Sludge consolidating agent

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...

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 consolidating agent is still difficult to deal with the sludge and waste mud with high water content and high organic matter. Difficult, unable to achieve the purpose of reusing waste mud to achieve "turning waste into treasure"