乳化柴油分流液的酸化性能实验研究
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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,通过室内实验研究确定乳化柴油的配方。考察不同油水比下乳化柴油的黏度、粒径分布、流变性,根据实验结果优选乳化柴油的油水比。通过单/并联岩芯实验,观察乳化柴油对高渗岩心的封堵性,封堵后渗透率下降83%以上。将乳化柴油作为酸化分流液并应用于现场酸化作业中,效果显著,日增油量有所提升,含水率保持不变。
In order to resolve the sharp rise in water cut during the procedure of acidizing for Wenchang oilfield,the emulsified diesel diverting fluid is developed based on a numerous of experiments. Viscosity,particle size distribution and rheological property of emulsified diesel with different oil/water ratio are studied,the oil-water ratio of emulsified diesel is optimized based on the experimental results. The results of the displacement experiment with one-core and parallel-cores show that diverting efficiency of the emulsified diesel is over 83%. When emulsified diesel is used as acidizing diverting liquid and applied to field acidizing operation,the diverting ability is efficient,not only in improving the production,but also in stabilizing the water cut.
In order to resolve the sharp rise in water cut during the procedure of acidizing for Wenchang oilfield,the emulsified diesel diverting fluid is developed based on a numerous of experiments. Viscosity,particle size distribution and rheological property of emulsified diesel with different oil/water ratio are studied,the oil-water ratio of emulsified diesel is optimized based on the experimental results. The results of the displacement experiment with one-core and parallel-cores show that diverting efficiency of the emulsified diesel is over 83%. When emulsified diesel is used as acidizing diverting liquid and applied to field acidizing operation,the diverting ability is efficient,not only in improving the production,but also in stabilizing the water cut.
引文
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[6]冯浦涌,王宗圣,崔波,等.碳酸盐岩油藏乳状液暂堵及暂堵后酸化实验研究[J].科学技术与工程,2015,15(14):157-162.
[7]高建崇,张岭,冯浦涌,等.疏松砂岩油藏乳化柴油体系封堵分流实验研究[J].石油化工高等学校学报,2017,30(1):36-41.
[8]关富佳,车延秀,贺会群,等.双岩心分流酸化效果评价装置的应用[J].石油机械,2006,34(4):82-83.
[9]李黎明,陈冀嵋,刘怡衫,等.文昌13-1油田多氢酸酸化技术研究[J].吐哈油气,2009,14(3):243-246.
[2]刘平礼,高贵民,郑云川,等.砂岩黏弹性表面活性剂分流剂分流酸化技术[J].天然气工业,2006,26(10):117
[3]李年银,刘平礼,赵立强,等.水平井酸化过程中的布酸技术[J].天然气工艺,2008,28(2):104-107.
[4]郭富凤,赵立强,刘平礼,等.水平井酸化工艺技术综述[J].断块油气田,2008,15(1):117-120.
[5]吴天江,郑力军,张涛,等.一种泡沫酸配方及其分流酸化性能评价[J].西安石油大学学报(自然科学版),2013,28(1):80-83.
[6]冯浦涌,王宗圣,崔波,等.碳酸盐岩油藏乳状液暂堵及暂堵后酸化实验研究[J].科学技术与工程,2015,15(14):157-162.
[7]高建崇,张岭,冯浦涌,等.疏松砂岩油藏乳化柴油体系封堵分流实验研究[J].石油化工高等学校学报,2017,30(1):36-41.
[8]关富佳,车延秀,贺会群,等.双岩心分流酸化效果评价装置的应用[J].石油机械,2006,34(4):82-83.
[9]李黎明,陈冀嵋,刘怡衫,等.文昌13-1油田多氢酸酸化技术研究[J].吐哈油气,2009,14(3):243-246.