路44区块二次加砂压裂工艺的分析及应用

Application and Analysis of Secondary Sanding Fracturing in Block Lu44

赵心哲 何得海 李四海 党鹏生 艾华川 龚 辉

Zhao Xinzhe He Dehai Li Sihai Dang Pengsheng Ai Huachuan Gong Hui

1.中国石油大学(北京)石油工程教育部重点实验室,北京102249;2.中石油华北油田分公司采油三厂,河北河间062450

1.Ministry of Education Key Laboratory of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China; 2.No.3 Oil Production Plant of Huabei Oilfield Co. Ltd., Hejian Hebei 062450, China

关键词: 二次加砂, 薄差层, 参数分析, 控制缝高

Fracture height control is a key factor for the development of low permeability reservoir, especially for the thin and poor quality zones. Aiming at the challenges of poor capping rock and ample muddy interbedding of formation of block Lu44 in Huabei Oilfield, secondary sanding fracturing technology are conducted as a way of stimulation. The secondary sanding fracturing technology can make a contribution to fracture height control has been proved by using the fracture height migration model. Through FracproPT software, the fracture height is compared between secondary sanding fracturing and conventional fracturing. At the same time, based on the result of numerical simulation, the reasonable fracturing parameters, including second sand volume, second preflush ratio, pump off time and delivery rate, are optimized. The secondary sanding fracturing has a good adptability in Huabei Oilfeild and better production in other wells.

中石油华北油田项目“低渗透油藏改善开发效果研究与应用”(HBYT-CY3-2015-5s-75)。

10.3969/j.issn.1672-6952.2016.06.009