Abstract：Zeta Oilfield in the deep sea of West Africa has been developed for more than 10 years,and water displacement has been adopted for oil production for some time.However remaining-oil enrichment zones cannot be determined due to unclear directions of water flooding in injection-production well patterns and uneven displacement for different layers.To solve the problem,we carry out a research on the main oil bed,Layer 1#,and predict remaining-oil enrichment zones based on time-lapse seismic data.The adjacent-trace correlation coefficient on the time-lapse seismic data is optimized as a sensitive attribute for remaining oil prediction.Both the dynamic change of water flooding displacement and the water flooding frontier are clearly delineated on time-lapse seismic data.With the integration of geological structures,sand-body distribution,and adjacent-trace correlation coefficient,remaining oil enrichment zones are successfully predicted.And the following understandings are obtained:A.The impedance of oil-or water-content unconsolidated sand reservoirs is smaller than that of overlying deep-sea mudstone; B.The differences of time-lapse seismic data can basically indicate the range and direction of oil-water displacement,in which the correlation coefficient is more sensitive than others,it can better describe the edge position of oil-water displacement in the period of monitor survey acquisition; C.Based on the comprehensive analysis of oilfield structures,sand-body distribution,and correlation coefficient,three remaining oil zones of Layer 1# in 2013 are predicted,among which Zone Ⅲ and the southern part to Well Ⅰ-2 in Zone Ⅱ might be residual oil permanent retention zones.They need to be confirmed by further drilling.
秦绪英,朱海龙.时移地震技术及其应用现状分析[J].勘探地球物理进展,2007,30(3):219-225.QIN Xuying,ZHU Hailong.Analysis of the current status of time-lapse seismic technology[J].Progress in Exploration Geophysics,2007,30(3):219-225.
[2]
薛涛.时移地震技术在油田开发区块中的应用的分析研究[D].陕西西安:长安大学,2008.XUE Tao.Study on the Application of Time-lapse Seismic Technology in Oilfield Development[D].Graduate School of Chang'an University,Xi'an,Shaanxi,China,2008.
[3]
撒利明,甘利灯,黄旭日,等.中国石油集团油藏地球物理技术现状与发展方向[J].石油地球物理勘探,2014,49(3):611-626.SA Liming,GAN Lideng,HUANG Xuri,et al.The status and development direction of reservoir geophysics in CNPC[J].Oil Geophysical Prospecting,2014,49(3):611-626.
[4]
周家雄,谢玉洪,陈志宏,等.时移地震在中国海上气田的应用[J].石油地球物理勘探,2011,46(2):285-292.ZHOU Jiangxiong,XIE Yuhong,CHEN Zhihong,et al.Time-lapse seismic applications in China offshore gas field[J].Oil Geophysical Prospecting,2011,46(2):285-292.
石玉梅,姚逢昌,刘雯林.陆相碎屑岩油藏长期水驱时移地震监测的可行性[J].石油地球物理勘探,2005,40(3):328-333.SHI Yumei,YAO Fengchang,LIU Wenlin.Feasibility of time-lapse seismic monitoring in long-period water-drive continental facies clastic rock reservoir[J].Oil Geophysical Prospecting,2005,40(3):328-333.
[8]
石玉梅,姚逢昌,谢桂生,等.时移地震监测水驱前沿的方法和应用研究[J].地球物理学报,2006,49(4):1198-1205.SHI Yumei,YAO Fengchang,XIE Guisheng,et al.A study of the method for time-lapse seismic monitoring of water flooding front and its application[J].Chinese Journal of Geophysics,2006,49(4):1198-1205.
[9]
尹成,赵伟,鲍祥生,等.时移地震属性分析技术的基本框架[J].油气藏评价与开发,2006,29(6):386-393.YIN Chen,ZHAO Wei,BAO Xiangsheng,et al.Basic framework of time-lapse seismic attribute analysis[J].Reservoir Evaluation and Development,2006,29(6):386-393.
[10]
桑淑云,李丽霞,张金淼,等.海上时移地震综合解释技术[J].天然气工业,2007,27(增刊1):166-168.SANG Shuyun,LI Lixia,ZHANG Jinmiao,et al.Integrated time-lapse seismic interpretation technology on offshore[J].Natural Gas Industry,2007,27(S1):166-168.
[11]
石玉梅,刘雯林,姚逢昌.地震资料信噪比对油藏地震监测的影响[J].石油勘探与开发,2004,31(7):113-116.SHI Yemei,LIU Wenlin,YAO Fengchang.Effects of signal-to-noise ratio on seismic reservoir monitoring[J].Petroleum Exploration and Development,2004,31(7):113-116.
[12]
张绍红.非均质薄储层强化开采时延地震监督分析[J].西南石油大学学报(自然科学版),2009,31(2):53-55.ZHANG Shaohong.Time-lapse seismic monitoring study on heterogeneous thin reservoirs for enhanced exploitation[J].Journal of Southwest Petroleum University,2009,31(2):53-55.
[13]
鲍祥生,张金淼,尹成,等.时移地震平均能量属性差异与储层速度变化的关系[J].石油物探,2008,47(1):24-29.BAO Xiangsheng,ZHANG Jinmiao,YIN Cheng,et al.Relationship between the difference in average of time-lapse and the change of reservoir velocity[J].Geophysical Prospecting for Petroleum,2008,47(1):24-29.
[14]
曾婷,桂志先,施洋,等.时移地震属性分析技术在永安镇油田Y3断块开发中的应用[J].工程地球物理学报,2015,2(2):234-239.ZENG Ting,GUI Zhixian,SHI Yang,et al.The application of time-lapse seismic attributes technology to Y3 block development of Yong'an oilfield[J].Chinese Journal of Engineering Geophysics,2015,2(2):234-239.
[15]
李景叶,陈小宏,刘其成.高孔低胶结砂岩储层饱和度和压力变化的时移地震AVO响应[J].中国石油大学学报(自然科学版),2006,30(1):38-41.LI Jingye,CHEN Xiaohong,LIU Qicheng.Time-lapse seismic amplitude versus offset responses with change of saturation and pressure in unconsolidated sandstone reservoir with high porosity[J].Journal of China University of Petroleum,2006,30(1):38-41.
[16]
李景叶.薄互层油气藏时移地震反演数据解释[J].石油地球物理勘探,2012,47(3):442-451.LI Jingye.Time-lapse seismic interpretation on inversed impedance data of thin interlayer reservoir[J].Oil Geophysical Prospecting,2012,47(3):442-451.
[17]
张金淼,赵伟,李景叶.薄互层疏松砂岩储层时移地震AVO研究[J].西南石油大学学报,2007,29(3):7-11.ZHANG Jinmiao,ZHAO Wei,LI Jingye.Study on time-lapse seismic AVO of thin interbeded layer unconsolidated sandstone reservoir[J].Journal of Southwest Petroleum University,2007,29(3):7-11.
[18]
刘震,王大伟,赵伟.薄层时移地震差异波形成因类型分析[J].石油地球物理勘探,2007,42(3):290-295.LIU Zhen,WANG Dawei,ZHAO Wei.Analysis on genesis type of time-papse seismic differential waveform in thin layers[J].Oil Geophysical Prospecting,2007,42(3):290-295.
[19]
Gainski M,Macgregor A G,Freeman P J,et al.Turbidite reservoir compartmentalization and well targeting with 4D seismic and production data:Schiehallion Field,UK[J].Geological Society London Special Publications,2010,347(1):89-102.
[20]
Alvarez E,Macbeth C,Brain J.Quantifying remaining oil saturation using time-lapse seismic amplitude changes at fluid contacts[J].Petroleum Geoscience,2017,23(1):238-250.
[21]
Roggero F,Lerat O,Ding D Y,et al.History matching of production and 4D seismic data:Application to the Girassol field,offshore Angola[J].Oil & Gas Science and Technology,2012,67(2):237-262.
[22]
Huang Y,Macbeth C,Barkved O,et al.Enhanced dynamic interpretation from correlating well activity to frequently acquired 4D seismic signatures[J].The Leading Edge,2011,30(9):1042-1050.
[23]
Fan T E,Zhang X W,Hu G Y,et al.Time-lapse seismic monitoring for reservoir water-flooding recovery at Nigeria deep sea field[C].Extended Abstracts of 77th EAGE Conference & Exhibition,2015,doi:10.3997/2214-4609.201413426.
[24]
Nicholls M,Marler S,Dan M.Integrating 3D and 4D rock physics inversion data into better understanding of field and reservoir behavior to mitigate production decline[C].SEG Technical Program Expanded Abstracts,2014,33,Document ID:SEG-2014-0711.
[25]
Zhu Z,Jiang X,Zhao W,et al.Time-lapse prestack elastic impedance inversion based on seismic difference data[C].SEG Technical Program Expanded Abstracts,2011,30:2497-2501.
[26]
Jiang X,Zhu Z,Song L.Prediction of oil and gas saturation and/or pressure variation with time-lapse seismic elastic parameter inversion[C].SEG Technical Program Expanded Abstracts,2009,28:3544-3548.
[27]
宋春华,何贤科,景凤江.海上高含水油田增产挖潜技术——以海上A油田为例[J].石油天然气学报,2012,34(1):123-127.SONG Chunhua,HE Xianke,JING Fengjiang.Technology for enhancing oil recovery and tapping the potential for high water-cut offshore oilfields:By taking an offshore oilfield for example[J].Journal of Oil and Gas Technology,2012,34(1):123-127.
[28]
张会来,范廷恩,胡光义,等.水驱油藏时移地震叠前匹配反演——西非深水扇A油田时移地震研究实例[J].石油地球物理勘探,2015,50(3):530-535,564.ZHANG Huilai,FAN Ting'en,HU Guangyi,et al.Time-lapse seismic matching inversion in water flooding reservoir:a case of deep-water fan in the oilfield A,west Africa[J].Oil Geophysical Prospecting,2015,50(3):530-535,564.
[29]
Ouair Y E L,Stronen L K.Value creation from 4D seismic at the Cullfaks Field:achievements and new challenges[C].SEG Technical Program Expanded Abstracts,2006,25:3250-3254.
[30]
Digranes P,Strønen L K,Solheim O A,et al.4D seismic at the Gullfaks Field:mapping the remaining oil[C].Extended Abstracts of 61st EAGE Conference & Exhibition,1999,doi:10.3997/2214-4609.201407729.
[31]
Todnem A C,Arnesen L,Gaasø R.4D seismic and through tubing drilling and completion wells extend life on the Gullfaks Field[C].SPE/IADC Drilling Conference,2005,Document ID:SPE-92551-MS.
[32]
Yin Z,Macbeth C,Chassagne R.A well-to-seismic interpretation of interwell connectivity using well behaviour data and 4D seismic surveys[C].Extended Abstracts of 77th EAGE Conference & Exhibition,2015,doi:10.3997/2214-4609.201413458.
[33]
Li L,Gan L,Zhang X Z,et al.An integrated method for remaining oil prediction based on time lapse seismic inversion and its application[C].SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition,2015,Document ID:SPE-176397-MS.
[34]
易维启,李清仁,张国才,等.大庆TN油田时移地震研究与剩余油分布规律预测[J].油气藏评价与开发,2003,26(1):61-65.YI Weiqi,LI Qingren,ZHANG Guocai,et al.Study on time-lapse seismic and prediction of the distribution of residual oil in TN Oilfield,Daqing[J].Reservoir Eva-luation and Development,2003,26(1):61-65.
孙德胜,凌云,夏竹,等.3.5维地震勘探方法及其应用研究[J].石油物探,2010,49(5):460-471.SUN Desheng,LING Yun,XIA Zhu,et al.Methodology and application of 3.5D seismic exploration[J].Geophysical Prospecting for Petroleum,2010,49(5):460-471.
[37]
汪勇,阳和华,桂志先.流体替代的地震反射振幅特征分析[J].物探与化探,2012,36(6):991-995.WANG Yong,YANG Hehua,GUI Zhixian.An analysis of the amplitude characteristics of seismic reflec-tion during fluid replacing[J].Geophysical & Geo-chemical Exploration,2012,36(6):991-995.
[38]
汪勇,曾婷,桂志先.基于正演模拟的时移地震属性分析[J].工程地球物理学报,2011,8(2):31-36.WANG Yong,ZENG Ting,GUI Zhixian.Analysis of time-lapse seismic attribute based on forward simulation[J].Chinese Journal of Engineering Geophysics,2011,8(2):31-36.
