论文部分内容阅读
目前通６１ 断块已处于特高含水开发后期。为了挖掘断块的潜力，１９９７ 年在精细油藏描述和动态资料分析的基础上，探讨了该块剩余油的分布规律，认为高含水的主力油层是挖潜的主要方向。１９９７ 年、１９９８ 年采取了针对性较强的配套措施，取得了高产开发效果，表明打高效调整井、产液结构调整和大泵提液强采是特高含水后期提高采收率普遍适用的有效措施。统计资料表明，１９９６ 年通６１ 断块的自然递减率、综合递减率、含水上升率分别为３６．９％ 、８．４％ 、１．０％ ，到１９９７ 年分别下降为１３．２％ 、３．９％ 、０．４％ ，年产量增加了７．３×１０４ｔ；增加可采储量２３×１０４ｔ，采收率由４９．８％ 提高到５１．１％ 。
The current 61 fault block has been in the late development of high water cut. In order to excavate the potential of fault block, on the basis of fine reservoir description and dynamic data analysis in 1997, the distribution rule of remaining oil in this block was discussed. It is considered that the main reservoir with high water content is the main direction of potential tapping. In 1997 and 1998, we took the well-matched supporting measures and achieved the high-yield development effect. It shows that it is generally applicable to increase recovery rate during the late ultra-high water-cut period by playing a high efficiency adjustment well, adjusting the production liquid structure, Effective measures Statistics show that the natural decline rate, the comprehensive decline rate and the water cut rate of Tong 61 block in 1996 were 36.9%, 8.4% and 1.0% respectively, down to 13.2% in 1997, 3.9% and 0.4% respectively, and the annual output increased by 7.3 × 104t. The recoverable reserves increased by 23 × 104t and the recovery rate increased from 49.8% to 51.1%.