济阳坳陷第三系不整合地层油藏地震描述技术
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摘要
针对济阳坳陷第三系地层油藏岩性、物性、含油性钻前预测难度大,成藏条件钻前预测可靠性程度低,地震描述技术存在很大的不确定性等问题,分析了三级不整合地层油藏的相关地震特性,并根据不同序级的不整合特征,建立了针对性的精细地层油藏配套描述技术,形成了以振幅属性、地震相、约束反演为主的一级不整合地层油藏描述技术和以高精度层序分析、古地形分析、频谱成像和叠前反演技术为主的二、三级不整合地层油藏描述技术,提高了地震预测准确度。通过实际应用,胜利油区"十五"以来地层油藏累积探明石油地质储量约达2×108t。
There are great difficulties in lithology,physical properties and oil-bearing probability prediction,low reliability in predicting pool-forming conditions before drilling,and great uncertainty of seismic description techniques in Tertiary stratigraphic reservoirs in Jiyang Depression. Related seismic characteristic of three grades unconformity stratigraphic reservoirs were analyzed. Ac-cording to the unconformity characteristics in different grade,the fine reservoir description techniques were built up which include the grade 1 unconformity stratigraphic reservoirs description by means of amplitude attribute,seismic facies and constraint inver-sion techniques,and grade 2-3 unconformity stratigraphic reser-voirs description by means of high accuracy sequence analysis,palaeotopography analysis,spectrum imaging and prestack inver-sion techniques. The seismic prediction accuracy has been highly improved. The application of these techniques has effectively pro-moted the stratigraphic reservoir prospecting in Shengli explora-tion area during the Tenth Five-Year Plan,the proved accumula-ted reserves of the stratigraphic reservoirs reaches 2×108t.
There are great difficulties in lithology,physical properties and oil-bearing probability prediction,low reliability in predicting pool-forming conditions before drilling,and great uncertainty of seismic description techniques in Tertiary stratigraphic reservoirs in Jiyang Depression. Related seismic characteristic of three grades unconformity stratigraphic reservoirs were analyzed. Ac-cording to the unconformity characteristics in different grade,the fine reservoir description techniques were built up which include the grade 1 unconformity stratigraphic reservoirs description by means of amplitude attribute,seismic facies and constraint inver-sion techniques,and grade 2-3 unconformity stratigraphic reser-voirs description by means of high accuracy sequence analysis,palaeotopography analysis,spectrum imaging and prestack inver-sion techniques. The seismic prediction accuracy has been highly improved. The application of these techniques has effectively pro-moted the stratigraphic reservoir prospecting in Shengli explora-tion area during the Tenth Five-Year Plan,the proved accumula-ted reserves of the stratigraphic reservoirs reaches 2×108t.
引文
[1]隋风贵,王学军,卓勤功,等.陆相断陷盆地地层油藏勘探现状与研究方向———以济阳坳陷为例[J].油气地质与采收率,2007,14(1):1-6.
[2]隋风贵,赵乐强,林会喜,等.济阳坳陷第三系地层油藏形成机制与组合模式[J].油气地质与采收率,2005,12(6):1-5.
[3]卓勤功,向立宏,银燕,等.断陷盆地洼陷带岩性油气藏成藏动力学模式———以济阳坳陷为例[J].油气地质与采收率,2007,14(1):7-10,14.
[4]孙永壮.东营凹陷南斜坡地层油藏成藏规律[J].油气地质与采收率,2006,13(4):52-54.
[5]王永诗,石砥石.济阳坳陷新近系地层油藏特征———以太平油田为例[J].油气地质与采收率,2006,13(1):44-46.
[6]易士威.断陷盆地岩性地层油藏分布特征[J].石油学报,2005,26(1):38-41.
[7]郭元岭,张林晔,蒋有录,等.济阳坳陷地层油藏勘探实践分析[J].石油勘探与开发,2006,33(4):432-436.
[8]陈发景,张光亚,陈昭年.不整合分析及其在陆相盆地构造研究中的意义[J].现代地质,2004,18(3):269-275.
[9]隋风贵,赵乐强.济阳坳陷不整合结构类型及控藏作用[J].大地构造与成矿学,2006,30(2):161-167.
[10]张运东,薛红兵,朱如凯,等.国内外隐蔽油气藏勘探现状[J].中国石油勘探,2005,10(3):64-68.
[11]苏朝光,闫昭岷,张营革,等.应用井约束正演模型技术解决地层圈闭描述中的几个难题———以济阳坳陷为例[J].油气地质与采收率,2007,14(1):52-55.
[12]段云卿,覃天,张联盟,等.基于体属性的地震相干技术[J].石油地球物理勘探,2006,41(4):442-446.
[13]曹孟起,王九拴,邵林海.叠前弹性波阻抗反演技术及应用[J].石油地球物理勘探,2006,41(3):321-324.
[14]高君,云美厚,王晓红.针对薄互层储集特点的地震属性优化技术及应用效果[J].大庆石油地质与开发,2006,25(3):91-93.
[15]柏涛,徐志伟.波阻抗反演及其在隐蔽圈闭预测中的应用[J].石油实验地质,2004,26(1):63-67.
[16]杨飞,彭大钧,唐实秋,等.地震反演在潜山油藏预测中的应用———以黄骅坳陷东部为例[J].石油实验地质,2004,26(4):401-403,408.
[17]王玉学,汤达祯,龚建华,等.拟声波反演技术在储层预测中的应用———以吐哈盆地台北凹陷胜北地区白垩系为例[J].石油实验地质,2004,26(3):303-307.
[18]张进铎.地震解释技术现状及发展趋势[J].地球物理学进展,2006,21(2):578-587.
[2]隋风贵,赵乐强,林会喜,等.济阳坳陷第三系地层油藏形成机制与组合模式[J].油气地质与采收率,2005,12(6):1-5.
[3]卓勤功,向立宏,银燕,等.断陷盆地洼陷带岩性油气藏成藏动力学模式———以济阳坳陷为例[J].油气地质与采收率,2007,14(1):7-10,14.
[4]孙永壮.东营凹陷南斜坡地层油藏成藏规律[J].油气地质与采收率,2006,13(4):52-54.
[5]王永诗,石砥石.济阳坳陷新近系地层油藏特征———以太平油田为例[J].油气地质与采收率,2006,13(1):44-46.
[6]易士威.断陷盆地岩性地层油藏分布特征[J].石油学报,2005,26(1):38-41.
[7]郭元岭,张林晔,蒋有录,等.济阳坳陷地层油藏勘探实践分析[J].石油勘探与开发,2006,33(4):432-436.
[8]陈发景,张光亚,陈昭年.不整合分析及其在陆相盆地构造研究中的意义[J].现代地质,2004,18(3):269-275.
[9]隋风贵,赵乐强.济阳坳陷不整合结构类型及控藏作用[J].大地构造与成矿学,2006,30(2):161-167.
[10]张运东,薛红兵,朱如凯,等.国内外隐蔽油气藏勘探现状[J].中国石油勘探,2005,10(3):64-68.
[11]苏朝光,闫昭岷,张营革,等.应用井约束正演模型技术解决地层圈闭描述中的几个难题———以济阳坳陷为例[J].油气地质与采收率,2007,14(1):52-55.
[12]段云卿,覃天,张联盟,等.基于体属性的地震相干技术[J].石油地球物理勘探,2006,41(4):442-446.
[13]曹孟起,王九拴,邵林海.叠前弹性波阻抗反演技术及应用[J].石油地球物理勘探,2006,41(3):321-324.
[14]高君,云美厚,王晓红.针对薄互层储集特点的地震属性优化技术及应用效果[J].大庆石油地质与开发,2006,25(3):91-93.
[15]柏涛,徐志伟.波阻抗反演及其在隐蔽圈闭预测中的应用[J].石油实验地质,2004,26(1):63-67.
[16]杨飞,彭大钧,唐实秋,等.地震反演在潜山油藏预测中的应用———以黄骅坳陷东部为例[J].石油实验地质,2004,26(4):401-403,408.
[17]王玉学,汤达祯,龚建华,等.拟声波反演技术在储层预测中的应用———以吐哈盆地台北凹陷胜北地区白垩系为例[J].石油实验地质,2004,26(3):303-307.
[18]张进铎.地震解释技术现状及发展趋势[J].地球物理学进展,2006,21(2):578-587.
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