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构造裂缝是裂缝性油藏的主要储集空间和渗流通道,对裂缝网络的描述是裂缝性油藏地质研究的重点和难点。裂缝网络发育受多种因素影响,非均质性极强,结合理论模式,通过野外相似露头,以及胜利油区富台油田车古201潜山油藏的钻井、测井、岩心、分析化验等多种资料、信息,系统研究了大、中、小、微不同尺度裂缝的发育特征及其分布规律,定量确定了不同尺度裂缝的关键特征参数,在此基础上针对背斜潜山不同构造部位(背斜轴部、翼部、倾末端),建立了背斜构造裂缝性油藏裂缝网络发育模式,为准确把握裂缝性油藏裂缝分布规律及高效部署开发井提供地质保障和依据。
Structural fractures are the main reservoirs and seepage channels of fractured reservoirs. The description of fracture networks is the key and difficult point in the study of fractured reservoir geology. Fracture network development is affected by many factors, and its heterogeneity is extremely strong. Combining with theoretical models, through similar outcrops in the field and drilling, well logging, core analysis and laboratory analysis in Chegu 201 buried hill reservoirs of Futai Oilfield in Shengli Oilfield A variety of data, information and system were used to systematically study the developmental characteristics and distribution of fractures at large, medium, small and micro scales and to quantitatively determine the key characteristic parameters of fractures at different scales. Based on this, (Anticline shaft part, wing part and dumping end), a fracture network development model of anticline fracture reservoirs has been set up to provide geological guarantee and basis for accurately grasping fracture distribution of fractured reservoirs and efficiently deploying development wells.