低阻油层识别技术在老油区勘探目标评价中的应用
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摘要
港中开发区勘探程度高,沙三1油组低阻油层广泛发育,针对低阻油层的成因机理及测井响应特征,阐述了老区测井低阻油层识别方法。测井低阻油层评价指出,研究区稳定分布有6组目的层,测井低阻油层评价基础上,综合应用测井、地质、地震资料相互结合以单砂组为单元,进行测井信息精细等时对比、测井准确层位标定、测井精细落实构造的测井地质评价工作。通过老井复查挖潜获得较好的试油效果,并提出有利构造3个,成功钻探3口井,上报探明石油地质储量1300万吨。
With a high degree of development in the central part of Dagang oilfield,low resistivity reservoirs develop widely in Es31 oil group.The paper formulates the identification method of low resistivity reservoirs with well logging according to the generation mechanism and response characteristics.Low-resistivity reservoir logging evaluation indicates that 6 groups of target zones distribute in the research area.On the basis of low resistivity reservoir logging evaluation,taking single sand group as a unit,well logging,geological and seismic data are combined to conduct fine isochronic comparison,accurate layer calibration,structure confirmation and geological evaluation.Through reinspection of the old wells,preferable oil testing result was gained.3 favorable structures are proposed and 3 wells were drilled successfully.The reported proved oil reserves is 13000000 ton.
With a high degree of development in the central part of Dagang oilfield,low resistivity reservoirs develop widely in Es31 oil group.The paper formulates the identification method of low resistivity reservoirs with well logging according to the generation mechanism and response characteristics.Low-resistivity reservoir logging evaluation indicates that 6 groups of target zones distribute in the research area.On the basis of low resistivity reservoir logging evaluation,taking single sand group as a unit,well logging,geological and seismic data are combined to conduct fine isochronic comparison,accurate layer calibration,structure confirmation and geological evaluation.Through reinspection of the old wells,preferable oil testing result was gained.3 favorable structures are proposed and 3 wells were drilled successfully.The reported proved oil reserves is 13000000 ton.
引文
[1]周海民,断陷盆地精细勘探—渤海湾盆地南堡凹陷精细勘探实践与认识[M],北京科学出版社,2000年.
[2]丁贵明,测井地质学及其在勘探中的应用[J]测井技术,1996,20(4):235-238.
[3]张龙海、周灿灿、刘国强等,不同类型低孔低渗储集层的成因、物性差异及测井评价对策[J],石油勘探与开发,2007,34(06):702-709.
[4]宋效文、韩国猛、胡瑞波等,马东地区低阻油层成因分析,[J],国外测井技术,2008(,168):31-33.
[5]周灿灿、程相志、彭银辉等,渤海湾地区低电阻油气层测井技术与解释方法[M],北京石油工业出版社,2000,245-263.
[6]欧阳健、刘德来等,渤海湾地区低阻油气层测井术与解释研究概述,[M],2000,2-6.
[2]丁贵明,测井地质学及其在勘探中的应用[J]测井技术,1996,20(4):235-238.
[3]张龙海、周灿灿、刘国强等,不同类型低孔低渗储集层的成因、物性差异及测井评价对策[J],石油勘探与开发,2007,34(06):702-709.
[4]宋效文、韩国猛、胡瑞波等,马东地区低阻油层成因分析,[J],国外测井技术,2008(,168):31-33.
[5]周灿灿、程相志、彭银辉等,渤海湾地区低电阻油气层测井技术与解释方法[M],北京石油工业出版社,2000,245-263.
[6]欧阳健、刘德来等,渤海湾地区低阻油气层测井术与解释研究概述,[M],2000,2-6.
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