| P-G交汇技术在SY地区中的应用 |
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| 引用本文： | 谢明干,胡伟光,张云海.P-G交汇技术在SY地区中的应用[J].物探化探计算技术,2011,33(4):376-380,346. |
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| 作者姓名： | 谢明干 胡伟光 张云海 |
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| 作者单位： | 1. 中国石油化工股份有限公司,西南石油局云南物探公司,云南,昆明,650233
2. 中国石油化工股份有限公司,勘探南方分公司研究院,四川,成都,610041 |
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| 摘 要： | SY地区须家河组二段（下砂）储层类型复杂,各井中均见到砂层,但该砂层储集体有的为高孔隙而有的则致密,在区域平面上表现出分布不均匀的特点。对该段储层预测方法及种类也有较多,但常规叠后反演很难对其进行区分和识别。利用叠前AVO技术,建立储层段的AVO正演模型并采用相应的工作流程,然后利用P-G交汇法对砂岩储层进行解释,发现含气储层与非含气储层的P-G交汇特征不同,砂岩储层含气后则具有交汇趋势线角度增大及远离背境趋势线的特征;而砂岩非储层则相反;其次储层段的P-G交汇点所分布的象限也不相同。通过这些特征,对全区现有钻遇该储层段的钻井进行预测,预测结果和钻井气测情况相吻合,取得了如期效果。
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| 关 键 词： | 须家河组二段 AVO技术 P-G交汇法 储层预测 背景趋势线 方位角 |
Application of P-G crossplot technique in SY area |
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| XIE Ming-gan,HU Wei-guang,ZHANG Yun-hai.Application of P-G crossplot technique in SY area[J].Computing Techniques For Geophysical and Geochemical Exploration,2011,33(4):376-380,346. |
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| Authors: | XIE Ming-gan HU Wei-guang ZHANG Yun-hai |
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| Institution: | XIE Ming-gan1,HU Wei-guang2,ZHANG Yun-hai2 (1. Yunnan Geophysical Company of Southwestern Bureau,SINOPEC,Kunming Yunnan 650233,China,2. Research Institute of Exploration Southern Division Company,Chengdu Sichuan 610041,China) |
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| Abstract: | The member 2 of the Xujiahe Formation in SY area has various types of reservoirs and sand beds are common in every well. Because some sand beds are high porosity and the others are tight, they have shown characteristics of uneven distribution in regional plane, therefore it is hard to predict these sand reservoirs by using conventional poststack inversion. A new predicting method has been presented in this paper. It firstly sets up AVO forward models of these sands, then, interpret sand reservoirs by using ... |
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| Keywords: | the member 2 of the Xujiahe formation AVO technology P-G crossplot reservoir predication background trend-line azimuth angle |
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