| 应用CT研究水平井置胶成坝深部液流转向机理 |
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| 引用本文： | 吕静,刘玉章,高建,王家禄,李宜坤. 应用CT研究水平井置胶成坝深部液流转向机理[J]. 石油勘探与开发, 2011, 38(6) |
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| 作者姓名： | 吕静 刘玉章 高建 王家禄 李宜坤 |
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| 作者单位： | 中国石油勘探开发研究院 |
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| 基金项目： | 中国石油勘探开发研究院石油科技中青年创新基金(2009-B-10-07) |
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| 摘 要： | 根据水平井置胶成坝深部液流转向技术思路,采用室内水驱油实验结合计算机断层扫描(CT)成像技术,研究水平井置胶成坝提高采收率机理。人工胶结非均质模型表面用环氧树脂浇铸,对模型置胶成坝前后水驱油过程进行CT动态扫描,观察胶坝分布特征,跟踪非均质模型内部油水分布、水驱流线改变、流体饱和度分布及其动态变化。结果表明:对于正韵律油层,应用水平井置胶成坝,能够有效封堵高渗透层位深部窜流通道,使注入水转向驱替,启动低渗透层位剩余油。置胶成坝后,水驱采收率提高16.7%,含水上升速度减慢。水平井置胶成坝技术突破了堵剂深部放置的技术瓶颈,实现油藏深部液流转向,有效扩大了水驱波及体积,是正韵律厚油层高含水期一项有前景的控水挖潜技术。
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| 关 键 词： | CT扫描 胶坝 深部液流转向 水平井 正韵律 |
Mechanism research of in-depth fluid diversion by gel dam place with horizontal well using X-ray CT |
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| Lüi Jing,Liu Yuzhang,Gao Jian,Wang Jialu,Li Yikun. Mechanism research of in-depth fluid diversion by gel dam place with horizontal well using X-ray CT[J]. Petroleum Exploration and Development, 2011, 38(6) |
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| Authors: | Lüi Jing Liu Yuzhang Gao Jian Wang Jialu Li Yikun |
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| Affiliation: | Lü Jing,Liu Yuzhang,Gao Jian,Wang Jialu,Li Yikun(PetroChina Research Institute of Petroleum Exploration & Development,Beijing 100083,China) |
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| Abstract: | According to the concept of in-depth fluid diversion by gel dam place with horizontal well,its EOR mechanism is studied by means of laboratory water flooding experiment combined with X-ray computer tomography(CT) technique.In the experiment,the artificial cementing heterogeneous model is casted with epoxy resin on surface,and the flooding processes before and after the gel dam formed are scanned dynamically by X-ray CT.Through observing the distribution feature of gel dam,tracking the oil and water distribu... |
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| Keywords: | X-ray CT scanning gel dam in-depth fluid diversion horizontal well positive rhythm |
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