文章摘要
非均质储层乳化柴油分流液研究与应用
Study and Application of Emulsified Diesel Diverting Liquid in Heterogeneous Reservoir
投稿时间:2018-07-09  修订日期:2018-07-09
DOI:
中文关键词: 非均质储层、乳化柴油、分流液、分流酸化、封堵能力
英文关键词: Heterogeneous reservoir  Emulsified diesel  Diverting liquid  Diverting acidification  plugging ability.
基金项目:国家科技重大专项“南海西部海域低渗油藏勘探开发关键技术”(2016ZX05024-006)。
作者单位E-mail
陈霄 中海石油中国有限公司湛江分公司 cxiao007@163.com 
吴广 中海油田服务股份有限公司 wuguang2@cosl.com.cn 
周泓宇 中海石油中国有限公司湛江分公司 zhouhy19@cnooc.com.cn 
龚云蕾 中海石油中国有限公司湛江分公司 gongyl3@cnooc.com.cn 
吴绍伟 中海石油中国有限公司湛江分公司 wushw1@cnooc.com.cn 
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中文摘要:
      针对文昌油田群高含水油井笼统酸化后含水率突升的问题,在对以往笼统酸化所用酸液性能分析的基础上,通过大量的室内实验研究,确定了乳化柴油的配方为10%新型乳化剂+90%柴油(质量比),并考察了不同油水比下乳化柴油的粘度、粒径分布、流变性,根据实验结果优选出了30%油水比的乳化柴油;单/并联岩芯实验结果表明乳化柴油能够对高渗岩心进行封堵,封堵后渗透率下降程度达到了83%以上。最终形成了使用乳化柴油作为酸化分流液的分流酸化技术并应用于现场,措施后取得了日增油50方/天,同时含水率保持不变的显著效果。
英文摘要:
      In order to resolve the sharp rise in water cut during the procedure of acidizing for Wen Chang oilfield, based on the systematic analysis of used acid fluids and a numerous of experiments, the emulsified diesel diverting fluid was developed(10% novel emugator+90% diesel). And through the evaluation of viscosity, particle size distribution and rheological property, the final diverting fluid was defined (the oil/water ratio is 3:7). The results of the displacement experiment with one-core and parallel-cores show that diverting efficiency of the emulsified diesel is over 83%. The diverting ability of the emulsified diverting fluid is efficient which has increased 50m3/d for X well of Wen Chang oilfield, not only improved the production, but also stabilized the water cut .
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