A system and method for measuring borehole trajectory in coal mine
A measurement system and trajectory technology, which is applied in the direction of measurement, earthwork drilling, borehole/well components, etc., can solve the problems of bulky drilling trajectory measurement system, high requirements for drilling tools, and high price, and achieve compact structure and low price. Inexpensive, small size effect
Active Publication Date: 2016-08-24
BEIJING HEKANG SCI & TECH DEV
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Problems solved by technology
[0007] The present invention mainly solves the shortcomings of the existing technology such as bulky, expensive, and high requirements on drilling tools of the drilling trajectory measurement system, and provides a simple and compact structure, small size, suitable for various specifications of drilling tools in coal mines , does not change the coal mine underground drilling process, is cheap, and can be applied to the coal mine underground drilling trajectory measurement system and method in the explosive gas environment
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[0023] see figure 1 , a coal mine borehole trajectory measurement system, including: an in-hole assembly for continuous measurement and storage of drilling trajectory parameters, an orifice explosion-proof controller 4 for controlling the in-hole assembly in a wireless manner, the in-hole assembly It includes: an explosion-proof fixing component 1, an explosion-proof battery cylinder 2, and an explosion-proof probe tube 3. The explosion-proof fixing component 1 fixes the explosion-proof battery cylinder 2 and the explosion-proof probe tube 3 in the drilling tool and acts as a shock absorber; the explosion-proof battery cylinder 2 It is connected with the explosion-proof probe 3 and supplies power to it; the explosion-proof probe 3 can continuously measure and save the drilling trajectory parameters. Since all the components adopt explosion-proof design, it can be applied in the explosive gas environment in underground coal mines.
[0024] Before drilling, select the matching ...
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The invention relates to a system and a method for measuring a drilling track, in particular to a system and a method for measuring a drilling track under a coal mine. The system comprises an in-hole assembly for continuously measuring and storing drilling track parameters and an orifice explosion-proof controller for controlling the in-hole assembly in a wireless manner, wherein the in-hole assembly comprises an explosion-proof fixing assembly, an explosion-proof battery cartridge and an explosion-proof exploring tube; the explosion-proof fixing assembly is used for fixing the explosion-proof battery cartridge and the explosion-proof exploring tube in a drilling tool and damping; the explosion-proof battery cartridge is connected with the explosion-proof exploring tube, and is used for supplying power to the explosion-proof exploring tube; the explosion-proof exploring tube can be used for continuously measuring and storing drilling track parameters. The system has the advantages that 1, the system is simple and compact in structure, small in size and suitable for drilling tools of various specifications under coal mines; 2, the drilling process for use under the coal mine is not changed, and the price is low; by adopting an explosion-proof design, the system can work under the coal mine in an explosive gas environment.
Description
technical field [0001] The invention relates to a drilling track measurement system and method, in particular to a coal mine underground drilling track measurement system and method. Background technique [0002] Borehole trajectory measurement is the technical abbreviation for continuous measurement of the trajectory formed by the drilling hole. The drilling trajectory measurement system is divided into storage type and drilling type according to the working mode. The storage type is relatively simple and cheap, but it needs to send the instrument into the hole after the drilling is completed, and then pull out the drill, measure and save the drilling trajectory parameters during the drilling process; while drilling is relatively complicated and expensive, the drilling The front of the hole is fixed in the drilling tool, and the drilling trajectory parameters are uploaded in real time with the extension of the drilling depth. [0003] At present, there are many applicatio...
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IPC IPC(8): E21B47/022
Inventor 薛维温榕刘金全肖万
Owner BEIJING HEKANG SCI & TECH DEV