水平井酸化暂堵转向施工工艺优化研究  

OPTIMIZATION OF TEMPORARY PLUGGING DIVERSION TECHNOLOGY DURING HORIZONTAL WELL ACIDIZATION

作　　者：孟莲香[1] 刘红星[1] 姜勇[1] 张兰芳[1] 张云福 黄丽仙[1] 孟令云[3] 

机构地区：[1]中原油田分公司采油工程技术研究院 [2]中石化天然气分公司 [3]中石化中原油田分公司采油一厂

出　　处：《钻采工艺》2013年第5期100-102,17,共3页Drilling & Production Technology

摘　　要：对水平井非均质储层实施酸化常出现大量酸液进入高渗透层,通过优选油溶性暂堵剂配方、暂堵剂浓度与用量、控制施工时间与入井酸液性能指标等,能有效暂堵高渗透层,让更多酸液进入低渗透层而使储层获得"均匀"酸化,实现暂堵转向酸化工艺。该项工艺技术的成功应用,让非均质储层得以"均匀"酸化,并充分改善低渗透储层渗透率,提高水平井酸化效果和单井原油产量。When acidizing operation of horizontal well is in heterogeneous reservoir,a lot of acid usually enter into high permeability layer. Through optimizing the formula,concentration and amount of oil soluble temporary plugging agent,and controlling construction time,the temporary plugging agent could plug high permeability layer effectively. It let more acid enter into the low permeability layer and made the reservoir acidize equally,So as to realize temporary plugging diversion acidizing process. The successful application of the temporary plugging diversion acidizing technology made heterogeneous reservoir acidize equally,improved the permeability of low permeability reservoir and the crude production rate of single well.

关 键 词：水平井 油溶性暂堵剂 复配 转向 酸化 解堵 

分 类 号：TE39[石油与天然气工程—油气田开发工程]