摘要
裂缝是低渗透砂砾岩储层中的主要渗流通道,裂缝发育规律的研究直接影响着开发方案部署和油藏开发效果。在地质研究定性描述的基础上,建立双重介质模型,通过调整裂缝和基质的属性参数,研究裂缝介质的渗透率大小和裂缝延伸方向的分布规律。结果表明,在该类油藏中裂缝渗透率可达基质渗透率的300倍左右;裂缝发育方向受断层影响,在断层附近100m左右发生转变,根据研究结果指导油田开发方案部署效果显著。
Fractures were the main seepage channels in low permeability conglomerate reservoirs.The study on the fracture growth rules directly influenced the development plan and the reservoir development effect.On the basis of qualitative geological description results,a dual-permeability and dual-porosity model was established.By adjusting the parameters of fracture and matrix,the distribution rules of permeability and its expanding direction in different areas of the fracture were studied.The result shows that the permeability of the fracture can be about 300 times as that of the matrix,the direction of the fracture is influenced by fault and it is changed near the fault at about 100m.The development plan is guided by the results and obvious effect is obtained.
出处
《石油天然气学报》
CAS
CSCD
2013年第1期110-112,176,共3页
Journal of Oil and Gas Technology
关键词
裂缝性油藏
砂砾岩油藏
双重介质模型
双渗透率
数值模拟
fracture reservoir
conglomerate reservoir
dual-media model
dual-permeability
numerical simulation
