苏北盆地高邮凹陷邵伯西地区戴南组隐蔽油藏研究
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摘要
随着勘探程度的不断加深,高邮凹陷构造圈闭越来越少,勘探难度越来越大,因此,寻找岩性圈闭成为勘探工作的重点,高邮凹陷汉留断层下降盘戴南组(E2d)是实施隐蔽油藏勘探的有利区域。从物探角度出发,对邵伯西三维工区进行了精细层位标定和解释,利用Jason软件对汉留断层下降盘B2d段的岩性圈闭进行了研究,识别出了各个砂体的厚度,预测了相应砂体的孔隙度,并应用Landmark软件的属性提取、相干体切片以及三维可视化等多种技术,从平面和空间上对预测结果加以印证,最终落实了井位。
Structural traps are decreasing and difficulties in exploration are getting more challenging in Gaoyou sag as the exploration goes in depth. Focus of exploration has been turned to seek lithological reservoirs. The Dainan Formation (E2d) at the downthrown side of fault Hanliu is deemed as a potential subtle reservoir in Gaoyou sag. However, the exploration of lithological reservoirs is in its infancy, no mature theory and experience could be used. In this study, we performed fine horizon calibration and interpretation on the 3D data from the survey area of western Shaobo. To determine the thickness and porosity of sands, software package Jason was adopted in the study of lithological trap at the downthrown side of the fault Hanliu. The results were verified with techniques like attribute analysis, coherency cube, and 3D visualization from Landmark's packages. Candidate well locations are recommended.
Structural traps are decreasing and difficulties in exploration are getting more challenging in Gaoyou sag as the exploration goes in depth. Focus of exploration has been turned to seek lithological reservoirs. The Dainan Formation (E2d) at the downthrown side of fault Hanliu is deemed as a potential subtle reservoir in Gaoyou sag. However, the exploration of lithological reservoirs is in its infancy, no mature theory and experience could be used. In this study, we performed fine horizon calibration and interpretation on the 3D data from the survey area of western Shaobo. To determine the thickness and porosity of sands, software package Jason was adopted in the study of lithological trap at the downthrown side of the fault Hanliu. The results were verified with techniques like attribute analysis, coherency cube, and 3D visualization from Landmark's packages. Candidate well locations are recommended.
引文
1周玉冰,董桥梁,张玉斌.多参数多信息预测中岩性特征及层位标定技术[J].石油地球物理勘探,2003,38(1) :53～57
2潘元林,孔凡仙,杨申镳.中国隐蔽油气藏[M].北京:地质出版社,1998． 46～55
3张卫红.VSP和声波测井资料在岩性解释中的联合应用[J].石油物探,2002,41(2) :149～153
4于建国,路慎强,王金铎.测井约束反演技术在史南浊积砂体描述中的应用[J].石油物探,2001,40(2) :102～107
5王永刚,刘礼农.利用相干数据体检测断层与特殊岩性体[J].石油大学学报,2000,24(1) :69～72
2潘元林,孔凡仙,杨申镳.中国隐蔽油气藏[M].北京:地质出版社,1998． 46～55
3张卫红.VSP和声波测井资料在岩性解释中的联合应用[J].石油物探,2002,41(2) :149～153
4于建国,路慎强,王金铎.测井约束反演技术在史南浊积砂体描述中的应用[J].石油物探,2001,40(2) :102～107
5王永刚,刘礼农.利用相干数据体检测断层与特殊岩性体[J].石油大学学报,2000,24(1) :69～72
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