苏东南区M井区上古储层精细描述及数值模拟研究

Reservoir precise description and numerical simulation study of the M well areas in upper palaeozoic reservoir of southeast SU gas field

M井区位于苏里格气田苏东南区北部,主要目的层为下石盒子组盒8。井区采用水平井整体开发,井网较为完善,现阶段有必要对井区进行储层精细描述及开发指标预测,指导苏东南区后续开发工作。本文使用"虚拟井控制水平井水平段储层构造展布形态,水平井水平段录井资料控制砂泥岩变化规律"思路,对苏东南区M井区上古储层开展三维地质建模,精细描述了区块整体构造展布形态及各层物性参数的空间分布规律,并在此基础上开展数值模拟研究,对储量动用程度及采收率进行了研究,取得了一定认识。

M well area is located in the northern part of southeast Sulige gas field, the main purpose layers is the lower part of Shihezi 8 member. The well areas is developed by hori- zontal well, and well network is sufficient, it is necessary to carry out wellblock of fine reser- voir description and development index prediction at this stage, guiding the subsequent de- velopment in southeast area of Su. The article carried out the 3-D geological modeling＂by the virtual well control of horizontal section in horizontal well reservoir structure, the hori- zontal section of the horizontal well logging data to control the variation of sandstone and mudstone＂in M well area in southeast area of the reservoir of Su, fine described the well ar- eas structure and spatial distribution of reservoir physical property parameter, besides, through the study on the numerical simulation, the producing degree of reserves and recovery rate was predicted, achieved a certain understanding.