Multifunctional Pneumatic Hole Sealing Device and Its Matching Hole Sealing Process

A sealing device, multi-functional technology, used in sealing/isolation, drilling composition, wellbore/well components, etc., can solve the problem of high operating quality requirements, affecting the drainage effect, and destroying the integrity of the rigid foam And other issues

Active Publication Date: 2015-11-04
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

) This purely manual sealing method has high requirements on the operating quality of the workers, and the workers need to send the sealing tube to the predetermined position in a short time, otherwise the polyurethane will cure in advance and the sealing will fail, and the hard foam will be destroyed due to the existence of the towel The integrity of the hole increases the permeability of the sealing section and affects the drainage effect

Method used

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  • Multifunctional Pneumatic Hole Sealing Device and Its Matching Hole Sealing Process
  • Multifunctional Pneumatic Hole Sealing Device and Its Matching Hole Sealing Process
  • Multifunctional Pneumatic Hole Sealing Device and Its Matching Hole Sealing Process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Depend on figure 1 A multi-functional pneumatic sealing device shown includes a pneumatic cylinder 36 with a material inlet and a material outlet 35 , an air pressure pipe 38 , a mixing joint 45 and a mixing pipe 31 . The feed port and discharge port 35 of the pneumatic cylinder 36 are respectively located at the top and bottom of the pneumatic cylinder 36, the feed port of the pneumatic cylinder 36 is provided with a sealing cover 49, and the discharge port 35 of the pneumatic cylinder 36 is provided with a flow regulating valve 33. The top of the pneumatic cylinder 36 is also provided with an air inlet, the pneumatic cylinder 36 is provided with a pointer type float level gauge 41, the pneumatic cylinder 36 is airtight, and there are two pneumatic cylinders 36 in total.

[0030] The air pressure pipe 38 communicates with a connecting pipe 37 , and the end of the connecting pipe 37 is connected to the first branch pipe 43 and the second branch pipe 40 . The two air in...

Embodiment 2

[0036] Depend on figure 1 with figure 2As shown in the pressure measuring drilling and sealing process, the gas drainage drilling and sealing device as described in Example 1 is first installed, and a certain amount of The black and white materials of the pre-proportioned polyurethane solution.

[0037] Before the sealing tube 54 is inserted into the borehole 58, four spacers are arranged at intervals on the outer ring of the sealing tube 54, and the spacers are rubber pads 52, and the four rubber pads 52 are respectively fixed on the outer ring of the sealing tube 54. On the four fixed discs 57 fixed at intervals, (of course, if there is no rubber pad 52, the separator can be replaced by a towel, or wrapped around the sealing tube 54), three regions are formed in turn between the four rubber pads 52 : Side area and middle area. There are two sealing conduits 47 connected to the outlet of the mixing tube 31 at the same time. The two sealing conduits 47 are inserted through...

Embodiment 3

[0043] Depend on figure 1 with image 3 In the shown drainage drilling and sealing process, the gas drainage drilling and sealing device as described in Embodiment 1 is first provided, and a certain amount of gas is respectively loaded into the two pneumatic cylinders 36 of the gas drainage drilling and sealing device The black material and the white material of the polyurethane feed liquid prepared in proportion in advance, and the pressure air pipe 38 are connected to the downhole pressure air pipeline.

[0044] Set two blocking pieces 70 on the drainage pipe 66 at intervals. The blocking pieces 70 are towels wrapped around the outer ring of the drainage pipe 66 respectively. between the blocking members 70, and bind the sealing conduit 47 on the extraction pipe 66.

[0045] Then the extraction pipe 66 is inserted into the predetermined depth in the coal seam borehole 58, and the pressure air pipe 38 is connected with the downhole pressure air pipeline, and is passed throu...

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Abstract

The invention discloses a multifunctional pneumatic sealing device, which comprises pneumatic cylinders with feeding holes and discharge holes, wherein air inlets are arranged at the top parts of the pneumatic cylinders; sealing covers are arranged at the feeding holes of the pneumatic cylinders; two pneumatic cylinders are arranged; the air inlets of the two pneumatic cylinders are connected with a pressure ventilation pipe; the discharge holes of the two pneumatic cylinders are connected with an inlet of a mixing pipe; the pressure ventilation pipe is also accessed into the inlet of the mixing pipe through a first branch pipe; and a volume damper is arranged on a connection pipe. The multifunctional pneumatic sealing device and the matched sealing process are multifunctional pneumatic polyurethane sealing device and matched sealing process capable of sealing a pressure borehole and sealing a drainage borehole, and being stable in sealing quality, controllable in sealing length and depth, saving materials, and being low in labor intensity.

Description

technical field [0001] The invention relates to a hole sealing device and a hole sealing process for underground pressure measuring holes, drainage holes and coal seam water injection in coal mines, and is mainly used for sealing underground pressure measuring holes, drainage holes and water injection holes. Background technique [0002] As one of the basic parameters of mine gas and an important measure to eliminate hidden dangers of gas accidents, gas pressure measurement and gas drainage play an important role in the prevention and control of mine gas, and both of these processes have the application of hole sealing technology. Sealing has become a key process of these two processes. The quality of sealing is directly related to the accuracy of gas pressure measurement and the efficiency of gas drainage. [0003] At present, the sealing methods of the pressure hole mainly include the hole sealing method of the apron hole sealer, the cement mortar sealing method, the apron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/13C09K8/42
Inventor 魏建平王云刚鄢桂云王登科李波李盟李满贵
Owner HENAN POLYTECHNIC UNIV
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