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Rock stratum fracture detecting device

A detection device and fracture technology, which is used in surveying, wellbore/well components, earth-moving drilling, etc., can solve the problems of poor sealing quality and inability to inspect the fractured zone of rock formations in the borehole.

Inactive Publication Date: 2012-11-28
HUAINAN MINING IND GRP
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Problems solved by technology

[0004] The invention provides a rock formation fissure detection device, which is used to solve the problem that the rock formation fissure zone in the drill hole cannot be inspected before the hole is sealed, resulting in poor sealing quality

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  • Rock stratum fracture detecting device

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0020] figure 1 It is a schematic diagram of the structure of the rock formation fissure detection device. Such as figure 1 As shown, the rock formation fissure detection device provided in this embodiment includes: an elastic bag 1 , an inflatable tube 2 , a pipe joint 3 and a pressure detection device 4 . The pipe joint 3 communicates with the elastic bag 1. After the elastic bag 1 is filled with medium through the pipe joint 3, the elastic bag 1 can seal the drill hole 6 tightly. Specifically, the elastic bag 1 can be filled with water or air through the pipe joint 3 , can also be other media; the inflatable tube 2 passes through the elastic bag 1, the end of the inflatable tube 2 extends into the drill hole 6, the pressure detection device 4 communicates with the inflatable tube 2, and is blocked by the elastic bag 1 through the inflatable tube 2 After t...

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Abstract

The invention provides a rock stratum fracture detecting device comprising an elastic sac, a gas filled pipe, a pipe joint and a pressure detecting device. The pipe joint is communicated with the elastic sac, and a drill hole can be plugged tightly by the elastic sac after the elastic sac is full of medium through the pipe joint; and the gas filled pipe passes through the elastic sac, the pressure detecting device is communicated with the gas filled pipe, the drill hole plugged by the elastic sac is full of pressure air through the gas filled pipe, and the air pressure in the plugged drill hole can be detected by the pressure detecting device. By using the rock stratum fracture detecting device provided by the invention, whether a fracture exists in the drill hole can be judged according to the change condition of a pressure gauge on the pressure detecting device, and meanwhile, the position of the fracture can be judged through regulating the position of the elastic sac for many times.

Description

technical field [0001] The invention relates to a layer-penetrating drilling detection technology, in particular to a rock formation fissure detection device. Background technique [0002] The most basic link of the gas control project is sealing and drainage, and the sealing depends on the effect and quality of drainage. If you want to seal each borehole, you must take targeted measures in advance, and adopt different sealing processes for each borehole. [0003] During the sealing process, if there are rock formation fissures or obvious structural fissures in the borehole, if the specific location of the formation fissures cannot be fully grasped, it will be difficult to seal the borehole tightly. Pores are not saturated, resulting in air leaks. If the borehole is not sealed, it will be more time-consuming and laborious to repair the borehole again. Contents of the invention [0004] The invention provides a rock formation fissure detection device, which is used to so...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B47/06
Inventor 王磊李应辉李良林钱建兵赵庆伟季长征江格节
Owner HUAINAN MINING IND GRP
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