港东一区井震联合剩余油富集规律研究
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摘要
高含水油田剩余油呈现"整体高度分散、局部相对富集"的格局,认识井间储层与剩余油的分布规律,是处于开发后期油田增储上产的关键。针对港东一区一断块高含水油层,开展了以地震分频处理技术、井震精细标定和地震分频反演技术为特色的油藏地球物理技术研究;基于地震约束建立的储层地质模型,采用精细油藏数值模拟技术对研究区的剩余油富集区进行了预测;根据预测结果,对剩余油富集圈闭,采取补孔、堵层、优化注采井网等措施,获得了明显的增产效果。
The remaining oil at high water-cut stage distributes with the characteristic"overall highly scattered.local relatively enriched". Recognition on the distribution rule of remaining oil and inter-well layers is the key to increase reserve and production for the oilfield at the later stage.In view of the production needs,the seismic data frequency-division processing,fine well-to-seismic calibration and seismic frequency-division inversion were applied on the reservoir with high water cut at Gangdong No.1fault block.Based on the reservoir geological model constrained by seismic data,the potential regions of remaining oil are predicted by fine reservoir numerical simulation technique.Based on the prediction results,several treatments,such as re-perforation,plugging and well pattern optimization are applied to the concentrated traps of remaining oil,and the field production is significantly increased.
The remaining oil at high water-cut stage distributes with the characteristic"overall highly scattered.local relatively enriched". Recognition on the distribution rule of remaining oil and inter-well layers is the key to increase reserve and production for the oilfield at the later stage.In view of the production needs,the seismic data frequency-division processing,fine well-to-seismic calibration and seismic frequency-division inversion were applied on the reservoir with high water cut at Gangdong No.1fault block.Based on the reservoir geological model constrained by seismic data,the potential regions of remaining oil are predicted by fine reservoir numerical simulation technique.Based on the prediction results,several treatments,such as re-perforation,plugging and well pattern optimization are applied to the concentrated traps of remaining oil,and the field production is significantly increased.
引文
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11刘保国,刘力辉.实用地震沉积学在沉积相分析中的应用[J].石油物探,2008,47(3):266-271
12刘文岭.地震约束储层地质建模技术[J].石油学报. 2008,29(1):64-68
2朱文春,宋鹍,高印军,等.港东油田一区河流相储集层滚动勘探方法[J].石油勘探与开发,2004,31(1): ??78-82
3陶庆学,李东平,王娟,等.港浅8-6井区河道砂体储层预测的综合研究[J].石油物探,2006,45(4): 401-408
4李阳.油藏综合地球物理技术在垦71井区的应用[J].石油物探,2008,47(2):107-115
5韩大匡.准确预测剩余油相对富集区提高油田注水采收率研究[J].石油学报,2007,28(2):73-78
6杨懋新,庞路武,卢春阳,等.应用三维高分辨率地震技术进行剩余油预测的方法探讨[J].石油物探,2001, 40(3):68-75
7于常青,祁晓明,朴永红,等.联合高分辨率地震和精细测井资料的剩余油气分析[J].地球物理学进展,2005, 20(2):302-307
8李国发,廖前进,王尚旭,等.合成地震记录层位标定若干问题的探讨[J].石油物探,2008,47(2):145-149
9于文芹,邓葆玲,周小鹰.岩性指示曲线重构及其在储层预测中的应用[J].石油物探,2006,45(5):482-486
10刘淑华,张宗和.储层特征曲线重构反演技术——以冀东油田南堡凹陷为例[J].勘探地球物理进展,2008, 31(1):53-58
11刘保国,刘力辉.实用地震沉积学在沉积相分析中的应用[J].石油物探,2008,47(3):266-271
12刘文岭.地震约束储层地质建模技术[J].石油学报. 2008,29(1):64-68
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