乳化石蜡的研制与评价

The Laboratory Preparation and Evaluation of a Emulsified Wax

随着钻井技术的发展和国家对环境保护力度的加大,越来越需要配伍性好、一剂多效、生产成本低、化学与生物毒性低的钻井液处理剂。对用转相乳化法制备乳化石蜡的工艺进行了研究,对乳化石蜡的性能与其同类产品进行了对比评价。实验结果表明,在最佳工艺参数条件下制备出的乳化石蜡稳定性和分散性良好;由于加入了2%多元醇作防冻液,该乳化石蜡的凝固点为-10℃;加入少量该处理剂即可大幅度提高钻井液润滑性,改善其抑制性能,并且对钻井液流变性能无影响,各种性能均优于同类产品。

A wax manufacturing technique using phase reversion method was studied in laboratory.Emulsified wax prepared with this technique was evaluated on its performance in comparison with other similar products.The emulsified wax made under optimum reaction conditions has good stability and dispersion performances.The freezing point of the wax is reduced to-10℃ because of the addition of a polyhydric alcohol at 2% as an antifreeze.The lubricity and inhibitive capacity of drilling fluids treated with small amount of this wax can be greatly improved,without sacrificing the rheology of the drilling fluids treated.