CN106368680B - Wireless measurement while drilling device - Google Patents
Wireless measurement while drilling device Download PDFInfo
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- CN106368680B CN106368680B CN201610835645.6A CN201610835645A CN106368680B CN 106368680 B CN106368680 B CN 106368680B CN 201610835645 A CN201610835645 A CN 201610835645A CN 106368680 B CN106368680 B CN 106368680B
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- wireless
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 238000005259 measurement Methods 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 210000002445 nipple Anatomy 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Secondary Cells (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a wireless while-drilling testing device which comprises a sleeve, a circuit board and a power module, wherein one end of the sleeve is connected with an adapter, the other end of the sleeve is connected with a receiving device, the other end of the adapter is connected with equipment to be tested, the sleeve is provided with a containing cavity, an opening is formed in the side face of the sleeve, a cover plate covers the opening, a support is arranged in the containing cavity, at least one containing groove is arranged on the support, the containing groove is opposite to the opening, a baffle is arranged between every two adjacent containing grooves, the MCU module collects measurement parameters of the equipment to be tested through the CAN communication module and the FSK modulation demodulation module, the gyroscope module collects rotation data of the equipment to be tested, the collected measurement parameters and rotation data are transmitted to an upper computer through the wireless communication module, the power module comprises a plurality of rechargeable lithium batteries, the rechargeable lithium batteries are contained in the containing grooves, and the rechargeable lithium batteries are connected in series and in parallel. The invention has simple structure, convenient measurement and difficult damage.
Description
Technical Field
The invention belongs to the field of petroleum exploration, and particularly relates to a wireless while-drilling testing device.
Background
In modern drilling technology, more and more sensors are installed in the down-hole drill string for making while-drilling measurements of borehole environment and parameters, such as pressure, spatial attitude, temperature, gamma, etc. The data from the sensors is sent to a measurement while drilling device and then transmitted to the surface by the device. With the exhaustion of global oil and gas resources and the increasing demand of social development for energy, development of low-pressure oil and gas reservoirs and coalbed methane is more and more emphasized, and meanwhile, in order to better develop such resources, special drilling technologies such as directional wells, horizontal wells, underbalanced drilling, geosteering drilling, gas drilling and the like are more adopted, and various detailed drilling process parameters and geological parameters need to be acquired, and the parameters need to be sent to the ground in real time in the drilling process, so that decision basis is provided for field engineers.
The electromagnetic wireless measurement while drilling is that the electromagnetic wave is used for carrying out communication between the underground measurement and control system and the ground base station, so that the track detection and control of the drill bit and the real-time processing of underground exploration data on a ground processor are realized. The insulation nipple is the key of wireless communication of the wireless measurement while drilling instrument, and the insulation nipple is used for transmitting and receiving wireless signals by insulating the drill rods at the upper end and the lower end to serve as two poles of a wireless signal transmitting antenna respectively. Because the insulating nipple has important significance for monitoring the underground drilling tool, a measuring instrument connected with the insulating nipple needs to be subjected to wireless test before underground drilling work is carried out.
The current wireless test nipple is mainly used for testing in a factory building at normal temperature. However, according to the working requirements, there are many instruments to perform the rotation test, each instrument needs to separately design the interface of the rotary joint, which is inconvenient, and the connection line of the rotary joint is often damaged.
Therefore, a new technical solution is necessary.
Disclosure of Invention
Aiming at the problems, the invention provides a wireless while-drilling testing device which is simple in structure and convenient to measure, and the damage rate of products is reduced.
The invention provides a wireless while-drilling testing device, which comprises a sleeve, a circuit board and a power module, wherein the circuit board and the power module are both positioned in the sleeve, one end of the sleeve is connected with an adapter, the other end of the sleeve is connected with a receiving device, the other end of the adapter is connected with equipment to be tested,
the sleeve is provided with a containing cavity, an opening communicated with the containing cavity is formed in the side face of the sleeve, a cover plate is covered on the opening, a support is arranged in the containing cavity, at least one containing groove is arranged on the support, the containing groove is opposite to the opening, and a baffle is arranged between every two adjacent containing grooves;
the circuit board is integrated with a gyroscope module, an MCU module, a CAN communication module, an FSK modulation-demodulation module and a wireless communication module, wherein the MCU module acquires measurement parameters of the equipment to be tested through the CAN communication module and the FSK modulation-demodulation module, the gyroscope module acquires rotation data of the equipment to be tested, and the acquired measurement parameters and rotation data are transmitted to an upper computer through the wireless communication module;
the power module comprises a plurality of rechargeable lithium batteries, the rechargeable lithium batteries are accommodated in the accommodating groove, and the rechargeable lithium batteries are connected in series and in parallel.
Furthermore, a charging interface is further formed in the sleeve, and a plurality of rechargeable lithium batteries are connected with an external power supply through the charging interface.
Further, the circuit board is further integrated with a first power conversion module, a second power conversion module, a first battery voltage and current detection module, a second battery voltage and current detection module and an undervoltage overvoltage and overcurrent protection module, wherein the first power conversion module and the second power conversion module are respectively connected with the power module, the power module is used for supplying power to the circuit board through the first power conversion module, and the power module is used for supplying power to the equipment to be tested through the second power conversion module; the first battery voltage and current detection module is used for monitoring the voltage and current states of the power supply module, the second battery voltage and current detection module is used for monitoring the voltage and current states of the second power supply conversion module, and the undervoltage overvoltage overcurrent protection module is used for monitoring a circuit between the battery and equipment to be tested.
Further, one end of the sleeve is also provided with a power indicator lamp and a power switch, and the power switch is used for controlling the on-off of the power module.
Further, the method comprises the steps of,
the power module further includes a battery protection circuit and a charge management circuit,
the battery protection circuit comprises an overcharge control tube and an overdischarge control tube, the MCU module is used for monitoring and controlling the voltage of the battery, and when the charging voltage of the battery is greater than a set voltage, the MCU module controls the overcharge control tube to be cut off; when the discharging voltage of the battery is smaller than the set voltage, the MCU module controls the over-discharging control tube to be cut off; when the current on the load in the circuit is larger than the set current, the protection chip controls the overdischarge control tube to be cut off;
the charging management circuit comprises a first control switch and a second control switch, the MCU module is used for monitoring and judging the state of charge of the battery, when the electric quantity of the battery is lower than a set electric quantity, the MCU module controls the first control switch to be closed, and the power indicator lights are lightened to be red or flash; when the electric quantity of the battery reaches the set electric quantity, the MCU module controls the first control switch to be cut off, the second control switch to be closed, and the power indicator lights are lighted to be green.
Further, the overcharge control tube and the overdischarge control tube are MOSFETs, and the overcharge control tube and the overdischarge control tube are connected in series.
Further, the upper computer is a monitoring computer, and the monitoring computer is used for synchronously monitoring, analyzing and storing the received data.
Further, the outer diameter of the adapter is smaller than the outer diameter of the sleeve.
Further, the adapter is fixedly connected with the sleeve through a bolt, and the adapter is connected with the equipment to be tested through a bolt.
Furthermore, a gyroscope module interface is further arranged on the adapter, and the gyroscope module interface is used for being connected with the gyroscope module.
According to the wireless while-drilling testing device, the device to be tested and the short joint are fixedly connected through the adapter, the flexible wire is used for connecting the electronic connection, the wireless testing short joint and the device to be tested rotate together, data are transmitted to the computer through wireless, the device to be tested and the turntable only need to be connected through hardware, the structure is simple, the measurement is convenient, and the damage rate of products is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a wireless while-drilling test device according to the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic diagram of a wireless measurement while drilling device according to the present invention;
FIG. 4 is a block diagram of the circuit configuration of the present invention;
fig. 5 is a transmission block diagram of the wireless communication module and the upper computer according to the present invention.
The device comprises a 1-sleeve, a 2-adapter, a 3-receiving device, 4-equipment to be tested, a 5-cover plate, a 6-bracket, a 7-accommodating groove, an 8-indicator lamp, a 9-power switch, a 10-accommodating cavity, an 11-circuit board, a 12-baffle and 13-bolts.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a short joint for wireless measurement while drilling according to the present invention; FIG. 2 is a schematic cross-sectional view A-A of FIG. 1; fig. 3 is a schematic structural view of a short joint for wireless measurement while drilling. As shown in fig. 1 to 3, the short joint of the invention comprises a sleeve 1, a circuit board 11 and a power module, wherein the circuit board 11 and the power module are both positioned in the sleeve 1, one end of the sleeve 1 is connected with an adapter 2, the other end of the sleeve 1 is connected with a receiving device 3, and the other end of the adapter 2 is connected with a device 4 to be tested.
The sleeve 1 is provided with a containing cavity 10, an opening communicated with the containing cavity 10 is formed in the side face of the sleeve 1, and a cover plate 5 is covered on the opening. The cover plate 5 is connected to the sleeve 1 through a bolt 13, so as to cover the open hole,
the accommodating cavity 10 is internally provided with a bracket 6, at least one accommodating groove 7 is arranged on the bracket 6, the accommodating groove 7 is opposite to the opening, and a baffle 12 is arranged between adjacent accommodating grooves 7.
The circuit board is integrated with a gyroscope module, an MCU module, a CAN communication module, an FSK modulation and demodulation module and a wireless communication module, the MCU module collects measurement parameters of equipment to be tested through the CAN communication module and the FSK modulation and demodulation module, the gyroscope module collects rotation data of the equipment to be tested, and the collected measurement parameters and rotation data are transmitted to an upper computer through the wireless communication module.
In one embodiment, the wireless communication module 11 is a Zigbee communication module or a wifi communication module.
In yet another embodiment, data transmission between the device under test and the wireless communication nipple is via CAN or FS33 communication.
The power module comprises a plurality of batteries and a charging management circuit for monitoring the state of the batteries, the batteries are accommodated in the accommodating groove 7, and the power supply voltage of the batteries is 10-18V. The battery can be taken out of the accommodating groove or put into the accommodating groove through the opening. The plurality of batteries are No. 5 alkaline batteries, and the plurality of batteries are connected in series. In a preferred embodiment, to ensure that the alkaline cells provide sufficient power, 8 alkaline cells may be used in series, each at a voltage of 1.5V, the 8 alkaline cells providing a voltage of 12V and the 8 alkaline cells having a capacity of 1500mAh. In another embodiment, the plurality of batteries is a rechargeable lithium battery No. 5, and the plurality of rechargeable lithium batteries are connected in series and parallel. In a preferred embodiment, the number 5 rechargeable lithium batteries is 8, the 8 rechargeable lithium batteries are divided into two groups, the two groups are connected in parallel, each group comprises 4 rechargeable lithium batteries connected in series, the voltage of each rechargeable lithium battery is 3.7V, and the total capacity of the 8 rechargeable lithium batteries is 1600mAh.
In one embodiment, the sleeve 1 is further provided with a charging interface. The charging interface is a power adapter interface or a USB interface, and the rechargeable lithium batteries are connected with an external power supply through the charging interface.
Referring to fig. 4, fig. 4 is a block diagram of a circuit structure of the present invention. As shown in fig. 4, the charging management circuit includes a first power conversion module, a second power conversion module, a first battery voltage and current detection module, a second battery voltage and current detection module, and an under-voltage, over-current and over-current protection module, where the first power conversion module and the second power conversion module are respectively connected with a power module, the power module is used for supplying power to the circuit board through the first power conversion module, and the power module is used for supplying power to the device to be tested through the second power conversion module; the first battery voltage and current detection module is used for monitoring the voltage and current states of the power supply module, the second battery voltage and current detection module is used for monitoring the voltage and current states of the second power supply conversion module, and the undervoltage overvoltage overcurrent protection module is used for monitoring a circuit between the battery and equipment to be tested.
The sleeve 1 is also provided with a power indicator lamp 8 and a power switch 9, and the power switch is used for controlling the on-off of the power module. The power indicator lamp 8 is an LED lamp.
The charging management circuit further comprises a first control switch and a second control switch, the MCU module is used for monitoring and judging the state of charge of the battery, when the electric quantity of the battery is lower than the set electric quantity, the MCU module controls the first control switch to be closed, and the power indicator lights are lightened to be red or flash; when the electric quantity of the battery reaches the set electric quantity, the MCU module controls the first control switch to be cut off, the second control switch to be closed, and the power indicator lights are lighted to be green.
Referring to fig. 5, fig. 5 is a transmission block diagram of a wireless communication module and an upper computer according to the present invention. As shown in fig. 5, the upper computer is provided with a wireless receiving module, a microprocessor and a USB-to-serial port module, the wireless receiving module is in communication connection with the microprocessor through an asynchronous serial communication port, the wireless receiving module is used for receiving signals sent by the wireless communication module, and the microprocessor is in communication connection with the USB-to-serial port module through the asynchronous serial communication port. The wireless receiving module is a Zigbee receiving module or a wifi receiving module.
The power module comprises a rechargeable lithium battery, a battery protection circuit and a charging management circuit, wherein the rechargeable lithium battery is accommodated in the accommodating cavity, and the rechargeable lithium battery is connected with an external power supply through a charging interface.
The power module further includes a battery protection circuit and a charge management circuit. The battery protection circuit comprises an overcharge control tube and an overdischarge control tube, the MCU module is used for monitoring and controlling the voltage of the battery, and when the charging voltage of the battery is greater than a set voltage, the MCU module controls the overcharge control tube to be cut off; when the discharging voltage of the battery is smaller than the set voltage, the MCU module controls the over-discharging control tube to be cut off; when the current on the load in the circuit is larger than the set current, the protection chip controls the over-discharge control tube to be cut off.
The overcharge control tube and the overdischarge control tube are MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFETs for short) and are connected in series.
The charging management circuit further comprises a first control switch and a second control switch, the MCU module is used for monitoring and judging the state of charge of the battery, when the electric quantity of the battery is lower than the set electric quantity, the MCU module controls the first control switch to be closed, and the power indicator lights are lightened to be red or flash; when the electric quantity of the battery reaches the set electric quantity, the MCU module controls the first control switch to be cut off, the second control switch to be closed, and the power indicator lights are lighted to be green.
The first control switch and the second control switch are MOSFETs.
In one embodiment, the upper computer is a monitoring computer, and the monitoring computer is used for synchronously monitoring, analyzing and storing the received data.
In one embodiment, the outer diameter of the adapter 2 is smaller than the outer diameter of the sleeve 1. The device to be tested 4 is connected to the adapter 2, and the external diameter of the adapter 2 is smaller, so that the device to be tested 4 and the sleeve 1 are provided with a rotation guide, and the device to be tested 4 and the sleeve 1 are guaranteed to synchronously rotate. The adapter 2 of the present invention is small in size so as not to interfere with downhole operations.
The adapter 2 is fixedly connected with the sleeve 1 through bolts, and the adapter 2 is connected with the equipment 4 to be tested through bolts.
And a gyroscope module interface is further arranged on the adapter 2 and is used for being connected with the gyroscope module.
The first power supply conversion module supplies power to the circuit board (5V and 3.3V are needed in the circuit, and power is supplied to each functional module), and the second power supply conversion module supplies power to the equipment to be tested, and the equipment to be tested needs 30V.
The invention designs the detection of the power supply voltage of the equipment to be tested, and prevents data errors caused by insufficient power supply; in the power supply circuit for the equipment to be tested, an undervoltage protection circuit, an overvoltage protection circuit and an overcurrent protection circuit are designed, so that the equipment to be tested is not damaged while power is supplied to the equipment to be tested.
The circuit is designed with battery voltage and current detection, and the battery state is detected at any time, so that one-time complete test is ensured, and the middle is not interrupted. When the voltage is monitored to be too low, the indicator lamp flashes to remind a user to replace the battery.
The device to be tested and the wireless test pup joint are in data communication through the FS33, and an FSK modulation-demodulation circuit is designed.
According to the wireless while-drilling testing device, the device to be tested and the short joint are fixedly connected through the adapter, the flexible wire is used for connecting the electronic connection, the wireless testing short joint and the device to be tested rotate together, data are transmitted to the computer through wireless, the device to be tested and the turntable only need to be connected through hardware, the structure is simple, the measurement is convenient, and the damage rate of products is reduced.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (8)
1. A wireless while-drilling testing device, characterized in that: the device comprises a sleeve (1), a circuit board and a power supply module, wherein the circuit board and the power supply module are both positioned in the sleeve, one end of the sleeve (1) is connected with an adapter (2), the outer diameter of the adapter (2) is smaller than that of the sleeve (1), the other end of the sleeve (1) is connected with a receiving device (3), the other end of the adapter (2) is connected with equipment (4) to be tested,
the sleeve (1) is provided with a containing cavity (10), an opening communicated with the containing cavity (10) is formed in the side face of the sleeve (1), a cover plate (5) is covered on the opening, a support (6) is arranged in the containing cavity (10), at least one containing groove (7) is arranged on the support, the containing groove (7) is opposite to the opening, and a baffle plate (12) is arranged between every two adjacent containing grooves (7);
the circuit board is integrated with a gyroscope module, an MCU module, a CAN communication module, an FSK modulation-demodulation module and a wireless communication module, wherein the MCU module acquires measurement parameters of the equipment to be tested through the CAN communication module and the FSK modulation-demodulation module, the gyroscope module acquires rotation data of the equipment to be tested, and the acquired measurement parameters and rotation data are transmitted to an upper computer through the wireless communication module;
the circuit board is also integrated with a first power conversion module, a second power conversion module, a first battery voltage and current detection module, a second battery voltage and current detection module and an undervoltage overvoltage and overcurrent protection module, wherein the first power conversion module and the second power conversion module are respectively connected with the power module, the power module is used for supplying power to the circuit board through the first power conversion module, and the power module is used for supplying power to the equipment to be tested through the second power conversion module; the first battery voltage and current detection module is used for monitoring the voltage and current states of the power supply module, the second battery voltage and current detection module is used for monitoring the voltage and current states of the second power supply conversion module, and the undervoltage overvoltage and overcurrent protection module is used for monitoring a circuit between a battery and the equipment to be tested;
the power module comprises a plurality of rechargeable lithium batteries, the rechargeable lithium batteries are accommodated in the accommodating groove, and the rechargeable lithium batteries are connected in series and in parallel.
2. The wireless while-drilling test device of claim 1, wherein: the sleeve is also provided with a charging interface, and a plurality of rechargeable lithium batteries are connected with an external power supply through the charging interface.
3. The wireless while-drilling test device of claim 1, wherein: one end of the sleeve is also provided with a power indicator lamp (8) and a power switch (9), and the power switch is used for controlling the on-off of the power module.
4. A wireless while drilling test apparatus according to claim 3, wherein:
the power module further includes a battery protection circuit and a charge management circuit,
the battery protection circuit comprises an overcharge control tube and an overdischarge control tube, the MCU module is used for monitoring and controlling the voltage of the battery, and when the charging voltage of the battery is greater than a set voltage, the MCU module controls the overcharge control tube to be cut off; when the discharging voltage of the battery is smaller than the set voltage, the MCU module controls the over-discharging control tube to be cut off; when the current on the load in the circuit is larger than the set current, the MCU module controls the overdischarge control tube to be cut off;
the charging management circuit comprises a first control switch and a second control switch, the MCU module is used for monitoring and judging the state of charge of the battery, when the electric quantity of the battery is lower than a set electric quantity, the MCU module controls the first control switch to be closed, and the power indicator lights are lightened to be red or flash; when the electric quantity of the battery reaches the set electric quantity, the MCU module controls the first control switch to be cut off, the second control switch to be closed, and the power indicator lights are lighted to be green.
5. The wireless while-drilling test device of claim 4, wherein: the over-charge control tube and the over-discharge control tube are MOSFETs, and are connected in series.
6. The wireless while-drilling test device of claim 1, wherein: the upper computer is a monitoring computer, and the monitoring computer is used for synchronously monitoring, analyzing and storing the received data.
7. The wireless while-drilling test device of claim 1, wherein: the adapter (2) is fixedly connected with the sleeve (1) through bolts, and the adapter (2) is connected with the equipment (4) to be tested through bolts.
8. The wireless while-drilling test device of claim 1, wherein: and a gyroscope module interface is further arranged on the adapter (2), and the gyroscope module interface is used for being connected with the gyroscope module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835645.6A CN106368680B (en) | 2016-09-20 | 2016-09-20 | Wireless measurement while drilling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835645.6A CN106368680B (en) | 2016-09-20 | 2016-09-20 | Wireless measurement while drilling device |
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| CN106368680A CN106368680A (en) | 2017-02-01 |
| CN106368680B true CN106368680B (en) | 2023-09-26 |
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| CN201610835645.6A Active CN106368680B (en) | 2016-09-20 | 2016-09-20 | Wireless measurement while drilling device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083955B (en) * | 2017-04-21 | 2023-07-07 | 中国地质科学院水文地质环境地质研究所 | High-temperature high-pressure digital geothermal logging system |
| CN110195584B (en) * | 2018-02-26 | 2022-01-28 | 中国石油化工股份有限公司 | Measurement-while-drilling bidirectional wireless communication simulation test device and method |
| CN110535229B (en) * | 2019-07-04 | 2020-04-21 | 中国石油天然气集团有限公司 | Measurement while drilling MWD management system with double power supplies |
| CN112270820A (en) * | 2020-10-16 | 2021-01-26 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Wifi communication device for torque wrench |
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| CN206144554U (en) * | 2016-09-20 | 2017-05-03 | 贝兹维仪器(苏州)有限公司 | It is wireless along with boring testing arrangement |
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| CN1603576A (en) * | 2004-10-28 | 2005-04-06 | 长沙中联重工科技发展股份有限公司 | Real time measuring method and apparatus for horizontal directional drilling |
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| CN105604539A (en) * | 2014-11-24 | 2016-05-25 | 核工业北京地质研究院 | Multi-parameter combination logging probe |
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| CN106368680A (en) | 2017-02-01 |
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