歧口17-2油田滚动开发实践

歧口17-2油田位于渤海西部海域,地质上分为东、西两个高点,其主要开发层系为上第三系明化镇组下段。历时近6年的开采后,东、西高点开采不均衡,东高点采出程度低。为了充分动用资源,于2006年3月开始对东高点实施调整方案进行滚动开发,同时积极进行区块扩边勘探,并充分利用东高点新建的平台,及时对新发现的区块进行开发。相继发现、落实了东高点和南高点的油气层,新增动用石油地质储量约300×104m3、天然气地质储量近2×108m3,取得了显著的滚动开发效果。实现滚动勘探开发一体化,为歧口17-2油田继续保持稳产提供了储量接替,并缓解了渤西油田群供气的紧张局面,确保了海上小油田的经济、高效、快速开发。

Practice of progressive development of QK17-2 Oilfield

QK17-2 Oilfield is located in the western part of Bohai Bay.It is divided into two high-points,and the main production layer is lower part of Minghua Formation in Upper Tertiary.After six years' production,output in western and eastern part of QK17-2 Oilfield is not balanced,and the production degree in west part is higher.Taking use of these resources, the adjustment measure of progressive development was carried out since March,2006,meanwhile extension exploration proceeded.Taking full use of new platform in the eastern part,the new area is brought into development.The oil/gas layers are confirmed in the southern part,and oil and gas reserves have increased by 300×104 m3 and 2×108 m3 respectively,which achieves a remarkable effect.Integration of exploration and development is achieved,the reserves placement of oil field remains stable,the shortage of oil/gas has been eased,and the small-scale oilfields develop economically,efficiently and rapidly.