论文部分内容阅读
复杂断块油田桥 2 9块一类层严重水淹 ,注水启动二、三类层难度大 ,已进入中高含水开发阶段。分析区块开发面临的主要矛盾是 :井网密度大 ,平面调整余地小 ;含油层系单一 ,纵向上无法进行层系调整 ;储层非均质严重 ,砂体分布不稳定 ,设计经济效益井难度大。根据区块开发实际 ,深化地质基础研究 ,通过构造精细解释 ,储层综合评价 ,储量动用状况分析及剩余油分布规律研究 ,确定了区块的主要挖潜方向 :认识程度较低的断层边角部位构造复杂带、具有多套含油层系的屋脊断块高部位及局部剩余油富集区。通过应用双靶定向井调整挖潜技术 ,对改善区块开发效果起到了显著作用。
Complex fault block oil field bridge 2 9 block a serious flooding, water injection start two or three layers of difficulty, has entered the high water cut stage. The main contradictions in the analysis of block development are: large well pattern density and little room for plane adjustment; single oil-bearing layer series can not be stratified in the vertical direction; serious reservoir heterogeneity and unstable sand distribution, and the design economic benefit well High difficulty. According to the actual development of the block, deepening the basic research on geology, through the study of fine interpretation, comprehensive evaluation of reservoir, analysis of reserve utilization and remaining oil distribution, the main tapping direction of the block is determined: the less recognized corner of the fault Tectonic complex belt, with a number of sets of oil-bearing high roof fault block and the local residual oil-rich area. Through the application of dual-target directional wells to adjust tapping technology, it has played a significant role in improving the development effect of blocks.