CN102733798A - Underground ropeless testing system for oil well - Google Patents
Underground ropeless testing system for oil well Download PDFInfo
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- CN102733798A CN102733798A CN2012101540629A CN201210154062A CN102733798A CN 102733798 A CN102733798 A CN 102733798A CN 2012101540629 A CN2012101540629 A CN 2012101540629A CN 201210154062 A CN201210154062 A CN 201210154062A CN 102733798 A CN102733798 A CN 102733798A
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- underground
- electromagnetic wave
- downhole testing
- magnetic
- sensor groups
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- 238000012360 testing method Methods 0.000 title claims abstract description 81
- 239000003129 oil well Substances 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The embodiment of the invention provides an underground ropeless testing system for an oil well. The underground ropeless testing system comprises a wireless tester and a self-generating set, wherein the wireless tester comprises an underground tester, a sensor group, an underground test end circuit and an electromagnetic wave transmitter, wherein the sensor group is arranged on the underground tester, the underground test end circuit is connected with the sensor group and used for amplifying and converting production data collected by the sensor group; and the electromagnetic wave transmitter is connected with the underground test end circuit, and used for transmitting the processed production data to a ground processing system. The sensor group, the underground test end circuit and the electromagnetic wave transmitter are arranged on the underground tester, thus ropeless directly-reading test of underground production data of a pumping machine is realized, and the problems of high cost and large construction difficulty existing in the prior art are solved.
Description
Technical field
The present invention about oil well down-hole direct-reading measurement technology, is that a kind of oil well down-hole does not have the cable test system particularly about oil field underground monitoring technology concretely.
Background technology
Along with the continuous development of oil field technology, crude oil production technology increases day by day.In the oil field development manufacturing process; Particularly in the manufacturing process of some emphasis wells; Need gather in real time creation datas such as the temperature of down-hole, pressure, flows through the downhole testing instrument, to monitoring in real time the down-hole, so that oil reservoir is carried out dynamic evaluation.
Down-hole of the prior art direct-reading measurement technology is generally carried out through following mode: in the underground work process, the tester of down-hole is lowered to pump, and with logging cable with the mode of binding with oil pipe together in the lower going-into-well.There is following defective in above-mentioned down-hole direct-reading measurement technology: because the logging cable after the test completion can not reuse, therefore cause the cost of production of whole down-hole direct-reading system high; Owing to need in the direct-reading measurement technology to rely on logging cable, and phenomenons such as card breaks take place in logging cable easily in operation process, have caused the defective that the work operations amount is big, safety reduces for whole direct-reading measurement process.
Summary of the invention
The embodiment of the invention provides a kind of oil well down-hole not have the cable test system; Through sensor groups, downhole testing terminal circuit and electromagnetic wave launcher are set on the downhole testing appearance; Realize the no cable direct reading test of creation data under the rod-pumped well, solved the cost height and the big problem of difficulty of construction that exist in the prior art.
The objective of the invention is, provide a kind of oil well down-hole not have the cable test system, comprise wireless test device and self-generating device,
Wherein, described wireless test device comprises: downhole testing appearance 2 is used for the creation data of down-hole is monitored in real time;
Be arranged on the sensor groups 11 on the described downhole testing appearance 2, be used to gather the creation data of described downhole testing appearance 2;
With the downhole testing terminal circuit 3 that described sensor groups 11 is connected, be used for the creation data that described sensor groups 11 is gathered amplify, conversion process;
With the electromagnetic wave launcher 17 that described downhole testing end line 3 is connected, be used for the creation data transmission Ground Processing System 12 after handling;
Set inside has the no magnetic holder tube 4 of described sensor groups 11, downhole testing terminal circuit 3 and electromagnetic wave launcher 17;
Be connected the oil well pump 5 and the oil pipe tubing string 8 of described no magnetic holder tube 4 upper ends;
Described self-generating device comprises: be connected the no magnetic oil pipe 15 of described no magnetic holder tube 4 upper ends, coil groups 6 equidistantly is wrapped in the outside of no magnetic oil pipe 15;
With the device for converting electric energy 16 that described downhole testing terminal circuit 3, sensor groups 11 and electromagnetic wave launcher 17 are connected, be used for to described downhole testing terminal circuit 3, sensor groups 11 and electromagnetic wave launcher 17 power supplies;
The magnetic sucker rod 7 that is connected with oil pumper 10, it is provided with sucker rod 14.
Beneficial effect of the present invention is; Through sensor groups, downhole testing terminal circuit and electromagnetic wave launcher are set on the downhole testing appearance; Electromagnetic wave is transmitted into Ground Processing System with the form of carrier wave through the stratum with the creation data of downhole testing appearance collection; And then realized the no cable direct reading test of creation data under the rod-pumped well, solved the cost height and the big problem of difficulty of construction that exist in the prior art.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of oil well down-hole that Fig. 1 provides for the embodiment of the invention does not have the structural representation of cable test system;
A kind of oil well down-hole that Fig. 2 provides for the embodiment of the invention does not have the structure diagram of magnetic sucker rod in the cable test system;
A kind of oil well down-hole that Fig. 3 provides for the embodiment of the invention does not have the schematic diagram of downhole testing terminal circuit in the cable test system;
A kind of oil well down-hole that Fig. 4 provides for the embodiment of the invention does not have the structural representation of electromagnetic wave launcher in the cable test system;
A kind of oil well down-hole that Fig. 5 provides for the embodiment of the invention does not have the structural representation of Ground Processing System in the cable test system.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A kind of oil well down-hole that Fig. 1 provides for the embodiment of the invention does not have the structural representation of cable test system, can be known by Fig. 1, and the embodiment of the invention provides a kind of oil well down-hole not have the cable test system to comprise wireless test device and self-generating device,
Wherein, described wireless test device comprises: downhole testing appearance 2 is used for the creation data of down-hole is monitored in real time.In the practical application of oil well underground work, be arranged on the sensor groups 11 on the described downhole testing appearance 2, be used to gather the creation data of described downhole testing appearance 2.In the practical application of oil well underground work, creation data generally comprises data such as the temperature, pressure, flow of down-hole.
With the downhole testing terminal circuit 3 that described sensor groups 11 is connected, be used for the creation data that described sensor groups 11 is gathered amplify, conversion process.Fig. 3 is the schematic diagram of downhole testing terminal circuit, can be known by Fig. 3, and the downhole testing terminal circuit is to be the direct-reading data acquisition circuit of core with the Pic single-chip microcomputer.The Pic single-chip microcomputer is to carrying out the A/D conversion from the sensor signal of RA0-RA3 (signal to be collected can be expanded) input.Result after the conversion is from the TX (RB0 pin) of pic single-chip microcomputer output, and TX is connected to signal and sends to driver module (MOS switch), and signal is coupled on the external cable of 12v, and is connected to form with electromagnetic wave down-hole receiving system and communicates by letter.C3, R9, R10, R12, C4 and comparator also can constitute signal receiving circuit, take out the signal on the electromagnetic wave short distance cable but receive circuit, are input to the Pic single-chip microcomputer from RX (RB1 pin).
With the electromagnetic wave launcher 17 that described downhole testing end line 3 is connected, be used for the creation data transmission Ground Processing System 12 after handling.Theoretical according to the electromagnetic wave wireless transmission, electromagnetic wave launcher 17 is transferred to Ground Processing System with creation data under specific frequency.Fig. 4 is the structural representation of electromagnetic wave launcher; Can know by Fig. 4; Electromagnetic wave launcher 17 comprises emission interface 171, digital to analog converter 172, power amplifier 173, encoder 174, underground signal transmitting antenna 175; Wherein, the signal that described emission interface is gathered downhole testing appearance 2 is sent in the electromagnetic wave launcher, after digital to analog converter, power amplifier are handled; Encode by encoder, under a certain CF, (can be between 5Hz ~ 35Hz in the specific embodiment) and be sent to Ground Processing System 12 by the underground signal transmitting antenna.
Fig. 5 is the structural representation of Ground Processing System; Can know that by Fig. 5 described Ground Processing System 12 comprises ground signal reception antenna 121, ground signal digital to analog converter 122, ground power amplifier 123, wave filter 124, decoder 125, changeover switch 126 and data processor 127.After the ground signal reception antenna receives underground signal; By ground signal amplifier, ground signal digital to analog converter and wave filter to this signal amplify, the operation of digital-to-analogue conversion, filtering and decoding; Signal be sent to by data processor and handle, obtain required downhole testing data thereafter.
Described wireless test device comprises that also set inside has the no magnetic holder tube 4 of described sensor groups 11, downhole testing terminal circuit 3 and electromagnetic wave launcher 17;
Be connected the oil well pump (5) and the oil pipe tubing string (8) of described no magnetic holder tube (4) upper end.
Described self-generating device comprises: be connected the no magnetic oil pipe (15) of described no magnetic holder tube (4) upper end, coil groups (6) equidistantly is wrapped in the outside of no magnetic oil pipe (15).In concrete embodiment, coil groups 6 can be the multiturn copper coil.
With the device for converting electric energy 16 that described downhole testing terminal circuit 3, sensor groups 11 and electromagnetic wave launcher 17 are connected, be used for to described downhole testing terminal circuit 3, sensor groups 11 and electromagnetic wave launcher 17 power supplies.Device for converting electric energy has brush-commutated function and storage function simultaneously.
The magnetic sucker rod 7 that is connected with oil pumper 10, it is provided with sucker rod 14.
Can know that by Fig. 1 the oil well down-hole does not have the cable test system except above-mentioned parts, also comprise the perforation pipeline section 1 that is arranged on the sleeve pipe 9.
A kind of oil well down-hole that Fig. 2 provides for the embodiment of the invention does not have the structure diagram of magnetic sucker rod in the cable test system; Can know by Fig. 2; The two ends of described magnetic sucker rod 7 are provided with connecting thread 19; Described connecting thread 19 is provided with centralizer 18, and described magnetic sucker rod 7 is provided with permanent magnet 20.As shown in Figure 2, in concrete embodiment, described magnetic sucker rod 7 can be used the magnetic paraffin control device for oil well; Permanent magnet 20 is set on this device; Permanent magnet 20 materials are neodymium iron boron or Rare-Earth Cobalt, and its Surface field intensity is more than the 5000GS, and magnetic oil pumping rod centering device 18 is installed on the two ends of magnetic sucker rod 7 connecting thread 19; Anti-stopping bar, pipe eccentric wear, this device play the effect of cutting magnetic line (generating) and oil well paraffin prevention and absorption iron filings simultaneously in the down-hole.
As shown in Figure 1; The magnetic oil pumping rod centering device of installing on the magnetic sucker rod 7 18 is lowered into a precalculated position, and promptly the multiturn copper coil 6 on assurance and the no magnetic oil pipe 15 has certain relative travel, and sucker rod 14 is installed on the magnetic sucker rod 7; In the motion process that oil pumper 10 carries out up and down reciprocatingly; Drive 7 motions of magnetic sucker rod, thereby cause that the magnetic field intensity in the multiturn copper coil 6 changes, 11 is well head among Fig. 1.Under the effect of device for converting electric energy 16, send the electric energy that produces to sensor groups 11 and electromagnetic wave launcher 17.After the signal process amplification that downhole testing terminal circuit 3 is gathered sensor groups 11, the conversion process; Utilize the electromagnetic wave wireless transmission theoretical; Through electromagnetic wave launcher 17 under particular transmit frequency; Via being sent in the Ground Processing System 12 behind no magnetic holder tube 4, perforation pipeline section 1, stratum and the antenna 13, and then realize downhole testing result's no cable transmission and direct-reading measurement.
The present invention can realize the no cable of downhole production data, accurate, online transmission; Test macro can reuse; Having effectively reduced the production operation cost, is 1000m by the average pump degree of depth down, and the cost of 28 yuan/m of downhole testing cable calculates; Every mouthful of well can be practiced thrift nearly more than 30000 yuan of direct cost, has reduced the activity duration simultaneously, has reduced workman's operation intensity.
In sum; Useful achievement of the present invention is: through sensor groups, downhole testing terminal circuit and electromagnetic wave launcher are set on the downhole testing appearance; Realize the no cable direct reading test of creation data under the rod-pumped well, solved the cost height and the big problem of difficulty of construction that exist in the prior art.
Advantage of the present invention is:
1. the winding around group of the no magnetic oil pipe equal intervals on oil well pump creatively; Supporting sucker rod is the magnetic sucker rod; The characteristics and the electromagnetic induction principle that utilize rod-pumped well to pump; Designed a kind of self-generating device that electric energy can be provided for downhole testing appearance and electromagnetic wave launcher, not having the cable test system for the oil well down-hole provides the electric energy input.
2. sensor groups, downhole testing terminal circuit and electromagnetic wave launcher creatively are set on the downhole testing appearance; Electromagnetic wave is transmitted into Ground Processing System with the form of carrier wave through the stratum with the creation data of downhole testing appearance collection; Realize the no cable direct reading test of creation data under the rod-pumped well, solved the cost height and the big problem of difficulty of construction that exist in the prior art.
Used specific embodiment among the present invention principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. an oil well down-hole does not have the cable test system, it is characterized in that, described system comprises wireless test device and self-generating device,
Wherein, described wireless test device comprises:
Downhole testing appearance (2) is used for the creation data of down-hole is monitored in real time;
Be arranged on the sensor groups (11) on the described downhole testing appearance (2), be used to gather the creation data of described downhole testing appearance (2);
The downhole testing terminal circuit (3) that is connected with described sensor groups (11), be used for the creation data that described sensor groups (11) is gathered amplify, conversion process;
The electromagnetic wave launcher (17) that is connected with described downhole testing end line (3) is used for the creation data transmission Ground Processing System (12) after handling;
Set inside has the no magnetic holder tube (4) of described sensor groups (11), downhole testing terminal circuit (3) and electromagnetic wave launcher (17);
Be connected the oil well pump (5) and the oil pipe tubing string (8) of described no magnetic holder tube (4) upper end;
Described self-generating device comprises: be connected the no magnetic oil pipe (15) of described no magnetic holder tube (4) upper end, coil groups (6) equidistantly is wrapped in the outside of no magnetic oil pipe (15);
With the device for converting electric energy (16) that described downhole testing terminal circuit (3), sensor groups (11) and electromagnetic wave launcher (17) are connected, be used for to described downhole testing terminal circuit (3), sensor groups (11) and electromagnetic wave launcher (17) power supply;
The magnetic sucker rod (7) that is connected with oil pumper (10), it is provided with sucker rod (14).
2. system according to claim 1 is characterized in that, described wireless test device also comprises the perforation pipeline section (1) that is arranged on the sleeve pipe (9).
3. system according to claim 1 is characterized in that, the two ends of described magnetic sucker rod (7) are provided with connecting thread (19).
4. system according to claim 3 is characterized in that, described connecting thread (19) is provided with centralizer (18).
5. system according to claim 4 is characterized in that, described magnetic sucker rod (7) is provided with permanent magnet (20).
6. system according to claim 1 is characterized in that, described electromagnetic wave launcher (17) comprises emission interface, digital to analog converter, power amplifier, encoder, underground signal transmitting antenna.
7. system according to claim 1 is characterized in that, described Ground Processing System (12) comprises ground signal reception antenna, ground signal digital to analog converter, ground power amplifier, wave filter, decoder, changeover switch and data processor.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210154062.9A CN102733798B (en) | 2012-05-17 | 2012-05-17 | Underground ropeless testing system for oil well |
PCT/CN2013/072687 WO2013170654A1 (en) | 2012-05-17 | 2013-03-15 | Underground cableless test system of oil well |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210154062.9A CN102733798B (en) | 2012-05-17 | 2012-05-17 | Underground ropeless testing system for oil well |
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CN102733798A true CN102733798A (en) | 2012-10-17 |
CN102733798B CN102733798B (en) | 2015-07-08 |
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CN201210154062.9A Active CN102733798B (en) | 2012-05-17 | 2012-05-17 | Underground ropeless testing system for oil well |
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WO (1) | WO2013170654A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013170654A1 (en) * | 2012-05-17 | 2013-11-21 | 中国石油天然气股份有限公司 | Underground cableless test system of oil well |
CN106950277A (en) * | 2017-03-29 | 2017-07-14 | 中国海洋石油总公司 | The drilling rod or Magnetic Flux Leakage Equipment for Oil Pipe Testing and detection method of a kind of marine jack rabbit formula |
CN107130957A (en) * | 2016-02-26 | 2017-09-05 | 中国石油化工股份有限公司 | A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system |
CN108547600A (en) * | 2018-04-18 | 2018-09-18 | 吉林大学 | A method of the exploitation of gas hydrate in the way of electromagnetic heating |
CN112855117A (en) * | 2021-01-14 | 2021-05-28 | 大庆油田有限责任公司 | High-durability and readable-back wireless radio frequency downhole multilayer test pipe column |
CN113338918A (en) * | 2020-03-03 | 2021-09-03 | 中国石油天然气股份有限公司 | Data transmission system and method for rod pump rod-pumped well |
CN115680633A (en) * | 2022-12-30 | 2023-02-03 | 中国石油天然气股份有限公司 | Information transmission device and information transmission method for oil production well |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110608035A (en) * | 2019-10-25 | 2019-12-24 | 武汉三江航天远方科技有限公司 | Testing system and method for wireless transmission of downhole data of oil well |
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CN201232545Y (en) * | 2008-06-11 | 2009-05-06 | 中国石油集团钻井工程技术研究院 | Downhole wireless electromagnetical signal radiation apparatus while drilling |
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CN2935614Y (en) * | 2006-07-18 | 2007-08-15 | 中国石油天然气股份有限公司 | Underground generator for well pumping unit |
CN102251769A (en) * | 2011-06-08 | 2011-11-23 | 刘新元 | Electromagnetic wave signal transmission method and system of measurement while drilling |
CN102733798B (en) * | 2012-05-17 | 2015-07-08 | 中国石油天然气股份有限公司 | Underground ropeless testing system for oil well |
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2012
- 2012-05-17 CN CN201210154062.9A patent/CN102733798B/en active Active
-
2013
- 2013-03-15 WO PCT/CN2013/072687 patent/WO2013170654A1/en active Application Filing
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CN2395614Y (en) * | 1999-09-30 | 2000-09-13 | 孟凡刚 | Bottom block for regulating height of desk |
CN201232545Y (en) * | 2008-06-11 | 2009-05-06 | 中国石油集团钻井工程技术研究院 | Downhole wireless electromagnetical signal radiation apparatus while drilling |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013170654A1 (en) * | 2012-05-17 | 2013-11-21 | 中国石油天然气股份有限公司 | Underground cableless test system of oil well |
CN107130957A (en) * | 2016-02-26 | 2017-09-05 | 中国石油化工股份有限公司 | A kind of Oil/gas Well downhole monitoring system and the confession method for electrically for the monitoring system |
CN106950277A (en) * | 2017-03-29 | 2017-07-14 | 中国海洋石油总公司 | The drilling rod or Magnetic Flux Leakage Equipment for Oil Pipe Testing and detection method of a kind of marine jack rabbit formula |
CN108547600A (en) * | 2018-04-18 | 2018-09-18 | 吉林大学 | A method of the exploitation of gas hydrate in the way of electromagnetic heating |
CN108547600B (en) * | 2018-04-18 | 2020-02-18 | 吉林大学 | Method for exploiting natural gas hydrate by utilizing electromagnetic heating mode |
CN113338918A (en) * | 2020-03-03 | 2021-09-03 | 中国石油天然气股份有限公司 | Data transmission system and method for rod pump rod-pumped well |
CN112855117A (en) * | 2021-01-14 | 2021-05-28 | 大庆油田有限责任公司 | High-durability and readable-back wireless radio frequency downhole multilayer test pipe column |
CN115680633A (en) * | 2022-12-30 | 2023-02-03 | 中国石油天然气股份有限公司 | Information transmission device and information transmission method for oil production well |
Also Published As
Publication number | Publication date |
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CN102733798B (en) | 2015-07-08 |
WO2013170654A1 (en) | 2013-11-21 |
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