| 利用岩性阻抗识别砂岩、泥岩以及砂体叠置——以北部湾盆地涠洲A油田为例 |
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| 引用本文： | 彭军,周家雄,隋波,李海鹏,唐蓿.利用岩性阻抗识别砂岩、泥岩以及砂体叠置——以北部湾盆地涠洲A油田为例[J].海相油气地质,2017,22(1). |
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| 作者姓名： | 彭军 周家雄 隋波 李海鹏 唐蓿 |
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| 作者单位： | 中海石油(中国)有限公司湛江分公司 |
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| 基金项目： | 中国海洋石油总公司"十二五"重大专项"南海西部海域典型低孔低渗油气藏勘探开发关键技术研究及实践" |
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| 摘 要： | 针对涠洲A油田储层平面非均质性强、存在砂体叠置,以及单纯的波阻抗反演不能十分有效地识别砂泥岩和叠置砂体,提出了将纵波阻抗与横波阻抗通过一定的数学变换获得岩性阻抗的方法,证实了该岩性阻抗反演结果与实钻井吻合程度高,有效区分了砂岩和泥岩,并成功地预测了涠洲A油田砂体叠置的关系。
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| 关 键 词： | 波阻抗反演 岩性阻抗 砂体预测 储层预测 涠西南凹陷 北部湾盆地 |
Identification of Superimposed Sandbody by Using Lithology Impedance in Weizhou-A Oilfield,Beibuwan Basin |
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| Peng Jun,Zhou Jiaxiong,Sui Bo,Li Haipeng,Tang Xu.Identification of Superimposed Sandbody by Using Lithology Impedance in Weizhou-A Oilfield,Beibuwan Basin[J].Marine Origin Petroleum Geology,2017,22(1). |
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| Authors: | Peng Jun Zhou Jiaxiong Sui Bo Li Haipeng Tang Xu |
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| Abstract: | In view of the plane heterogeneity of reservoirs and the superimposition of sand body in Weizhou-A Oilfield, Beibuwan Basin, the well data analysis shows that the simple impedance inversion can' t identify sand-mudstone and superimposed sandbody effectively. The lithology impedance was presented in this study by using mathematical transformation method of the P-wave impedance and S-wave impedance. It is proved that the results of lithology impedance are in high coincidence with drilling. The sandstone and mudstone are identified effectively, and the superimposed relationship of sandbody was predicted successfully by using lithology impedance. |
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| Keywords: | Impedance inversion Lithology impedance Sandbody prediction Reservoir prediction Southwest Weizhou Depression Beibuwan Basin |
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