用含油污泥制备油田调剖剂

Preparation of Profile Control Agent for Oilfield from Oily Sludge

采用油田含油污泥研制了油田调剖剂（含油污泥调剖剂）,对其性能进行了评价,并进行了现场应用.综合考虑性能成本等因素,含油污泥调剖剂的最佳配方为（w）：聚丙烯酰胺0.20％,交联剂A 0.30％,稳定剂B 0.15％,含油污泥10％～20％.含油污泥调剖剂对岩心的封堵率比常规调剖剂高3.5％,且二者对岩心的封堵率均大于90％.含油污泥调剖剂现场应用5井次,累计处理含油污泥1 880t,注水压力平均上升2MPa,累计增油160t,减水6 500 m3,经济创效583 000元,投入产出比为1∶1.5.

The oily sludge profile control agent for oilfield was prepared from oily sludge.The performance evaluation and field application of the profile control agent were carried out.Considering the factors of performance and cost,the optimum formula of the profile control agent is as follows （w）：polyacrylamide 0.20％,crosslinking agent A 0.30％,stabilizing agent B 0.15％,oily sludge 10％-20％.The plugging efficiency of the profile control agent is higher than that of the conventional profile control agent by 3.5％,and the plugging efficiencies of the two agents are all more than 90％.Using the oily sludge profile control agent in 5 wells of oilfield,1 880 t of oily sludge was treated,the average water injection pressure is increased by 2 MPa,the oil production is increased by 160 t,the water consumption is reduced by 6 500 m3,the economic benefit is 583 000 yuan,and the input-output ratio is 1 ∶ 1.5.