Directional tool of horizontal long drill hole
A technology of inclinometer while drilling and long drilling, applied in surveying, earthwork drilling, wellbore/well components, etc., can solve problems such as no clear reports, and achieve the effect of ensuring long-distance and long-term communication
Active Publication Date: 2009-01-14
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Problems solved by technology
[0002] In the known technology, borehole inclinometer technology has long been recognized by people, especially in the middle of oil drilling and vertically downward drilling exploration on the ground, the use of inclinometer instruments and the application of inclinometer technology are relatively mature, but There is no clear report on the use of inclinometers in coal mines, especially in ultra-long horizontal boreholes
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[0011] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0012] see figure 1 , figure 2 , the present invention consists of a probe tube, a conversion interface, a monitoring display, and a power supply; wherein the probe tube is also composed of a CPU controller, a pitch angle sensor, an azimuth sensor, a data acquisition unit, an intrinsically safe power supply circuit, a communication interface, a battery pack, and a battery protection circuit , Charger composition. The probe tube is connected with the monitoring display through the conversion interface, and the power supply is connected with the monitoring display. The internal connection relationship of the probe tube is: the CPU controller is connected to the data acquisition unit, the intrinsically safe power supply, and the communication interface, the data acquisition unit is respectively connected to the pitch angle sensor and the azim...
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The invention relates to an explosion-proof horizontal long drill hole LWD inclinometer used under a coal mine which can measure the inclined angle of an azimuth angle, the acceleration and the deflection angle of a tool face, which belongs to the field of the geological exploration instrument. In the well-known technology, the drill hole inclinometry technology is known to people for a long time, especially in the petroleum drilling and the vertical downward drilling exploration from the ground, the use of the inclinometer and the application of the inclinometry technology are relatively mature, but the use of inclinometer and the application of the inclinometry technology under a coal mine, especially in an ultra-long horizontal drill hole is still not explicitly reported. The long drill hole LWD inclinometer provided by the invention is composed of a probing pipe, a conversion interface, a monitor used for monitoring and a power supply which are connected in sequence; therefore, the explosion-proof horizontal long drill hole LWD inclinometer is an explosion-proof horizontal long drill hole LWD inclinometer used under a coal mine which can measure the inclined angle of an azimuth angle, the acceleration and the deflection angle of a tool face.
Description
technical field [0001] The invention belongs to the field of geological exploration instruments, in particular to an explosion-proof horizontal long drilling inclinometer for underground coal mines capable of measuring azimuth, inclination, acceleration and tool face angle. Background technique [0002] In the known technology, borehole inclinometer technology has long been recognized by people, especially in the middle of oil drilling and vertically downward drilling exploration on the ground, the use of inclinometer instruments and the application of inclinometer technology are relatively mature, but The use of inclinometers in coal mines, especially in ultra-long horizontal boreholes, has not been clearly reported. Contents of the invention [0003] The object of the present invention is to provide an explosion-proof horizontal long borehole inclinometer while drilling which can measure azimuth angle, acceleration and tool face angle. [0004] In order to solve the abo...
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IPC IPC(8): E21B47/022
Inventor 冯宏张富平王继广丛皖平王勇
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP