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High-pressure capsule hole-fixing device

A capsule and hole-fixing technology, which is applied in wellbore/well components, earthwork drilling, sealing/isolation, etc., can solve problems such as too long drilling, long construction hours, and excessive consumables, and achieve high bearing capacity, Cost saving and rapid hole fixation

Pending Publication Date: 2017-08-29
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the purpose of the present invention is to provide a high-pressure capsule hole-fixing device to solve the existing problems of the existing spray-proof hole-fixing device, such as too long drilling, too many consumables, and long construction hours.

Method used

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] Such as figure 2 As shown, the high-pressure capsule hole-fixing device in the present invention includes an inner tube 4, a front sealing tube 5 and a rear sealing tube 6 arranged at both ends of the inner tube 4, and a capsule 7, which is set outside the inner tube 4 And the two ends are respectively connected with the front sealing tube 5 and the rear sealing tube 6, and the front sealing tube 5, the capsule 7, the rear sealing tube 6 and the inner tube 4 together form a filling cavity, and the front sealing tube 5 is provided with a filling cavity The connected interface is used to connect to an external high voltage source.

[0018] In this embodiment, the front sealing tube 5 and the rear sealing tube 6 are provided with O-rings 8 correspondingly to ensure the tightness; the inner tube 4 is provided with a limit nut 9, and th...

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Abstract

The invention discloses a high-pressure capsule hole-fixing device. The high-pressure capsule hole-fixing device comprises an internal tube, a front sealing tube, a rear sealing tube and a capsule, wherein the front sealing tube and the rear sealing tube are arranged at the two ends of the internal tube; and the capsule is arranged outside the internal tube in a sleeving mode, moreover, the two ends of the capsule are connected with the front sealing tube and the rear sealing tube correspondingly, the front sealing tube, the capsule, the rear sealing tube and the internal tube form a filling cavity together, and a connector communicating with the filling cavity is arranged on the front sealing tube. The whole length of the high-pressure capsule hole-fixing device for coal mines is smaller than 1 m, so a hole needed to be constructed is very short, so that time and labor are both saved; and the hole-fixing device adopts the capsule to replace cement to serve as a hole-fixing medium, and has the advantages that hole fixing is rapid and convenient, and the bearing capacity is high, and meanwhile, reuse can also be achieved, so that the cost investment is saved greatly.

Description

technical field [0001] The invention belongs to the field of drilling and mining of soil layers or rocks, and in particular relates to a high-pressure capsule hole fixing device. Background technique [0002] When constructing gas and water prevention outburst holes in coal mines, blowout prevention devices must be installed outside the holes to prevent safety accidents. One end of the hole-fixing device for coal mines is fixed in the hole, and the other end is connected to the blowout preventer outside the hole. [0003] At present, the hole-fixing device used in the construction of gas and water prevention outburst holes in coal mines is relatively simple, as shown in the attached figure 1 As shown, the existing hole-fixing device is composed of steel pipe 3, cement 2, etc. When in use, first construct a rock hole with a larger aperture and a length of 10-15m, then place the steel pipe 3 of the same length in the hole, and finally place it in the hole. Cement 2 is inject...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/13
CPCE21B33/13
Inventor 辛德忠万军陈航吕晋军罗华张始斋刘小华陶勇蒲剑宋玉壁李和祥唐敏梁佐兴石磊
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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