防膨稳定剂的优选及矿场应用  

Optimization and field application of antiswelling stabilizing agent.

作　　者：郭志华[1] 许星[1] 刘玉忠[1] 靳宝军[2] 衣春霞[2] 

机构地区：[1]胜利油田有限公司现河采油厂 [2]胜利油田有限公司采油工艺研究院

出　　处：《油气地质与采收率》2002年第1期79-82,共4页Petroleum Geology and Recovery Efficiency

摘　　要：粘土矿物的膨胀、破裂、分散、运移和堵塞是对高压低渗油藏储层伤害的主要因素之一。通过X射线衍射仪室内实验分析 ,对防膨稳定剂作了系统评价 ,对多种药剂进行了优选 ,克服了传统的防膨稳定剂离心法、膨胀仪法的一些弱点。通过河 14 6断块岩心室内分析 ,筛选出了适合该地区的防膨稳定剂的配方。矿场应用于河 2 -斜 4井注采试验井组 ,自 1998年 4月至今 ,其日产油能力为 82t、采油速度达 3.0 %以上 ,稳产 3年 ,取得了明显的开发效果。Swelling, cracking, dispersion, migration and plugging of clay minerals are the main factors of the reservoir damage in high-pressure low-permeability reservoirs. Antiswelling stabilizing agent is evaluated systematically through X-ray diffraction analysis and many agents are optimized. This method overcomes some shortages in the conventional centrifugal and expansion method. The suitable formulation of the agent is screened by laboratory analysis of the cores in He 146 fault block. Injection-production test in well group of He 2-Xie 4 using this agent achieved obvious effect of a daily production rate 82t/d, an oil recovery rate more than 3.0% and a stable production period of three years from April 1998 to the present. This successful study will provide guide to the efficient development of similar low permeability reservoirs.

关 键 词：低渗透油藏 防膨稳定剂 X线射衍射仪 现河庄油田 采收率 矿场应用 

分 类 号：TE39[石油与天然气工程—油气田开发工程]