海上低幅度构造复杂河流相油田滚动勘探开发对策
|
摘要
渤海C油田构造幅度低、储层空间变化大、油水关系复杂,经过多年开发后含水率已高达95%,如何实现稳产是目前面临的问题。借鉴陆上油田滚动勘探开发经验,通过多专业结合,提出了具体的稳产对策:一是利用匹配滤波地震速度谱方法开展低幅度构造的深度预测,实现了油田内部老区块的滚动扩边;二是将地震资料与构型分析相结合进行河流相储层连通性研究,实现了油田内部老区块剩余油的精细挖潜;三是基于岩石物理分析创建适用于研究区的敏感流体指示因子,开展砂体的含油气性检测,在油田周边发现了新的潜力区块。通过以上稳产对策的实施,C油田新增地质储量11 150×10~4 m~3,预计累增油量可达1 570×10~4 m~3。本文研究成果可为类似海上油田的滚动勘探开发提供借鉴。
The C oilfield in Bohai is characterized by low amplitude structure,obvious variation of reservoir spaces,and complex oil-water relationships.After years of development,the water cut has reached 95%.How to achieve the stable production is a great concern currently.Specific countermeasures are proposed to stabilize the production by learning from the progressive exploration and development experience of onshore oilfields and comprehensively integrating concerned disciplines.Firstly,the depth of low-amplitude structure is predicted by the matched filtering seismic velocity spectrum method,realizing progressive expansion of old blocks inside the oilfield.Secondly,the seismic data and configuration analysis are integrated to study the connectivity of the fluvial reservoirs,which can achieve fine tapping of remaining oil in the old blocks.Thirdly,the petrophysical analysis-based sensitive fluid indicators suitable for the study area were established to carry out the oil and gas-bearing detection of sand bodies,and new potential blocks around the oilfield were found.Through the implementation of the above countermeasures,the geological reserves of C oilfield was increased by 111.5 million m~3,and the estimated cumulative oil increment can reach 15.7 million m~3.The studies of this paper can provide reference for the progressive exploration and development of similar offshore oilfields.
The C oilfield in Bohai is characterized by low amplitude structure,obvious variation of reservoir spaces,and complex oil-water relationships.After years of development,the water cut has reached 95%.How to achieve the stable production is a great concern currently.Specific countermeasures are proposed to stabilize the production by learning from the progressive exploration and development experience of onshore oilfields and comprehensively integrating concerned disciplines.Firstly,the depth of low-amplitude structure is predicted by the matched filtering seismic velocity spectrum method,realizing progressive expansion of old blocks inside the oilfield.Secondly,the seismic data and configuration analysis are integrated to study the connectivity of the fluvial reservoirs,which can achieve fine tapping of remaining oil in the old blocks.Thirdly,the petrophysical analysis-based sensitive fluid indicators suitable for the study area were established to carry out the oil and gas-bearing detection of sand bodies,and new potential blocks around the oilfield were found.Through the implementation of the above countermeasures,the geological reserves of C oilfield was increased by 111.5 million m~3,and the estimated cumulative oil increment can reach 15.7 million m~3.The studies of this paper can provide reference for the progressive exploration and development of similar offshore oilfields.
引文
[1]朱江,刘伟.海上油气田区域开发模式思考与实践[J].中国海上油气,2009,21(2):102-104.ZHU Jiang,LIU Wei.Thinking and conducting regional development modes of offshore oil&gas fields[J].China Offshore Oil and Gas,2009,21(2):102-104.
[2]胡光义,孙福街,范廷恩,等.海上油气田勘探开发一体化理念、基本思路和对策[J].中国海上油气,2013,25(6):61-69.HU Guangyi,SUN Fujie,FAN Tingen,et al.A conception of exploration-development integration and the relative working principles and procedure in offshore oil and gas fields[J].China Offshore Oil and Gas,2013,25(6):61-69.
[3]李茂,朱绍鹏,邹明生,等.涠西南凹陷复杂断块和隐蔽油气藏滚动勘探开发实践[J].中国海上油气,2015,27(4):73-79.DOI:10.11935/j.issn.1673-1506.2015.04.010.LI Mao,ZHU Shaopeng,ZOU Mingsheng,et al.Progressive exploration and development of complex fault-block and subtle reservoirs in Weixinan sag[J].China Offshore Oil and Gas,2015,27(4):73-79.DOI:10.11935/j.issn.1673-1506.2015.04.010.
[4]冯全雄,黄兆林,葛勇,等.模型研究指导层速度解释方法探索及应用[J].中国海上油气,2005,17(3):171-178.FENG Quanxiong,HUANG Zhaolin,GE Yong,et al.A research and application of the interval-velocity interpretation under the guidance of model study[J].China Offshore Oil and Gas,2005,17(3):171-178.
[5]周东红,姚以泰.基于射线追踪的CMP相干速度反演技术在渤海油田的应用[J].石油地球物理勘探,2010,45(3):392-397.ZHOU Donghong,YAO Yitai.Application of ray tracing based CMP coherent velocity inversion technique in Bohai Oilfield[J].Oil Geophysical Prospecting,2010,45(3):392-397.
[6]万欢,逄建东.海洋复杂陆坡深水区速度场建立方法探讨[J].物探化探计算技术,2012,34(1):1-6.WAN Huan,PANG Jiandong.The method research for velocity field establishing in the complex deepwater area[J].Computing Techniques for Geophysical and Geochemical Exploration,2012,34(1):1-6.
[7]岳大力,吴胜和,刘建民,等.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007,28(4):99-103.YUE Dali,WU Shenghe,LIU Jianmin,et al.An accurate method for anatomizing architecture of subsurface reservoir in point bar of meandering river[J].Acta Petrolei Sinica,2007,28(4):99-103.
[8]胡望水,雷秋艳,李松泽,等.储层宏观非均质性及对剩余油分布的影响:以白音查干凹陷锡林好来地区腾格尔组为例[J].石油地质与工程,2012,26(6):1-5.HU Wangshui,LEI Qiuyan,LI Songze,et al.Macroscopic heterogeneity of reservoir and its influence on the distribution of remaining oil:By taking Tengger formation of Xinlinhaolai area in the Baiyinchagan sag as an example[J].Petroleum Geology and Engineering,2012,26(6):1-5.
[9]孙新革,程中疆.风城油田重32井区SAGD试验区储层构型研究[J].石油天然气学报,2014,37(3):336-344.SUN Xinge,CHENG Zhongjiang.Reservoir architecture in SAGD area of wellblock Zhong 32 of Fengcheng oilfield[J].Journal of Oil and Gas Technology,2014,37(3):336-344.
[10]桂金咏,高建虎.面向实际储层的流体因子优选方法[J].石油地球物理勘探,2015,50(1):129-135.GUI Jinyong,GAO Jianhu.Reservoir-oriented fluid factor optimization method[J].Oil Geophysical Prospecting,2015,50(1):129-135.
[11]孙翠娟,张文.利用纵横波反射系数差检测含油气性方法及其应用效果:一种新的流体指示因子[J].中国海上油气,2007,19(1):13-17.SUN Cuijuan,ZHANG Wen.A method to detect hydrocarbon by using reflection coefficient difference between compression and shear waves:a new fluid factor[J].China Offshore Oil and Gas,2007,19(1):13-17.
[12]王凤兰,白振强,朱伟,等.曲流河砂体内部构型及不同开发阶段剩余油分布研究[J].沉积学报,2011,29(3):512-519.WANG Fenglan,BAI Zhenqiang,ZHU Wei,et al.Study on geological 3D reservoir architecture modeling and distribution of remaining oil of different development stage in meandering reservoir[J].Acta Sedimentologica Sinica,2011,29(3):512-519.
[13]曹哲,陈海清,沈亚,等.多方法联合识别河道技术在南八仙地区的应用[J].石油地球物理勘探,2011,46(增刊1):92-96.CAO Zhe,CHEN Haiqing,SHEN Ya,et al.Identification of channels by multi-attributes in Nanbaxian[J].Oil Geophysical Prospecting,2011,46(S1):92-96.
[14]刘波,赵翰卿,王良书,等.古河流废弃河道微相的精细描述[J].沉积学报,2001,19(3):394-398.LIU Bo,ZHAO Hanqing,WANG Liangshu,et al.The detailed description of ancient fluvial abandoned channel microfacies[J].Acta Sedimentologica Sinica,2001,19(3):394-398.
[15]孙夕平.三维地震相干体技术在目标区沉积相研究中的应用[J].石油物探,2004,43(6):591-594.SUN Xiping.Using coherency cube technique to classify sedimentary facies in the object area[J].Geophysical Prospecting for Petroleum,2004,43(6):591-594.
[2]胡光义,孙福街,范廷恩,等.海上油气田勘探开发一体化理念、基本思路和对策[J].中国海上油气,2013,25(6):61-69.HU Guangyi,SUN Fujie,FAN Tingen,et al.A conception of exploration-development integration and the relative working principles and procedure in offshore oil and gas fields[J].China Offshore Oil and Gas,2013,25(6):61-69.
[3]李茂,朱绍鹏,邹明生,等.涠西南凹陷复杂断块和隐蔽油气藏滚动勘探开发实践[J].中国海上油气,2015,27(4):73-79.DOI:10.11935/j.issn.1673-1506.2015.04.010.LI Mao,ZHU Shaopeng,ZOU Mingsheng,et al.Progressive exploration and development of complex fault-block and subtle reservoirs in Weixinan sag[J].China Offshore Oil and Gas,2015,27(4):73-79.DOI:10.11935/j.issn.1673-1506.2015.04.010.
[4]冯全雄,黄兆林,葛勇,等.模型研究指导层速度解释方法探索及应用[J].中国海上油气,2005,17(3):171-178.FENG Quanxiong,HUANG Zhaolin,GE Yong,et al.A research and application of the interval-velocity interpretation under the guidance of model study[J].China Offshore Oil and Gas,2005,17(3):171-178.
[5]周东红,姚以泰.基于射线追踪的CMP相干速度反演技术在渤海油田的应用[J].石油地球物理勘探,2010,45(3):392-397.ZHOU Donghong,YAO Yitai.Application of ray tracing based CMP coherent velocity inversion technique in Bohai Oilfield[J].Oil Geophysical Prospecting,2010,45(3):392-397.
[6]万欢,逄建东.海洋复杂陆坡深水区速度场建立方法探讨[J].物探化探计算技术,2012,34(1):1-6.WAN Huan,PANG Jiandong.The method research for velocity field establishing in the complex deepwater area[J].Computing Techniques for Geophysical and Geochemical Exploration,2012,34(1):1-6.
[7]岳大力,吴胜和,刘建民,等.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007,28(4):99-103.YUE Dali,WU Shenghe,LIU Jianmin,et al.An accurate method for anatomizing architecture of subsurface reservoir in point bar of meandering river[J].Acta Petrolei Sinica,2007,28(4):99-103.
[8]胡望水,雷秋艳,李松泽,等.储层宏观非均质性及对剩余油分布的影响:以白音查干凹陷锡林好来地区腾格尔组为例[J].石油地质与工程,2012,26(6):1-5.HU Wangshui,LEI Qiuyan,LI Songze,et al.Macroscopic heterogeneity of reservoir and its influence on the distribution of remaining oil:By taking Tengger formation of Xinlinhaolai area in the Baiyinchagan sag as an example[J].Petroleum Geology and Engineering,2012,26(6):1-5.
[9]孙新革,程中疆.风城油田重32井区SAGD试验区储层构型研究[J].石油天然气学报,2014,37(3):336-344.SUN Xinge,CHENG Zhongjiang.Reservoir architecture in SAGD area of wellblock Zhong 32 of Fengcheng oilfield[J].Journal of Oil and Gas Technology,2014,37(3):336-344.
[10]桂金咏,高建虎.面向实际储层的流体因子优选方法[J].石油地球物理勘探,2015,50(1):129-135.GUI Jinyong,GAO Jianhu.Reservoir-oriented fluid factor optimization method[J].Oil Geophysical Prospecting,2015,50(1):129-135.
[11]孙翠娟,张文.利用纵横波反射系数差检测含油气性方法及其应用效果:一种新的流体指示因子[J].中国海上油气,2007,19(1):13-17.SUN Cuijuan,ZHANG Wen.A method to detect hydrocarbon by using reflection coefficient difference between compression and shear waves:a new fluid factor[J].China Offshore Oil and Gas,2007,19(1):13-17.
[12]王凤兰,白振强,朱伟,等.曲流河砂体内部构型及不同开发阶段剩余油分布研究[J].沉积学报,2011,29(3):512-519.WANG Fenglan,BAI Zhenqiang,ZHU Wei,et al.Study on geological 3D reservoir architecture modeling and distribution of remaining oil of different development stage in meandering reservoir[J].Acta Sedimentologica Sinica,2011,29(3):512-519.
[13]曹哲,陈海清,沈亚,等.多方法联合识别河道技术在南八仙地区的应用[J].石油地球物理勘探,2011,46(增刊1):92-96.CAO Zhe,CHEN Haiqing,SHEN Ya,et al.Identification of channels by multi-attributes in Nanbaxian[J].Oil Geophysical Prospecting,2011,46(S1):92-96.
[14]刘波,赵翰卿,王良书,等.古河流废弃河道微相的精细描述[J].沉积学报,2001,19(3):394-398.LIU Bo,ZHAO Hanqing,WANG Liangshu,et al.The detailed description of ancient fluvial abandoned channel microfacies[J].Acta Sedimentologica Sinica,2001,19(3):394-398.
[15]孙夕平.三维地震相干体技术在目标区沉积相研究中的应用[J].石油物探,2004,43(6):591-594.SUN Xiping.Using coherency cube technique to classify sedimentary facies in the object area[J].Geophysical Prospecting for Petroleum,2004,43(6):591-594.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |