### Nonlinear Characterization Method of Fracturing Stimulation Scale on Heterogeneous Reservoir by Combining Logging and Seismic Data

DU Shuheng1, SHI Yongmin1, XU Qi2, FANG Yuanyuan1, SHENG Yingshuai1

1. 1. School of Earth and Space Science, Peking University, Beijing 100871
2. The 10th Oil Production Plant, Daqing Oilfield Company, PetroChina, Daqing 166405

• Published:2016-03-20

Abstract:

After two infilling adjustment and repeated fracturing on the third type of Chaoyanggou oil field, effective drive systems are still unable to be established in part of the reservoirs, and the measure effect and oil recovery degree is poor. Considering the insufficient understanding on fracture extending and fracturing stimulation scale of heterogeneous reservoir, 3D modeling on reservoir are performed by combining logging and seismic data and the asymmetric cracks are predicted based on elastic theory. Concepts named “relative stress” and “stimulation ratio” are raised, and the nonlinear relation between these two parameters is given. The scale of “relative stress” which could produce the supporting fracture is confirmed, and the fracturing stimulation scale could be judged. It would play important role on the layers selecting during the late development of oilfield and eventually to improve oilfield recovery degree.

CLC Number:

• TE348