驱油型表面活性剂压裂液的研发与应用  

Development and application of flooding surfactant fracturing fluid

作　　者：范华波[1,2] 薛小佳[1,2] 李楷[1,2] 周晓群[1,2] 吴顺林[1,2] Fan Huabo;Xue Xiaojia;Li Kai;Zhou Xiaoqun;Wu Shunlin(National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi'an, Shaanxi, China;Oil and Gas Technology Research Institute of PetroChina Changqing Oilfield Company, Xi'an, Shaanxi, China)

机构地区：[1]低渗透油气田勘探开发国家工程实验室 [2]中国石油长庆油田分公司油气工艺研究院

出　　处：《石油与天然气化工》2019年第1期74-79,共6页Chemical engineering of oil & gas

基　　金：国家重大科技专项"鄂尔多斯盆地大型低渗透岩性地层油气藏开发示范工程"(2016ZX05050)和"鄂尔多斯盆地致密油开发示范工程"(2017ZX05069)

摘　　要：体积压裂理念带来了非常规油气资源勘探开发的技术革命,微裂缝渗吸驱油理论改变了压裂液行业的传统认识。从分子设计入手,合成了Gemini型表面活性剂,配套优选了炔醇纳米二氧化硅油剥离剂,构建研发了驱油型表面活性剂压裂液。与常规胍胶压裂液体系比较,该体系具有较好的分散性和润湿改变性能,渗吸效率为38%,驱油效率达20%以上。现场试验见油速度快,投产初期产量高,含水低,增产效果明显。The concept of volume fracturing has brought about a technological revolution in the exploration and development of unconventional oil and gas resources. The theory of micro-fracture imbibition and displacement has changed the traditional understanding of the fracturing fluid industry. In this paper, the Gemini surfactant was synthesized by the molecular design, and the acetylenic alcohol nanosilica oil release agent was optimized and matched, then the oil displacement surfactant fracturing fluid was developed. Compared with the conventional guanidine gum fracturing fluid system, the system has better dispersion and wettability change performance, with an osmotic efficiency of 38% and an oil displacement efficiency of more than 20%. The on-site test shows that the oil speed is fast, the output at the initial stage of production is high, the water content is low, and the effect of increasing production is obvious.

关 键 词：致密油 表面活性剂 分散性 润湿改变性能 驱油效率 

分 类 号：TE39[石油与天然气工程—油气田开发工程]