CN202832521U - Electronic resource management initiative (ERMI) microresistivity scanning imaging logger instrument for special use of offshore oil platform - Google Patents
Electronic resource management initiative (ERMI) microresistivity scanning imaging logger instrument for special use of offshore oil platform Download PDFInfo
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- CN202832521U CN202832521U CN 201220473058 CN201220473058U CN202832521U CN 202832521 U CN202832521 U CN 202832521U CN 201220473058 CN201220473058 CN 201220473058 CN 201220473058 U CN201220473058 U CN 201220473058U CN 202832521 U CN202832521 U CN 202832521U
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- microresistivity
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Abstract
An electronic resource management initiative ERMI microresistivity scanning imaging logger instrument for special use of offshore oil platform is characterized in that the electronic resource management initiative ERMI microresistivity scanning imaging logger instrument for special use of offshore oil platform comprises a sidewall contact device, an electronic circuit short section and an insulation short section, wherein, one end of the electronic circuit short section is connected to the insulation short section, the other end of the electronic circuit short section is connected to the sideway contact device in a two way mode. The electronic resource management initiative ERMI microresistivity scanning imaging logger instrument for special use of offshore oil platform has the advantages that the electronic resource management initiative ERMI microresistivity scanning imaging logger instrument for special use of offshore oil platform has a humanized interface. The electronic resource management initiative ERMI microresistivity scanning imaging logger instrument for special use of offshore oil platform is audio visual and easy to operate. The device has reasonable structure with accurate measurement.
Description
(1) technical field:
The utility model relates to the underground survey field, the special-purpose ERMI microresistivity of especially a kind of offshore platform scanning and imaging logging instrument.
(2) background technology:
Underground work is one of focus of paying close attention to of people always, how to make underground work become more quick, accurately, precision is high, in real time also to become the test of object, especially resistivity that this area research personnel in recent years pay close attention to be study hotspot to the technical barrier of reflection down-hole situation always.Present resistivity tester both domestic and external adopts 57 systems mostly, this system architecture is simple to operation, but visual bad, and can not well carry out man-machine exchange, also there is simultaneously precision problem, therefore, increasing difficulty appears at again on the Measurement accuracy of resistivity, especially in the test of the scanning imagery of microresistivity.
(3) utility model content:
The purpose of this utility model is to provide the special-purpose ERMI microresistivity of a kind of offshore platform scanning and imaging logging instrument, and it can overcome the deficiencies in the prior art, is the hommization of a kind of interface, the logging instrument that directly perceived, easy to operate, rational in infrastructure, precision is high.
The technical solution of the utility model: the special-purpose ERMI microresistivity of a kind of offshore platform scanning and imaging logging instrument is characterized in that it comprises telescoping ram, electronic cartridge and insulating short section; Wherein, described electronic cartridge one end connects insulating short section, and the other end is two-way with telescoping ram and is connected.
Described telescoping ram is to push away the receipts motor by pressure balancing system, platen potentiometer, hole diameter potentiometer, backup arm actuating mechanism, hole diameter backup arm, polar plate device, hole diameter backup arm to connect to form; Described polar plate device receives the signal that electronic cartridge sends, and driving hole diameter backup arm pushes away the receipts motor and makes the action of backup arm actuating mechanism; Described hole diameter backup arm receives the signal that the backup arm actuating mechanism sends, and pushes away under the control of receiving motor at the hole diameter backup arm and shrinks measurement; Described platen potentiometer and hole diameter potentiometer show detecting information, and the result is fed back to electronic cartridge by pressure balancing system.
6 independently backup arms are arranged at the bottom of described telescoping ram, and pole plate all is installed on each backup arm, and two row's small electrodes are installed above every pole plate.
Described electronic cartridge comprises power emission module, transformer, return electrode module, emission electrode module, resistance R _ f and signal amplification, collection and data processing module; Wherein, described power emission module is sent signal, and its output connects the input of emission electrode module through transformer; The input of described emission electrode module connects on the pole plate of telescoping ram, the output that connects simultaneously the return electrode module through the Secondary Winding of transformer, its output connects the input of return electrode module, and connects the input of signal amplification, collection and data processing module through resistance R _ f; The signal that described amplification, collection and data processing module send the emission electrode module amplifies processing, and output feeds back to the emission electrode module; Described emission electrode module is input to the signal that obtains in the return electrode module, obtains the situation of change of microresistivity by the test back flow current.
Described emission electrode module is as voltage source emission 2kHz alternating current.
Described return electrode module is equipped with orientation logging instrument and gamma ray logger as housings.
Operating principle of the present utility model: at first, the emission electrode module produces the voltage source of 2KHz alternating current, and this voltage source one terminates on the shell of pole plate, and one terminates on the return electrode.Because the variation of the Around A Borehole rock resistivity that lithology, physical property variation and crack, hole, bedding etc. all can cause, when pole plate abuts on the borehole wall with suitable strength, then, voltage source will be between pole plate, measured borehole wall section, return electrode the electric current of formation and modification.At last, flow through the electric current that array electric is buckled on the pole plate by measurement, but and be the image of colour or tonal gradation with this electric current by suitable processing scale, thereby with the variation of image reflection stratum microresistivity.
Superiority of the present utility model is: interface hommization, directly perceived and easy to operate; Apparatus structure is reasonable; Certainty of measurement is high.
(4) description of drawings:
Fig. 1 is the structural representation of the special-purpose ERMI microresistivity of the related a kind of offshore platform of the utility model scanning and imaging logging instrument;
Fig. 2 is the structural representation of the electronic cartridge of the special-purpose ERMI microresistivity of the related a kind of offshore platform of the utility model scanning and imaging logging instrument.
Wherein, 1 is telescoping ram; 2 is electronic cartridge; 3 is insulating short section.
(5) specific embodiment:
Embodiment: the special-purpose ERMI microresistivity of a kind of offshore platform scanning and imaging logging instrument (see figure 1) is characterized in that it comprises telescoping ram 1, electronic cartridge 2 and insulating short section 3; Wherein, described electronic cartridge 2 one ends connect insulating short section 3, and the other end is two-way with telescoping ram 1 and is connected.
Described telescoping ram 1 is to push away the receipts motor by pressure balancing system, platen potentiometer, hole diameter potentiometer, backup arm actuating mechanism, hole diameter backup arm, polar plate device, hole diameter backup arm to connect to form; Described polar plate device receives the signal that electronic cartridge sends, and driving hole diameter backup arm pushes away the receipts motor and makes the action of backup arm actuating mechanism; Described hole diameter backup arm receives the signal that the backup arm actuating mechanism sends, and pushes away under the control of receiving motor at the hole diameter backup arm and shrinks measurement; Described platen potentiometer and hole diameter potentiometer show detecting information, and the result is fed back to electronic cartridge by pressure balancing system.
6 independently backup arms are arranged at the bottom of described telescoping ram 1, and pole plate all is installed on each backup arm, and two row's small electrodes are installed above every pole plate.
Described electronic cartridge 2(sees Fig. 2) comprise power emission module, transformer, return electrode module, emission electrode module, resistance R _ f and signal amplification, collection and data processing module; Wherein, described power emission module is sent signal, and its output connects the input of emission electrode module through transformer; The input of described emission electrode module connects on the pole plate of telescoping ram, the output that connects simultaneously the return electrode module through the Secondary Winding of transformer, its output connects the input of return electrode module, and connects the input of signal amplification, collection and data processing module through resistance R _ f; The signal that described amplification, collection and data processing module send the emission electrode module amplifies processing, and output feeds back to the emission electrode module; Described emission electrode module is input to the signal that obtains in the return electrode module, obtains the situation of change of microresistivity by the test back flow current.
Described emission electrode module is as voltage source emission 2KHz alternating current.
Described return electrode module is equipped with orientation logging instrument and gamma ray logger as housings.
The key technical indexes of the present utility model:
Maximum is born pressure: 20,000 psi (137.9 MPa);
High-temperature resistant: 175 ℃;
Resistivity measurement scope: 0.2～10000 ohm-m (0 ﹤ Rt/Rm ﹤ 20000);
Adapt to the well scope: 6.25 inches-21 inches;
Imaging coverage rate: 60%/8 inch;
Sample rate: 120 point/feet;
Longitudinal frame: 0.2 inch;
The maximum logging speed of instrument is 7.5m/min;
Depth sampling interval is 0.1 inch (0.254cm);
The longitudinal frame of instrument is 0.2 inch (0.51cm);
Circumferentially resolution ratio also is 0.2 inch (0.51cm);
The instrument investigation depth is 2 inches (5.08cm).
Claims (6)
1. the special-purpose ERMI microresistivity of an offshore platform scanning and imaging logging instrument is characterized in that it comprises telescoping ram, electronic cartridge and insulating short section; Wherein, described electronic cartridge one end connects insulating short section, and the other end is two-way with telescoping ram and is connected.
2. the special-purpose ERMI microresistivity of described a kind of offshore platform scanning and imaging logging instrument according to claim 1 is characterized in that described telescoping ram is to be pushed away by pressure balancing system, platen potentiometer, hole diameter potentiometer, backup arm actuating mechanism, hole diameter backup arm, polar plate device, hole diameter backup arm to receive motor and connect to form; Described polar plate device receives the signal that electronic cartridge sends, and driving hole diameter backup arm pushes away the receipts motor and makes the action of backup arm actuating mechanism; Described hole diameter backup arm receives the signal that the backup arm actuating mechanism sends, and pushes away under the control of receiving motor at the hole diameter backup arm and shrinks measurement; Described platen potentiometer and hole diameter potentiometer show detecting information, and the result is fed back to electronic cartridge by pressure balancing system.
3. the special-purpose ERMI microresistivity of described a kind of offshore platform scanning and imaging logging instrument according to claim 1,6 independently backup arms are arranged at the bottom that it is characterized in that described telescoping ram, pole plate all is installed on each backup arm, two row's small electrodes are installed above every pole plate.
4. the special-purpose ERMI microresistivity of described a kind of offshore platform scanning and imaging logging instrument according to claim 1 is characterized in that described electronic cartridge comprises power emission module, transformer, return electrode module, emission electrode module, resistance R _ f and signal amplification, collection and data processing module; Wherein, described power emission module is sent signal, and its output connects the input of emission electrode module through transformer; The input of described emission electrode module connects on the pole plate of telescoping ram, the output that connects simultaneously the return electrode module through the Secondary Winding of transformer, its output connects the input of return electrode module, and connects the input of signal amplification, collection and data processing module through resistance R _ f; The signal that described amplification, collection and data processing module send the emission electrode module amplifies processing, and output feeds back to the emission electrode module; Described emission electrode module is input to the signal that obtains in the return electrode module, obtains the situation of change of microresistivity by the test back flow current.
5. the special-purpose ERMI microresistivity of described a kind of offshore platform scanning and imaging logging instrument according to claim 4 is characterized in that described emission electrode module is as voltage source emission 2kHz alternating current.
6. the special-purpose ERMI microresistivity of described a kind of offshore platform scanning and imaging logging instrument according to claim 4 is characterized in that described return electrode module is equipped with orientation logging instrument and gamma ray logger as housings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220473058 CN202832521U (en) | 2012-09-17 | 2012-09-17 | Electronic resource management initiative (ERMI) microresistivity scanning imaging logger instrument for special use of offshore oil platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220473058 CN202832521U (en) | 2012-09-17 | 2012-09-17 | Electronic resource management initiative (ERMI) microresistivity scanning imaging logger instrument for special use of offshore oil platform |
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| Publication Number | Publication Date |
|---|---|
| CN202832521U true CN202832521U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220473058 Expired - Fee Related CN202832521U (en) | 2012-09-17 | 2012-09-17 | Electronic resource management initiative (ERMI) microresistivity scanning imaging logger instrument for special use of offshore oil platform |
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| CN (1) | CN202832521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076406A (en) * | 2014-07-18 | 2014-10-01 | 北京中石曙光科技有限公司 | Small-signal processing circuit for micro-resistivity scanning imaging |
| CN104712331A (en) * | 2015-02-06 | 2015-06-17 | 中国海洋石油总公司 | Well arm imaging logging device and method |
| CN109577965A (en) * | 2018-11-20 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of segmentation scale method of borehole wall micro-resisitivity image instrument |
-
2012
- 2012-09-17 CN CN 201220473058 patent/CN202832521U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076406A (en) * | 2014-07-18 | 2014-10-01 | 北京中石曙光科技有限公司 | Small-signal processing circuit for micro-resistivity scanning imaging |
| CN104076406B (en) * | 2014-07-18 | 2016-09-28 | 北京中石曙光科技有限公司 | Small signal process circuit for micro resistor |
| CN104712331A (en) * | 2015-02-06 | 2015-06-17 | 中国海洋石油总公司 | Well arm imaging logging device and method |
| CN104712331B (en) * | 2015-02-06 | 2017-09-08 | 中国海洋石油总公司 | A kind of well arm imaging well logging apparatus and method |
| CN109577965A (en) * | 2018-11-20 | 2019-04-05 | 中国石油天然气集团有限公司 | A kind of segmentation scale method of borehole wall micro-resisitivity image instrument |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150917 |
|
| EXPY | Termination of patent right or utility model |