Using fractal theory to predict distribution of fracture in buried-hill reservoir
Rao Hua1, Li Jian-min1, Sun Xi-ping2
1. Hulun buir Branch of Daqing Oilfield Co., Ltd, Hailar City, Inner Mongolia Autonomous Region, 021000, China;
2. Institute of Geophysical Prospecting Technology, Scientific Research Institute of Petroleum Exploration & Development, Beijing City, 100083, China
Abstract：The development of fracture in fractured buried-hill reservoir controls the accumulation of oil/gas. The buried-hill fracture mainly is fault-associated fracture, and the fault and fracture mostly are fracture with different damage level and relative displacement in a same stress field, which has self-similarity and meets the fractal theory. The practical data showed that fault and fracture also have self-similarity. Taking the density of core fracture as bridge, the regional fault information dimension is quantitatively associated with fracture information dimensions in cored interval, the region with the larger fractal value of fault has larger fractal value of fracture, demonstrating the development of fracture; and vice versa. According to statistics of oil/gas in the wells of studied area, the threshold of fractal value of fracture was determined, which can effectively predict the zone favorable to develop fracture and oil/gas-bearing range.
饶华, 李建民, 孙夕平. 利用分形理论预测潜山储层裂缝的分布[J]. 石油地球物理勘探, 2009, 44(1): 98-103,118.
Rao Hua, Li Jian-min, Sun Xi-ping. Using fractal theory to predict distribution of fracture in buried-hill reservoir. OGP, 2009, 44(1): 98-103,118.
