关键词: 老油田, 低品位储量, 效益开发, 收益金, 资源税, 扶持政策

Abstract: Currently, most of the proven oil reserves in China are low-graded with the rise of development cost. The main developed oilfields entered their late development period with the continual rise of water cut and development cost. Meanwhile, a variety of charges and taxation narrows the profit-making space of the Chinese oil companies’ upstream business, making the economic performance drop rapidly. Based on analysis of main oil and gas fields, this paper proposes that the State should adopt eight preferential policies in favor of oil companies, such as eliminating the windfall tax, reducing the royalties for resources, using appropriate amount of capital to offset taxes, continuing to launch special fund for technological research, supporting production of low-yield and low-efficiency wells as well as effective development of compact gas, and encouraging recovery from tailing resources. The efforts should be strengthened to tap the potential for development of the remaining marginal reserves during the late recovery period of old oilfields. Meanwhile, the low-graded reserves should be also brought under effective development on a large scale so as to bring about a sustainable development situation with both state revenue and enterprises’ performance increased, enlarging the basis of reserves to keep China’s crude output stable and rising at an appropriate rate.