港东油田一区河流相储集层滚动勘探方法
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摘要
根据大港探区港东油田的实际情况,以储集层的沉积相研究为基础,结合对地震、地质、钻井等资料的研究,分4个层次进行港东一区河流相储集层的滚动勘探:①根据区域精细地层对比和沉积相研究,查明储集层分布;②充分利用地震信息,预测砂岩发育区,指出滚动勘探目标;③应用神经网络储集层预测方法,利用地震信息在砂岩发育区内确定油气富集带,部署滚动勘探井;④根据地震和测井资料,确定油气富集带内单砂体的边界,定量计算单井单砂体厚度。根据预测结果部署的7口滚动勘探井都取得了良好效果。图3参9
According to the current state of Gangdong Oilfield, a set of means for progressive exploration play on the first block of Gangdong are proposed, that is based on sedimentary facies research and integrated information of seismic, geology, logging, drilling, including: ① to identify the distribution of reservoir according to precise stratigraphic correlation and sedimentary facies research; ②to proposal the targets for progressive exploration based on the predicts of sandstone developed zones according to the seismic information;③to decide the exploration wells by using the seismic data and neural network; ④ to determine and quantitatively calculate the single sand body’ boundary according to the seismic and log information. The excellent results have been got in 7 wells based on the plays that are made according to the predicting.
According to the current state of Gangdong Oilfield, a set of means for progressive exploration play on the first block of Gangdong are proposed, that is based on sedimentary facies research and integrated information of seismic, geology, logging, drilling, including: ① to identify the distribution of reservoir according to precise stratigraphic correlation and sedimentary facies research; ②to proposal the targets for progressive exploration based on the predicts of sandstone developed zones according to the seismic information;③to decide the exploration wells by using the seismic data and neural network; ④ to determine and quantitatively calculate the single sand body’ boundary according to the seismic and log information. The excellent results have been got in 7 wells based on the plays that are made according to the predicting.
引文
[1] 大港油田石油地质志编辑委员会.中国石油地质志,卷四,大港油田[M].北京:石油工业出版社,1991.300 306.
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[2] 裘亦楠,张志松,唐美芳,等.河流砂体储层的小层对比问题[J].石油勘探与开发,1987,14(2):46 52,9.
[3] 裘亦楠.储层沉积学研究工作流程[J].石油勘探与开发,1990,17(1):85 90.
[4] 徐怀大,等.地震地层学解释基础[M].武汉:中国地质大学出版社,1990.
[5] 杜世通.油藏地球物理异常目标的预测[R].北京:石油大学,1990.
[6] 王西文,刘全新,苏明军,等.滚动勘探开发阶段精细储集层预测技术[J].石油勘探与开发,2002,29(6):5153,71.
[7] 吴崇筠,等.中国含油气盆地沉积体系[M].北京:石油工业出版社,1992.
[8] 印新耀,等.神经网络在储层预测中的应用[J].石油大学学报,1994,16(5):2026.
[9] 印新耀,等.神经网络在CB油田储层预测和储层厚度计算中的应用[J].石油大学学报,1998,22(2):1720.
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