-04 | 中国石油天然气集团公司 | Flexible connection device of logging-while-drilling instrument |
| CN105134095A (en) * | 2015-08-11 | 2015-12-09 | 中国石油天然气集团公司 | Telescopic connector for logging-while-drilling instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20140604 |
|
| RGAV | Abandon patent right to avoid regrant |