CN102168554A - Through-casing resistivity push electrode system of independent supporting arm - Google Patents
Through-casing resistivity push electrode system of independent supporting arm Download PDFInfo
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- CN102168554A CN102168554A CN201010593400XA CN201010593400A CN102168554A CN 102168554 A CN102168554 A CN 102168554A CN 201010593400X A CN201010593400X A CN 201010593400XA CN 201010593400 A CN201010593400 A CN 201010593400A CN 102168554 A CN102168554 A CN 102168554A
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- 239000000523 sample Substances 0.000 claims abstract description 12
- 238000005259 measurement Methods 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 210000002445 nipple Anatomy 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
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Abstract
The invention belongs to the field of petroleum testing devices, and particularly relates to an over-casing resistivity push electrode system of an independent supporting arm, which comprises an electrode unit; the electrode unit comprises an electrode system upper joint (1), a measuring electrode shell (2), a supporting arm (3), a measuring probe (4), a measuring arm (5) and a hydraulic cylinder arranged in the measuring electrode shell (2); the end part of the measuring arm (5) is coupled with the measuring electrode shell (2) by a shaft; the working end of the hydraulic cylinder is coupled with the end part of the measuring arm (5) through a supporting arm (3); a measuring probe (4) is fixedly arranged at the top end of the measuring arm (5); the upper joint (1) of the electrode system is fixedly connected with the end part of the measuring electrode shell (2). The invention is convenient for maintenance and transportation, and can ensure that the electrode is reliably pushed against the casing wall.
Description
Technical field
The invention belongs to oil testing arrangement field, relate in particular to a kind of TCR backup electrode system of independent support arm.
Background technology
The through casing resistivity logging instrument mainly is the formation resistivity behind the measurement sleeve pipe.The electrode apparatus backup to being close to casing wall, is switched on to sleeve pipe by electrode.Because sleeve pipe and stratum all are conductors, can arrive electromotive force in other position probing of casing wall.Main electric current is in sleeve pipe, and seldom a part flows into the stratum.The amount that enters the electric current on stratum is by the decision of the electrical conductivity on stratum.The electrode of instrument is measured from the electrical potential difference of casing leakage electric current, and the electrical conductivity on it and stratum is proportional.By analyzing the resistivity distribution of cased well, and then find the oil reservoir of possible leakage.
Existing through casing resistivity logging instrument is owing to the defective that exists in the design, and its logging efficiency is low, when sleeve pipe deforms, can not guarantee that each exploring electrode all can be pushed against on the casing wall.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and provides a kind of simple in structure, safeguards convenient transportation, can guarantee that electrode is pushed against the TCR backup electrode system of the independent support arm on the casing wall reliably.
For achieving the above object, the present invention is achieved in that
A kind of TCR backup electrode system of independent support arm, it comprises electrode unit; Described electrode unit comprises electrode system top connection, measurement electrode shell, support arm, measuring probe, gage beam and places the interior hydraulic cylinder of measurement electrode shell; The end of described gage beam and measurement electrode shell are coupling; The working end of described hydraulic cylinder is coupling through the end of support arm and gage beam; Top at described gage beam is fixed with measuring probe; The end of described electrode system top connection and measurement electrode shell fixedly connects.
As a kind of preferred version, electrode unit of the present invention is 4; Each electrode unit fixedly connects through connecting pipe nipple; 4 electrode units are equidistantly arranged.
The present invention is simple in structure, safeguards convenient transportation, because each support arm all by a hydraulic cylinder backup, can guarantee that electrode is pushed against on the casing wall reliably.In addition, hydraulic system of the present invention and measurement electrode system adopt hard the connection, and the instrument maintenance convenient transportation can directly transport with engineering truck.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is a deployed condition overall structure schematic diagram of the present invention;
Fig. 2 is a retracted state overall structure schematic diagram of the present invention.
Among the figure: 1 is the electrode system top connection; 2 is the measurement electrode shell; 3 is support arm; 4 is measuring probe; 5 is gage beam; 6 for connecting pipe nipple.
The specific embodiment
Referring to Figure 1 and Figure 2, a kind of TCR backup electrode system of independent support arm, it comprises electrode unit; Described electrode unit comprises electrode system top connection 1, measurement electrode shell 2, support arm 3, measuring probe 4, gage beam 5 and places hydraulic cylinder in the measurement electrode shell 2; The end of described gage beam 5 and measurement electrode shell 2 are coupling; The working end of described hydraulic cylinder is coupling through the end of support arm 3 with gage beam 5; Be fixed with measuring probe 4 on the top of described gage beam 5; Described electrode system top connection 1 fixedly connects with the end of measurement electrode shell 2.
Electrode system of the present invention comprises four electrode units, and each electrode unit comprises that 5, four electrode units of two gage beams equidistantly arrange, and distance is 500mm between the electrode unit, the direction unanimity.(referring to accompanying drawing)
All there is a hydraulic cylinder at the two ends of each electrode unit of the present invention, and cylinder pushes support arm 3 opens gage beam 5, and each gage beam 5 all has an independent hydraulically controlled cylinder backup, and opening or drawing in of gage beam 5 is subjected to connected HYDRAULIC CONTROL SYSTEM.
There is measuring probe 4 on the top of gage beam 5 of the present invention, and probe 4 is a hard metal alloys, and probe and tool housing are separated by insulation materials.
The pipe nipple 6 of connection is arranged between each electrode unit of the present invention, and available as required nonmetals insulate.The electrode system upper end is electrode system top connection 1, and this position is connected with hydraulic system.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the TCR backup electrode system of an independent support arm is characterized in that, comprises electrode unit; Described electrode unit comprises electrode system top connection (1), measurement electrode shell (2), support arm (3), measuring probe (4), gage beam (5) and places the interior hydraulic cylinder of measurement electrode shell (2); The end of described gage beam (5) and measurement electrode shell (2) are coupling; The working end of described hydraulic cylinder is coupling through the end of support arm (3) with gage beam (5); Be fixed with measuring probe (4) on the top of described gage beam (5); Described electrode system top connection (1) fixedly connects with the end of measurement electrode shell (2).
2. the TCR backup electrode system of independent support arm according to claim 1 is characterized in that: described electrode unit is 4; Each electrode unit fixedly connects through connecting pipe nipple (6); 4 electrode units are equidistantly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593400XA CN102168554A (en) | 2010-12-17 | 2010-12-17 | Through-casing resistivity push electrode system of independent supporting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593400XA CN102168554A (en) | 2010-12-17 | 2010-12-17 | Through-casing resistivity push electrode system of independent supporting arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102168554A true CN102168554A (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010593400XA Pending CN102168554A (en) | 2010-12-17 | 2010-12-17 | Through-casing resistivity push electrode system of independent supporting arm |
Country Status (1)
| Country | Link |
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| CN (1) | CN102168554A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536198A (en) * | 2012-01-19 | 2012-07-04 | 武汉海王机电工程技术公司 | Electrode measuring pushing-against mechanism of casing-through resistivity logging instrument |
| CN103758510A (en) * | 2014-01-24 | 2014-04-30 | 中国石油大学(北京) | Current signal emission source down-hole three-electrode system |
| CN109458140A (en) * | 2018-08-21 | 2019-03-12 | 王少斌 | A kind of controllable multi-arm pushing structure independently upheld |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002063A (en) * | 1975-09-26 | 1977-01-11 | Dresser Industries, Inc. | Well logging pad devices having differential pressure relief |
| CN2344544Y (en) * | 1998-07-22 | 1999-10-20 | 汤井林 | Sidewall contact hole diameter microelectrode combined logging instrument |
| CN1349614A (en) * | 1999-04-28 | 2002-05-15 | 施蓝姆伯格技术公司 | Method and apparatus for determing the resistivity of a formation through which a cased well passes |
| CN2753881Y (en) * | 2004-12-09 | 2006-01-25 | 王晓东 | Electronic-sensing type well-diameter micro electrode combined logging instrument |
| US20060250136A1 (en) * | 2002-09-25 | 2006-11-09 | Dominique Benimeli | Device and process for determination of the resistivity of a formation surrounding a cased borehole |
| CN201273189Y (en) * | 2008-09-27 | 2009-07-15 | 中国石油天然气集团公司 | Through casing resistivity logging detector |
| CN101649739A (en) * | 2008-08-13 | 2010-02-17 | 中国石油天然气集团公司 | Method for improving measurement precision of stratum specific resistance |
-
2010
- 2010-12-17 CN CN201010593400XA patent/CN102168554A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002063A (en) * | 1975-09-26 | 1977-01-11 | Dresser Industries, Inc. | Well logging pad devices having differential pressure relief |
| CN2344544Y (en) * | 1998-07-22 | 1999-10-20 | 汤井林 | Sidewall contact hole diameter microelectrode combined logging instrument |
| CN1349614A (en) * | 1999-04-28 | 2002-05-15 | 施蓝姆伯格技术公司 | Method and apparatus for determing the resistivity of a formation through which a cased well passes |
| US20060250136A1 (en) * | 2002-09-25 | 2006-11-09 | Dominique Benimeli | Device and process for determination of the resistivity of a formation surrounding a cased borehole |
| CN2753881Y (en) * | 2004-12-09 | 2006-01-25 | 王晓东 | Electronic-sensing type well-diameter micro electrode combined logging instrument |
| CN101649739A (en) * | 2008-08-13 | 2010-02-17 | 中国石油天然气集团公司 | Method for improving measurement precision of stratum specific resistance |
| CN201273189Y (en) * | 2008-09-27 | 2009-07-15 | 中国石油天然气集团公司 | Through casing resistivity logging detector |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536198A (en) * | 2012-01-19 | 2012-07-04 | 武汉海王机电工程技术公司 | Electrode measuring pushing-against mechanism of casing-through resistivity logging instrument |
| 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 |
| CN103758510A (en) * | 2014-01-24 | 2014-04-30 | 中国石油大学(北京) | Current signal emission source down-hole three-electrode system |
| CN103758510B (en) * | 2014-01-24 | 2016-06-08 | 中国石油大学(北京) | Current signal emission source down-hole three electrode system |
| CN109458140A (en) * | 2018-08-21 | 2019-03-12 | 王少斌 | A kind of controllable multi-arm pushing structure independently upheld |
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Application publication date: 20110831 |