低液量水平井存储式产液剖面测井技术与应用
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摘要
产液剖面测试是了解生产层段产液状况的重要手段,是油田开发的一项主要工作。针对低渗透油藏水平井单井产液低,采用常规的产液剖面测试技术手段测试的分段产液及含水准确性差的难点,提出了一种采用"油管输送+存储式采集"方式,利用水平井井下浮子流量计实现流量测试和井下电动取样器进行含水测试的方法,研制了关键工具,形成了低液量水平井存储式产液剖面测井技术。室内实验及现场试验表明,测试技术能够实现分段产液和含水率的准确监测,测试成本降低了80%。该技术达到了准确监测低液量水平井产液剖面的目的,为定性定量分析解释低液量水平井产液分布状况提供了技术手段。
The liquid production profile logging is an important measure to understand the liquid production status of the production interval,which is a major job of oil field development. For the low liquid production horizontal wells in low permeability reservoir,the conventional production profile logging usually results not accurate liquid output data and water content data. A method combining tubing conveying and memory type acquisition is proposed to realize flow rate and water cut test by using horizontal well down-hole float flow meter and underground electric sampler. The key tools and a set of technology are developed. The results of laboratory experiments and field tests have proved its test accuracy and the test cost is reduced by4/5. It provides a technical means for the qualitative and quantitative analysis of the liquid production distribution in the low liquid output horizontal wells.
The liquid production profile logging is an important measure to understand the liquid production status of the production interval,which is a major job of oil field development. For the low liquid production horizontal wells in low permeability reservoir,the conventional production profile logging usually results not accurate liquid output data and water content data. A method combining tubing conveying and memory type acquisition is proposed to realize flow rate and water cut test by using horizontal well down-hole float flow meter and underground electric sampler. The key tools and a set of technology are developed. The results of laboratory experiments and field tests have proved its test accuracy and the test cost is reduced by4/5. It provides a technical means for the qualitative and quantitative analysis of the liquid production distribution in the low liquid output horizontal wells.
引文
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[2]张学文,方宏长.低渗透率油藏压裂水平井产能影响因素[J].石油学报,1999,20(4):51-55.
[3]聂飞朋,石琼,郭林园.水平井找水技术现状及发展趋势[J].油气井测试,2011,20(3):32-34.
[4]耿师江,曾卫林.非均质油藏中高含水期稳油控水措施及效果[J].大庆石油地质与开发,2001,20(3):40-41.
[5]安永生,吕亿明,鲁玲,等.特低渗透油藏压裂水平井流入动态研究[J].特种油气藏,2012,19(3):90-92.
[6]郑希科.水平井油水两相管流流量和含水率测量方法实验研究[J].测井技术,2010,34(4):323-326.
[7]杨梅,吴锡令.水平井油水两相流型测量实验[J].测井技术,2008,32(5):398-402.