| Aiming at the problems in the development of A well area in Xinjiang Oilfield,such as the characteristics of geostress distribution,fracture geometry.Based on the reservoir parameters,rock mechanics parameters and geostress parameters of W1 well,the geological model was established by StimPlan.Analyze the Win control factors and calculate the limits of fracture geometry.Create a plate to identify the effective compartment,and determine the limits of layered fracturing.Based on the stream-tube method,the formula of the breakthrough time of equivalent well bottom was established in the diamond shaped inverted 9-spot pattern to achieve the effect of balanced displacement.Calculate the fracture geometry by the above formula in different well pattern and optimize the fracture geometry on the basis of the limits of fracture geometry and optimize the well pattern. |