新型低分子纤维素压裂液的研究及其在致密油气藏的应用  

THE STUDY OF A NEW LOW-MOLECULAR-WEIGHT CELLULOSE FRACTURING FLUID AND APPLICATION IN TIGHT RESERVOIRS

作　　者：明华[1,2] 邱晓惠[1,2] 王肃凯 王丽伟[1,2] 杨战伟[1] 段瑶瑶[1] 

机构地区：[1]中石油勘探开发研究院廊坊分院,河北廊坊065007 [2]中石油油气藏改造重点实验室,河北廊坊065007 [3]西部钻探钻井工程技术研究院,新疆克拉玛依834000

出　　处：《精细石油化工》2016年第5期15-18,共4页Speciality Petrochemicals

基　　金：国家863项目(2013AA064800);国家科技重大专项"低渗特低渗油气储层高效改造技术"(2011ZX05013-003);中国石油股份公司课题"特低;超低渗油藏高效改造技术"(2011B-1202)

摘　　要：针对致密油气藏的特点，研制了新型低分子纤维素压裂液体系。实验表明，该压裂液体系具有配制简单、快速溶解、基液无“鱼眼”、携砂能力强、破胶彻底、无残渣，岩心伤害率仅为8．59％。新型压裂液在致密油气储层现场应用16井次，压后平均日产油是邻井产量的2～5倍，应用新型纤维素压裂液体系的气井产量约为瓜尔胶压裂液体系井的3～8倍，为致密油气藏的高效开发提供有效通道。According to characteristics of tight reservoirs, we have studied on a New low-molecular- weight cellulose fracturing fluid. The experiments showed that the new cellulose fracturing fluid sys- tem with no residue had some characteristics, including simply preparation, instant dissolving, base fluid without ＂fish eye＂, high carrying capacity, gel breaking thoroughly, no residue, etc. The new fracturing fluid has been applied in 16 wells of tight oil and gas reservoirs. The average daily oil pro- duction is of 2 - 5 times comparing with adjacent wells after fracturing. The average daily gas produc- tion is of 3 -8 times comparing with adjacent wells after fracturing. The new technology provides an effective channel for efficient development of tight reservoirs

关 键 词：改性纤维素 低分子 无残渣 致密油气藏 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]