喇嘛甸油田“高效聪明井”布井方法

WELL PATTERN OF HIGHLY EFFICIENT SMART WELLS IN LAMADIAN OILFIELD

喇嘛甸油田进入特高含水期后，综合含水高、采出程度低、无效低效循环严重，剩余油分布零散，挖潜难度大。为最大限度挖潜剩余油，结合油田稳产形势，在搞清油田各套层系片网开发状况、各类储层动用状况、剩余油成因及分布状况基础上，利用储层精细解剖技术，结合井震结合技术以及动态分析方法，实现对储层砂体发育、构造特征的精细描述及剩余油分布特点的准确判断，在剩余油富集区开展“高效聪明井”挖潜剩余油方法研究。采取“少井、高效”的方式，利用水平井、大角度定向井、直井对零散分布的剩余油进行有效挖潜，对油田持续稳产、提高采收率具有重要意义，为油田的产量接替提供了新的开发方式。

Entering into high water cut stage, Lamadian Oilfield presents high composite water cut, low recovery degree, invalid or inefficient water circulation, scattered remaining oil and difficult potential tapping. In order to produce maximum remaining oil, the production status under well pattern in each series of layers, the producing status of each kind of reservoirs, and the origin and distribution of remaining oil are figured out combined with current stable production situation. On this basis, the fine description for reservoir sandbody and structure and the accurate judgment to the characteristics of remaining oil distribution are achieved by fine reservoir dissection technology, integrated logging-seismic data and dynamic analysis method. Finally, the research on the method of tapping remaining oil potential by high efficient smart well in oil enriched area is implemented. Horizontal well, high angle directional well and vertical well are adopted to produce scattered remaining oil under the principle of ＂ less well and high efficiency＂, which has great significance for improving recovery factor and providing a new way to continue oil production.