CN2753881Y - Electronic-sensing type well-diameter micro electrode combined logging instrument - Google Patents
Electronic-sensing type well-diameter micro electrode combined logging instrument Download PDFInfo
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- CN2753881Y CN2753881Y CNU2004200583134U CN200420058313U CN2753881Y CN 2753881 Y CN2753881 Y CN 2753881Y CN U2004200583134 U CNU2004200583134 U CN U2004200583134U CN 200420058313 U CN200420058313 U CN 200420058313U CN 2753881 Y CN2753881 Y CN 2753881Y
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- hole diameter
- hinged
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- microelectrode
- displacement sensor
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Abstract
The utility model relates to an electronic sensing-type well-diameter micro-electrode combined logging instrument which is characterized in that a permanent magnet is respectively arranged at the inner side of each well-diameter arm at the hinged end of a casing; an electronic displacement sensor is installed at the position corresponding to each permanent magnet in a sealing barn; a single-chip microcomputer system which is electrically communicated with the electronic displacement sensor, is arranged in the sealing barn; any center of the well-diameter arm is provided with a sliding groove; one end of a connecting rod is connected along the sliding groove, and the other end of the connecting rod is hinged with one end which is provided with a plurality of micro-electrode plates. The free end of the well-diameter arm is hinged with the central position of each of the electrode plates; the single-chip microcomputer systems, the electronic displacement sensors, the micro-electrode plates, etc. are connected with a power supply and a controlling record instrument on the ground through a multi-core cable. The utility model has the advantages of novel structure, stability, reliability, high success ratio of measurement, etc. Simultaneously, the utility model skillfully combines a micro-electrode logging instrument for measuring the resistivity of a well wall and an electronic sensing-type well-diameter logging instrument to complete the measurement of two parameters once, and the use rate and the measuring efficiency of the instrument are improved.
Description
Technical field
The utility model relates to a kind of in petroleum exploration and development, is used for the logging instrument of the change in resistance of the in-site measurement drilling well vary in diameter and the borehole wall.
Background technology
In the oil exploitation drilling process, change drilling tool owing to often install, again owing to flushing and the immersion of the drilling mud that is full of in the well to the borehole wall, and the rock stratum is by swelling or dissolving etc., usually cause the irregular variation of borehole diameter, the therefore on-the-spot resistivity size that need often use caliper to measure the hole diameter size and the microelectrode system instrument measurement borehole wall.At present, domestic widely used resistance-type caliper logging instrument as shown in Figure 1, it is to be mutually 90 ° of 4 caliper logging arms of installation that distribute on tool housing, by driven by motor backup mechanism, make gage beam as umbrella frame from outside oblique the opening of apparatus subject, an end of each gage beam is contacted with the borehole wall, and the gage beam other end is designed to eccentric cam shape, by the translation connecting rod that contacts with it, the angle of caliper logging arm is changed the straight-line displacement that converts connecting rod to.The translation connecting rod passes high pressure sealing ring and enters in the instrument gas-tight silo, removes to drive a slide wire resistor, measures that resistance value can be obtained accordingly and the footpath size.(pressure can reach 100 MPas because the caliper logging instrument will be operated in the down-hole high temperature high pressure severe environment, 150 ℃ of temperature), the erosion of mud and landwaste in addition, simultaneously the appearance and size of instrument is subjected to the restriction of hole capacity, and the movable sealing problem of moving component such as translation connecting rod is never properly settled in the resistance-type caliper logging instrument.The seal member breakage often occurs and cause the feed liquor phenomenon of leakage, cause instrument damage, the maintenance rate height makes the test success rate low, far can not adapt to the needs of on-the-spot caliper logging.
Measure the microelectrode system instrument of borehole wall change in resistance with another kind of special use, it is to utilize the steel spring plate on the tool housing that the connected hard rubber substrate that a plurality of conductive electrodes are housed is pressed on the well bore wall, by the direct measurement that contact realization borehole wall resistivity of microelectrode with the borehole wall.
The utility model content
The utility model utilizes space magnetic induction measurement principle in order to overcome the defective of prior art, makes the caliper logging arm of outside and the electronic sensing type caliper logging tool of a kind of novel structure that the instrument gas-tight silo is kept apart fully.
Another purpose of the present utility model is to provide a kind of will measure the microelectrode system instrument of borehole wall resistivity and electronic sensing type hole diameter microelectrode combination logging tool that the electronic sensor caliper logging tool is combined.
The utility model electronic sensing type hole diameter microelectrode combination logging tool, comprise that the last sealing cap and the gas-tight silo upper end of being with connecting ring are tightly connected, the gas-tight silo lower end is connected with tubular shell, and an end of 4 hole diameter arms is mutually on 90 ° of housings that are hinged on gas-tight silo below respectively; One end of 4 corresponding backup arms is hinged with the middle part of hole diameter arm respectively, and corresponding connector is hinged on the pushing device of the other end and translator, the other end of pushing device and be with the lower seal cap of connecting ring to be tightly connected; Wherein with each hole diameter arm of housing hinged end on the installed inside permanent magnet, in gas-tight silo, on the position corresponding electronic displacement sensor is installed with each permanent magnet, in gas-tight silo, also lay SCM system with the electronic displacement sensor electric connection; The center of any one of hole diameter arm is provided with chute, and connecting rod one end is slidingly connected along chute, and the other end of connecting rod is with that a plurality of microelectrode pole plate one ends are housed is hinged, and the free end of this hole diameter arm and the centre of pole plate are hinged; The pole plate of electronic displacement sensor, SCM system and microelectrode is electrically connected with ground power supply and control recording apparatus by wearing the multicore cable that is on the last sealing cap.
The utility model electronic sensing type hole diameter microelectrode combination logging tool, wherein, SCM system is sent the analog signal of the magnetic induction intensity that each electronic displacement sensor records into single-chip microcomputer after A/D converter converts data signal to, after single-chip microcomputer calls the calibration coefficient that is stored in respective channel in the memory or that pass through the reception of RS232 interface, carrying out data respectively handles, the hole diameter data signal of handling after synthesizing converts analog signal to through D/A converter, exports the control recording apparatus to by cable; The borehole wall resistivity signal that is recorded by the microelectrode pole plate exports the control recording apparatus to by cable.
The utility model electronic sensing type hole diameter microelectrode combination logging tool is broken through traditional design framework, adopts the microelectric technique of space magnetic induction electronic displacement transducer technology and single-chip microcomputer combination, makes the sealing performance of instrument perfectly safe.Have novel structure, reliable and stable, measure the success rate height, be easy to plurality of advantages such as maintenance.Simultaneously, will measure the microelectrode system instrument and the electronic sensing type caliper logging tool of borehole wall resistivity dexterously and combine, make its measurement of once finishing two kinds of parameters, and improve the utilization rate of instrument and measure efficient.
Description of drawings
Fig. 1 is a resistance-type caliper logging instrument principle schematic (part) in the prior art;
Fig. 2 is the utility model electronic sensing type hole diameter microelectrode combination logging tool structural principle schematic diagram;
Fig. 3 is an electronic sensing type hole diameter microelectrode combination logging tool partial structurtes schematic diagram among Fig. 2;
Fig. 4 is the utility model electronic sensing type hole diameter microelectrode combination logging tool schematic block circuit diagram.
The specific embodiment
As shown in Figure 1, resistance-type caliper logging instrument contacts with slide wire resistor owing to the eccentric cam on the hole diameter arm penetrates in the gas-tight silo by the translation connecting rod, and gas-tight silo damages easily or causes measurement result inaccurate.
Fig. 2 and Fig. 3 are the utility model electronic sensing type hole diameter microelectrode combination logging tool structural principle schematic diagram.It comprises that the last sealing cap 1 of being with connecting ring is tightly connected with gas-tight silo 2 upper ends, and gas-tight silo 2 lower ends are connected with tubular shell 3, and an end of 4 hole diameter arms 4 is mutually on 90 ° of housings 3 that are hinged on gas-tight silo 2 belows respectively; One end of 4 corresponding backup arms 5 is hinged with the middle part of hole diameter arm 4 respectively, and corresponding connector is hinged on the pushing device 6 of the other end and translator, the other end of pushing device 6 and be with the lower seal cap 7 of connecting ring to be tightly connected; Said structure and resistance-type caliper logging instrument are basic identical, and pushing device 6 is by the complicated mechanism of motor-driven one cover 4 hole diameter arms 4 to be opened in the groove that contacts or be contracted in housing 3 with the borehole wall synchronously.Wherein with each hole diameter arms 4 of housing 3 hinged ends on installed inside permanent magnet 8, in gas-tight silo 2, on the position corresponding electronic displacement sensor 9 is installed, in gas-tight silo 2, is also laid the SCM system 10 of electronic displacement sensor 9 electric connections with each permanent magnet 8; Whole components and parts of this system are produced on the printed circuit board (PCB); Electronic displacement sensor 9 and SCM system 10 are electrically connected with ground power supply and control recording apparatus by wearing the multicore cable that is on the last sealing cap 1; Constitute the caliper logging part of logging instrument thus.
The borehole wall resistivity measure portion of logging instrument is microelectrode pole plate 13 is installed and is constituted at the free end of any one hole diameter arm 4.It is to be provided with chute 11 at the place, centre of hole diameter arm 4, and connecting rod 12 1 ends are slidingly connected along chute 11, and the other end of connecting rod 12 is hinged with pole plate 13 1 ends that a plurality of microelectrodes are housed, and the centre of the free end of this hole diameter arm 4 and pole plate 13 is hinged.Like this, the pole plate of being made by the hard rubber material 13 can be well and borehole wall even contact.The pole plate 13 of microelectrode is electrically connected with ground power supply and control recording apparatus by wearing the multicore cable that is on the last sealing cap 1, uses special-purpose borehole wall resistivity measuring instrument that pole plate 13 that a plurality of microelectrodes are housed makes with widely use.
Fig. 4 is the utility model electronic sensing type hole diameter microelectrode combination logging tool schematic block circuit diagram.SCM system 10 is sent the analog signal of the magnetic induction intensity that each electronic displacement sensor 9 records into single-chip microcomputer after A/D converter converts data signal to, after single-chip microcomputer calls the calibration coefficient that is stored in respective channel in the memory or that pass through the reception of RS232 interface, carrying out data respectively handles, the hole diameter data signal of handling after synthesizing converts analog signal to through D/A converter, exports the control recording apparatus to by cable; The borehole wall resistivity signal that is recorded by microelectrode pole plate 13 exports the control recording apparatus to by cable.Thereby on an instrument, finish the measurement of drilling well diameter and borehole wall resistivity simultaneously.
Claims (2)
1, a kind of electronic sensing type hole diameter microelectrode combination logging tool, comprise that the last sealing cap (1) of being with connecting ring is tightly connected with gas-tight silo (2) upper end, gas-tight silo (2) lower end is connected with tubular shell (3), and an end of 4 hole diameter arms (4) is mutually on 90 ° of housings (3) that are hinged on gas-tight silo (2) below respectively; One end of corresponding 4 backup arms (5) is hinged with the middle part of hole diameter arm (4) respectively, and the other end is hinged with the last corresponding connector of the pushing device (6) of translator, and the other end of pushing device (6) is tightly connected with the lower seal cap (7) of band connecting ring; It is characterized in that with described each hole diameter arm (4) of described housing (3) hinged end on installed inside permanent magnet (8), in described gas-tight silo (2), on the position corresponding electronic displacement sensor (9) is installed, in described gas-tight silo (2), is also laid SCM system (10) with described electronic displacement sensor (9) electric connection with each described permanent magnet (8); The center of any one of described hole diameter arm (4) is provided with chute (11), connecting rod (12) one ends are slidingly connected along described chute (11), the other end of described connecting rod (12) is hinged with pole plate (13) one ends that a plurality of microelectrodes are housed, and the centre of the free end of this described hole diameter arm (4) and described pole plate (13) is hinged; The pole plate (13) of described electronic displacement sensor (9), SCM system (10) and microelectrode is electrically connected with ground power supply and control recording apparatus by wearing the multicore cable that is on the described upward sealing cap (1).
2, electronic sensing type hole diameter microelectrode combination logging tool according to claim 1, the analog signal that it is characterized in that the magnetic induction intensity that described SCM system (10) records each electronic displacement sensor (9) is sent into single-chip microcomputer after A/D converter converts data signal to, after single-chip microcomputer calls the calibration coefficient that is stored in respective channel in the memory or that pass through the reception of RS232 interface, carrying out data respectively handles, the hole diameter data signal of handling after synthesizing converts analog signal to through D/A converter, exports the control recording apparatus to by cable; The borehole wall resistivity signal that is recorded by microelectrode pole plate (13) exports the control recording apparatus to by cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200583134U CN2753881Y (en) | 2004-12-09 | 2004-12-09 | Electronic-sensing type well-diameter micro electrode combined logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200583134U CN2753881Y (en) | 2004-12-09 | 2004-12-09 | Electronic-sensing type well-diameter micro electrode combined logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753881Y true CN2753881Y (en) | 2006-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200583134U Expired - Fee Related CN2753881Y (en) | 2004-12-09 | 2004-12-09 | Electronic-sensing type well-diameter micro electrode combined logging instrument |
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| CN (1) | CN2753881Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131089B (en) * | 2006-08-23 | 2010-11-03 | 中国石油天然气集团公司 | Push-pull type multi-arm righting hole diameter micrologging instrument |
| CN102094633A (en) * | 2009-12-14 | 2011-06-15 | 西安威尔罗根能源科技有限公司 | Hole caliper for logging diameter of bored shaft |
| CN102168554A (en) * | 2010-12-17 | 2011-08-31 | 中国石油集团长城钻探工程有限公司 | Through-casing resistivity push electrode system of independent supporting arm |
| CN102561987A (en) * | 2012-02-13 | 2012-07-11 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
| CN101403298B (en) * | 2008-11-19 | 2012-07-25 | 陈耕 | Double-driving combination logging probe |
| 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 |
| CN108489810A (en) * | 2018-03-21 | 2018-09-04 | 国网上海市电力公司 | A kind of secondary small line terminal strength test method of electric system |
| CN113203396A (en) * | 2020-09-17 | 2021-08-03 | 金华一纵一横工业设计有限公司 | Thing networking communication equipment slope monitoring early warning device |
-
2004
- 2004-12-09 CN CNU2004200583134U patent/CN2753881Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131089B (en) * | 2006-08-23 | 2010-11-03 | 中国石油天然气集团公司 | Push-pull type multi-arm righting hole diameter micrologging instrument |
| CN101403298B (en) * | 2008-11-19 | 2012-07-25 | 陈耕 | Double-driving combination logging probe |
| CN102094633A (en) * | 2009-12-14 | 2011-06-15 | 西安威尔罗根能源科技有限公司 | Hole caliper for logging diameter of bored shaft |
| CN102168554A (en) * | 2010-12-17 | 2011-08-31 | 中国石油集团长城钻探工程有限公司 | Through-casing resistivity push electrode system of independent supporting arm |
| CN102561987A (en) * | 2012-02-13 | 2012-07-11 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
| CN102561987B (en) * | 2012-02-13 | 2014-05-07 | 吉林大学 | Steam injection thermosensitive expanding and folding type multiple-segment packer |
| 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 |
| CN108489810A (en) * | 2018-03-21 | 2018-09-04 | 国网上海市电力公司 | A kind of secondary small line terminal strength test method of electric system |
| CN113203396A (en) * | 2020-09-17 | 2021-08-03 | 金华一纵一横工业设计有限公司 | Thing networking communication equipment slope monitoring early warning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060125 Termination date: 20101209 |