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| Reservoir dynamic control in block 6A + B of Chengdao Oilfleld |
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ZHANG Kai1,YAO Jun1,LIU Shun2,DUAN You-zhi1,CHEN Xiao-fei3,ZHAO Zheng-quan4
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(1.College of Petroleum Engineering in China University of Petroleum, Qingdao 266555, China ;2.College of Petroleum Engineering，Xi'an Shiyou University, Xi'an 710065 f China;3. 1st Gas Production Plant of Changqing Oilfield，Jingbian 718500, China;4. 5th Oil Production Plant of Huabei Oilfield，PetroChina, Xinji 052360，China)
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| Abstract: |
| Chengdao offshore oilfield is a multi-layers reservoir with strong heterogeneity of uneven physical properties on the vertical and horizontal direction. The technology of separated layer water-flooding was used for development. However, this technology couldn ’ t control water flooding in the whole reservoir. To solve these issues such as a low production velocity and water cut increasing rapidly，a new optimal reservoir dynamic control method was proposed. It regarded reservoir as a complex dynamic system. The optimal objective was to maximize net present value of production. Through solving the optimization model of reservoir development and production，real-time control parameters of input and output for reservoir were determined and the optimal production schedule was obtained. Typical block 6A + B of Chengdao Oilfield was analyzed by the new method. The results show that the optimal production scheme agrees well with the demand of actual field. |
| Key words: Chengdao Oilfield production optimization maximum principle optimal schedule |
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