欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
现有的聚合物类或纤维性预交联体膨颗粒堵剂以及聚合物凝胶堵剂在高矿化度下耐温性能差，不适用于温度高于120℃的高盐油藏的堵水作业。为了改善高温高盐油藏的堵水技术，研制了一种耐高温高盐的柔性堵剂。该堵剂是不溶于水、微溶于油、可任意变形、拉伸韧性强的颗粒，其粒径范围为1～8mm。该柔性堵剂在高温高盐条件下的化学稳定性好，可二次黏结形成完整的封堵层。在塔河油田油藏条件下，柔性堵剂用量从0．03PV增至0．2PV，封堵效果出现突跃式升高，可对油藏的裂缝和高渗通道形成强封堵。在堵水作业中这种堵剂如果造成油井误堵，使用甲苯就极易解堵，是一种既可在高温高盐下形成稳定封堵又可安全使用的堵剂。图7表1参10
英文摘要：
Swellable gel particles of pre-crosslinking polymer/fiber and polyacrylamide gel cannot be used as water shutoff agents in the reservoir of high temperature （〉120℃） and salinity for their bad thermal stability in brines of high salinity. A flexible water shutoff agent （SR-D1） applicable to those reservoirs is developed. The agent is particles with a size range from 1 mm to 8mm, and does not dissolve in water, but is slightly soluble in oil, and with a high elastic deformation capability. Its chemical stability is high under the high temperature and salinity conditions, and it could form integrated plugged zones by means of secondary bond. Under the reservoir condition of Tahe Oilfield, the plugging efficiency increases drastically with the SR-D1 volume increasing from 0.03PV to 0.2PV, and the fractures and high permeability channels are sealed strongly in the reservoir. It is easy to be broken down with methylbenzene if misplugging happens.
同期刊论文项目
同项目期刊论文
期刊信息
位置：