夹层倾角计算新方法及其在滩坝砂泥质夹层描述中的应用
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摘要
为了研究滩坝砂体内部剩余油分布模式,定量描述泥质夹层的发育规律,揭示夹层发育模式对剩余油的控制作用,以港中油田沙一段滩坝砂为例,在岩心资料、测井资料及青海湖现代滩坝砂沉积考察基础上,对滩坝砂内部夹层3种类别进行了识别和划分。基于精细三维构型模型和倾角测量原理基础上提出"三维层面扫描最大值法"计算夹层倾角的计算新方法,实现了对"小井距对子法计算方法"的改进。该方法在滩坝砂体内部夹层的定量描述中得到了初步应用,最终建立了泥质夹层发育模式。研究表明,滩坝砂单一坝内部侧向泥质夹层倾角在2°~5°之间,夹层平均密度为1条/70 m,坝内增生体的规模在60~90 m。
In order to study the distribution of the internal residual oil in a beach-bar sand body, and to reveal the interbed development pattern, the mud interlayer should be described quantitatively. This paper considers three interbed types of bar sand bodies, using the core data, the logging data in the Gangzhong oilfield and the sedimentation investigation results in Qinghai Lake.With a 3D architecture model and the principle of the dip angle measurement, a new approach of calculating the dip angle of the interbed within a single bar sand body is proposed: Scanning of the maximum along the interface in the 3D model. The twin well spacing calculation method is improved. The development pattern of the interbed is obtained by using a quantitative description of the interlayer. A new understanding of the interbed of the bar sand body is achieved. In the Gangzhong oilfield, the muddy interbed is mainly developed within a single bar sloping to the center of the basin, and the dip angle is between 2°and 5°. Meanwhile, there is one muddy interbed every 70 m. The scale of the hyperplasia sandbody is about 60-90 m.
In order to study the distribution of the internal residual oil in a beach-bar sand body, and to reveal the interbed development pattern, the mud interlayer should be described quantitatively. This paper considers three interbed types of bar sand bodies, using the core data, the logging data in the Gangzhong oilfield and the sedimentation investigation results in Qinghai Lake.With a 3D architecture model and the principle of the dip angle measurement, a new approach of calculating the dip angle of the interbed within a single bar sand body is proposed: Scanning of the maximum along the interface in the 3D model. The twin well spacing calculation method is improved. The development pattern of the interbed is obtained by using a quantitative description of the interlayer. A new understanding of the interbed of the bar sand body is achieved. In the Gangzhong oilfield, the muddy interbed is mainly developed within a single bar sloping to the center of the basin, and the dip angle is between 2°and 5°. Meanwhile, there is one muddy interbed every 70 m. The scale of the hyperplasia sandbody is about 60-90 m.
引文
[1]李阳.我国油藏开发地质研究进展[J].石油学报,2007,28(3):75-79.Li Yang.Progress of research on reservoir development geology in China[J].Acta Petrolel Sinica,2007,28(3):75-79.
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[3]Kupfersberger H,Deutsch C V.Methodology for integrating analoggeologic data in 3-D variagram modelling[J].AAPG Bulletin,1999,83(8):1262-1278.
[4]Eoker M D,Glfand A E.Bayesian modelling and inference forgeometrically anisotropic spatial data[J].Maththematical Geology,1999,31(1):67-83.
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[7]裘怿楠,许仕策,肖敬修.沉积方式与碎屑岩储层的层内非均质性[J].石油学报,1985,6(1):41-49.Qiu Yilan,Xu Shice,Xiao Jingxiu.Mode of deposition andintraormtional anisotropic property of reservoir of clastic rock[J].ActaPetrolel Sinica,1985,6(1):41-49.
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[9]王金铎,许淑梅,于建国,等.用波形分析法预测滨浅湖滩坝砂岩储层:以东营凹陷西部地区沙-4上亚段为例[J].地球科学:中国地质大学学报,2008,33(5):627-634.Wang Jinduo,Xu Shumei,Yu Jianguo,et al.Prediction of beach-barsand reservoirs using waveform analysis:A case study on Es4s in thewestarea of the Dongying Sag[J].Earth Science:Journal of ChinaUniversity of Geosciences,2008,33(5):627-634.
[10]王萍,钟建华,邱隆伟,等.东营凹陷陈官庄地区沙四段下亚段储层沉积相[J].油气地质与采收率,2009,16(2):30-32.Wang ping,Zhong Jianhua,Qiu Longwei,et al.Alfred chuang Chenarea in dongying sag under the four section reservoir sedimentary facies[J].Oil and Gas Geology and Oil Recovery,2009,16(2):30-32.
[11]邓宏文,马立祥,姜正龙,等.车镇凹陷大王北地区沙二段滩坝成因类型、分布规律与控制因素研究[J].沉积学报,2008,26(5):716-724.Deng Hongwen,Ma lixiang,Jiang Zhenglong,et al.Sand bankgeneration typesand Its controls on their distribution,the secondmember of Shahejie formation,lower Tertiary,Dawangbei,Chezhendepression[J].Acta Sedimentologica Sinica,2008,26(5):716-724.
[12]温立峰,吴胜和,王延忠,等.河控三角洲河口坝地下储层构型精细解剖方法[J].中南大学学报:自然科学版,2011,42(4):1072-1078.Wen Lifeng,Wu Shenghe,Wang Yanzhong,et al.An accurate methodfor anatomizing architecture of subsurface reservoir in mouth bar offluvial dominated delta[J].Journal of Central South University:NaturalScience Edition,2011,42(4):1072-1078.
[13]周银邦,吴胜和,计秉玉,等.曲流河储层构型表征研究进展[J].地球科学进展,2011,26(7):695-701.Zhou Yinbang,Wu Shenghe,Ji Bingyu,et al.Research progress onthe characterization of fluvial reservoir architecture[J].Advances inEarth Science,2011,26(7):695-701.
[14]Keumsuk L,Zeng X X,George A M,et al.A ground-penetratingradar survey of a delta-front reservoir analog in the wall creekmember,frontier formation[J].AAPG Bulletin,2005,89(9):1139-1155.
[15]张善严,刘波,陈国飞,等.水平井岩心侧积夹层初探[J].大庆石油地质与开发,2007,26(6):56-60.Zhang Shanyan,Liu Bo,Chen Guofei,et al.Primary research onlateral accretion with horizontal well core samples[J].PetroleumGeology&Oilfield Development in Daqing,2007,26(6):56-60.
[16]徐建华,朱德怀,陈宝树,等.利用水平井电阻率测井资料判断油水界面和薄夹层[J].石油地球物理勘探,1996,31(4):541-545.Xu Jianhua,Zhu Dehuai,Chen Baoshu,et al.Determining both oil-water contact and thin interbed by analysing the resistivity log data ofhorizontal borehole[J].Oil Geophysical Prospecting,1996,31(4):541-545.
[17]周银邦,吴胜和,岳大力,等.点坝内部侧积层倾角控制因素分析及识别方法[J].中国石油大学学报:自然科学版,2009,33(2):7-11.Zhou Yinbang,Wu Shenghe,Yue Dali,et al.Controlling factoranalysis and identification method of lateral accretion shale beddingsangle in point bar[J].Joural of China University of Petroleum:Editionof Natural Science,2009,33(2):7-11.
[18]周新茂,高兴军,田昌炳,等.曲流河点坝内部构型要素的定量描述及应用[J].天然气地球科学,2010,21(6):421-426.Zhou Xinmao,Gao Xingjun,Tian Changbing,et al.Meandering riverpoint bar and a quantitative description of internal configurationelements and applications[J].Natural Gas in Earth Science,2010,21(6):421-426.
[19]王萍,钟建华,邱隆伟,等.东营凹陷陈官庄地区沙四段下亚段储层沉积相[J].油气地质与采收率,2009,16(2):30-32.Wang Ping,Zhong Jianhua,Qiu Longwei,et al.Sedimentary facies oflower Sha4 member reservoir in Chenguanzhuang area,Dongyingdepression[J].Petroleum Geology and Recovery Efficiency,2009,16(2):30-32.
[20]王升兰.博兴洼陷沙四上亚段滩坝沉积体系研究[D].北京:中国地质大学,2008.Wang Shenglan.Boxing four member of the Shahejie formation in theupper submember beach bar system research[D].Beijing:ChinaUniversity of Geosciences,2008.
[21]陈世悦,杨剑萍,操应长.惠民凹陷西部下第三系沙河街组两种滩坝沉积特征[J].煤田地质与勘探,2000,28(3):1-4.Chen Shiyue,Yang Jianping,Cao Yingchang.Sedimentarycharacteristics of two kinds of beach-bars of Oligocene Shahejieformations in western Huimin depression[J].Coal Geology&Exploration,2000,28(3):1-4.
[22]IvanF,DavidH,JonathanR.Anewapproachforoutcropcharacterizationandgeostatisticalanalysisofalow-sinuosityfluvial-dominatedsuccessionusing digital outcrop models:Upper Triassic Oukaimeden sandstoneformation,central High Atlas,Morocco[J].AAPG Bulletin,2009,93(6):795-827.
[23]李志鹏,彭学红,林承焰,等.高浅南区明化镇组单砂体夹层对剩余油的控制作用[J].石油天然气学报,2011,33(9):23-26.Li Zhipeng,Peng Xuehong,Lin Chengyan,et al.High light for thesouthern district Ming town set of single sand body interlayer controlfunction of remaining oil[J].Oil&Gas Journal,2011,33(9):23-26.
[24]吴胜和.储层表征与建模[M].北京:石油工业出版社,2010.Wu Shenghe.Reservoir characterization and modeling[M].Beijing:Petroleum Industry Press,2010.
[25]于德水.萨北油田曲流型河道砂体建筑结构研究[J].断块油气田,2011,18(1):30-33.Yu Deshui.Study on architecture of meander channel sandbody inSabei oilfieid[J].Fault-block Oil Gas Field,2011,18(1):30-33.
[2]Seifert D,Fensen J L.Using sequential indicator simulation as a tool inreservoir description.Issues and uncertainties[J].Mathematical Geology,1999,31(5):527-550.
[3]Kupfersberger H,Deutsch C V.Methodology for integrating analoggeologic data in 3-D variagram modelling[J].AAPG Bulletin,1999,83(8):1262-1278.
[4]Eoker M D,Glfand A E.Bayesian modelling and inference forgeometrically anisotropic spatial data[J].Maththematical Geology,1999,31(1):67-83.
[5]Strebelle S.Conditional simulation of complex geological structuresusing multiple point statistics[J].Mathematical Geology,2002,34(1):1-21.
[6]Maharaja A,Journel A G.Hierarchical simulation of multiple-faciesreservoirs using multiple-point geostatistics[C].SPE Annual TechnicalConference and Exhibition,Dallas Texas,October 9-12,2005.
[7]裘怿楠,许仕策,肖敬修.沉积方式与碎屑岩储层的层内非均质性[J].石油学报,1985,6(1):41-49.Qiu Yilan,Xu Shice,Xiao Jingxiu.Mode of deposition andintraormtional anisotropic property of reservoir of clastic rock[J].ActaPetrolel Sinica,1985,6(1):41-49.
[8]杨国安,邢卫东,刘广华,等.港中开发区沙河街组沉积微相与油气分布[J].西北大学学报:自然科学版,2004,34(1):93-96.Yang Guoan,Xing Weidong,Liu Guanghua,et al.The lacustrinereservoir microface modles and gas-oil distribution in Shahejieformation of Gangzhong oilfield[J].Journal of Northwest University:Natural Science Edition,2004,34(1):93-96.
[9]王金铎,许淑梅,于建国,等.用波形分析法预测滨浅湖滩坝砂岩储层:以东营凹陷西部地区沙-4上亚段为例[J].地球科学:中国地质大学学报,2008,33(5):627-634.Wang Jinduo,Xu Shumei,Yu Jianguo,et al.Prediction of beach-barsand reservoirs using waveform analysis:A case study on Es4s in thewestarea of the Dongying Sag[J].Earth Science:Journal of ChinaUniversity of Geosciences,2008,33(5):627-634.
[10]王萍,钟建华,邱隆伟,等.东营凹陷陈官庄地区沙四段下亚段储层沉积相[J].油气地质与采收率,2009,16(2):30-32.Wang ping,Zhong Jianhua,Qiu Longwei,et al.Alfred chuang Chenarea in dongying sag under the four section reservoir sedimentary facies[J].Oil and Gas Geology and Oil Recovery,2009,16(2):30-32.
[11]邓宏文,马立祥,姜正龙,等.车镇凹陷大王北地区沙二段滩坝成因类型、分布规律与控制因素研究[J].沉积学报,2008,26(5):716-724.Deng Hongwen,Ma lixiang,Jiang Zhenglong,et al.Sand bankgeneration typesand Its controls on their distribution,the secondmember of Shahejie formation,lower Tertiary,Dawangbei,Chezhendepression[J].Acta Sedimentologica Sinica,2008,26(5):716-724.
[12]温立峰,吴胜和,王延忠,等.河控三角洲河口坝地下储层构型精细解剖方法[J].中南大学学报:自然科学版,2011,42(4):1072-1078.Wen Lifeng,Wu Shenghe,Wang Yanzhong,et al.An accurate methodfor anatomizing architecture of subsurface reservoir in mouth bar offluvial dominated delta[J].Journal of Central South University:NaturalScience Edition,2011,42(4):1072-1078.
[13]周银邦,吴胜和,计秉玉,等.曲流河储层构型表征研究进展[J].地球科学进展,2011,26(7):695-701.Zhou Yinbang,Wu Shenghe,Ji Bingyu,et al.Research progress onthe characterization of fluvial reservoir architecture[J].Advances inEarth Science,2011,26(7):695-701.
[14]Keumsuk L,Zeng X X,George A M,et al.A ground-penetratingradar survey of a delta-front reservoir analog in the wall creekmember,frontier formation[J].AAPG Bulletin,2005,89(9):1139-1155.
[15]张善严,刘波,陈国飞,等.水平井岩心侧积夹层初探[J].大庆石油地质与开发,2007,26(6):56-60.Zhang Shanyan,Liu Bo,Chen Guofei,et al.Primary research onlateral accretion with horizontal well core samples[J].PetroleumGeology&Oilfield Development in Daqing,2007,26(6):56-60.
[16]徐建华,朱德怀,陈宝树,等.利用水平井电阻率测井资料判断油水界面和薄夹层[J].石油地球物理勘探,1996,31(4):541-545.Xu Jianhua,Zhu Dehuai,Chen Baoshu,et al.Determining both oil-water contact and thin interbed by analysing the resistivity log data ofhorizontal borehole[J].Oil Geophysical Prospecting,1996,31(4):541-545.
[17]周银邦,吴胜和,岳大力,等.点坝内部侧积层倾角控制因素分析及识别方法[J].中国石油大学学报:自然科学版,2009,33(2):7-11.Zhou Yinbang,Wu Shenghe,Yue Dali,et al.Controlling factoranalysis and identification method of lateral accretion shale beddingsangle in point bar[J].Joural of China University of Petroleum:Editionof Natural Science,2009,33(2):7-11.
[18]周新茂,高兴军,田昌炳,等.曲流河点坝内部构型要素的定量描述及应用[J].天然气地球科学,2010,21(6):421-426.Zhou Xinmao,Gao Xingjun,Tian Changbing,et al.Meandering riverpoint bar and a quantitative description of internal configurationelements and applications[J].Natural Gas in Earth Science,2010,21(6):421-426.
[19]王萍,钟建华,邱隆伟,等.东营凹陷陈官庄地区沙四段下亚段储层沉积相[J].油气地质与采收率,2009,16(2):30-32.Wang Ping,Zhong Jianhua,Qiu Longwei,et al.Sedimentary facies oflower Sha4 member reservoir in Chenguanzhuang area,Dongyingdepression[J].Petroleum Geology and Recovery Efficiency,2009,16(2):30-32.
[20]王升兰.博兴洼陷沙四上亚段滩坝沉积体系研究[D].北京:中国地质大学,2008.Wang Shenglan.Boxing four member of the Shahejie formation in theupper submember beach bar system research[D].Beijing:ChinaUniversity of Geosciences,2008.
[21]陈世悦,杨剑萍,操应长.惠民凹陷西部下第三系沙河街组两种滩坝沉积特征[J].煤田地质与勘探,2000,28(3):1-4.Chen Shiyue,Yang Jianping,Cao Yingchang.Sedimentarycharacteristics of two kinds of beach-bars of Oligocene Shahejieformations in western Huimin depression[J].Coal Geology&Exploration,2000,28(3):1-4.
[22]IvanF,DavidH,JonathanR.Anewapproachforoutcropcharacterizationandgeostatisticalanalysisofalow-sinuosityfluvial-dominatedsuccessionusing digital outcrop models:Upper Triassic Oukaimeden sandstoneformation,central High Atlas,Morocco[J].AAPG Bulletin,2009,93(6):795-827.
[23]李志鹏,彭学红,林承焰,等.高浅南区明化镇组单砂体夹层对剩余油的控制作用[J].石油天然气学报,2011,33(9):23-26.Li Zhipeng,Peng Xuehong,Lin Chengyan,et al.High light for thesouthern district Ming town set of single sand body interlayer controlfunction of remaining oil[J].Oil&Gas Journal,2011,33(9):23-26.
[24]吴胜和.储层表征与建模[M].北京:石油工业出版社,2010.Wu Shenghe.Reservoir characterization and modeling[M].Beijing:Petroleum Industry Press,2010.
[25]于德水.萨北油田曲流型河道砂体建筑结构研究[J].断块油气田,2011,18(1):30-33.Yu Deshui.Study on architecture of meander channel sandbody inSabei oilfieid[J].Fault-block Oil Gas Field,2011,18(1):30-33.