低渗透砂岩油藏裂缝三维精细表征技术  

THREE-DIMENSIONAL PHENETIC TECHNOLOGY OF FRACTURE FOR RESERVOIR WITH SUPER-LOW PERMEABILITY

作　　者：王晓强[1] 吴承美[1] 刘艳红[1] 夏平[1] 袁霁[1] 

机构地区：[1]中国石油新疆油田分公司准东采油厂,新疆阜康831511

出　　处：《新疆石油天然气》2017年第2期20-26,共7页Xinjiang Oil & Gas

摘　　要：长期以来,裂缝建模一直是地质建模的难点,建立一个准确的地质模型是进行数值模拟的基础。火烧山油田属于裂缝性复杂的油藏,目的层二叠系平地泉组是在沉积背景上多次构造、多种成岩作用改造后形成,其储集空间为孔隙、裂缝组合的复杂网络,主力储层H3层内裂缝发育,裂缝类型以高角度(大于79°)直劈缝为主,裂缝主方向为南北向,其次为北西向、北东向和近东西方向,呈"米"字型展布。充分利用了地应力分析、岩心观察描述、微地震监测、地球物理测井等资料,采用FracMan专业裂缝建模软件对火烧山油田H3油藏的裂缝方位、密度、离散度、空间分布形式进行分析,同时结合地震反演、生产动态表征,建立了精细的裂缝模型,计算出裂缝的等效渗透率、sigma因子等参数,为H3油藏双孔双渗数值模拟研究提供了较为准确的地质参数。For a long time, fracture modeling being the difficulty of geological modeling, so establishing an accurate geological modeling is the basis for simulation. Huo Shaoshan oilfield is complex fracture reservoir, and the target bed permian Ping Diquan formation is formed by Multiple tectonic movements on sedimentary background and diagenesis modification, and reservoir space is a complicated web combined by pore and fracture,the main reservoir H3 mainly developed fracture characterized by straight one with high angle above 79°, the direction of fracture is mainly north-south, others are north-west, north-east and almost east-west,which is directed like Mi-zi type. The thesis analyzes fracture direction, density, dispersion and space distribution form of Huo Shaoshan H3 reservoir by Frac Man software, based on the data of ground stress analysis, core observation,microseismic monitoring, geophysical logging, accurate fracture modeling is established by seismic inversion,production performance, and the parameters such as equivalent permeability, sigma factor etc. can be calculated, which provide more accurate geological parameters of dual-porosity and dual-permeability modeling research for H3 reservoir.

关 键 词：裂缝性油藏 FracMan软件 三维裂缝模型 双孔双渗 

分 类 号：TE122.23[石油与天然气工程—油气勘探]