CN207093071U - A kind of nearly bit measuring instrument with gamma survey function - Google Patents
A kind of nearly bit measuring instrument with gamma survey function Download PDFInfo
- Publication number
- CN207093071U CN207093071U CN201720820158.2U CN201720820158U CN207093071U CN 207093071 U CN207093071 U CN 207093071U CN 201720820158 U CN201720820158 U CN 201720820158U CN 207093071 U CN207093071 U CN 207093071U
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- groove
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- measuring instrument
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- shell
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Abstract
The utility model discloses a kind of nearly bit measuring instrument with gamma survey function, it is installed between helicoid hydraulic motor and drill bit, including shell, battery module, electronic module, gamma survey module and azimuthal measurement module are provided with the shell, transmitting antenna is installed on the shell, is communicated wirelessly between the reception antenna above the transmitting antenna and the helicoid hydraulic motor.The nearly bit measuring instrument can be in drilling process in real-time measurement stratum gamma data, compared with prior art, its is compact-sized, length is shorter, measurement position apart from drill bit closer to, the accuracy of measurement is substantially increased, makes engineer's judging early, instructs drilling well.
Description
Technical field
The utility model belongs to well logging field, and in particular to a kind of nearly drill bit measuring instrument with gamma survey function
Device.
Background technology
In the drilling engineerings such as oil, mine, geological prospecting, it is desirable to make wellbore trace more accurately will according to engineering design
Drilling is sought, grasp formation information identification oil sheet promptly and accurately improves drilling efficiency, and formation information is transferred in real time
Ground.So, engineers and technicians can be just made to understand the change of well track and formation information in time.
Traditional well logging gamma instrument inserts oriented detection sensor, Ran Houlian typically on its own instrument pipe nipple
It is connected on well logging downhole instrument string.But it can be found that well logging gamma instrument has 10 from drill bit from actual implement
More meters of distance, this can cause metrical information to lag, and therefore, when finding oil reservoir, often drill bit has advanced very long one section
Distance, now, new stratum is already by mud contamination so that the accuracy of the formation information measured substantially reduces.
Utility model content
The purpose of this utility model is to provide a kind of nearly bit measuring instrument with gamma survey function, the instrument energy
Gamma data in enough measurement stratums real-time in drilling process, compared with prior art, its is compact-sized, length is shorter, surveys
Positional distance drill bit is measured closer to substantially increasing the accuracy of measurement, make engineer's judging early, instruct drilling well.
The purpose of this utility model is achieved through the following technical solutions：
A kind of nearly bit measuring instrument with gamma survey function, is installed between helicoid hydraulic motor and drill bit, including outer
Shell, battery module, electronic module, gamma survey module and azimuthal measurement module are provided with the shell, is pacified on the shell
Equipped with transmitting antenna, communicated wirelessly between the reception antenna above the transmitting antenna and the helicoid hydraulic motor.
Further, the first groove, the second groove, the 3rd groove and the 4th groove are offered on the shell, described
One groove, second groove, the 3rd groove and the 4th groove are described along the circumferentially evenly distributed setting of the shell
First groove is distributed with second groove using the central shaft of the shell as axis in horizontal symmetrical, the 3rd groove and institute
The 4th groove is stated to be distributed in horizontal symmetrical using the central shaft of the shell as axis.
Further, the battery module includes the first battery and the second battery, first battery and second electricity
Pond is respectively arranged in first groove and second groove, and capping first groove is provided with first groove
First cover plate of opening, the second cover plate for covering second slot opening is provided with second groove.
Further, the first battery anti-explosion mouth and the second electricity are respectively arranged with first cover plate and second cover plate
Pond venting.
Further, the gamma survey module includes a gamma sensor, and the gamma sensor is used to measure ground
Gamma data in layer；
The azimuthal measurement module includes first orientation sensor and second orientation sensor, the first orientation sensor
With bearing data of the second orientation sensor for measuring the nearly bit measuring instrument；
The gamma sensor and the first orientation sensor are mounted in the 3rd groove, the 3rd groove
On be provided with the 3rd cover plate for covering the 3rd slot opening.
Further, the electronic module includes a printed circuit board (PCB), the printed circuit board (PCB) and the second orientation
Sensor is mounted in the 4th groove, and the 4th lid of capping the 4th slot opening is provided with the 4th groove
Plate.
Further, microprocessor and memory, the gamma sensor, described are provided with the printed circuit board (PCB)
Input of the output end of one aspect sensor and the second orientation sensor respectively with the microprocessor is connected, described micro-
The output end of processor is connected with the input of the memory and the input of the transmitting antenna respectively, the transmitting antenna
Communicated wirelessly between the reception antenna with electromagnetic wave signal.
Further, data download interface is provided with the shell, the data download interface connects with the memory
Connect.
Further, the battery module, the electronic module, the gamma survey module and the azimuthal measurement module
Inside it is provided with double-acting shock absorber.
Preferably, the length of the nearly bit measuring instrument is one meter.
Nearly bit measuring instrument provided by the utility model with gamma survey function has the following advantages that：
1st, it is compact-sized, length is shorter；
2nd, measurement position apart from drill bit closer to measurement accuracy greatly improves；
2nd, Double-battery powered, cruising time are longer；
4th, the gamma data in stratum is measured in real time；
5th, mount and dismount more convenient；
6th, there is provided data download interface, make data export more convenient.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art and advantage
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, it is attached in describing below
Figure is only some embodiments of the utility model, for those of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the explosive view of the nearly bit measuring instrument provided by the utility model with gamma survey function；
Fig. 2 is the front view of the nearly bit measuring instrument provided by the utility model with gamma survey function；
In figure：1- shells, 2- transmitting antennas, the grooves of 3- first, the grooves of 4- the 4th, the batteries of 5- first, the cover plates of 6- first, 7-
Second battery, the cover plates of 8- second, 9- the first battery anti-explosion mouths, 10- the second battery anti-explosion mouths, 11- gamma sensors, 12- first
Aspect sensor, 13- second orientation sensors, the cover plates of 14- the 3rd, 15- printed circuit board (PCB)s, the cover plates of 16- the 4th, under 17- data
Carry interface.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the premise of creative work
Lower obtained every other embodiment, belong to the scope of the utility model protection.
In the utility model, unless otherwise clearly defined and limited, the art such as term " installation ", " connection ", " connected "
Language should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；It can make to be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands concrete meaning of the above-mentioned term in the utility model.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing,
" second " etc. is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so
The data used can exchange in the appropriate case, so that embodiment of the present utility model described herein can be with except at this
In diagram or description those beyond order implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, apparatus, product or equipment
Be not necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes,
The intrinsic other steps of method, product or equipment or unit.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment provides a kind of nearly bit measuring instrument with gamma survey function, installation
Between helicoid hydraulic motor and drill bit, including shell 1, the center of the shell 1 have slurry channel, are provided with the shell 1
Battery module, electronic module, gamma survey module and azimuthal measurement module, antenna slot, the antenna are provided with the shell 2
Transmitting antenna 2 is installed, the transmitting antenna 2 is set close to the drill bit, the transmitting antenna 2 and helicoid hydraulic motor top in groove
Reception antenna between communicate wirelessly.
Further, the first groove 3, the second groove, the 3rd groove and the 4th groove 4 are offered on the shell 1, it is described
First groove 3, second groove, the 3rd groove and the 4th groove 4 are set along the shell 1 is circumferentially evenly distributed
To put, first groove 3 and second groove are axis in horizontal symmetrical distribution using the central shaft of the shell 1, described the
Three grooves are distributed with the 4th groove 4 using the central shaft of the shell 1 as axis in horizontal symmetrical.
Preferably, the identical length of first groove, second groove, the 3rd groove and the 4th groove
Together, in the present embodiment, the length of first groove, second groove, the 3rd groove and the 4th groove is equal
For 45cm.
The battery module includes the first battery 5 and the second battery 7, and first battery 5 and second battery 7 are distinguished
It is installed in first groove 3 and second groove, first battery 5 and second battery 7 are the measuring instrument
Device is powered, and using above-mentioned Double-battery powered mode, can extend the cruising time of the measuring instrument.
Preferably, the gamma survey module includes a gamma sensor 11, and the gamma sensor 11 is used to measure
Gamma data in stratum, the azimuthal measurement module includes first orientation sensor 12 and second orientation sensor 13, described
First orientation sensor 12 and the second orientation sensor 13 are used for the bearing data for measuring the nearly bit measuring instrument, institute
State gamma sensor 11 and the first orientation sensor 12 is mounted in the 3rd groove, it is possible to achieve orientation and gamma
Integration, the assembly and connection of field instrumentation is reduced, increase the reliability of whole instrument, reduce manufacturing cost.
Preferably, the electronic module includes a printed circuit board (PCB) 15, and the printed circuit board (PCB) 15 is installed on described
In four grooves 4, microprocessor and memory, the gamma sensor 11, described first are provided with the printed circuit board (PCB) 15
Input of the output end of aspect sensor 12 and the second orientation sensor 13 respectively with the microprocessor is connected, described
The output end of microprocessor is connected with the input of the memory and the input of the transmitting antenna 2 respectively, the transmitting
Communicated wirelessly between antenna 2 and the reception antenna with electromagnetic wave signal.
Specifically, by the gamma sensor 11, the first orientation sensor 12 and the second orientation sensor
After 13 collect gamma data and bearing data, the data of collection are sent to the microprocessor, the microprocessor is to adopting
The data of collection are handled, and the data part after processing is stored in the memory, and another part passes through the transmitting day
Line 2 is launched in the form of an electromagnetic wave, completes to receive by the reception antenna, data are then transferred into ground in real time,
So that engineers and technicians understand the change of well track and formation information in time.
Further, data download interface 17, the data download interface 17 and the storage are provided with the shell 1
Device connects, and in the present embodiment, the data download interface 17 is USB interface, directly can be led data by the USB interface
Go out, make data export more convenient.
Preferably, in the battery module, the electronic module, the gamma survey module and the azimuthal measurement module
Double-acting shock absorber (not shown) is provided with, it is described double when producing extensional vibration and axial vibration in drilling process
These harmful vibrational energies can be effectively absorbed to damper, stores or is converted into the energy of other forms, reduce the brill
The fatigue damage of head, have the function that the protection drill bit.
Further, it is provided with first groove 3 and covers the first cover plate 6 that first groove 3 is open, described the
The second cover plate 8 for covering second slot opening is provided with two grooves, capping described the is provided with the 3rd groove
3rd cover plate 14 of three slot openings, the 4th cover plate for covering the 4th groove 4 opening is provided with the 4th groove 4
16, make the installation and removal of the measuring instrument more convenient.
Further, the first battery anti-explosion mouth 9 and are respectively arranged with first cover plate 6 and second cover plate 8
Two battery anti-explosion mouths 10, the first battery anti-explosion mouth 9 and the second battery anti-explosion mouth 10 can avoid instantaneous pressure excessive
Phenomena such as setting off an explosion, improve the security that first battery 5 and second battery 7 use.
Preferably, the length of the nearly bit measuring instrument is one meter, compared with prior art, its compact-sized, length
Shorter, measurement position is apart from drill bit closer to substantially increasing the accuracy of measurement, make engineer's judging early, instruct
Drilling well.
Embodiment 2
As depicted in figs. 1 and 2, the present embodiment provides a kind of nearly bit measuring instrument with gamma survey function, installation
Between helicoid hydraulic motor and drill bit, including shell 1, the center of the shell 1 have slurry channel, are provided with the shell 1
Battery module, electronic module, gamma survey module and azimuthal measurement module, antenna slot, the antenna are provided with the shell 2
Transmitting antenna 2 is installed, the transmitting antenna 2 is set close to the drill bit, the transmitting antenna 2 and helicoid hydraulic motor top in groove
Reception antenna between communicate wirelessly.
Further, the first groove 3, the second groove, the 3rd groove and the 4th groove 4 are offered on the shell 1, it is described
First groove 3, second groove, the 3rd groove and the 4th groove 4 are set along the shell 1 is circumferentially evenly distributed
To put, first groove 3 and second groove are axis in horizontal symmetrical distribution using the central shaft of the shell 1, described the
Three grooves are distributed with the 4th groove 4 using the central shaft of the shell 1 as axis in horizontal symmetrical.
Preferably, the identical length of first groove, second groove, the 3rd groove and the 4th groove
Together, in the present embodiment, the length of first groove, second groove, the 3rd groove and the 4th groove is equal
For 47cm.
The battery module includes the first battery 5 and the second battery 7, and first battery 5 and second battery 7 are distinguished
It is installed in first groove 3 and second groove, first battery 5 and second battery 7 are the measuring instrument
Device is powered, and using above-mentioned Double-battery powered mode, can extend the cruising time of the measuring instrument.
Preferably, the gamma survey module includes a gamma sensor 11, and the gamma sensor 11 is used to measure
Gamma data in stratum, the azimuthal measurement module includes first orientation sensor 12 and second orientation sensor 13, described
First orientation sensor 12 and the second orientation sensor 13 are used for the bearing data for measuring the nearly bit measuring instrument, institute
State gamma sensor 11 and the first orientation sensor 12 is mounted in the 3rd groove, it is possible to achieve orientation and gamma
Integration, the assembly and connection of field instrumentation is reduced, increase the reliability of whole instrument, reduce manufacturing cost.
Preferably, the electronic module includes a printed circuit board (PCB) 15, and the printed circuit board (PCB) 15 is installed on described
In four grooves 4, microprocessor and memory, the gamma sensor 11, described first are provided with the printed circuit board (PCB) 15
Input of the output end of aspect sensor 12 and the second orientation sensor 13 respectively with the microprocessor is connected, described
The output end of microprocessor is connected with the input of the memory and the input of the transmitting antenna 2 respectively, the transmitting
Communicated wirelessly between antenna 2 and the reception antenna with electromagnetic wave signal.
Specifically, by the gamma sensor 11, the first orientation sensor 12 and the second orientation sensor
After 13 collect gamma data and bearing data, the data of collection are sent to the microprocessor, the microprocessor is to adopting
The data of collection are handled, and the data part after processing is stored in the memory, and another part passes through the transmitting day
Line 2 is launched in the form of an electromagnetic wave, completes to receive by the reception antenna, data are then transferred into ground in real time,
So that engineers and technicians understand the change of well track and formation information in time.
Further, data download interface 17, the data download interface 17 and the storage are provided with the shell 1
Device connects, and in the present embodiment, the data download interface 17 is USB interface, directly can be led data by the USB interface
Go out, make data export more convenient.
Preferably, in the battery module, the electronic module, the gamma survey module and the azimuthal measurement module
Double-acting shock absorber (not shown) is provided with, it is described double when producing extensional vibration and axial vibration in drilling process
These harmful vibrational energies can be effectively absorbed to damper, stores or is converted into the energy of other forms, reduce the brill
The fatigue damage of head, have the function that the protection drill bit.
Further, it is provided with first groove 3 and covers the first cover plate 6 that first groove 3 is open, described the
The second cover plate 8 for covering second slot opening is provided with two grooves, capping described the is provided with the 3rd groove
3rd cover plate 14 of three slot openings, the 4th cover plate for covering the 4th groove 4 opening is provided with the 4th groove 4
16, make the installation and removal of the measuring instrument more convenient.
Further, the first battery anti-explosion mouth 9 and are respectively arranged with first cover plate 6 and second cover plate 8
Two battery anti-explosion mouths 10, the first battery anti-explosion mouth 9 and the second battery anti-explosion mouth 10 can avoid instantaneous pressure excessive
Phenomena such as setting off an explosion, improve the security that first battery 5 and second battery 7 use.
Preferably, the length of the nearly bit measuring instrument is 1.1 meters, compared with prior art, its compact-sized, length
Shorter, measurement position is apart from drill bit closer to substantially increasing the accuracy of measurement, make engineer's judging early, instruct
Drilling well.
Described above is only preferred embodiment of the present utility model, based on the embodiment in the utility model, this area
The every other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, should all belong to this practicality
Novel protected scope.It should be pointed out that for those skilled in the art, the utility model original is not being departed from
On the premise of reason, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection model of the present utility model
Enclose.
Claims (10)
1. a kind of nearly bit measuring instrument with gamma survey function, is installed between helicoid hydraulic motor and drill bit, its feature exists
In being provided with battery module, electronic module, gamma survey module and azimuthal measurement mould on, including shell (1), the shell (1)
Block, transmitting antenna (2), the transmitting antenna (2) and the reception antenna above the helicoid hydraulic motor are installed on the shell (1)
Between communicate wirelessly.
2. the nearly bit measuring instrument according to claim 1 with gamma survey function, it is characterised in that the shell
(1) the first groove (3), the second groove, the 3rd groove and the 4th groove (4), first groove (3), described are offered on
Along the circumferential evenly distributed setting of the shell (1), described first is recessed for two grooves, the 3rd groove and the 4th groove (4)
Groove (3) is distributed with second groove using the central shaft of the shell (1) as axis in horizontal symmetrical, the 3rd groove and institute
The 4th groove (4) is stated to be distributed in horizontal symmetrical using the central shaft of the shell (1) as axis.
3. the nearly bit measuring instrument according to claim 2 with gamma survey function, it is characterised in that the battery
Module includes the first battery (5) and the second battery (7), and first battery (5) and second battery (7) are respectively arranged in institute
State in the first groove (3) and second groove, capping the first groove (3) opening is provided with first groove (3)
The first cover plate (6), be provided with the second cover plate (8) for covering second slot opening on second groove.
4. the nearly bit measuring instrument according to claim 3 with gamma survey function, it is characterised in that described first
The first battery anti-explosion mouth (9) and the second battery anti-explosion mouth (10) are respectively arranged with cover plate (6) and second cover plate (8).
5. the nearly bit measuring instrument according to claim 2 with gamma survey function, it is characterised in that the gamma
Measurement module includes a gamma sensor (11), the gamma data that the gamma sensor (11) is used in measurement stratum；
The azimuthal measurement module includes first orientation sensor (12) and second orientation sensor (13), and the first orientation passes
Sensor (12) and the second orientation sensor (13) are used for the bearing data for measuring the nearly bit measuring instrument；
The gamma sensor (11) and the first orientation sensor (12) are mounted in the 3rd groove, and the described 3rd
The 3rd cover plate (14) for covering the 3rd slot opening is provided with groove.
6. the nearly bit measuring instrument according to claim 5 with gamma survey function, it is characterised in that the electronics
Module includes a printed circuit board (PCB) (15), and the printed circuit board (PCB) (15) and the second orientation sensor (13) are mounted on
In 4th groove (4), the 4th cover plate for covering the 4th groove (4) opening is provided with the 4th groove (4)
(16)。
7. the nearly bit measuring instrument according to claim 6 with gamma survey function, it is characterised in that the printing
Microprocessor and memory, the gamma sensor (11), the first orientation sensor (12) are provided with circuit board (15)
It is connected with input of the output end of the second orientation sensor (13) respectively with the microprocessor, the microprocessor
Output end is connected with the input of the memory and the input of the transmitting antenna (2) respectively, the transmitting antenna (2) with
Communicated wirelessly between the reception antenna with electromagnetic wave signal.
8. the nearly bit measuring instrument according to claim 7 with gamma survey function, it is characterised in that the shell
(1) data download interface (17) is provided with, the data download interface (17) is connected with the memory.
9. the nearly bit measuring instrument according to claim 1 with gamma survey function, it is characterised in that the battery
Double-acting shock absorber is provided with module, the electronic module, the gamma survey module and the azimuthal measurement module.
10. the nearly bit measuring instrument according to claim 1 with gamma survey function, it is characterised in that described near
The length of bit measuring instrument is one meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720820158.2U CN207093071U (en) | 2017-07-07 | 2017-07-07 | A kind of nearly bit measuring instrument with gamma survey function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720820158.2U CN207093071U (en) | 2017-07-07 | 2017-07-07 | A kind of nearly bit measuring instrument with gamma survey function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093071U true CN207093071U (en) | 2018-03-13 |
Family
ID=61556131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720820158.2U Expired - Fee Related CN207093071U (en) | 2017-07-07 | 2017-07-07 | A kind of nearly bit measuring instrument with gamma survey function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093071U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313768A (en) * | 2017-07-07 | 2017-11-03 | 贝兹维仪器(苏州)有限公司 | A kind of nearly bit measuring instrument with gamma survey function |
| CN109322662A (en) * | 2018-12-05 | 2019-02-12 | 贝兹维仪器(苏州)有限公司 | A kind of measurement while drilling pipe nipple |
| CN109441427A (en) * | 2018-12-05 | 2019-03-08 | 贝兹维仪器(苏州)有限公司 | Circuit docking facilities for drilling measuring equipment |
| CN110424957A (en) * | 2019-07-31 | 2019-11-08 | 奥瑞拓能源科技股份有限公司 | One kind is with brill electromagnetic wave azimuthal resistivity measuring instrument |
| CN110513104A (en) * | 2018-05-21 | 2019-11-29 | 中国石油化工股份有限公司 | One kind is with brill orientation combination metering device |
| CN114109364A (en) * | 2022-01-26 | 2022-03-01 | 东营市宇彤机电设备有限责任公司 | Ultra-short near-bit measurement system while drilling |
| CN116771331A (en) * | 2023-08-16 | 2023-09-19 | 中国科学院地质与地球物理研究所 | Underground signal monitoring device for wire-passing screw drilling tool |
-
2017
- 2017-07-07 CN CN201720820158.2U patent/CN207093071U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313768A (en) * | 2017-07-07 | 2017-11-03 | 贝兹维仪器(苏州)有限公司 | A kind of nearly bit measuring instrument with gamma survey function |
| CN107313768B (en) * | 2017-07-07 | 2023-12-05 | 东营市广利机电设备有限公司 | Near-bit measuring instrument with gamma measuring function |
| CN110513104A (en) * | 2018-05-21 | 2019-11-29 | 中国石油化工股份有限公司 | One kind is with brill orientation combination metering device |
| CN109322662A (en) * | 2018-12-05 | 2019-02-12 | 贝兹维仪器(苏州)有限公司 | A kind of measurement while drilling pipe nipple |
| CN109441427A (en) * | 2018-12-05 | 2019-03-08 | 贝兹维仪器(苏州)有限公司 | Circuit docking facilities for drilling measuring equipment |
| CN110424957A (en) * | 2019-07-31 | 2019-11-08 | 奥瑞拓能源科技股份有限公司 | One kind is with brill electromagnetic wave azimuthal resistivity measuring instrument |
| CN114109364A (en) * | 2022-01-26 | 2022-03-01 | 东营市宇彤机电设备有限责任公司 | Ultra-short near-bit measurement system while drilling |
| CN116771331A (en) * | 2023-08-16 | 2023-09-19 | 中国科学院地质与地球物理研究所 | Underground signal monitoring device for wire-passing screw drilling tool |
| CN116771331B (en) * | 2023-08-16 | 2023-12-08 | 中国科学院地质与地球物理研究所 | Underground signal monitoring device for wire-passing screw drilling tool |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180313 Termination date: 20210707 |