| 油田开发中后期岩相单元的细分研究 |
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| 引用本文： | 撒利明,王天琦,师永民,鲁明春,杜文博.油田开发中后期岩相单元的细分研究[J].沉积学报,2002,20(4):595-599. |
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| 作者姓名： | 撒利明 王天琦 师永民 鲁明春 杜文博 |
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| 作者单位： | 1 中国科学院长沙大地构造研究所,长沙,410013; |
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| 基金项目： | CNPC物探重点实验室基金，CNPC中青年创新基金，，，， |
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| 摘 要： | 油田开发中后期建立在原小层对比和沉积微相基础上的储层地质模型已不能适应调整挖潜和剩余油分布研究的要求,需要在小层划分的基础上,进一步细分到岩相单元。本文以大庆长垣南部葡北油田葡I组油层为例提出岩相单元的概念,通过现代沉积研究论证岩相单元细分的可行性,结合密井网测井曲线分析旋回性、隔夹层分布的稳定性及目前经济技术和采油工艺等,探讨细分单元的基本原则。最后提出岩相单元细分的基本方法。
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| 关 键 词： | 油田开发 岩相单元 剩余油 |
| 文章编号： | 1000-0550(2002)04-0595-05 |
| 收稿时间： | 2002-04-26 |
| 修稿时间： | 2002年4月26日 |
Subdivision of Lithofacies Units during Middle-late Stage of Oil Development |
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| SA Li ming , WANG Tian qi SHI Yong min , LU Ming chun DU Wen bo.Subdivision of Lithofacies Units during Middle-late Stage of Oil Development[J].Acta Sedimentologica Sinica,2002,20(4):595-599. |
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| Authors: | SA Li ming WANG Tian qi SHI Yong min LU Ming chun DU Wen bo |
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| Institution: | 1 Changsha Institute of Geotectonics, Chinese Academy of Sciences, Changsha 410013;2 Chengdu University of Technology,Chengdu 610059;3 China University of Geosciences, Beijing 100083;4 Northwest Branch of Research Institute of Petroleum Exploration and Development,CNPC,Lanzhou 730020;5 Underground Working Company of Qinghai Petroleum Administration Bureau,Dunhuang,Gansu 735200;6 Yumen Oil Field,Yumen,Gansu 735200 |
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| Abstract: | During the middle or late stage of oil field development, reservoir geological model based on former minilayer division and sedimentary microfacies couldnot meet the demand of regulation tap the latent power and distribution of remaining oil. This demands minilayer division and further finely divides lithofacies. Lithofacies unit is bed or a single bed, formed during transportation and deposition of sediment, which formed under basically stable medium. It represents the smallest lithology unit composed of sediment with identical component. Bedded plane exists between beds, which represents intermittent plane of transient nondeposition or abrupt sedimentation. Lithofacies unit provides sedimentary foundation and new research way for further subdivision and reservoir anisotropy from static view. This paper proves feasibility of lithofacies unit subdivision by studying recent deposits and discusses the principle of finely divided unit, combining close spaced well to analyze cyclicity, stability of interbed, and propose economic technology and oil producing technology. At last, the paper provides basical method for finely dividing lithofacies unit. |
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| Keywords: | oil producing development lithofacies unit remaining oil |
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