涠洲12-1油田储层保护修井液技术  

Study on Reservoir Protection Workover Fluid Technology in Weizhoul2-1 Oilfield

作　　者：卜继勇[1] 谢克姜[1] 车伟林[1] 胡文军[1] 程玉生[1] 

机构地区：[1]中海油田服务股份有限公司油田化学事业部湛江基地,广东湛江

出　　处：《钻井液与完井液》2012年第3期51-53,95,共3页Drilling Fluid & Completion Fluid

摘　　要：涠洲12-1油田为复杂断块油田,储层物性较差,以中孔中渗和中孔低渗为主,存在多种敏感因素,容易受到伤害。通过对该油田储层伤害的机理分析,提出了解决储层保护问题的修井液技术对策。从现场应用的统计数据看,12口油井应用该修井液技术修井后产能恢复快,所有井作业均较顺利,部分油井产能得到明显提高,其中WZ12-1-B8井修井后产液能力提高90%,产油较修井前高出近5倍;WZ12-1-A8修井后产液能力提高42.3%,产油能力提高36.8%。The reservoir physical properties of Weizhoul2-1 oilfield are poor that is of medium-porosity and medium-permeability and medium-porosity and low-permeability, where existing many sensitivity factors, which is easy to bedamaged.Through analyzing the damage mechanism, a technology of reservoir protection is developed, and the applicationsof 12 wells are very successful, in which the liquid production of well WZ12-1-B8 is increased by 90%, the oil production isfive times of before, and in well WZ12-1-A8, the liquid and oil productions are increased by 42.3% and 36.8%.

关 键 词：钻井完井液 修井液 防止地层损害 隐形酸 涠洲12-1油田 

分 类 号：TE258[石油与天然气工程—油气井工程]