用有限差分网格方法寻找辅助标志层——以南梁—华池油田为例

Finding pre-emergency marked layers using finite difference dividing methods for oil layer comparison

目的解决研究区小层划分对比上的问题。方法借鉴油藏数值模拟中的有限差分网格方法,利用测井资料提出油田开发中一种新的实用性较强的地层划分对比方法——有限差分网格方法。结果在层序地层和沉积旋回控制的基础上,重新标定出了研究区的小层对比统一标志,找出了一系列辅助标志层。结论研究结果对指导沉积矿产资源勘查,层序地层划分具有指导意义。

Aim To solve the perplex of the contrast in formation stratification dividing until now.Methods A new method of stratigraphy stratification,that is,the finite difference frame dividing in oil field is put forward by drawing on its using in reservoir numerical simulation and utilizing well logs.Results When this method is applied in Nanliang-Huachi oil field,based on the sequence stratigraphy and the cyclic deposition,the marks of contrasting unity are again calibrated in the formation stratification of researching areas.A series of pre-emergency marked layer are found.Conclusion The stratification of the sequence stratigraphy has played a great role not only in the fundamental geological research but also in the sedimentary mineral resource exploration.