车排子油田火山岩储层三维裂缝定量模型研究

依据地质、地震、测井、试油等资料，基于构造、岩相模型，利用Petrel和Fraca软件，采用序贯指示模拟方法，以地震方差数据体为软数据、单井裂缝分析资料为硬数据，建立了车排子油田车21井区石炭系火山岩储层裂缝发育带模型、大尺度缝模型、小尺度缝模型和相应的流体动力学模型，精细刻画了不同空间尺度裂缝的展布特征和分布规律，实现了裂缝沟通半径的合理预测。研究表明：本区天然裂缝发育以SN向、NEE和NWW方向为主；裂缝分布具有强烈的非均质性，断裂附近裂缝较其它区域更为发育；裂缝供液半径为75m左右；断裂附近是下一步滚动扩边的优选目标区。

3D Quantitative Fracture Model of Igneous Rock Reservoir in Chepaizi Oilfield

On the basis of the sequence instruction analog technique, with seismic variance data as soft data and single well fracture analysis data as hard data, the fracture growth area model, large scale fracture model, small scale fracture model and relevant fluid dynamics model of Igneous Rock Reservoir in Che well21 area of Chepaizi Oilfield are established by the use of geological, seismic, drilling, logging, oil well test data, and Petrel and Fraca software. These models are used to finely describe the spatial distribution feature and law of different spatial scale fracture and the rightful forecast of fracture linking up radius is realized. The findings indicate the orientation of the most natural fractures is SN, NEE and NWW, fracture distribution is heterogeneous, the fractures around faults develop better than the ones in other areas, the feed flow radius of fracture is about 75 meters, last, the areas around faults are the optimal target areas for next exploration extension.