地层格架约束变速成图在永1砂砾岩油藏中的应用
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摘要
永1砂砾岩体构造变化剧烈,岩性差异明显,速度场在各个方向都存在很大的变化,需要利用变速成图来描述地层的真实构造形态。在沉积认识的指导下,利用地震相特征将砂砾岩体划分为三个大期次,根据这三个期次界面建立地层格架,利用叠加速度场与井上的时深关系建立速度场。通过井上地质分层的验证,利用这种方法建立的速度场能够准确有效的对砂砾岩界面进行变速成图,精确描述地质体的构造特征。
The structure of Yong 1 glutenite reservoir change acutely, the lithology have obviously diversity, the velocity fi eld vary in different directions, in order to describe the true structure of stratum, the varying velocity mapping technique should be applied. In the guide of sedimentary concept, the glutenite reservoir was divided into three major circles, the formation structure was formed on the basis of these three circles, and the velocity model was built with time-depth relationship between the seismic stacking velocity and in wells. Verifi ed by the geology lamination in wells, the velocity model built by this method can achieve the varying velocity mapping effi ciently and describe the structure characters accurately.
The structure of Yong 1 glutenite reservoir change acutely, the lithology have obviously diversity, the velocity fi eld vary in different directions, in order to describe the true structure of stratum, the varying velocity mapping technique should be applied. In the guide of sedimentary concept, the glutenite reservoir was divided into three major circles, the formation structure was formed on the basis of these three circles, and the velocity model was built with time-depth relationship between the seismic stacking velocity and in wells. Verifi ed by the geology lamination in wells, the velocity model built by this method can achieve the varying velocity mapping effi ciently and describe the structure characters accurately.
引文
[1]袁静,袁炳存.永安镇地区永1砂砾岩体储层微观特征[J].石油大学学报(自然科学版).1999,23(1):13-16.
[2]邓光校,顾汉明,黄志霞.模型层析法变速成图技术在江汉盆地拖谢地区构造解释中的应用[J].工程地球物理学报.2007,4(4):337-340.
[3]孙均.山前复杂构造带变速成图速度研究[J].工程地球物理学报.2013,10(6):880-884.
[4]陆基孟,王永刚.地震勘探原理[M].中国石油大学出版社.2009:139-144.
[5]王永刚,杨国权.砂砾岩油藏的地球物理特征[J].石油大学学报(自然科学版).2001,25(5):16-20.
[6]杨国权,陈景达.临清坳陷下第三系地震地层学研究[J].石油大学学报(自然科学版).1994,18(4):8-14.
[2]邓光校,顾汉明,黄志霞.模型层析法变速成图技术在江汉盆地拖谢地区构造解释中的应用[J].工程地球物理学报.2007,4(4):337-340.
[3]孙均.山前复杂构造带变速成图速度研究[J].工程地球物理学报.2013,10(6):880-884.
[4]陆基孟,王永刚.地震勘探原理[M].中国石油大学出版社.2009:139-144.
[5]王永刚,杨国权.砂砾岩油藏的地球物理特征[J].石油大学学报(自然科学版).2001,25(5):16-20.
[6]杨国权,陈景达.临清坳陷下第三系地震地层学研究[J].石油大学学报(自然科学版).1994,18(4):8-14.
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