苏丹H底水油藏高含水期井网加密调整潜力  

Infill Potential and Adjustment for Bottom Water Reservoir with Ultra-High Water-Cut in H Oilfield,Sudan

作　　者：饶良玉[1] 吴向红[1] 李贤兵[1] 陈荣[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《新疆石油地质》2012年第3期387-389,共3页Xinjiang Petroleum Geology

摘　　要：以苏丹1/2/4区H底水油藏为例,为减缓产量递减和提高原油采收率,运用水驱特征曲线和可采储量快速预测方法进行采收率预测,并计算了底水波及系数及极限井控面积,建立了H油田井控面积与最终采收率关系式。研究结果表明,H油田高含水期具有较大的加密潜力。对H-01主块开展数值模拟加密调整研究,采用逐步优化的方法设计了加密方案,提出水平井、侧钻井加密优化方案,预测结果表明,该方案比基础方案的采收率提高3.02%.Taking the bottom water reservoir in H oilfield of 1/2/4 area in Sudan as an example, by means of water drive characteristic curves and rapid prediction method of reeoverable reserves, the oil recovery of this reservoir was predicted, the sweep efficiency and ulti- mate well-eontrolled area were estimated, and the relationship between well-controlled area and uhimate oil reeoverv in H oilfield was es- tablished fi^r the pmpnse of reducing production decline and enhancing oil recovery. The results show thai H oilfield is of greater well paL- tern thrill potential in stage of uhra-high water-eut. For H-OI block, numerieal simulation and infill adjustment study is conducted using step optimized method, and the optimized infill scenario is proposed, including infill horizontal well and sidetrack well. The prediction re- sults indicate that this scenario can enhance oil recovery, by 3.02% more than the basic scenario.

关 键 词：底水油藏 高含水期 数值模拟 剩余油 水平井 

分 类 号：TE331[石油与天然气工程—油气田开发工程] TE341