| 琼东南盆地崖南区少井岩性建模技术研究 |
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| 引用本文： | 刘爱群,陈殿远,欧振能.琼东南盆地崖南区少井岩性建模技术研究[J].地球物理学进展,2012,27(2):634-641. |
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| 作者姓名： | 刘爱群 陈殿远 欧振能 |
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| 作者单位： | 中海石油(中国)有限公司湛江分公司,湛江,524057 |
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| 基金项目： | 国家“十一五”重大专项项目 |
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| 摘 要： | 崖南区是琼东南盆地已证实的富生烃区,几口已钻井都已证实主要目的层段为高压地层,利用常规的压力预测方法预测新钻井的压力会出现较大的误差.若是从区域应力角度入手预测新钻井的压力误差会减小,其预测基础为岩性模型.对于已开发的油气田,利通常规的岩性建模方法可以建立较好的岩性模型;但是对于崖南区而言,由于地震资料品质不是很好,同时本区钻井较少,很难通过常规的建模方法建立岩性模型,所以本区研究重点是如何利用少井建立岩性模型.通过研究认为若完成崖南区的岩性建模必须改进建模流程,改进的岩性建模流程克服了常规岩性建模在崖南区存在的问题,主要有三方面的优点:1)不采用相模型约束岩性建模,解决了由于研究区相模型划相较粗很难约束岩性模型建立的问题;2)属性模型控制岩性模型的横向变化趋势,解决了几种常规属性与岩性间没有较好关系的问题;3)利用泥质含量结合岩性资料建立岩性体,得到的岩性模型比较接近实际情况.C井钻前完成岩性模型建立,利用C井井点位置提取岩性数据与本井钻后录井岩性数据对比,发现预测岩性与录井岩性的吻合程度很高,证明改进的岩性建模思路在崖南少井区可用.
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| 关 键 词： | 岩性模型 属性统计 泥质含量模型 建模流程 |
Seismic imaging of complex fault block key technology fields |
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| LIU Ai-qun
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CHEN Dian-yuan
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OU Zhen-neng.Seismic imaging of complex fault block key technology fields[J].Progress in Geophysics,2012,27(2):634-641. |
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| Authors: | LIU Ai-qun CHEN Dian-yuan OU Zhen-neng |
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| Institution: | (Zhanjiang Branch of CNOOC Ltd.,ZhanJiang,524057,China) |
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| Abstract: | Ya-nan is a proven Qiongdongnan Basin hydrocarbon-rich area,wells has been confirmed that the main purpose of drilling high-pressure layers formation,the use of conventional pressure prediction methods predict there will be new pressure on drilling large errors.If starting from the perspective of regional stress prediction error of the new drilling will reduce the pressure,and its prediction model based on the lithology.For oil and gas fields have been developed,conventional modeling method can create good rock lithology model;but Ya-nan area,since the seismic data quality is not very good,while less drilling in this area,through the construction of the conventional Methods lithology model difficult to achieve,so the focus is on how to create a less well lithology model.For the Ya-nan area modeling process must be changed,improved by studying the modeling process to overcome the conventional lithology modeling in the problems Ya-nan area,there are three main advantages: 1) Does not use face model is constrained to solve the face model study area designated as the face model constraint lithology modeling problem;2) Attribute model control lateral lithology trend model to address several general attributes and lithology between no good relations;3) The use of shale content data to establish lithology body,so get closer to the actual situation lithology model.C wells completed drilling lithology model,the use of extraction well point position C lithology data logging and lithology of the wells drilled after the comparison of the data found to predict lithology and logging lithology high degree of agreement,proof of improvement lithology modeling ideas in a small well field Ya-nan area is available. |
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| Keywords: | Lithology model Property statistics Shale content model Modeling process |
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