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Rapid plugging agent

A plugging agent and fast technology, applied in the direction of drilling composition, chemical instruments and methods, etc., can solve the problems of short gelation time, long construction period and low plugging safety factor of cyanogen coagulant plugging agent

Inactive Publication Date: 2013-08-28
张家港市一达水泥混凝土外加剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These water blocking technologies have played an important role in the construction of urban underground buildings, civil air defense projects, and large-scale sewage pipe networks. However, the construction process of the high-strength chemical water blocking technology of sodium silicate is complex, difficult, and dangerous, and the amount of blocking agent is large. , Long construction period, low plugging safety factor; cyanocoagulant plugging agent with polyurethane formate as the main component has a short gel time, although the dosage is small, but the plugging strength is high, the plugging process is complicated, and the risk is high. The plugging thickness is small, so it should not be used for large-section plugging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] (1) Take by weight 50% of hemihydrate gypsum; 1.5% of magnetized barium hexaferrate; 60% of cement; 2% of accelerator; 2.5% of plasticizer;

[0008] (2) Preparation method

[0009] Add the ingredients of each component into the reaction kettle, stir and mix well, then let it stand for 1 hour, take it out for on-site plugging.

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PUM

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Abstract

The invention relates to a rapid plugging agent. The rapid plugging agent is mainly composed of hemihydrate gypsum, magnetized six barium ferrite, cement, a promoter, a plasticizer, a curing agent, etc. The rapid plugging agent has characteristics of rapid plugging speed, high activity, good plugging property and chemical stability, good rheological performance and uniform compressive strength ratio.

Description

technical field [0001] The invention relates to a rapid plugging agent, which belongs to the technical field of fine chemical preparations. Background technique [0002] With the continuous development of urban underground buildings, civil air defense projects and large-scale sewage pipe network construction, due to geological reasons, construction technology, and construction material problems, leakage, channeling, edge water, bottom water intrusion, Contradictions and problems such as premature water discharge, water flooding, and collapse have gradually emerged, which have seriously affected the entire construction progress and project quality. Therefore, the research and application of various types of plugging agents have increasingly received great attention from various research institutions. At present, a number of chemical plugging technologies have been developed in the market, such as high-strength chemical water plugging of sodium silicate, polymer water plugging...

Claims

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Application Information

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IPC IPC(8): C09K8/467
Inventor 顾宗法
Owner 张家港市一达水泥混凝土外加剂有限公司
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