CN106321079B - Rotary test nipple for measurement while drilling instrument - Google Patents
Rotary test nipple for measurement while drilling instrument Download PDFInfo
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- CN106321079B CN106321079B CN201610835662.XA CN201610835662A CN106321079B CN 106321079 B CN106321079 B CN 106321079B CN 201610835662 A CN201610835662 A CN 201610835662A CN 106321079 B CN106321079 B CN 106321079B
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- module
- measurement
- sleeve
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides a rotary test nipple for a measurement while drilling instrument, 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 measured, the sleeve is provided with a containing cavity, an opening 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, a baffle is arranged between adjacent containing grooves, a gyroscope module, an MCU module, a CAN communication module, an FSK modulation demodulation module and a wifi communication module are integrated on the circuit board, the MCU module acquires measurement parameters of the equipment to be measured through the CAN communication module and the FSK modulation demodulation module, and the gyroscope module acquires rotation data of the equipment to be measured and transmits the acquired measurement parameters and rotation data to an upper computer through the wifi communication module. 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 rotary test nipple for a measurement while drilling instrument.
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 rotation test before underground drilling work is carried out.
The current rotary test nipple for the measurement while drilling instrument 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 the rotary test nipple for the measurement while drilling instrument, which has the advantages of simple structure, convenient measurement and reduced damage rate of products.
The invention provides a rotary test nipple for a measurement while drilling instrument, 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 (2) 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 and demodulation module and a wifi 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 wifi communication module.
Further, 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, and the power supply voltage of the batteries is 10-18V.
Further, the charging management circuit comprises a first power supply conversion module, a second power supply 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 supply conversion module and the second power supply conversion module are respectively connected with the power supply module, the power supply module is used for supplying power to the circuit board through the first power supply conversion module, and the power supply module is used for supplying power to the equipment to be tested through the second power supply 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, a power indicator and a power switch are further arranged on the sleeve, and the power switch is used for controlling the on-off of the power module.
Further, 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 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, be provided with wifi receiving module, microprocessor and USB in the host computer and change serial port module, through asynchronous serial communication port communication connection between wifi receiving module and the microprocessor, the wifi i receiving module is used for receiving the signal that wifi communication module sent, through asynchronous serial communication port communication connection between microprocessor and the USB changes serial port module.
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.
The rotary test nipple for the measurement while drilling instrument, which is disclosed by the invention, has the advantages that the device to be tested and the nipple are fixedly connected through the adapter, the flexible wire is used for connecting the electronic connection, the rotary test nipple for the measurement while drilling instrument 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 view of the structure of a rotary test sub for use with a measurement while drilling instrument of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of a rotary test sub for use with the measurement while drilling instrument of 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.
The rotary test nipple for the measurement while drilling instrument, which is disclosed by the invention, has the advantages that the device to be tested and the nipple are fixedly connected through the adapter, the flexible wire is used for connecting the electronic connection, the rotary test nipple for the measurement while drilling instrument 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 (10)
1. A rotatory test nipple joint for measuring instrument while drilling, its characterized in that: the short joint 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 other end of the sleeve (1) is connected with a receiving device (3), the other end of the adapter (2) is connected with equipment to be tested (4),
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 and demodulation module and a wifi communication module, wherein the MCU module collects measurement parameters of the 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 wifi communication module;
the power module comprises a plurality of batteries, and the MCU module is used for monitoring and judging the state of charge of the batteries.
2. The rotary test sub for a measurement while drilling instrument of claim 1, wherein: the power module further comprises a charging management circuit for monitoring the state of the batteries, a plurality of batteries are accommodated in the accommodating groove (7), and the power supply voltage of the batteries is 10-18V.
3. The rotary test sub for a measurement while drilling instrument of claim 2, wherein: the charging management circuit comprises a first power supply conversion module, a second power supply 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 supply conversion module and the second power supply conversion module are respectively connected with the power supply module, the power supply module is used for supplying power to the circuit board through the first power supply conversion module, and the power supply module is used for supplying power to the equipment to be tested through the second power supply 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.
4. A rotary test sub for a measurement while drilling instrument according to claim 3, wherein: 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.
5. The rotary test sub for a measurement while drilling instrument as recited in claim 4, wherein: the charging management circuit further comprises a first control switch and a second control switch, 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 red or flash; when the electric quantity of the battery reaches the set electric quantity, the MCU 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.
6. The rotary test sub for a measurement while drilling instrument of claim 1, wherein: the wireless communication system is characterized in that a wifi receiving module, a microprocessor and a USB (universal serial bus) to serial port module are arranged in the upper computer, the wifi receiving module is in communication connection with the microprocessor through an asynchronous serial communication port, the wifi receiving module is used for receiving signals sent by the wifi communication module, and the microprocessor is in communication connection with the USB to serial port module through the asynchronous serial communication port.
7. The rotary test sub for a measurement while drilling instrument 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.
8. The rotary test sub for a measurement while drilling instrument of claim 1, wherein: the outer diameter of the adapter (2) is smaller than the outer diameter of the sleeve (1).
9. The rotary test sub for a measurement while drilling instrument 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.
10. The rotary test sub for a measurement while drilling instrument 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610835662.XA CN106321079B (en) | 2016-09-20 | 2016-09-20 | Rotary test nipple for measurement while drilling instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610835662.XA CN106321079B (en) | 2016-09-20 | 2016-09-20 | Rotary test nipple for measurement while drilling instrument |
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| CN106321079A CN106321079A (en) | 2017-01-11 |
| CN106321079B true CN106321079B (en) | 2023-05-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108678733A (en) * | 2018-06-22 | 2018-10-19 | 中国电子科技集团公司第二十二研究所 | Nearly drill bit multi-parameter drilling measuring equipment, method and device |
| CN108915609B (en) * | 2018-07-20 | 2020-11-10 | 中国石油大学(华东) | Intelligent marine drilling riser single joint |
| CN112302536B (en) * | 2020-10-16 | 2023-03-24 | 安徽中勘钻探工程有限公司 | Intelligent directional drilling system and directional drilling method thereof |
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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 |
| CN104790941A (en) * | 2015-04-17 | 2015-07-22 | 成都理工大学 | While-drilling measuring system of hole drilling track for mine |
| CN105350952A (en) * | 2015-11-10 | 2016-02-24 | 中煤科工集团西安研究院有限公司 | Intelligent drilling track measuring device and method |
| CN206267844U (en) * | 2016-09-20 | 2017-06-20 | 贝兹维仪器(苏州)有限公司 | A kind of rotary test pipe nipple for measurement while-drilling instrument |
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2016
- 2016-09-20 CN CN201610835662.XA patent/CN106321079B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104790941A (en) * | 2015-04-17 | 2015-07-22 | 成都理工大学 | While-drilling measuring system of hole drilling track for mine |
| CN105350952A (en) * | 2015-11-10 | 2016-02-24 | 中煤科工集团西安研究院有限公司 | Intelligent drilling track measuring device and method |
| CN206267844U (en) * | 2016-09-20 | 2017-06-20 | 贝兹维仪器(苏州)有限公司 | A kind of rotary test pipe nipple for measurement while-drilling instrument |
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Inventor after: Liu Naizhen Inventor after: Liu Ce Inventor after: Yu Qingdong Inventor after: Liang Renyue Inventor before: Liu Ce Inventor before: Yu Qingdong Inventor before: Liang Renyue |
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