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修正等时试井在西湖凹陷低渗储层中的应用 被引量:2

Application of Modified Isochronal Testing in the Low Permeability Reservoirs of Xihu Sag
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摘要 在低渗气藏中,由于储层渗透性差,多油嘴产能测试时较难获得稳定流,利用常规的回压试井法较难获得准确无阻流量。西湖凹陷低渗储层首次应用修正等时试井法。利用二项式方程,获得了较准确的无阻流量,求取了地层压力、有效渗透率、表皮系数等地层参数,为后期的生产提供了可靠的指导。 In low permeability reservoirs,due to the poor permeability of reservoir,it is difficult to obtain steady flow in capacity test with multichokes,and it is hard to get accurate open flow using the conventional method of backpressure test. Modified isochronal testing method has been applied in the low permeability reservoir in Xihu Sag for the first time. By using the binomial equation,the open flow is obtained accurately,and reservoir parameters of formation pressure,effective permeability,skin factor and others have been calculated to provide a reliable guidance for later production.
作者 朱文娟
出处 《油气井测试》 2017年第5期28-30,共3页 Well Testing
关键词 修正等时试井 压力恢复 产能 低渗储层 测试 modified isochronal test buildup productivity low permeability reservoir test
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