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CN-117287181-B - Ultrasonic imaging logging device for coal bed gas detection

CN117287181BCN 117287181 BCN117287181 BCN 117287181BCN-117287181-B

Abstract

The invention discloses an ultrasonic imaging logging device for detecting coalbed methane, which comprises a base, a controller and an ultrasonic detector, wherein the ultrasonic detector is arranged below the base, and the bottom of the ultrasonic detector is inserted into a logging borehole. The ultrasonic detector is driven to move downwards through the driving motor, so that the ultrasonic detector penetrates into the logging well hole, adjustment according to the depth of the logging well hole is facilitated, the ultrasonic detector detects coalbed methane in the logging well hole in the moving process, data of detected positions are displayed on the display screen, the user can conveniently check and record the data, and the two groups of first pushing plates and the two groups of second extrusion blocks are abutted against the inner wall of the logging well hole, so that the overall stability of the device in use is further improved, the stability of the device in use is facilitated to be enhanced, and the stability of the ultrasonic detector in scanning detection is facilitated to be improved.

Inventors

  • LAI PENG
  • YANG SHUGUANG
  • LI RUIMING
  • ZHANG NA
  • WANG GANG
  • LI ZHONGBO

Assignees

  • 新疆维吾尔自治区煤田地质局煤层气研究开发中心

Dates

Publication Date
20260512
Application Date
20230911

Claims (7)

  1. 1. An ultrasonic imaging logging device for detecting coalbed methane comprises a base (1), a controller (2) and an ultrasonic detector (3), wherein the ultrasonic detector (3) is arranged below the base (1), the bottom of the ultrasonic detector (3) is inserted into a logging borehole, the controller (2) is arranged above the base (1), the controller (2) is used for controlling the ultrasonic detector (3) to detect coalbed methane, the ultrasonic imaging logging device is characterized in that the bottom of the base (1) is provided with a telescopic component which is used for adjusting the position depth of the ultrasonic detector (3), the telescopic component comprises a driving motor (303), a rotating screw (304) and a connecting rod (301), the driving motor (303) is fixedly arranged in the inner cavity of the base (1), the output end of the bottom of the driving motor (303) penetrates through the base (1) to extend downwards and is fixedly connected with the rotating screw (304), the connecting rod (301) is in threaded connection with the outer wall of the rotating screw (304), and the ultrasonic detector (3) is arranged on the connecting rod (301); The anti-slip device comprises a base (1), and is characterized in that a supporting rod (4) is fixedly arranged at the bottom of the base (1), a first fixed block (5) is fixedly arranged on the outer wall of the supporting rod (4), a first rotating screw (501) is movably inserted into the inner wall of an inner cavity of the first fixed block (5), a first extrusion block (502) is connected with the outer wall of the first rotating screw (501) in a threaded manner, the right end of the first extrusion block (502) penetrates through the first fixed block (5) to extend rightwards and is fixedly provided with a first push plate (503), and an anti-slip pad (504) is fixedly adhered to the right wall of the first push plate (503); The outer wall of the supporting rod (4) is fixedly provided with a second fixed block (6), the inner cavity of the second fixed block (6) is provided with a second rotating screw rod (601), the outer wall of the second rotating screw rod (601) is in threaded connection with a second extrusion block (602), and the right end of the second extrusion block (602) penetrates through the second fixed block (6) to extend rightwards and is fixedly provided with a second push plate (603); The inner wall of the inner cavity of the supporting rod (4) is rotationally connected with a first rotating rod (401) through a bearing, the other end of the first rotating rod (401) is fixedly connected with a first rotating screw (501), the inner wall of the inner cavity of the supporting rod (4) is rotationally connected with a second rotating rod (407) through a bearing, the other end of the second rotating rod (407) is fixedly connected with a second rotating screw (601), the outer wall of the first rotating rod (401) is fixedly provided with a first sprocket (405), the outer wall of the second rotating rod (407) is fixedly provided with a second sprocket (408), and the outer wall of the first sprocket (405) is in transmission connection with the outer wall of the second sprocket (408) through a transmission chain (406).
  2. 2. The ultrasonic imaging logging device for detecting coalbed methane, as claimed in claim 1, wherein the inner wall of the inner cavity of the first fixed block (5) is provided with a moving groove (505), the inner wall of the moving groove (505) is movably clamped with a moving block (506), and the moving block (506) is fixedly arranged on the outer wall of the first extrusion block (502).
  3. 3. An ultrasonic imaging logging device for coal bed gas detection according to claim 2, wherein a turbine (402) is fixedly arranged on the outer wall of the first rotary rod (401), a rotary motor (403) is fixedly arranged on the inner wall of the inner cavity of the base (1), a worm (404) is fixedly arranged on the output end of the bottom of the rotary motor (403) and extends downwards through the base (1), and the worm (404) is meshed with the turbine (402).
  4. 4. The ultrasonic imaging logging device for detecting coalbed methane, which is characterized in that a sliding rod (307) is fixedly arranged at the bottom of the base (1), a sliding block (306) is fixedly arranged on the outer wall of the connecting rod (301), a groove is formed in the top of the sliding block (306), and the sliding rod (307) is movably clamped in the groove formed in the top of the sliding block (306).
  5. 5. An ultrasonic imaging logging device for coal bed gas detection according to claim 4, wherein a rotating motor (302) is fixedly arranged at the bottom of the connecting rod (301), the top of the ultrasonic detector (3) is fixedly arranged on the bottom output end of the rotating motor (302), and a conical block (305) is fixedly arranged at the bottom of the ultrasonic detector (3).
  6. 6. The ultrasonic imaging logging device for coal bed gas detection according to claim 5, wherein a protective cover (203) is fixedly arranged at the top of the base (1), the protective cover (203) is sleeved outside the controller (2), a display screen (201) is arranged on the outer wall of the controller (2), and a control key (202) is arranged on the outer wall of the controller (2).
  7. 7. The ultrasonic imaging logging device for coal bed gas detection according to claim 6, wherein a connecting plate (101) is fixedly arranged on the outer wall of the base (1), a fixing bolt (102) penetrates through the top of the connecting plate (101), and the fixing bolt (102) extends into the ground around a logging well.

Description

Ultrasonic imaging logging device for coal bed gas detection Technical Field The invention relates to a coalbed methane detection assembly, in particular to an ultrasonic imaging logging device for coalbed methane detection, and belongs to the technical field of coalbed methane detection. Background The coalbed methane is a product of coal deterioration, is unconventional natural gas, is an emerging potential energy with huge reserve, is generally self-generated and self-stored and adsorbed on the surface of coal molecules, and needs to be detected by an ultrasonic logging technology in the coalbed methane exploitation process, so that the condition of the coalbed methane is known, and the follow-up exploitation plan is convenient. In the prior art, an ultrasonic detector is inserted into a borehole to perform ultrasonic scanning on the inside of the borehole, and the inside condition of the borehole is displayed and recorded through a display, but the conventional ultrasonic imaging logging device has certain limitation in the use process, and as the depth position of coalbed methane in the borehole is unknown, the ultrasonic detector needs to be detected at different positions in the borehole because the position is not fixed, and the ultrasonic detector needs to be continuously extended to the deep position of the borehole, and the prior art is mainly used for fixing the device at a wellhead, so that the stability is poor, the phenomenon of shaking easily occurs when the ultrasonic detector moves, the scanning effect is influenced, and the scanning image is caused to generate errors. Disclosure of Invention The invention achieves the above object by the following technical scheme, an ultrasonic imaging logging device for coal bed gas detection, comprising: The device comprises a base, a controller and an ultrasonic detector, wherein the ultrasonic detector is arranged below the base, the bottom of the ultrasonic detector is inserted into a logging borehole, the controller is arranged above the base, and the controller is used for controlling the ultrasonic detector to detect coal bed gas; The base bottom is provided with flexible subassembly, and this flexible subassembly is used for adjusting ultrasonic detector position degree of depth, flexible subassembly includes driving motor, rotatory screw rod and connecting rod, driving motor is fixed to be set up at the base inner chamber, and driving motor bottom output pass the base downwardly extending and with rotatory screw rod fixed connection, connecting rod threaded connection is on rotatory screw rod outer wall, and ultrasonic detector sets up on the connecting rod. Preferably, the base bottom is fixedly provided with the bracing piece, bracing piece outer wall fixed mounting has first fixed block, first fixed block inner chamber inner wall activity grafting has first rotation screw rod, first rotation screw rod outer wall threaded connection has first extrusion piece, first extrusion piece right-hand member passes first fixed block and extends and fixedly be provided with first push pedal right, first push pedal right wall is fixed to be glued and is had the slipmat. Preferably, the inner wall of the inner cavity of the first fixed block is provided with a moving groove, the inner wall of the moving groove is movably clamped with a moving block, and the moving block is fixedly arranged on the outer wall of the first extrusion block. Preferably, the outer wall of the supporting rod is fixedly provided with a second fixing block, the inner cavity of the second fixing block is provided with a second rotating screw, the outer wall of the second rotating screw is in threaded connection with a second extrusion block, and the right end of the second extrusion block penetrates through the second fixing block to extend rightwards and is fixedly provided with a second pushing plate. Preferably, the inner wall of the inner cavity of the supporting rod is rotationally connected with a first rotating rod through a bearing, the other end of the first rotating rod is fixedly connected with a first rotating screw rod, the inner wall of the inner cavity of the supporting rod is rotationally connected with a second rotating rod through a bearing, the other end of the second rotating rod is fixedly connected with the second rotating screw rod, the outer wall of the first rotating rod is fixedly provided with a first sprocket, the outer wall of the second rotating rod is fixedly provided with a second sprocket, and the first sprocket is in transmission connection with the outer wall of the second sprocket through a transmission chain. Preferably, the turbine is fixedly arranged on the outer wall of the first rotary rod, the rotating motor is fixedly arranged on the inner wall of the inner cavity of the base, the output end of the bottom of the rotating motor penetrates through the base to extend downwards and is fixedly provided with the worm, and the worm is meshed with