埕岛油田合作开发与自营开发效果分析

胜利油区海上埕岛油田馆陶组上段油藏合作区与自营区由于采用了不同的开发技术政策，两区的开发效果与暴露的问题不同。为了更好地解决埕岛自营区面临的采油速度低、地层压力水平低和提液难度大等问题，应用油藏工程和类比分析等方法，对两种开发模式的主要做法及开发效果进行了对比分析。结果表明，对于海上多层砂岩油田，实施分层系开发、采用等温注水方式、保持较高的地层压力水平和放大压差生产等不但可以提高开发效果，还可以获得较好的经济效益。

Effects analysis of joint- operated and self- operated development in Chengdao Oilfield

The joint-operated block and self-operated block of upper Ng oil reservoirs in Chengdao offshore oilfield of Shengli petroliferous province have different development technical policy, which resulted in different effectiveness and encountered different issues. In order to better solve the problems of low production rate, low reservoir pressure level, great difficulty of fluid production increase and so on in the self-operated block of Chengdao Oilfield , the main measure and development results of these two pattern are compared and analyzed using the methods of reservoir engineering and analogy analysis. In offshore layered sandstone oilfield, taking the measures of selective zone production, isothe-mal water injection, higher formation pressure level preserving and pressure difference enlarging can not only improve the effect but also gain good economic benefit.