大庆石油地质与开发2024，Vol.43Issue(3)：193-202,10.DOI:10.19597/J.ISSN.1000-3754.202403010
特低渗透滩坝砂油藏超前压驱技术及其应用
Advanced fracturing-flooding technique and its application in ultra-low permeability beach-bar sandbody reservoir
摘要
Abstract
Shengli Oilfield innovatively proposes"advanced fracturing-flooding"development technique mode in ul-tra-low permeability beach-bar sandbody reservoirs,achieving high and stable production application effect.Aim-ing at effective mechanism of high and stable production,physical simulation,numerical simulation and compara-tive field application are studied to analyze the establishment of pressure profiles between producer and injector with high-pressure coefficient,the variation of reservoir stress field with advanced fracturing-flooded injector and its influence on producer's productivity.The results show that the construction of continuous and stable displace-ment pressure profile by high pressure coefficient and differential fracture initiation of producer with advanced frac-turing-flooding varying stress field are the 2 effective mechanism for high and stable production.High pressure coef-ficient condition is conducive to coordinated conduction of pressure and medium,while forward movement of high pressure head helps overcome the start-up pressure gradient,forming continuous and stable pressure profile.With advanced fracturing-water flooding,high reservoir pressure can effectively reduce fracturing pressure of reservoir,easily forming complex fractures network.Meanwhile,changing the size and distribution of in-situ stress field of res-ervoir affects fractures propagation and productivity of fractured producers.The research reveals effective mecha-nism of advanced fracturing-flooding for high and stable production,and provides guiding significance for large-scale beneficial productivity construction of ultra-low permeability beach-bar sandbody reservoirs.关键词
超前压驱/滩坝砂油藏/特低渗透/高压力系数/压力剖面/地应力/胜利油田Key words
advanced fracturing-flooding/beach-bar sandbody reservoir/ultra-low permeability/high-pressure coefficient/pressure profile/in-situ stress/Shengli Oilfield分类
能源科技引用本文复制引用
张世明,杨勇,曹小朋,刘海成,王建,孙志刚..特低渗透滩坝砂油藏超前压驱技术及其应用[J].大庆石油地质与开发,2024,43(3):193-202,10.基金项目
中国石油化工集团有限公司科技项目"压驱提速提效开发关键技术及示范应用"(P21072)和"压驱提速提效开发优化设计技术研究"(P21072-2). （P21072）
