关键词: 高含水；老油田；开发形势；可持续发展；扶持政策

Abstract: The reserves and production of China’s high water-cut oilfields account for more than 70 percent of the nation’s total separately. This part of reserves and production are of great importance to securing the nation’s energy supplies and maintaining the high-quality economic development. Most of the high water-cut oilfields are in their high water-cut and high-yield period. Therefore, they face a series of bottlenecks, such as inadequate resources for replacement, EOR technology difficult to satisfy the need for development, high cost and low efficiency. Meanwhile, the nation still has a great potential for oil and gas resources at home with the exploration and development theories and technologies improved continually. There is also an enduring and robust demand for oil and gas. To solve the strategic issues related to future development of the high water-cut oilfields, this article analyzes the situation of China’s high water-cut oilfield development as well as the challenges and opportunities in this area. It is proposed that the relevant mechanisms and the system of policies should be perfected at the national level, including the differential financial and taxation policies on conventional oil and gas classification and different stages, the related policies on the oil and gas royalties, and the preferential policies on key technological research and the policies for refunding special benefits from low oil prices, aiming to promote sustainable and high-quality development of the high water-cut oilfields.

Key words: high water-cut, old oilfields, development situation, sustainable development, preferential policies