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Method for plugging limestone drill holes through high pressure chemical grouting technology

A high-pressure chemical and grouting technology, which is applied in earthwork drilling, sealing/isolation, wellbore/well components, etc., can solve problems such as inability to achieve safe sealing, and achieve obvious water blocking effect, good effect, and wide penetration range wide effect

Active Publication Date: 2017-08-11
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing cement double-fluid slurry is generally used for sealing, but the purpose of safe sealing cannot be achieved. Based on this, a method of using high-pressure chemical grouting technology to seal limestone drilling is studied, which is a good solution to mine blocked security issues

Method used

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  • Method for plugging limestone drill holes through high pressure chemical grouting technology

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Embodiment Construction

[0016] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0017] Such as figure 1 Shown: a method for plugging limestone boreholes using high-pressure chemical grouting technology, characterized in that the method is chemical grouting, and the chemical grouting is to inject chemical plugging materials into limestone boreholes through high-pressure injection.

[0018] As one of the preferred modes of the present invention, the chemical plugging material adopts glue injection.

[0019] As one of the preferred modes of the present invention, the method includes the following steps:

[0020] (1) Before grouting construction, it is necessary to observe the surrounding rock s...

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Abstract

The invention discloses a method for plugging limestone drill holes through the high pressure chemical grouting technology. The method is characterized in that chemical grouting is adopted, and according to chemical grouting, a chemical plugging material is injected into the limestone drill holes at high pressure. Through successful application of the high-pressure chemical material grouting technology in down-hole limestone drill hole plugging, plugging of the water outflow drill holes through chemical material high-pressure grouting has the advantages of being rapid in plugging, good in effect and wide in permeation range, broken rock mass can be reinforced into a whole, the water plugging effect is obvious, a certain reference effect is achieved for treatment of abnormal water outflow drill holes and roadway local water spraying sections, and meanwhile a good effect can also be achieved for crushed zone chemical grouting surrounding rock reinforcing in working faces.

Description

technical field [0001] The invention relates to the technical field of plugging limestone boreholes, in particular to a method for plugging limestone boreholes by using high-pressure chemical grouting technology. Background technique [0002] During the mining process of coal mines, coal resources are affected by factors such as structure and coal seam thinning. When mining hard-to-mining coal seams, there is no safe and reliable mining process. Occupational accidents, roof collapse, and collapse often occur. The degree of propulsion is extremely low, the input of materials and labor is huge, and the cost per ton of coal is extremely high. Safe and economical mining cannot be achieved. If the borehole is not closed or the gate valve fails, the mine will gushes water, so a part of the coal mine block will be blocked at this time, and it will be unsealed for mining and excavation after the technology is mature. The existing cement double-fluid slurry is generally used for sea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/13
CPCE21B33/13
Inventor 丁海峰尹宏昌刘凯
Owner HUAINAN MINING IND GRP