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注天然气吞吐提高采收率技术在轻质油藏中的应用
海洋石油
2018年 38卷 第4期
阅读：145
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Title
Application of Natural Gas Huff and Puff to Improve Oil Recovery Technology in Light Oil Reservoirs
单位
中海石油(中国)有限公司上海分公司, 上海 200335
Organization
Shanghai Branch of CNOOC Ltd, Shanghai 200335, China
摘要
随着注天然气提高采收率技术的不断完善，注气混相驱已成为提高采收率的重要技术手段。针对S油藏的地质及开发特点，在室内实验和流体相态拟合的基础上，提出近混相驱替方式，进行了注气混相驱提高采收率技术研究，设计出用于现场实施的推荐方案。为S油藏及同类轻质油藏实施天然气吞吐强化采油的可行性方案设计提供了一定的技术支持。
Abstract
With the continuous improvement of EOR technology by natural gas injection process, gas injection and miscible flooding has become significant technical means to EOR. In view of the geology and exploitation of S reservoir, based on the indoor experiment and fluid phase fitting,the method of displacing near miscible phase was put forward.By using the pseudo group phase equilibrium component simulation technique, the improvement of the recovery rate of natural gas huff and puff was optimized and the recommendation scheme used in the field was designed. It provides certain technical support for the feasibility design of enhanced natural gas stimulation in S reservoir and similar light oil reservoirs.
关键词：
天然气吞吐;
采收率;
近混相驱替;
优化设计;
Keywords:
natural gas huff and puff;
recovery;
near miscible displacement;
optimal design;
基金项目
国家科技重大专项"东海厚层非均质性大型气田有效开发关键技术"（编号：2016ZX05027-004）和中海油总公司科技项目"东海海域典型气田储量动用关键问题研究"（编号：YXKY-2017-ZY-13）联合资助。
DOI
https://doi.org/10.3969/j.issn.1008-2336.2018.04.032
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