Sludge consolidating agent

A technology of consolidating agent and mud, applied in the field of consolidating agent, can solve the problems of poor water stability, large amount of mixing, inability to reuse waste mud, etc., and achieve the effect of accelerating the combination.

Inactive Publication Date: 2002-08-14
大庆油田建设设计研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter which kind of mud uses the commonly used consolidating agent at present, the dosage is large, the strength is low, the cost is high, and the water stability is poor. Moreover, this kind of consolidat

Method used

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Embodiment Construction

[0007] The present invention will be further described below:

[0008] The mud consolidation agent includes fly ash and lime powder, and is suitable for water-based mud. It is characterized in that: the components and proportioning are as follows in parts by weight:

[0009] If it meets the needs of water-based mud, polymer mud and mixed mud, it can be carried out as follows: 1-60 parts of sulphoaluminate cement clinker, 1-30 parts of raw gypsum powder, 1-60 parts of slag, 1-60 parts of lime powder 30 parts, 1-40 parts of fly ash, 1-15 parts of calcium carbide powder, and 1-15 parts of fluorspar powder are mixed to form a slurry consolidation agent with a specific gravity below 1.65.

[0010] If it meets the needs of polymer mud and mixed mud, it can be carried out as follows: on the basis of the above mud consolidation agent, add 1 to 20 parts of high-efficiency water reducer, soda ash Na 2 CO 3 1 to 20 parts, Yuanmingfen Na 2 SO 4 1-20 parts are mixed to form a mud conso...

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Abstract

A sludge consolidating agent for well field and road bed, which uses waste and used sludge as basic raw material, is prepared from thioaluminate as cernent clinker, gypsum powder, slags, lime powder,powdered coal ash, calcium carbide powder and fluorspar powder through proportional mixing to obtain low-specific-weight (less than 1.65) prdouct, and proportional mixing it with efficient water-reducing agent, Na2CO3 and Na2SO4 to obtain high-specific-weight product (higher than 1.65).

Description

(1) Technical field: [0001] The invention relates to a cementing agent which uses waste mud as a base material in well sites and roadbeds, and belongs to the mud cementing agent. (two) background technology: [0002] At present, most of the well sites and roadbeds in oil fields use cement, limestone and soil to lay the ground. The amount of cement and limestone is relatively large, and it also wastes a lot of land resources. Most of the drilling mud used in oil field drilling is not reused, which pollutes the environment in large quantities. Due to the fine particles of waste mud, high viscosity, high water content and not easy to dehydrate, the water and active substances in waste mud and fly ash are used to form strength by adding appropriate binders, which can be used as basic materials for well sites and roads. Waste mud generally has water-based mud: the water content is below 40% and does not contain polymers; polymer mud: the water content is below 40% and contains p...

Claims

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Application Information

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IPC IPC(8): C04B28/06C09K8/46
CPCC04B28/065C04B2111/0075C09K8/46Y02W30/91C04B14/322C04B14/365C04B18/08C04B18/141C04B22/064C04B22/10C04B22/126C04B22/147C04B2103/302
Inventor 王寿光刘利峰吴晓峰单文东崔丽英
Owner 大庆油田建设设计研究院
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