摘要
渤海KL油田在整个渤海区域是及其少见的复杂油气田,主要以薄互层为主,地震资料分辨率低,油田地质条件复杂,储层预测难度大;储层横向变化快,平面分布认识困难.由于地质条件复杂、井况复杂造成井区的注采连通关系复杂,油水井作业量大,精细注水难度大.目前KL油田大部分注水井还处在笼统注水阶段,分层配注实施滞后,部分层实际注水量未达到油藏需求量,同时影响地层压力恢复,造成KL油田无法按计划正常开发生产.本次研究通过实验方法结合油藏工程方法对渤海KL油田的渗透率级差进行研究,确定渤海KL油田分层系开发的依据,确保KL油田合理高效开发,为此类油田分层系开发提供有力的参考.
Bohai KL oil field is a rare complex oil and gas field in the whole bohai sea area.It is mainly composed of short lap,low seismic data resolution,complicated geological conditions and difficult reservoir prediction.The horizontal variation of reservoir is fast,and the understanding of plane distribution is difficult.Due to complex geological conditions and complex well conditions,the injection-production connectivity of the well area is complicated,oil and water wells operate in large quantities,fine water injection is difficult.At present,most injection Wells in KL oilfield are still in the stage of commingled water injection,and regulating separate stratum injection is lagging.The actual injection water in some layers has not reached the demand of oil reservoirs,and at the same time,the formation pressure recovery is affected,resulting in the failure of normal development and production of KL oilfield as planned.In this study,the permeability contrast of KL oilfield in bohai sea was studied by means of experimental method combined with reservoir engineering method,and the basis of subdivision of layer series development of KL oilfield in bohai sea was determined,so as to ensure reasonable and efficient development of KL oilfield,providing a powerful reference for such subdivision of layer series development.
作者
姚君波
何芬
崔龙涛
袁立
宫平志
Yao Junbo;He Fen;Cui Longtao;Yuan Li;Gong Pingzhi(Tianjin Branch of CNOOC(China)Co.,Ltd.,Tianjin,300452)
出处
《当代化工研究》
2019年第14期120-122,共3页
Modern Chemical Research
基金
中海石油(中国)有限公司综合科研项目“渤海双高油田挖潜关键技术研究”(YXKY-2018-TJ-04)
关键词
薄互储层
分层系开发
实验方法
油藏工程方法
渗透率级差
合理高效
short lap
layered development
experimental method
reservoir engineering method
permeability contrast
reasonable and efficient
