塔河油田五区碳酸盐岩缝洞型储层发育特征及主控因素

Development characteristics and main controlling factors of carbonate fractured vuggy reservoir in 5 area of Tahe Oilfield

塔河油田五区位于阿克库勒凸起北东向构造轴部西南部,由于经历了多期构造运动的抬升、暴露、剥蚀和岩溶作用。前人认为该区岩溶残丘储集体发育,但对于残丘内部储集体发育差异性缺少研究。本文通过对不同构造单元下残丘不同部位储集体发育程度对比,研究区储层发育特征,分析储层发育的主控因素,总结出研究区储层发育规律。该认识对于研究区下步开发部署具有较高的指导意义。

5 area of Tahe oilfield is located in the southwest of the Northeast structural axis of Akekule uplift.It has experienced uplift,exposure,denudation and karstification of multi-stage tectonic movement.Predecessors believe that the karst residual hill reservoirs are developed in this area,but there is a lack of research on the differences of reservoir development in the residual hill.This paper compares the development degree of reservoirs in different parts of residual hills under different structural units,analyzes the reservoir development characteristics in the study area,analyzes the main controlling factors of reservoir development,and summarizes the reservoir development law in the study area.This understanding has high guiding significance for the next development and deployment of the study area.