地面高效除油体系的开发与应用
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摘要
针对油井试油压裂返排、抽汲等过程中,返排出的含油泥砂和沉砂罐、井口设备附着原油难以有效清理等问题,在分析原油组分的基础上,以表面活性剂、溶剂及碱液类为主,开发出一种高效除油体系,该体系对支撑剂表面原油清除率大于96%,对大罐等表面原油清除率大于92%,现场采用高压清洗机+高效除油剂清除工艺,实验4井组16口井,清洗沉砂罐、大罐等20余具,清洗支撑剂、油泥等6 m~3,为试油现场清洁化提供有力支撑。
Based on the analysis of the crude oil components, the surface active agent, solvent and alkaline solution are the main problems in the process of fracturing and pumping and so on. A highly efficient oil removal system has been developed. The removal rate of crude oil on the surface of the support agent is more than 96 %, and that of the surface oil such as large tanks is more than 92 %. High-pressure cleaning machines and high-efficiency oil removal agent removal processes have been adopted on the spot in 16 wells. They included cleaning sand tanks, large tanks and other more than 20, cleaning support, oil mud and other 6 parties, such as well mouth, throttle sink and other cleaning effect is good, can provided strong support for the cleaner oil test site.
Based on the analysis of the crude oil components, the surface active agent, solvent and alkaline solution are the main problems in the process of fracturing and pumping and so on. A highly efficient oil removal system has been developed. The removal rate of crude oil on the surface of the support agent is more than 96 %, and that of the surface oil such as large tanks is more than 92 %. High-pressure cleaning machines and high-efficiency oil removal agent removal processes have been adopted on the spot in 16 wells. They included cleaning sand tanks, large tanks and other more than 20, cleaning support, oil mud and other 6 parties, such as well mouth, throttle sink and other cleaning effect is good, can provided strong support for the cleaner oil test site.
引文
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[10]牛全宇,谢忠红,沙丽,马锋,张正,罗洪威.高效解堵洗油剂室内研究与现场应用[J].断块油气田, 2007,14(6):72-73.
[2]单海霞,何焕杰,刘晓宇,朱冬梅,马金,位华,等.油基钻屑的生物处理[J].江南大学学报(自然科学版),2013,12(4):470-474.
[3]Khanpour R,Sheikhi-Kouhsar MR,Esmaeilzadeh F&Mowla D.Removal of contaminants from polluted drilling mud using supercritical carbon dioxide extraction[J].The Journal of Supercritical Fluids,2014,88:1-7.
[4]王勇,鄢捷年,李志勇,徐生江,韦火云,李鸿飞.油基钻井液含油钻屑水射流除油技术[J].钻井液与完井液,2014,31(6):39-42.
[5]邓皓,谢水祥,王蓉沙,刘光全,许毓,彭峰,等.含油钻屑高效除油剂及除油机理研究[J].环境工程学报,2013,7(9):3607-3612.
[6]李晓军,蔡文斌,李兆敏,张明慧.油砂洗脱化学剂复配的研究[J].石油化工高等学校学报,2009,22(1):53-55.
[7]严方,谢永杰.大庆原油四组分分析及界面性质研究[J].化学分析计量,2009,18(4):20-24.
[8]林梅钦,等.大庆原油活性组分及相关界面性质[J].石油大学学报(自然科学版),2003,27(5):92-95.
[9]李志勇,韦火云,马洪涛,张丰琰,宋吻吻,李鸿飞,李岩.一种新型除油机理及含油钻屑除油技术[J].钻井工程,2017,37(2):77-83.
[10]牛全宇,谢忠红,沙丽,马锋,张正,罗洪威.高效解堵洗油剂室内研究与现场应用[J].断块油气田, 2007,14(6):72-73.