废弃钻井液无害化处理技术及应用

Innoxious treatment of wasted drilling fluid

为解决废弃的钻井液对周围的土壤及地下水源造成污染,中原油田开展了废弃钻井液无害化处理技术的研究工作。该技术是向废弃钻井液土池中加入适量配比的硅酸盐、氧化物等,通过一定时间的物理化学变化,使其中的有害成分转化成像土壤一样的固体。固化后的废弃物符合国家环保标准的要求,可有效防止再次污染。中原油田应用该技术,每年可以复耕土地约8×10 4m2 。

Zhongyuan oilfield conducts a study on innoxious treatment of wasted drilling fluid to eliminate the contamination to soil and underground water source. This technology is to add silicate and oxide at proper proportion into wasted drilling fluid pit to change objectionable constituents into soil like solid through physical and chemical changes after a certain period of time. The solidified wastes conform to national environment protection standard. By using this technology, Zhongyuang oilfield can return about 8×10~4m^2 to cultivated land each year. This technology has significant meaning to environment and land protection.