缝洞型碳酸盐岩油藏大尺度试井新方法

试井技术是认识油气藏、评价油气藏动态、完井效率以及措施效果的重要手段。塔河缝洞型碳酸盐岩油藏储集体特征形态各异,存在大型溶洞、裂缝和溶蚀孔洞,常规试井分析采用三重介质模型。针对塔河缝洞型碳酸盐岩油藏开发过程中生产井压恢曲线较少的问题,根据试井思想,利用Blasingame生产数据分析法提出了基于"生产曲线"的缝洞型油藏时间大尺度试井分析方法。

The new method of large scale well test in fractured-vuggy carbonate reservoirs

The well test technology is an important method, which can be used to evaluate the dynamic and completion efficiency of the reservoirs. The reservoir space of Fractured- vuggy Carbonate Reservoirs in Tahe oilfield is various with size disparity and strong heterogeneity, which includes large vug, fracture and water-eroded pores. So we must use the triple medium model when we analyze the well test data. There is little well test data in the oil development of Tahe. According to the thought of well test data analysis, we propose a large scale well test technology based on the production data of Blasingame analysis method.