| 准噶尔ＳＷＤ地区含油气砂体识别方法 |
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| 引用本文： | 陈习峰,陈佳良,张齐鸣,陈胜红.准噶尔ＳＷＤ地区含油气砂体识别方法[J].勘探地球物理进展,2004,27(4):251-255. |
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| 作者姓名： | 陈习峰 陈佳良 张齐鸣 陈胜红 |
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| 作者单位： | 江苏石油勘探局物探技术研究院,江苏,南京,210046 |
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| 摘 要： | 在寻找准噶尔SWD地区隐蔽砂体过程中，波阻抗资料已成为三维资料解释的主要依据。利用流体置换方法标定SWD地区目的层AVO及其相关属性的含油敏感度；用shuey近似公式反演得到纵波阻抗和横波阻抗；然后根据属性优选结果提取波松比和流体阻抗数据体，发现最大值指示泥岩，中间值指示饱含水砂岩，最小值指示饱含油气砂岩。这一结果和试油结果相吻合，并利用它们圈定了可能的含油气砂体发育区。
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| 关 键 词： | AVO属性 叠前反演 流体置换 砂体识别 |
| 文章编号： | 1671-8585(2004)04-0251-05 |
| 收稿时间： | 2004-1-8 |
| 修稿时间： | 2004年1月8日 |
Identification of oil and gas bearing sand in SWD area in Junggar Basin |
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| Chen Xifeng,Chen Jialiang,Zhang Qiming,Chen Shenghong.Identification of oil and gas bearing sand in SWD area in Junggar Basin[J].Progress in Exploration Geophysics,2004,27(4):251-255. |
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| Authors: | Chen Xifeng Chen Jialiang Zhang Qiming Chen Shenghong |
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| Affiliation: | (Research Institute of Geophysical Technology,Jiangsu Bureau of Petroleum Exploration, Nanjing 210046,China) |
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| Abstract: | Inversed P-wave impedance data can be used to identify concealed sand bodies. This analysis is based on poststack seismic data, which limits its ability in distinguishing sand from shale, especially oil & gas sands. If this analysis is implemented on prestack impedance data, the ability of identification of oil & gas sand will be improved. In SWD area in Junggar Basin, we determined the sensitivity of AVO attributes to oil & gas sands by u-sing fluid substitution. The results were further used to delineate the distribution of oil & gas sands. |
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| Keywords: | AVO attribute prestack inversion fluid substitution sand identification |
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