马王庙油田储层防膨抑砂剂优选及矿场试验  

OPTIMIZATION AND FIELD TEST OF AN ANTI-SWELLING AND SAND-INHIBITING AGENT FOR MAWANGMIAO OILFIELD

作　　者：龚兵[1] 

机构地区：[1]中国石化江汉油田分公司江汉采油厂

出　　处：《天然气勘探与开发》2015年第2期82-84,11,共3页Natural Gas Exploration and Development

摘　　要：马王庙新沟咀组储层黏土含量高,注水开发后储层含水上升,黏土膨胀运移造成储层出砂。在分析储层防膨抑砂机理基础上,通过对防膨抑砂剂的配伍性、防膨率、抑砂效果进行综合性能评价,优选出阳离子聚合物防膨率为92.7%的防膨抑砂剂DG,矿场试验5口井,出砂油井平均冲砂周期延长199天,防膨抑砂效果好,提高了新沟咀组出砂储层开发效果。There is rich clay in some reservoirs of Xingouzui Formation, Mawangmiao oilfield. After a waterflooding, the increased water cut may cause sand production due to clay swelling and migration. Based on the analysis of anti-swelling and sand-inhibiting mechanisms,through a comprehensive evaluation on the compatibility, anti-swelling rate and sand-inhibiting effect of an anti-swelling and sand-inhibiting agent, this study optimizes the DG agent with the92.7% of anti-swelling rate of cationic polymer. Five wells are tested and a satisfactory result is achieved. For a sand-producing well, its sand-washing cycle can be extended by 199 days on average. This agent may improve a development effect for sand-producing reservoirs of Xingouzui Formation.

关 键 词：黏土膨胀 出砂储层 防膨抑砂 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]