多功能油层保护剂JQD的研制与应用  

Multifunctional additive used for reservoir protection in Xiaoguai Oilfield

作　　者：罗跃[1] 王志龙[1] 张小平[1] 周红灯[2] 刘德军 甘林 

机构地区：[1]江汉石油学院 [2]新疆石油管理局

出　　处：《钻井液与完井液》1999年第2期18-21,24,共5页Drilling Fluid & Completion Fluid

摘　　要：针对新疆小拐油田裂缝-孔隙型储层特点,开发研制了一种新型的兼具防漏堵漏及油层保护功能的JQD处理剂。该处理剂具有较好的油溶率、酸溶率,与现有钻井完井液体系配伍性良好,加工粒径可调,对1—4mm的裂缝堵漏效果良好。动态损害实验表明,JQD体系的岩心渗透率恢复值不小于80％。现场试验三口表明,JQD与钻井液配伍性良好,防漏堵漏效果显著,性能调整及维护方便,起下钻及电测顺利。三口井投产后,两口井产量分别为30和28t/d,一口井产气量为1.1×10~4m^3/d,说明储层得到了有效的保护,实现了“堵得住、解得开”的目标。Reservoir damage in Xiaoguai Oilfield is mainly caused by lost circulation because of large fractures in formation. A type of new additive JQD. which has the functions of anti-loss and plugging is develop thus. It is compatible with the drilling and completion fluid systems used currently, and is easily soluble in oil and acid. Dynamic test indicates that its permeability return is higher than 80%. Field use in three wells proved it to be effective in anti-loss and plugging, while it is easy to maintain and adjust, at the same time could do benefits on tripping and logging. Production rate of the two wells reached 30 t/d and 28 t/d respectively, and the other well produces 1. 1 × 104 cubic meters of gas.

关 键 词：多功能油层保护剂 JQD 研制 应用 裂缝性储集层 防止地层损害 防漏 堵漏 临时堵塞剂 

分 类 号：TE258.2[石油与天然气工程—油气井工程] TE39