摘要
流线分布直观反映了油藏流体在注入井与生产井之间的运动轨迹,油藏在确定井网后,如何使注采流线均匀的分布,是扩大水驱波及体积、提高油藏采收率的关键。胜坨油田二区沙河街组二段9砂组在实施矢量化调整后,注采井网完善,注采对应率和水驱控制程度均达到100%,但是由于平面非均质性,导致油井地层能量恢复和水线推进不均衡。通过对单井的流线认识及验证,探索判断主流线的方法,并对影响流线的因素进行分析,为单元下一步的注采调整提供借鉴。
Streamline distribution directly reflected the motion track of reservoir fluid between injection wells and producing wells.After well pattern was determined,how to distribute the injectionproduction streamline was the key for enlarging swept volume of waterflooding and enhancing oil reserves recovery.After vectrization adjustment was carried out in Unit 9of Es2 in Shengtuo Oilfield,injection-production well pattern was perfected,the corresponding injection-production rate and waterflooding control degree reached 100%.However,because of the heterogeneity in the plane,the formation energy recovery and waterfront advance of oil wells were uneven.Through the analysis and verification of the single well streamline,the method of judging main streamline is discussed and influential factors of streamline are analyzed,which provide a guidance for the next adjustment of injection-production well patterns.
出处
《长江大学学报（自科版）（中旬）》
CAS
2015年第5期74-77,共4页
Journal of Yangtze University(Nature Science Edition)
关键词
胜坨油田
水驱
注采流线
压力梯度
Shengtuo Oilfield
waterflooding
injection-production streamline
pressure gradient
