大庆油田外围开发井甲酸盐钻井液研究与应用  

Study and application of formate based drilling fluid in the development wells of the outer skirt of Daqing

作　　者：韩玉华[1] 顾永福[1] 王树华[1] 宋瑞宏[1] 于永哲[1] 郭缨[1] 

机构地区：[1]大庆石油管理局钻井研究所

出　　处：《钻井液与完井液》2002年第5期28-30,共3页Drilling Fluid & Completion Fluid

摘　　要：室内实验研究了甲酸盐的特性,分析了甲酸盐钻井液的作用机理,针对储层特点,确定了应用于大庆外围低压低渗透油田的甲酸盐钻井液体系,并进行了现场试验和推广应用。室内实验和现场应用结果表明,甲酸盐钻井液性能稳定,钻井完井施工顺利,无井塌、井漏、卡钻事故发生,能够满足(?)178 mm和(?)200 mm井眼开发井钻井施工要求;抑制性强,井壁稳定效果好,井眼规则,井径扩大率小;机械钻速高,油层浸泡时间短,是一种有利于储层保护和增产的钻井液体系。Characteristics of formate brine and its working mechanisms are analyzed, and formate based drilling fluid system is selected for the outer skirt oilfields with low pressure and low permeability. Laboratory tests and field using show that this system has stable performances, drilling and completion operations are smoothly carried out without hole sloughing, lost circulation and pipe sticking, and it is suitable for drilling the 178 mm and 200 mm development wells. It also has such advantages as good inhibition and hole stabilization, regular borehole and small hole enlargement, high penetration rate, and short soaking time in the production zone, etc.

关 键 词：大庆油田 外围开发井 甲酸盐钻井液 研究 应用 性能 井眼稳定 防止地层损害 大庆油田 

分 类 号：TE254.3[石油与天然气工程—油气井工程] TE258