海上高含水油田增产挖潜技术——以海上A油田为例
|
摘要
相对于陆上油田而言,海上油田在高含水开发中后期增产挖潜研究中,对剩余油描述精度要求更高、面临的难度更大。以海上A油田为例,根据油藏地质与开发特点,通过以Q-Marine地震技术采集的资料为基础,系统地采用时移地震预测剩余油分布技术、叠前纵横波联合反演技术、储层构型综合表征油藏非均质性技术等精细刻画储层砂体的空间展布,描述储层非均质性,预测剩余油分布,并在此基础上提出了定向井多靶点多目标以及多底、多分支水平井等油田开发技术策略,取得了良好的挖潜效果。
Compared with onshore oilfields,higher precision was needed and bigger difficulty was faced at the late stage of high water-cut development of offshore oilfields.By taking a offshore Oilfield for example and according to the analysis of reservoir geology and development features,based on Q-Marine seismic data,the technology using time migration seism of the residual oil distribution,PP-PS joint pre-stack inversion technology and the technology of comprehensively characterizing the reservoir heterogeneity were used to describe the spatial distribution of sand body and reservoir heterogeneity and predict the distribution of residual oil.On the basis stated above an oilfield development strategy of directional wells with multiple targets as well as multilateral horizontal wells is proposed.And consequently good result is acquired for potential tapping.
Compared with onshore oilfields,higher precision was needed and bigger difficulty was faced at the late stage of high water-cut development of offshore oilfields.By taking a offshore Oilfield for example and according to the analysis of reservoir geology and development features,based on Q-Marine seismic data,the technology using time migration seism of the residual oil distribution,PP-PS joint pre-stack inversion technology and the technology of comprehensively characterizing the reservoir heterogeneity were used to describe the spatial distribution of sand body and reservoir heterogeneity and predict the distribution of residual oil.On the basis stated above an oilfield development strategy of directional wells with multiple targets as well as multilateral horizontal wells is proposed.And consequently good result is acquired for potential tapping.
引文
[1]黄旭日.国外时移地震技术的研究状况[J].勘探地球物理进展,2003,26(1):7～12.
[2]裴素安.地质导向技术在冀东油田的应用[J].天然气勘探与开发,2006,29(4):57～59.
[2]裴素安.地质导向技术在冀东油田的应用[J].天然气勘探与开发,2006,29(4):57～59.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心