The Format Criterion Of Doctoral Dissertation

Carbonate reservoirs often develop many fractures,which complicate the underground flow law and make productivity evaluation difficult because of the uncertain and discontinuous fracture development direction.The inversion of complex fracture parameters and evaluation of interwell connectivity are two key factors which lead to the difficulty of carbonate reservoir productivity evaluation.For this kind of complex carbonate reservoir with fractures,it is urgent to establish a set of productivity evaluation method to evaluate the production performance of oil wells and guide the formulation of development strategies.Firstly,a flow mathematical model considering complex fractures is established and solved,and a set of inversion technology for reservoir parameters of fractured reservoirs is established based on well test method.Then,based on the material balance theory,a quantitative evaluation method of inter-well connectivity was constructed based on multi-well production dynamic data.Finally,a set of productivity evaluation method for carbonate reservoir is developed based on numerical simulation technology and constrained by analytical well test and interwell connectivity evaluation results.The feasibility of the method is proved by the application of the method to J4 well in a foreign carbonate reservoir,which also provides guidance for the subsequent production and development of the well,and provides a method for the productivity evaluation of similar Wells in this area.