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文章分析了探测半径与储层物性之间的关系,研究确定了不同类型火山岩储层的泄油半径与合理井距,裂缝发育程度越高,探测半径越大,所需井距越小。利用压降产能结合压力等值图计算了天然能量采收率,值较低。从前期五个注水井组取得的初步效果,认为注水开发技术对于牛东火山岩油藏是可行的。研究结果对类似油藏井网部署、注水开发具有指导意义。
The paper analyzes the relationship between the detection radius and reservoir physical properties, and studies the drainage radius and reasonable well spacing of different types of volcanic reservoirs. The higher the degree of fracture development is, the larger the detection radius is and the smaller the required well spacing is. The natural energy recovery rate was calculated using pressure drop capacity combined with pressure contour, with lower values. The preliminary results obtained from the previous five injection well groups suggest that the water injection development technology is feasible for the Niudong volcanic reservoir. The results of this study are instructive for similar well layout and water injection development.