Earthquake well gun sealing device and method for pressing interference wave
A technology for suppressing interference and plugging devices, which is applied in earthwork drilling, sealing/isolation, wellbore/well components, etc., and can solve problems such as preventing rock from being ejected, false plugging, and threats to the life safety of staff
Active Publication Date: 2020-10-23
山西省煤炭地质物探测绘院
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Problems solved by technology
[0002]At present, in the field of seismic exploration, when collecting field construction data, it is often necessary to use explosives in the blast hole for blasting excitation. Under the influence of elastic medium, various vibrations are generated. After drilling to a certain depth with corresponding tools, explosives are inserted into the blast hole. In order to improve the blasting energy, the blast hole will be blocked with soil, so that the blasting force is concentrated under the explosive. However, after the actual landfill, due to the plasticity of the rock and soil and the uncontrollable contact compactness, the sealing is not solid. The impact force released by the explosives in the depth of the blast hole spreads upward along the blast hole, and it is easy to push the sealing layer out. Disperse the blasting force, affect the effective wave reflection energy, and reduce the signal-to-noise ratio. Even under the action of rock and soil compaction, as the sediment layer density increases, the seismic wave propagation speed increases accordingly, and the expected effect is still not achieved, which affects the reliability of the collected data. The accuracy is difficult to achieve the desired effect, and the safety after the explosion is also low, and poses a threat to the life safety of the staff
[0003] Bulletin No. CN101349759 discloses a plugging method for seismic source blast holes, which is characterized in that it includes the following steps: preparing a sealing agent forming cylinder for seismic exploration; Put the sealing agent into the inner liner from the opening end of the inner liner, compact it to the required charge density, and then put the inner liner filled with the sealing agent into the inner cavity of the plastic shell to form a section of seismic exploration sealing agent Powder column: after the source blasthole is filled with the source charge, connect 2~6 seismic exploration sealing agent columns to each other to form a seismic exploration sealing agent column group, put it into the source blasthole, and confirm that it has fallen to the source At the bottom of the blast hole; when the seismic exploration sealing agent powder column assembly is inserted into the source blast hole, the water in the seismic source blast hole will submerge the seismic exploration sealing agent powder column assembly. This device cannot prevent the rock from being ejected during the explosion, and personnel have Security risks
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[0027]A kind of seismic well gun plugging device for suppressing interference wave of the present invention is realized in this way: a kind of seismic well gun sealing device for suppressing interference wave of the present invention is made up of plugging structure, supporting structure and driving structure, and supporting structure is made of square prism (1), main screw sleeve (2), angle adjustment knob (4), ground support rod (5), auxiliary screw sleeve (6), fixed plate (12), connecting ear (13), guide sleeve (18) , screw sleeve connection male port (24) and screw sleeve connection female port (25), the guide sleeve (18) is fixed on the fixed plate (12), and the fixed plate (12) is equipped with a plurality of equiangular The distributed connection ears (13), the ground support rod (5) are hinged and placed on the fixed plate (12), and fixed by the angle adjustment knob (4), and the main screw sleeve (2) is screwed and placed on the guide sleeve (18) Inside, the outer wal...
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The invention discloses an earthquake well gun sealing device and method for pressing an interference wave which can attach to and seal the aperture of a gun hole, prevent rock from ejecting instantaneously, and protect the life safety of the personnel. The device and method are characterized in that a guide drum is fixedly arranged on a fixing disk, the fixing disk is provided with a plurality ofconnecting lugs distributed in a equal angle mode, and a ground support rod is hinged to the fixing disk, and is fixed through an angle adjusting rotary knob. A main barrel is arranged in the guide drum in a screwed mode, threads are arranged on the outer wall of the main barrel wholly, one end of the main barrel penetrates put of the guide drum and is located above the guide drum, the other endof the main barrel penetrates out of the guide drum and is located below the guide drum, the other end of the main barrel is provided with a barrel connecting male opening, one end of an auxiliary barrel is provided with a barrel connecting female opening, the aperture of the gun hole can be attached and sealed, the rock can be prevented from ejecting instantaneously, the life safety of the personnel can be protected, a soil sealing layer can be prevented from ejecting, and the noise interference can be effectively lowered.
Description
technical field [0001] The invention relates to a seismic well shot blocking device and method for suppressing interference waves, and relates to a blocking device and method for seismic well shot suppressing interference waves, belonging to the field of geophysical method seismic exploration. In particular, it relates to a device and method capable of fitting and sealing the hole diameter of a blasthole, preventing rocks from being ejected instantly, and protecting personnel's life safety. Background technique [0002] At present, in the field of seismic exploration, when collecting field construction data, it is often necessary to use explosives in blastholes for blasting excitation. After blasting, various vibrations are generated due to the influence of various elastic media on the ground and underground. After a certain depth, the explosives are stuffed into the blast hole. In order to increase the blasting energy, the blast hole will be blocked with soil, so that the b...
Claims
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Login to View More IPC IPC(8): E21B33/13E21B41/00
CPCE21B33/13E21B41/00
Inventor孔祥忠李莲英文红伟田忠斌任斗金李晓鹏
Owner山西省煤炭地质物探测绘院