陵水17-2气田完井液与储层保护技术研究  

Completion Fluid and Reservoir Protection Technology Used in LS17-2 Gas Field

作　　者：孟文波 张崇 任冠龙 董钊 苏剑波 崔应中 向兴金 MENG Wenbo;ZHANG Chong;REN Guanlong;DONG Zhao;SU Jianbo;CUI Yingzhong;XIANG Xingjin(Zhanjiang Branch of CNOOC,Zhanjiang 524057,China;Hubei HANC New Technology Co., Ltd.,Jingzhou 434000,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]湖北汉科新技术股份有限公司,湖北荆州434000

出　　处：《化学与生物工程》2020年第8期45-47,共3页Chemistry & Bioengineering

摘　　要：陵水17-2气田储层属于高孔高渗砂岩气藏,存在一定的盐敏损害。室内分析了储层盐敏损害因素,针对现场使用的高矿化度盐水完井液进行了模拟评价。结果表明,陵水17-2气田储层盐敏损害机制主要为矿化度变化带来的微粒脱落运移造成的渗透率变化以及可能存在的流体不配伍带来的结垢因素。甲酸钾完井液对陵水17-2气田投产效果影响不大,具有良好的储层保护效果,可满足现场作业要求。LS17-2 gas field belongs to high-porosity and high-permeability sandstone gas reservoir,and there is a certain amount of salt sensitivity damage.We analyzed the salt sensitivity damage factors affecting reservoir,and evaluated the high-salinity brine completion fluid used in the field.The results show that the mechanism of salt sensitivity damage in LS17-2 gas field is mainly described as follows:the permeability change is caused by the particle shedding and migration because of the change of salinity,and the scaling factor is caused by the possible fluid incompatibility.Potassium formate completion fluid has a negligible influence on the production effect of LS17-2 gas field,has good reservoir protection effect,and can meet the requirements of field operation.

关 键 词：气田 完井液 盐敏 适应性 储层保护 

分 类 号：TE254.3[石油与天然气工程—油气井工程]