边际油田河流相储集层表征关键技术
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摘要
为了确定边际油田储集层的分布和特征、有效开发海上边际油田,以渤海湾盆地Q33-1油田新近系明化镇组下段河流相储集层为例,综合地震、地质、测井等资料,研究边际油田河流相储集层表征关键技术。通过河流相砂体井震标定、三维地震精细解释和边界精细刻画,雕刻河流相储集层砂体外部形态,描述其内部非均质性;根据高分辨率三维地震资料,利用井点外推宽度法、变差函数分析法建立河流相储集层地质知识库;结合类比密井网油田储集层分布特征,提出了侧向相变对比模式、叠置砂体对比模式、河道下切对比模式等3种河流相储集层井间对比模式。综合以上3种储集层表征技术,确定了Q33-1油田储集层分布的最可能模式,并以此模式为依据设计油田开发方案,取得了较好的经济效益。
Fluvial reservoirs of the lower member of the Neogene Minghuazhen Formation in Q33-1 Oilfield,Bohai Bay Basin,are studied as examples to determine the distribution and characteristics of marginal reservoirs and develop offshore marginal oilfields effectively.Based on seismic,geological and logging data,three key technologies for the fluvial reservoir characterization of marginal reservoirs are proposed.The geometry and heterogeneity of fluvial sandbodies were studied through well-seismic calibration,3D seismic interpretation and boundaries characterization.The geological knowledge database of fluvial reservoirs was established by the methods of width prediction outside wells and variogram analysis based on the high resolution 3D seismic data.Three types of well correlation modes of vertical facies changes,stacking sandbodies,incised channels,were constructed by integrating the analogous data from the oilfield with dense well pattern.According to the above three techniques of reservoir characterization,the most likely mode of reservoir distribution was established,based on which the oil field development plan was made and economic benefits have been gained.
Fluvial reservoirs of the lower member of the Neogene Minghuazhen Formation in Q33-1 Oilfield,Bohai Bay Basin,are studied as examples to determine the distribution and characteristics of marginal reservoirs and develop offshore marginal oilfields effectively.Based on seismic,geological and logging data,three key technologies for the fluvial reservoir characterization of marginal reservoirs are proposed.The geometry and heterogeneity of fluvial sandbodies were studied through well-seismic calibration,3D seismic interpretation and boundaries characterization.The geological knowledge database of fluvial reservoirs was established by the methods of width prediction outside wells and variogram analysis based on the high resolution 3D seismic data.Three types of well correlation modes of vertical facies changes,stacking sandbodies,incised channels,were constructed by integrating the analogous data from the oilfield with dense well pattern.According to the above three techniques of reservoir characterization,the most likely mode of reservoir distribution was established,based on which the oil field development plan was made and economic benefits have been gained.
引文
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[13]李少华,张昌民,尹艳树.河流相储层随机建模的几种方法[J].西安石油学院学报:自然科学版,2003,18(5):10-16.Li Shaohua,Zhang Changmin,Yin Yanshu.Several stochasticmodeling methods for fluvial reservoirs[J].Journal of Xi’anPetroleum Institute:Natural Science Edition,2003,18(5):10-16.
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[15]Jia Ailin,Mu Longxin,Huang Shiyan,et al.Geological knowledgedata-base of delta-fan[R].SPE 64629,2000.
[16]马世忠,孙雨,范广娟,等.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,26(4):632-639.Ma Shizhong,Sun Yu,Fan Guangjuan,et al.The method forstudying thin interbed architecture of burial meandering channelsandbody[J].Acta Sedimentologica Sinica,2008,26(4):632-639.
[17]加东辉,杨香华,吴小红,等.中等井网密度控制下的浅水三角洲相隔夹层研究:以渤中25-1南油田为例[J].油气地质与采收率,2005,12(2):19-22.Jia Donghui,Yang Xianghua,Wu Xiaohong,et al.The study ofinterbed and barrier of shallow water delta in the oilfield with middledense well pattern:A case of Bozhong 25-1S oilfield[J].PetroleumGeology and Recovery Efficiency,2005,12(2):19-22.
[2]李国珍,姚约东,李相方,等.论海上边际油田开发的油藏工程研究[J].钻采工艺,2007,30(5):33-35.Li Guozhen,Yao Yuedong,Li Xiangfang,et al.Reservoirengineering study for offshore marginal fields development[J].Drilling&Production Technology,2007,30(5):33-35.
[3]张宪国,林承焰,张涛,等.大港滩海地区地震沉积学研究[J].石油勘探与开发,2011,38(1):40-46.Zhang Xianguo,Lin Chengyan,Zhang Tao,et al.Seismicsedimentologic research in shallow sea areas,Dagang[J].PetroleumExploration and Development,2011,38(1):40-46.
[4]陈学海,卢双舫,薛海涛,等.海拉尔盆地呼和湖凹陷白垩系地震相[J].石油勘探与开发,2011,38(3):321-327,335.Chen Xuehai,Lu Shuangfang,Xue Haitao,et al.Seismic facies ofthe Cretaceous in the Huhehu Depression,Hailar Basin[J].PetroleumExploration and Development,2011,38(3):321-327,335.
[5]罗红梅,朱毅秀,穆星,等.渤海湾渤南洼陷深层湖相滩坝储集层沉积微相预测[J].石油勘探与开发,2011,38(2):182-190.Luo Hongmei,Zhu Yixiu,Mu Xing,et al.Seismic facies predictionof lacustrine beach and bar reservoirs in the deep zone of the BonanSubsag,Bohai Bay Basin[J].Petroleum Exploration andDevelopment,2011,38(2):182-190.
[6]贾爱林,程立华.数字化精细油藏描述程序方法[J].石油勘探与开发,2010,37(6):709-715.Jia Ailin,Cheng Lihua.The technique of digital detailed reservoircharacterization[J].Petroleum Exploration and Development,2010,37(6):709-715.
[7]吴胜和,张一伟,李恕军,等.提高储层随机建模精度的地质约束原则[J].石油大学学报:自然科学版,2001,25(1):55-58.Wu Shenghe,Zhang Yiwei,Li Shujun,et al.The geologicalcontrolling principle to improve the precision of stochasticallymodeling[J].Journal of the University of Petroleum,China:Editionof Natural Science,2001,25(1):55-58.
[8]张伟,林承焰,周明晖,等.地质模型动态更新方法在关家堡油田的应用[J].石油勘探与开发,2010,37(2):220-225.Zhang Wei,Lin Chengyan,Zhou Minghui,et al.Application ofgeological model dynamic updating method in Guanjiapu Oilfield,Dagang[J].Petroleum Exploration and Development,2010,37(2):220-225.
[9]张荣虎,姚根顺,寿建峰,等.沉积、成岩、构造一体化孔隙度预测模型[J].石油勘探与开发,2011,38(2):145-151.Zhang Ronghu,Yao Genshun,Shou Jianfeng,et al.An integrationporosity forecast model of deposition,diagenesis and structure[J].Petroleum Exploration and Development,2011,38(2):145-151.
[10]霍春亮,古莉,赵春明,等.基于地震、测井和地质综合一体化的储层精细建模[J].石油学报,2007,28(6):66-71.Huo Chunliang,Gu Li,Zhao Chunming,et al.Integrated reservoirgeological modeling based on seismic,log and geological data[J].Acta Petrolei Sinica,2007,28(6):66-71.
[11]李毓,杨长青.储层地质建模策略及其技术方法应用[J].石油天然气学报,2009,31(3):30-35.Li Yu,Yang Changqing.Strategy of reservoir geological modelingand application of technical method[J].Journal of Oil and GasTechnology,2009,31(3):30-35.
[12]赵翰卿,付志国,吕晓光.储层层次分析和模式预测描述法[J].大庆石油地质与开发,2004,23(5):74-77.Zhao Hanqing,Fu Zhiguo,LüXiaoguang.Reservoir type analysisand model prediction description method[J].Petroleum Geology&Oilfield Development in Daqing,2004,23(5):74-77.
[13]李少华,张昌民,尹艳树.河流相储层随机建模的几种方法[J].西安石油学院学报:自然科学版,2003,18(5):10-16.Li Shaohua,Zhang Changmin,Yin Yanshu.Several stochasticmodeling methods for fluvial reservoirs[J].Journal of Xi’anPetroleum Institute:Natural Science Edition,2003,18(5):10-16.
[14]贾爱林,何东博,何文祥,等.应用露头知识库进行油田井间储层预测[J].石油学报,2003,24(6):51-53,58.Jia Ailin,He Dongbo,He Wenxiang,et al.Application of outcropgeological knowledge database to prediction of inter-well reservoirin oilfield[J].Acta Petrolei Sinica,2003,24(6):51-53,58.
[15]Jia Ailin,Mu Longxin,Huang Shiyan,et al.Geological knowledgedata-base of delta-fan[R].SPE 64629,2000.
[16]马世忠,孙雨,范广娟,等.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,26(4):632-639.Ma Shizhong,Sun Yu,Fan Guangjuan,et al.The method forstudying thin interbed architecture of burial meandering channelsandbody[J].Acta Sedimentologica Sinica,2008,26(4):632-639.
[17]加东辉,杨香华,吴小红,等.中等井网密度控制下的浅水三角洲相隔夹层研究:以渤中25-1南油田为例[J].油气地质与采收率,2005,12(2):19-22.Jia Donghui,Yang Xianghua,Wu Xiaohong,et al.The study ofinterbed and barrier of shallow water delta in the oilfield with middledense well pattern:A case of Bozhong 25-1S oilfield[J].PetroleumGeology and Recovery Efficiency,2005,12(2):19-22.
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