摘要
针对胜利油田海上钻井液类型及特征,研究出了一套废弃钻井液处理工艺——化学强化固液分离技术。通过对两口井钻井液样品的试验,研究了脱稳剂类型、离心机转速、稀释比和离心时间等因素的影响,筛选出了脱稳剂,确定了最佳水力条件。对废弃钻井液固液分离出的钻井污水处理技术进行了研究,通过正交试验,筛选出了无机絮凝剂和有机助凝剂,并确定了其最佳加量。处理后的水质达到国家综合排放标准。
A waste drilling fluid treatment process, chemically enhanced solid-liquid separation, has been developed based on offshore drilling fluid system and performance in Shengli Oilfield. Factors such as destabilization agents, centrifuge rotation rate, dilution rate, centrifuge separation time have been studied by testing mud samples from two wells. Suitable destabilization agents and optimized hydrodynamic condition have been determined. The treatment of waste water from centrifuge separation was investigated. Inorganic and organic coagulation and flocculation agents have been selected through orthogonal test. The water quality after treatment meets with the national integrated waste-water discharge standard.
出处
《石油钻探技术》
CAS
北大核心
2008年第5期12-16,共5页
Petroleum Drilling Techniques
基金
国家高技术研究发展计划("863"计划)项目"优质无污染钻井液体系及废弃物处理技术"(编号:2006AA09Z334)部分研究成果
关键词
海上钻井
废泥浆处理
液固分离
污水处理
offshore drilling
waste mud treatment
liquid-solid separation
sewage disposal
