清洁压裂液对阜东斜坡区头屯河地层伤害研究  

Study on the formation damage mechanisms of clean fracturing fluid on Toutun River formation of Fudong slope area

作　　者：马万正[1] 申金伟[2] 张敏 于文芳 

机构地区：[1]中国石油新疆油田分公司勘探公司,新疆克拉玛依834000 [2]中国石油大学(华东)石油工程学院,山东青岛266580 [3]中国石油西部钻探工程有限公司试油公司,新疆克拉玛依834000 [4]中国石油新疆油田分公司实验检测研究院,新疆克拉玛依834000

出　　处：《西安石油大学学报（自然科学版）》2013年第5期83-88,1,共6页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家自然科学基金项目"化学驱油体系油水界面流变性及其对毛管数模型作用机制研究"(编号:51104170)

摘　　要：由十八烷基三甲基氯化铵(1831)、水杨酸钠、KCl制备了清洁压裂液,通过流动实验系统评价了清洁压裂液静滤失、动滤失对阜东斜坡区头屯河地层特低渗透砂砾岩岩心渗透率的影响.结果表明,清洁压裂液静滤失对阜东岩心伤害率可达30%左右,动滤失对阜东岩心伤害率很小.进一步通过分析破胶液黏度、润湿反转作用、乳化作用等因素,发现清洁压裂液与岩心的油相发生乳化作用是导致岩心静滤失伤害的主要原因.A clean fracturing fluid is prepared using octadecyl trimethyl ammonium chloride( 1831),sodium salicylate and KCl.The damage of the static filtration and the dynamic filtration of the clean fracturing fluid on the permeability of the extra-low permeability conglomerate cores from Toutun River formation of Fudong slope area is evaluated by flow experiments. The results show that,the damage of the static filtration of the clean fracturing fluid on the conglomerate cores can reach to about 30%,and the damage of its dynamic filtration on the conglomerate cores is a little. According to the analysis of the viscosity of broken gel fracturing fluid,the wettability reversal effect and emulsification,it is held that the emulsification between the clean fracturing fluid and the oil phase in the core is the main reason leading to the static filtration damage.

关 键 词：清洁压裂液 特低渗透油藏 滤失 压裂液伤害 

分 类 号：TE258[石油与天然气工程—油气井工程] TE357