论文部分内容阅读
大庆油田萨中南一区加密调整井网与原井网处于同一水动力系统,因此油田在高含水阶段进行加密调整,层系间干扰是客观存在的。应用精细地质研究成果,结合动静态资料,综合分析了南一区西部加密井网与老井网间的正负干扰问题,对加密井网条件下的3种干扰情况(原井网对新井网的负干扰,截流产生的负干扰,层系间的正干扰)进行了分析,并将层系间的正干扰应用到加密井网注水结构的优化调整上,给出了调整的原则和做法,在开发实践中取得了较好的开发效果,有效地控制了含水及自然递减率,为井网加密调整地区提供了指导和借鉴作用。
Daqing Oilfield Sa Zhongnan a zone of the well to adjust the well network with the original well in the same hydrodynamic system, the oil field in the high water phase encryption adjustment, inter-layer interference is an objective reality. Based on the results of fine geology research and the dynamic and static data, this paper synthetically analyzes the positive and negative interferences between the western well borehole network and the old well borehole in the south section of the South China Sea. Three kinds of interference conditions in the well borehole network Negative interference, negative interference caused by closure, positive interference between layers) are analyzed, and the positive interference between layers is applied to optimize the adjustment of water injection structure of the well network, and the principle and practice of adjustment are given The development has achieved good development results, effectively controlled the water and natural rate of decline, and provided guidance and reference for well network encryption and adjustment.