CN102141636B - Piston-type pushing electrode for through-casing resistivity - Google Patents
Piston-type pushing electrode for through-casing resistivity Download PDFInfo
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- CN102141636B CN102141636B CN 201010593397 CN201010593397A CN102141636B CN 102141636 B CN102141636 B CN 102141636B CN 201010593397 CN201010593397 CN 201010593397 CN 201010593397 A CN201010593397 A CN 201010593397A CN 102141636 B CN102141636 B CN 102141636B
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- electrode
- probe
- piston
- slip ring
- arm
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- 239000000523 sample Substances 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000010985 leather Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention belongs to the field of petroleum testing devices, and particularly relates to a piston type through-casing resistivity push electrode which comprises an electrode support (3), a piston cylinder (5) fixedly connected to the electrode support (3), a probe base (12) provided with an electrode probe (10), a slip ring (15) and a probe centralizing arm (2); two ends of the probe righting arm (2) are respectively connected with the probe seat (12) and the slip ring (15) in a shaft manner; the slip ring (15) is in sliding sleeve joint with the end part of the electrode bracket (3); an arm-retracting spring (1) is sleeved on the inner side of the slip ring (15) at the end part of the electrode bracket (3); the top end of the secondary piston (7) of the piston cylinder (5) is fixedly connected with the probe seat (12) in a matching mode; an insulating pad (9) is fixedly arranged at the top end of the secondary piston (7); and a probe insulating sleeve (11) is sleeved outside the electrode probe (10). The invention is not easy to damage in high temperature environment, has high reliability, convenient electrode maintenance and low maintenance cost.
Description
Technical field
The invention belongs to oil proving installation field, relate in particular to a kind of TCR backup electrode in the form of piston.
Background technology
Crossing in the geophysical well logging research method, electrical measuring method is the abundantest a kind of of quantity of information, and resistivity logging is must survey in all well logging projects a kind of.The through casing resistivity logging technology is for estimating remaining oil saturation, and improving recovery ratio provides new logging technology means, is state-of-the-art a kind of cover back logging technology.
The backup electrodes use of the through casing resistivity logging instrument of use is the leather bag structure at present; Hydraulic system is through stretching leather bag for the leather bag oiling to realize the backup and the withdrawal of electrode; Because each well logging leather bag all will stretch nearly thousand times; Under the high temperature and high pressure environment of down-hole, leather bag is very easy to damaged, causes the well logging failure.Therefore need the low backup structure of a kind of failure rate of development.
Summary of the invention
The present invention is intended to overcome the weak point of prior art and provides a kind of not fragile under hot environment, and temperature tolerance and reliability are high, electrodes maintenance easy maintenance, the TCR backup electrode in the form of piston that maintenance cost is low.
For achieving the above object, the present invention is achieved in that
A kind of TCR backup electrode in the form of piston, it comprises electrode suppor, is fixed in the piston cylinder on the electrode suppor, the probe socket of being furnished with electrode catheter, slip ring and probe righting arm; The two ends of said probe righting arm are coupling with probe socket and slip ring respectively; The end slip socket of said slip ring and electrode suppor; In the end of said electrode suppor, be with receipts arm spring in the inboard of slip ring; The top and the probe socket of said piston cylinder second piston fixedly connect.
As a kind of preferred version, the present invention fixedly is furnished with insulating mat on the top of said second piston.
As another kind of preferred version, the present invention is with the probe insulation sleeve in said electrode catheter outside.
Piston type backup electrode of the present invention has solved the problem that the leather bag of electrode backup in the past (environment temperature more than 110 ℃ time) under hot environment damages easily.Novel piston type backup electrode active dynamic component is a metallic piston formula structure, and temperature tolerance and reliability are high, and the maintaining of electrode is convenient, and the replacing of measuring probe is easy.The maintenance cost and the maintenance efficiency of instrument have been reduced.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Among the figure: 1 for receiving the arm spring; 2 are the probe righting arm; 3 is electrode suppor; 4 is pouring orifice; 5 is piston cylinder; 6 is first stage piston; 7 is second piston; 8 are the oiling chamber; 9 is insulating mat; 10 is electrode catheter; 11 is the probe insulation sleeve; 12 is probe socket; 13 are sealing 0 type circle; 14 is movable axis.
Embodiment
Referring to shown in Figure 1, TCR backup electrode in the form of piston comprises electrode suppor 3, is fixed in the piston cylinder 5 on the electrode suppor 3, the probe socket 12 of being furnished with electrode catheter 10, slip ring 15 and probe righting arm 2; The two ends of said probe righting arm 2 are coupling with probe socket 12 and slip ring 15 respectively; The end slip socket of said slip ring 15 and electrode suppor 3; In the end of said electrode suppor 3, be with receipts arm spring 1 in the inboard of slip ring 15; The top and the probe socket 12 of said piston cylinder 5 second pistons 7 fixedly connect.The present invention fixedly is furnished with insulating mat 9 on the top of said second piston 7.In addition, the present invention is with probe insulation sleeve 11 in said electrode catheter 10 outsides.
Piston cylinder 5 is fixed on the electrode suppor 3, and piston cylinder 5 is connected with external hydraulic system through pouring orifice 4 and hydraulic line.In piston cylinder 5, do not have under the situation of pressure; Receive arm spring 1 and under the effect of self elastic force, promote slip ring 15 laterally; Probe righting arm 2 and probe socket 12 are connected with slip ring 15 through movable axis 14; Laterally in the motion process, probe socket 12 inside compression electrodes probes 10 make electrode be in rounding state at slip ring 15.When needs are pushed when probe open,,, electrode catheter 10 pushed against on the internal surface of sleeve pipe measure at the outside motion promotion electrode catheters 10 of the effect next stage piston 6 of hydraulic pressure and second piston 7 through external hydraulic system oiling in the oiling chamber.Insulating mat 9 is fixed on the top of second piston 7 through screw thread, and electrode catheter 10 outsides are with probe insulation sleeve 11.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a TCR backup electrode in the form of piston is characterized in that, comprises electrode suppor (3), is fixed in the piston cylinder (5) on the electrode suppor (3), the probe socket (12) of being furnished with electrode catheter (10), slip ring (15) and probe righting arm (2); The two ends of said probe righting arm (2) are coupling with probe socket (12) and slip ring (15) respectively; The end slip socket of said slip ring (15) and electrode suppor (3); End in said electrode suppor (3) is with receipts arm spring (1) in the inboard of slip ring (15); The top and the probe socket (12) of the second piston (7) of said piston cylinder (5) fixedly connect.
2. TCR backup electrode in the form of piston according to claim 1 is characterized in that: fixedly be furnished with insulating mat (9) on the top of said second piston (7).
3. TCR backup electrode in the form of piston according to claim 2 is characterized in that: be with probe insulation sleeve (11) in said electrode catheter (10) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010593397 CN102141636B (en) | 2010-12-17 | 2010-12-17 | Piston-type pushing electrode for through-casing resistivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010593397 CN102141636B (en) | 2010-12-17 | 2010-12-17 | Piston-type pushing electrode for through-casing resistivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102141636A CN102141636A (en) | 2011-08-03 |
| CN102141636B true CN102141636B (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010593397 Expired - Fee Related CN102141636B (en) | 2010-12-17 | 2010-12-17 | Piston-type pushing electrode for through-casing resistivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102141636B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536198B (en) * | 2012-01-19 | 2015-04-15 | 武汉海王机电工程技术公司 | Electrode measuring pushing-against mechanism of casing-through resistivity logging instrument |
| CN103225507B (en) * | 2013-04-26 | 2015-11-25 | 武汉海王机电工程技术公司 | Oil well logging instrument mechanical type pushing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079307A1 (en) * | 1999-06-22 | 2000-12-28 | Schlumberger Technology B.V. | A method and apparatus for determining the resistivity of a formation surrounding a cased well |
| CN201273189Y (en) * | 2008-09-27 | 2009-07-15 | 中国石油天然气集团公司 | Through casing resistivity logging detector |
| CN201310348Y (en) * | 2008-12-15 | 2009-09-16 | 中国石油集团长城钻探工程有限公司 | Leather bag sealing device for through casing resistivity apparatus |
-
2010
- 2010-12-17 CN CN 201010593397 patent/CN102141636B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079307A1 (en) * | 1999-06-22 | 2000-12-28 | Schlumberger Technology B.V. | A method and apparatus for determining the resistivity of a formation surrounding a cased well |
| CN201273189Y (en) * | 2008-09-27 | 2009-07-15 | 中国石油天然气集团公司 | Through casing resistivity logging detector |
| CN201310348Y (en) * | 2008-12-15 | 2009-09-16 | 中国石油集团长城钻探工程有限公司 | Leather bag sealing device for through casing resistivity apparatus |
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| Publication number | Publication date |
|---|---|
| CN102141636A (en) | 2011-08-03 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee after: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd. Address before: 100724 No. 6, Kang Street, six, Xicheng District, Beijing Patentee before: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20151217 |
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| EXPY | Termination of patent right or utility model |