—In order to study the mechanism of oil and gas coordinated development in oil rim reservoirs, three-dimensional visualized gas-cap reservoir physical simulation device was established to simulate the processes of oil and gas development at different gas production rates. According to experimental result, it is shown that migration speed of oil-gas interface was reduced with increasing gas production rates while migration speeds of internal and external oil-gas interfaces gradually became close, which effectively slows down occurrence of gas channeling, reduces production gas oil ratio and increases the swept volume of gas drive, so as to improve its development effect. Moreover, optimization of coordinated development methods of gas-cap and oil ring under three different conditions was studied as well,. According to optimization result, it is shown that optimal gas production rate for coordinated development of oil and gas was different under different conditions and policies. If well shut-in problem( due to gas channeling) is not considered, optimal gas production rate is small, since development years of reservoir will become longer and its development effects will become better. If well shut-in problem is considered, accumulative oil and gas equivalent will be maximized when gas production rate is between 2% and 4%.
—Oil rim reservoir, coordinated development, indoor experiment, migration law of oil-gas interface, gas production rates.
The authors are with the Oil & Gas Development major in College of Petroleum Engineering at China University of Petroleum (Beijing). (e-mail: email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org).
Cite:Liu Jia, Cheng Lin-Song, Huang Shi-Jun and Zhang Jian, "Study on the Reasonable Development Method of Gas Cap Reservoir," International Journal of Environmental Science and Development vol. 5, no. 2, pp. 147-151, 2014.