Research and Application of an Environmental-Friendly Low-Damage and High Salt-Resistance Slick Water Fracturing Fluid System

作者：Qingwen Zeng,Peng Fu,Lei Meng,Hua Shi,Hong Zhou,Weichu Yu

摘要：The Sulige gas field is a typical low-pressure low-permeability tight sandstone gas reservoir. The reservoir has poor seepage capacity, strong heterogeneity, high mineralization of formation water and extremely scarce water resources on the site. These unfavorable factors have brought great difficulties to the on-site mining process. Now, a nano-composite green environmental protection slick water fracturing fluid system CQFR can be quickly dissolved because of the larger specific surface area, and the small molecular size makes the damage to the reservoir less than 5%, and the average drag reduction effect can reach more than 73%. It can quickly and well dissolve and maintain performance under high salinity conditions and fracturing flowback fluids. It responds well to the complex reservoir conditions on the construction site and makes the flowback fluid recyable, which greatly reduces the consumption of water resources on the construction site and effectively improves the construction efficiency and economic benefits.

发文机构：Yangtze University Changqing Oilfield Company Oil and Gas Technology Research Institute Beijing Design Branch of China Petroleum Engineering Construction Co. Hubei Collaborative Innovation Center for Unconventional Oil and Gas

关键词：TightSandstoneRecyclableBackwaterGreenEnvironmentallyFriendlyLow-DamageHighSalt-ResistanceSlickWaterTight SandstoneRecyclable BackwaterGreen Environmentally FriendlyLow-DamageHigh Salt-ResistanceSlick Water

分类号： P61[天文地球—矿床学]