Understanding the dynamic behavior of stress field during the production period helps to better design the production measures and engineering parameters of the following refracturing treatment. Based on the theory of pore elasticity, a production induced stress model was built. Combined with the field seismic and fracturing data, a geometric model of multi-fractured horizontal well in carbonate reservoir is established. Taking a well in Ta’ he oilfield as an example, the accuracy of the model is verified by actual production data. Through the simulation results, the model can accurately calculate the pore pressure and stress field distribution of carbonate rock formation during production process, then the minimum principal stress around the wellbore was analyzed. This study is instructive for uncovering the factors that affect the induced stress field during the production process. The results are also of great value for the optimization of refracturing treatment.
Numerical Simulation of Dynamic Stress Field of Fractured Horizontal Well in Carbonate Reservoirs - In the Production Process
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Wei, Shiming, Chen, Mian, Jin, Y., Lu, Yunhu, Liu, X., and H. Wen. "Numerical Simulation of Dynamic Stress Field of Fractured Horizontal Well in Carbonate Reservoirs - In the Production Process." Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, Seattle, Washington, USA, June 2018.
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