Practice and Experience for Rolling Exploration and Development of Petroleum Reservoir——An example from Shinan-21 well block in Junggar basin

In 2004,the productivity of 56.49×10~4 t of Toutunhe reservoir in Shinan-21 well block in Junggar basin was constructed,after which through 4 years studies of data from reservoir geology are conducted,such as well logging,3-D seismic prospecting,well testing and production and performance analysis,in order to master the variation of sand body,fault occurrence,provenance directions,identify sedimentary microfacies,3-D distribution of reservoir,interbed and fluid,estimate productivity of thin sand,and revise oil-water interface of reservoirs,etc.The beneficial results are remarkable.