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利用CO_2提高原油采收率是EOR中发展较快的一项工艺技术,它能达到比水驱更好的驱油效果.在实施CO_2单井吞吐及CO_2驱时,注入液态CO_2与注入气态CO_2相比具有工艺简单、成本低等优点.工艺实施中,CO_2的注入量是影响增油效果及经济效益的一个敏感性因素.而准确计量CO_2的注入量,尤其是驱油试验中各个不同周期的注入量,达到油藏工程设计要求,获得最佳增油效果,是工艺中至关重要的环节,同时也是CO_2吞吐及CO_2驱工艺后评估中解决经济评价的手段.
The use of CO_2 to enhance oil recovery is one of the fastest growing EOR technologies, which can achieve a better displacement effect than water flooding.When CO_2 single-well stimulation and CO_2 flooding were applied, liquid CO_2 and gaseous CO_2 Compared with a simple process, low cost, etc .. In the process of implementation, CO 2 injection volume is a sensitive factor affecting oil production and economic benefits.And accurate measurement of CO 2 injection, especially in the oil displacement test in different periods Of the injection volume, to meet the reservoir engineering design requirements, to obtain the best oil enhancement effect is a crucial part of the process, but also CO_2 throughput and CO_2 flooding after the assessment of the economic evaluation of the means to solve.