耐高温高强度调剖剂的研制与性能评价——以五号桩油田桩75块为例  

Development and performance evaluation of profile control agent with high temperature resistant and high strength——by taking Zhuang 75 block in Wuhaozhuang oilfield as an example

作　　者：姜涛[1] 张杰[1] 滕学伟[1] 侯洪涛[1] 谢桂学[1] JIANG Tao;ZHANG Jie;TENG Xuewei;HOU Hongtao;XIE Guixue(Zhuangxi Oil Production Plant of Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257237,China)

机构地区：[1]中国石化胜利油田分公司桩西采油厂,山东东营257237

出　　处：《石油地质与工程》2020年第5期123-126,共4页Petroleum Geology and Engineering

摘　　要：针对五号桩油田桩75块地层温度高、储层非均质性强、高渗透条带发育、注水后油井含水上升快,常规聚合物冻胶调剖剂适应性差的难题,研制了一种耐高温、高强度的硅盐树脂体系调剖剂。利用室内实验优化了调剖剂的配方,评价了调剖剂的溶解时间、成胶时间、固化强度、耐温性能以及耐盐性能;通过岩心封堵实验,评价了调剖剂在岩心中的注入能力、封堵能力、耐水冲刷能力。结果表明,硅盐树脂溶液黏度低,易注入;耐温150℃,抗矿化度200 000 mg/L,固化强度大于200 kPa;硅盐树脂封堵性能强,耐冲刷性能好,经100.0 PV的注入水冲刷,对岩心堵塞率仍大于92.0%,满足桩75块油藏调剖工艺的要求,可有效提高开发效果。The reservoir of Zhuang 75 block in Wuhaozhuang oilfield is characterized by high formation temperature, serious reservoir heterogeneity, high permeability zone development, and rapid water increase after water injection. For such a high temperature reservoir, the commonly used polymer gel profile control agent has low strength and is easy to dehydrate at high temperature, resulting in poor adaptability. Therefore, a profile control agent of silicone resin with high temperature resistance and high strength is developed. The formulation of profile control agent was optimized in laboratory experiment, and the dissolution time, gel forming time, curing strength, temperature resistance and salt resistance of profile control agent were evaluated. Through the core plugging experiment, the injection ability, plugging ability and water erosion resistance of profile control agent in the core were evaluated. The experimental results show that the silicone resin solution has low viscosity and is easy to be injected into the formation, the temperature resistance is 150℃, the salinity resistance is 200 000 mg/L, and the strength is more than 200 kPa. The silicone resin has a strong sealing performance and good water erosion resistance, after flushed 100 PV by the injected water, the core plugging rate is still above 92%, which meets the requirements of profile control in Zhuang 75 block and can effectively improve the development effect.

关 键 词：五号桩油田 耐高温 高强度 硅盐树脂 调剖剂 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]