CN102758615A - High-accuracy smart dual-core well depth measuring device - Google Patents
High-accuracy smart dual-core well depth measuring device Download PDFInfo
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- CN102758615A CN102758615A CN2012102521080A CN201210252108A CN102758615A CN 102758615 A CN102758615 A CN 102758615A CN 2012102521080 A CN2012102521080 A CN 2012102521080A CN 201210252108 A CN201210252108 A CN 201210252108A CN 102758615 A CN102758615 A CN 102758615A
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Abstract
The invention provides a high-accuracy smart dual-core well depth measuring device, comprising a steel wire rope, a pulley, a support, an incremental photoelectric rotary encoder, an electric steel wire rope winch and a depth measurement control center, wherein one end of the steel wire rope is connected to a well measuring probe, while the other end thereof is connected with the electric steel wire rope winch after bypassing partial wheel surface of the pulley from above; the pulley is arranged on the support through a sliding bearing; the incremental photoelectric rotary encoder is in transmission connection with the pulley; at every circle the pulley rotates, the bearing of the incremental photoelectric rotary encoder rotates to output a phase-A pulse signal and a phase-B pulse signal having a phase difference of 90 degrees; and the depth measurement control center comprises a real-time quick measurement processing core for receiving the two pulse signals in real time and performing related processing thereon, a multi-thread processing core and a peripheral input/output and drive unit. The high-accuracy smart dual-core well depth measuring device is used for measuring well depth, hole depth and the like, and is good in instantaneity, high in accuracy, high in efficiency, smart and the like.
Description
Technical field
The present invention relates to the exploration logging technical field, specifically is a kind of high-precision intelligent double-core well depth survey device, is used under the measuring well that the probe degree of depth and other places fathom or length, distance.
Background technology
At present, during the first-class degree of depth of measuring well test, adopting has following mode in the exploration logging process:
1, use the measuring ropes that indicates length mark to measure, manually record is perhaps estimated the degree of depth that measuring ropes is put down, and this method efficient is low, and the depth survey error is big;
2, a kind of in addition, wire rope adopts the sensing circuit of Hall element structure through pulley on the pulley, and its output signal is counted through the C51 single-chip microcomputer, and the C51 single-chip microcomputer also need carry out communication and LED display driver with computer.Because it is limited to make up the general resolution ratio of sensing circuit by Hall element, for example pulley whenever circles, and Hall element output umber of pulse is generally 32, and resolution ratio is obviously on the low side; In addition; Adopt the C51 single-chip microcomputer to carry out step-by-step counting and communication and the degree of depth and show processing simultaneously; C51 single-chip microcomputer operation highest frequency finite sum monokaryon mode can cause the step-by-step counting error very big, because can cause carrying out other operations; When for example carrying out communication, can lose count pulse with computer.Therefore, the depth survey of this kind method misses by a mile.In practical application, if the excessive velocities of wire rope folding and unfolding, it is big that first kind of metering system of depth survey error ratio also wanted, and be very difficult to control.
Therefore, there are problems such as efficient is low, measure error is big, Measurement Resolution is low, use is dumb in existing well depth measurement scheme.
Summary of the invention
The object of the invention is to provide a kind of high-precision intelligent double-core well depth survey device, can solve the above-mentioned technical problem that exists in the prior art, and its efficiency of measurement is high, and measure error is little, and Measurement Resolution is high.
A kind of high-precision intelligent double-core well depth survey device; Comprise wire rope, pulley, support, increment photoelectric rotary encoder, electronic rope winch and depth survey control centre; One end of wire rope connects well-logging probe; Bag is connected with electronic rope winch behind the local wheel face of pulley the other end from the top; Said pulley is arranged on the support through sliding bearing, and increment photoelectric rotary encoder and said pulley are in transmission connection, and pulley whenever rotates a circle; The two-way pulse A that increment photoelectric rotary encoder bearing rotation phase difference output is 90 ° mutually with the B phase pulse signal, depth survey control centre comprises that the measurement processing real-time of going forward side by side the above-mentioned two pulse signals of real-time reception line correlation handling is examined, multithreading process nuclear and peripheral input and output and driver element.
Aforesaid high-precision intelligent double-core well depth survey device; Said quick measurement processing nuclear comprises that filtering removes shake and Shaping Module, counting module, counting input module, count value output module; Said filtering is gone shake and Shaping Module to be used for the executive real-time quick filter and is gone shake and shaping processing; Output counting pulse signal and increment photoelectric rotary encoder direction of rotation signal; The counting module pulse signals adds 1 and perhaps subtracts 1 accumulated counts according to direction of rotation polarity, and the pulse accumulation count value is n; It is prefabricated that said quick measurement processing nuclear adopts the counting input module to carry out through multithreading processing and checking counting initial value, and through the counting output module pulse accumulation count value n is outputed to the multithreading process nuclear, calculates then and show processing.
Aforesaid high-precision intelligent double-core well depth survey device; Said multithreading process nuclear is used to read the pulse accumulation count value n of quick measurement processing nuclear output; And through peripheral input and output and driver element input configuration diameter of pulley D parameter and the increment photoelectric rotary encoder umber of pulse N parameter that whenever rotates a circle, ((π * D)/N) * n calculates real-time deep value Depth through depth calculation formula: depth D epth=.
Aforesaid high-precision intelligent double-core well depth survey device, said peripheral input and output comprise step motor drive unit, display unit, keyboard input block RS232 communication unit, the non-volatile memory cells that is connected with the multithreading process nuclear respectively with driver element; The step motor drive unit is connected with electronic rope winch, and said diameter of pulley D parameter and the increment photoelectric rotary encoder umber of pulse N parameter that whenever rotates a circle adopts the RS232 communication unit to import configuration through the keyboard input block or through upper system; Non-volatile memory cells is used to store the above-mentioned parameter configuration; The real-time deep value Depth that display unit is used for the multithreading process nuclear is calculated shows.
Aforesaid high-precision intelligent double-core well depth survey device, said quick measurement processing nuclear adopts the programmable gate array digital processing chip.
Aforesaid high-precision intelligent double-core well depth survey device, multithreading process nuclear adopt ARM7 single core processor chip.
The two its processing core of intelligence that nuclear of measurement processing real-time among the present invention and multithreading process nuclear have been formed depth survey control centre; Measurement processing nuclear is responsible for the filtering and counting processing of increment photoelectric rotary encoder output signal specially real-time; And this is measurement processing nuclear employing programmable gate array chip real-time, and it is fast that it has processing speed, real-time characteristics; Thereby significantly reduce loss of data and reduced measure error, improved measured real-time property; And multithreading process nuclear chief leading cadre machine is mutual, and real-time requires relatively low, and in the depth survey intellectuality, has powerful advantage.
The present invention compared with prior art; Owing to adopted double-core intelligence calculation process mode, advantage such as have that real-time is good, loss of data is few, measure error is little, Measurement Resolution is high, efficiency of measurement is high, communication port is many, drive controlling is flexible and easy to use.
Description of drawings
Fig. 1 is the wherein machine construction principle sketch map of an embodiment of the present invention;
Fig. 2 is a whole control circuit block diagram of the present invention;
Fig. 3 is the present invention's circuit block diagram of measurement processing nuclear 201 real-time;
Fig. 4 is the circuit block diagram of peripheral input and output of the present invention and driver element 203.
Fig. 5 for the present invention real-time in the measurement processing nuclear 201 filtering go to shake 401 output pulse bandwidth filterings and remove to shake the sketch map with direction identification with Shaping Module;
Fig. 6 is the detailed control circuit block diagram of integral body of the present invention.
Among the figure: 101-wire rope, 102-pulley, 103-support, 104-increment photoelectric rotary encoder; The electronic rope winch of 105-, 106-depth survey control centre, 201-is measurement processing nuclear real-time, 202-multithreading process nuclear; Peripheral input and output of 203-and driver element, 301-step motor drive unit, 302-display unit, 303-keyboard input block; The 304-RS232 communication unit, the 305-non-volatile memory cells, shake and Shaping Module are removed in 401-filtering; The 402-counting module, 403-counts input module, 404-count value output module.
The specific embodiment
To combine the accompanying drawing among the present invention below, the technical scheme among the present invention will be carried out clear, intactly description.
Please refer to Fig. 1; The present invention provides a kind of high-precision intelligent double-core well depth survey device; Comprise wire rope 101, pulley 102, support 103, increment photoelectric rotary encoder 104, electronic rope winch 105 and depth survey control centre 106, increment photoelectric rotary encoder 104 is connected with depth survey control centre 106.Please refer to Fig. 2, said depth survey control centre 106 comprises the nuclear of measurement processing real-time 201 that connects successively, multithreading process nuclear 202, and peripheral input and output and driver element 203.
One end of wire rope 101 connects well-logging probe, and bag is connected with electronic rope winch 105 behind the local wheel face of pulley 102 other end from the top, and wire rope 101 can be by carrying or transfer on the electronic rope winch 105.On wire rope 101, carry or transfer in the process, wire rope 101 drives pulley 102 corresponding rotation forward or reverse; Pulley 102 is arranged on the support 103 through sliding bearing; Increment photoelectric rotary encoder 104 is fixed on the support 103; Increment photoelectric rotary encoder 104 is in transmission connection with pulley 102 through its axle, and pulley 102 whenever rotates a circle and drives increment photoelectric rotary encoder 104 bearings and rotate a circle.Two-way pulse A phase and B phase pulse signal (as shown in Figure 5) that increment photoelectric rotary encoder 104 bearings rotation phase difference output is 90 °; Be connected to measurement processing nuclear 201 real-time; Carry out pulse and go to shake filtering, direction of rotation identification and step-by-step counting etc.; The positive and negative glide direction of confirming above-mentioned pulley 102 through the two-way phase difference; The fundamental length of a corresponding setting of each complete pulse cycle, complete cycle of pulse signal that the two-way phase phasic difference of wherein increment photoelectric rotary encoder 104 outputs is 90 ° just produce an output counting pulse signal; Multithreading process nuclear 202 reads the pulse accumulation count value then; And through peripheral input and output and driver element 203 input configuration pulley 102 diameter D parameters and the increment photoelectric rotary encoder 104 umber of pulse N parameter that whenever rotates a circle; Through depth calculation formula: depth D epth=((π * D)/N) * n; Wherein n is a real-time pulse accumulated counts value, thereby obtains real-time deep value Depth.
Please refer to Fig. 3; Said quick measurement processing nuclear 201 comprise filtering go shake with Shaping Module 401, counting module 402, count input module 403, count value output module 404; Filtering is gone to shake with the output of Shaping Module 401 with increment photoelectric rotary encoder 104 and is connected; Filtering is gone to shake with the output of Shaping Module 401 and is connected with counting module 402, and counting input module 403, count value output module 404 are connected with counting module 402 respectively.
Said quick measurement processing nuclear 201 at first goes shake and Shaping Module 401 executive real-time quick filters to go shake and shaping processing through filtering the pulse signal of 90 ° of the two-way phase phasic differences of increment photoelectric rotary encoder 104 outputs, exports counting pulse signal and increment photoelectric rotary encoder 104 direction of rotation signals; Counting module 402 pulse signals add 1 and perhaps subtract 1 accumulated counts according to direction of rotation polarity then, and the accumulated counts value is n; It is prefabricated that said quick measurement processing nuclear 201 adopts counting input modules 403 to carry out through 202 pairs of countings of multithreading process nuclear initial value, and through counting output module 404 accumulated counts value n is outputed to multithreading process nuclear 202, calculates then and show processing.
Please refer to Fig. 4, said peripheral input and output comprise step motor drive unit 301, display unit 302, keyboard input block 303, RS232 communication unit 304, the non-volatile memory cells 305 that is connected with multithreading process nuclear 202 respectively with driver element 203.The display unit 302 that the real-time deep value Depth that multithreading process nuclear 202 goes out aforementioned calculation delivers to peripheral input and output and driver element 203 shows.Electronic rope winch 105 is connected with step motor drive unit 301, adopts automatic control mode, and its speed is through upper system flexible configuration.Detail circuits block diagram of the present invention sees also Fig. 6.
In the practical implementation of the present invention, pulley 102 diameter D are chosen for 150mm, and the increment photoelectric rotary encoder 104 umber of pulse N selection of parameter that whenever rotates a circle is 1000.These two parameters adopt keyboard input block 303 or adopt RS232 communication unit 304 to import configuration through upper system.This parameter configuration deposits non-volatile memory cells 305 in through multithreading process nuclear 202 after accomplishing, and powering in next time can need not to dispose once more when using.
According to the above-mentioned parameter of choosing, then the resolution ratio of well depth survey is (π * D)/N, i.e. 0.471mm; The increment photoelectric rotary encoder 104 corresponding degree of depth that whenever rotates a circle is 471mm, i.e. 0.471m.
For well depth survey, need adopt RS232 communication unit 304 to carry out the initial value configuration of well depth through keyboard input block 303 or through upper system.
The present invention in force, well-logging probe is when the well head of a well depth 80m, it is 0 that ID is set, and transfers to then near the shaft bottom, the demonstration depth-logger is 79.523m, and then on move well head to, the demonstration depth-logger is 0.001m.Through repeatedly transfer repeatedly the probe and on draw the probe carry out well depth survey, have uniformity.This well depth survey resolution ratio, certainty of measurement accuracy satisfy the well depth survey requirement.
The present invention in force; Adopt electronic rope winch 105 automatic control modes; Through keyboard input block 303 or through upper system adopt RS232 communication unit 304 to carry out that well-logging probe is transferred and the configuration of last pulling rate degree after; Well depth survey will be carried out automatically, need not manual intervention, improve well depth survey efficient.
What optical rotary encoder of the present invention adopted is increment photoelectric rotary encoder 104; So for the not restriction of well depth survey depth capacity, and in the present invention implements, limit through program, limiting the most deeply, degree is 999.999m; Effectively show minimum 1mm, i.e. 0.001m.
Said quick measurement processing nuclear 201 can adopt the programmable gate array digital processing chip, and multithreading process nuclear 202 can adopt ARM7 single core processor chip.
The present invention in force, the field operation of holing in the open air, well depth survey does not receive the influence of surrounding environment, has the anti-interference characteristics.The present invention is also applicable to other place measuring distance or length.
The above; Be merely the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who belongs to the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. high-precision intelligent double-core well depth survey device; It is characterized in that: comprise wire rope (101), pulley (102), support (103), increment photoelectric rotary encoder (104), electronic rope winch (105) and depth survey control centre (106); One end of wire rope (101) connects well-logging probe; Bag is connected with electronic rope winch (105) behind the local wheel face of pulley (102) other end from the top; Said pulley (102) is arranged on the support (103) through sliding bearing; Increment photoelectric rotary encoder (104) is in transmission connection with said pulley (102); Pulley (102) whenever rotates a circle, the two-way pulse A that increment photoelectric rotary encoder (104) bearing rotation phase difference output is 90 ° mutually with the B phase pulse signal, depth survey control centre (106) comprises that the measurement processing real-time of going forward side by side the above-mentioned two pulse signals of real-time reception line correlation handling examines (201), multithreading process nuclear (202) and peripheral input and output and driver element (203).
2. high-precision intelligent double-core well depth survey device as claimed in claim 1; It is characterized in that: said quick measurement processing nuclear (201) comprise filtering go shake with Shaping Module (401), counting module (401), count input module (403), count value output module (404); Said filtering is gone shake and Shaping Module (401) to be used for the executive real-time quick filter and is gone shake and shaping processing; Output counting pulse signal and increment photoelectric rotary encoder (104) direction of rotation signal; Counting module (402) pulse signals adds 1 and perhaps subtracts 1 accumulated counts according to direction of rotation polarity, and the pulse accumulation count value is n; Said quick measurement processing nuclear (201) adopts counting input module (403) to carry out prefabricated through multithreading process nuclear (202) to the counting initial value; And pulse accumulation count value n is outputed to multithreading process nuclear (202) through counting output module (404), calculate then and show processing.
3. high-precision intelligent double-core well depth survey device as claimed in claim 2; It is characterized in that: said multithreading process nuclear (202) is used to read the pulse accumulation count value n of quick measurement processing nuclear (201) output; And through peripheral input and output and driver element (203) input configuration pulley (102) diameter D parameter and increment photoelectric rotary encoder (104) the umber of pulse N parameter that whenever rotates a circle, ((π * D)/N) * n calculates real-time deep value Depth through depth calculation formula: depth D epth=.
4. high-precision intelligent double-core well depth survey device as claimed in claim 3 is characterized in that: said peripheral input and output comprise step motor drive unit (301), display unit (302), keyboard input block (303), RS232 communication unit (304), the non-volatile memory cells (305) that is connected with multithreading process nuclear (202) respectively with driver element (203); Step motor drive unit (301) is connected with electronic rope winch (105), and said pulley (102) diameter D parameter and increment photoelectric rotary encoder (104) the umber of pulse N parameter that whenever rotates a circle is imported configuration through keyboard input block (303) or through upper system employing RS232 communication unit (304); Non-volatile memory cells (305) is used to store the above-mentioned parameter configuration; The real-time deep value Depth that display unit (302) is used for multithreading process nuclear (202) is calculated shows.
5. high-precision intelligent double-core well depth survey device as claimed in claim 1 is characterized in that: said quick measurement processing nuclear (201) adopts the programmable gate array digital processing chip.
6. high-precision intelligent double-core well depth survey device as claimed in claim 1 is characterized in that: multithreading process nuclear (202) adopts ARM7 single core processor chip.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103152016A (en) * | 2012-12-21 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Shaping method and circuit for photoelectricity code circuit output signal |
| CN103174410A (en) * | 2013-03-08 | 2013-06-26 | 吉艾科技（北京）股份公司 | Method for achieving time and depth conversion through weight change of downhole instrument tool |
| CN103452545A (en) * | 2013-08-22 | 2013-12-18 | 淮南矿业(集团)有限责任公司 | Well depth measuring device |
| CN103541726A (en) * | 2013-11-07 | 2014-01-29 | 中国人民解放军重庆通信学院 | Well depth measuring device |
| CN104074510A (en) * | 2014-07-11 | 2014-10-01 | 山河智能装备股份有限公司 | Depth detecting device for drilling machine |
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| CN106567707A (en) * | 2016-12-02 | 2017-04-19 | 湘潭大学 | Real-time automatic sonic logging method and system |
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| CN111895891A (en) * | 2020-09-03 | 2020-11-06 | 青田昙正测量仪器有限公司 | Portable depth measuring equipment |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190868A (en) * | 1976-10-26 | 1980-02-26 | Schlumberger Technology Corporation | Method and apparatus for automatically inscribing magnetic marks on a wireline |
| CN1609562A (en) * | 2004-10-28 | 2005-04-27 | 山东科技大学 | Depth measuring instrument |
| CN2799860Y (en) * | 2005-05-26 | 2006-07-26 | 长沙中联重工科技发展股份有限公司 | Rotary drilling rig bit depth detector |
| CN2924002Y (en) * | 2006-04-17 | 2007-07-18 | 田文广 | Well-drilling depth measuring device |
| GB2446986A (en) * | 2006-02-15 | 2008-08-27 | Schlumberger Holdings | Determining the length of an electrical cable deployed into a well |
| US20090248307A1 (en) * | 2005-12-14 | 2009-10-01 | Schlumberger Technology Corporation | Methods and systems for robust and accurate determination of wireline depth in a borehole |
| CN101881133A (en) * | 2010-06-21 | 2010-11-10 | 北京市三一重机有限公司 | Rotary drilling rig and deep sounding apparatus thereof |
| CN102182451A (en) * | 2011-05-31 | 2011-09-14 | 中国电子科技集团公司第二十二研究所 | Oil logging depth measurement device |
| CN202266255U (en) * | 2011-08-29 | 2012-06-06 | 天津市泰华科技有限公司 | Device for realizing depth measurement in petroleum well logging system |
| CN202707039U (en) * | 2012-07-20 | 2013-01-30 | 长江勘测规划设计研究有限责任公司 | High-precision intelligent double-core well depth measuring device |
-
2012
- 2012-07-20 CN CN201210252108.0A patent/CN102758615B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190868A (en) * | 1976-10-26 | 1980-02-26 | Schlumberger Technology Corporation | Method and apparatus for automatically inscribing magnetic marks on a wireline |
| CN1609562A (en) * | 2004-10-28 | 2005-04-27 | 山东科技大学 | Depth measuring instrument |
| CN2799860Y (en) * | 2005-05-26 | 2006-07-26 | 长沙中联重工科技发展股份有限公司 | Rotary drilling rig bit depth detector |
| US20090248307A1 (en) * | 2005-12-14 | 2009-10-01 | Schlumberger Technology Corporation | Methods and systems for robust and accurate determination of wireline depth in a borehole |
| GB2446986A (en) * | 2006-02-15 | 2008-08-27 | Schlumberger Holdings | Determining the length of an electrical cable deployed into a well |
| CN2924002Y (en) * | 2006-04-17 | 2007-07-18 | 田文广 | Well-drilling depth measuring device |
| CN101881133A (en) * | 2010-06-21 | 2010-11-10 | 北京市三一重机有限公司 | Rotary drilling rig and deep sounding apparatus thereof |
| CN102182451A (en) * | 2011-05-31 | 2011-09-14 | 中国电子科技集团公司第二十二研究所 | Oil logging depth measurement device |
| CN202266255U (en) * | 2011-08-29 | 2012-06-06 | 天津市泰华科技有限公司 | Device for realizing depth measurement in petroleum well logging system |
| CN202707039U (en) * | 2012-07-20 | 2013-01-30 | 长江勘测规划设计研究有限责任公司 | High-precision intelligent double-core well depth measuring device |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152016A (en) * | 2012-12-21 | 2013-06-12 | 贵州航天凯山石油仪器有限公司 | Shaping method and circuit for photoelectricity code circuit output signal |
| CN103174410B (en) * | 2013-03-08 | 2016-12-28 | 吉艾科技（北京）股份公司 | Method for achieving time and depth conversion through weight change of downhole instrument tool |
| CN103174410A (en) * | 2013-03-08 | 2013-06-26 | 吉艾科技（北京）股份公司 | Method for achieving time and depth conversion through weight change of downhole instrument tool |
| CN103452545A (en) * | 2013-08-22 | 2013-12-18 | 淮南矿业(集团)有限责任公司 | Well depth measuring device |
| CN103452545B (en) * | 2013-08-22 | 2016-02-03 | 淮南矿业(集团)有限责任公司 | Well depth survey device |
| CN103541726A (en) * | 2013-11-07 | 2014-01-29 | 中国人民解放军重庆通信学院 | Well depth measuring device |
| CN104074510A (en) * | 2014-07-11 | 2014-10-01 | 山河智能装备股份有限公司 | Depth detecting device for drilling machine |
| CN104261219A (en) * | 2014-09-19 | 2015-01-07 | 济南重工股份有限公司 | Sinking winch running speed and depth detection device |
| CN106640056A (en) * | 2015-12-03 | 2017-05-10 | 湘潭大学 | Automatic acoustic wave logging instrument and method |
| CN105484737A (en) * | 2015-12-03 | 2016-04-13 | 湘潭大学 | Automatic acoustic logging instrument and method |
| CN106567707A (en) * | 2016-12-02 | 2017-04-19 | 湘潭大学 | Real-time automatic sonic logging method and system |
| CN106567707B (en) * | 2016-12-02 | 2019-12-20 | 湘潭大学 | Logging method for real-time automatic acoustic detection by using logging system |
| CN110637146A (en) * | 2017-04-17 | 2019-12-31 | 斯伦贝谢技术有限公司 | Method for motion measurement of an instrument in a borehole |
| CN110637146B (en) * | 2017-04-17 | 2024-03-26 | 斯伦贝谢技术有限公司 | Method for motion measurement of instruments in a wellbore |
| CN109577951A (en) * | 2018-10-16 | 2019-04-05 | 山西晋城无烟煤矿业集团有限责任公司 | With drilling well depth measuring device |
| CN109577951B (en) * | 2018-10-16 | 2022-05-17 | 山西晋城无烟煤矿业集团有限责任公司 | Well depth measuring device while drilling |
| CN109854228A (en) * | 2019-02-28 | 2019-06-07 | 东华理工大学 | A kind of geophysical log instrument of the oil exploration convenient for control |
| CN111895891A (en) * | 2020-09-03 | 2020-11-06 | 青田昙正测量仪器有限公司 | Portable depth measuring equipment |
| CN111895891B (en) * | 2020-09-03 | 2021-03-26 | 济南言唐工程技术咨询有限公司 | Portable depth measuring equipment |
| CN113944457A (en) * | 2021-09-26 | 2022-01-18 | 浙江省工程勘察设计院集团有限公司 | Drill rod detection method, drilling depth automatic measurement method and system and drilling machine |
| CN113944457B (en) * | 2021-09-26 | 2024-02-13 | 浙江省工程勘察设计院集团有限公司 | Drill rod detection method, drilling depth automatic measurement method, system and drilling machine |
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