塔河油田九区奥陶系化学清蜡技术研究
|
摘要
塔河九区奥陶系以TK916井为代表,具有高压(40MPa)、高气量(日产7万方)、高含硫化氢(最高2787ppm)的特点,平均含蜡量11.23%,举升过程中井筒蜡堵现象突出。本文为了克服油基清蜡剂毒性大、易燃、易爆、对地层伤害大的缺点,通过筛选20种溶剂,研制环保无毒害的油基清蜡剂,扩大使用范围,提高塔河九区清蜡效果。
The Ordovician in Tahe 9 area is represented by TK916 well, which has the characteristics of high pressure(40 MPa), high gas volume(70,000 square meters per day), high hydrogen sulfide content(the highest 2787 ppm), with an average wax content of 11.23%. Wax plugging in wellbore is prominent during lifting. In order to overcome the shortcomings of oil-based paraffin remover, such as high toxicity, flammability, explosion and serious damage to formation, 20 kinds of solvents were screened to develop environmentally friendly and non-toxic oil-based paraffin remover, so as to expand the scope of application and improve the effect of paraffin removal in Tahe Ninth District.
The Ordovician in Tahe 9 area is represented by TK916 well, which has the characteristics of high pressure(40 MPa), high gas volume(70,000 square meters per day), high hydrogen sulfide content(the highest 2787 ppm), with an average wax content of 11.23%. Wax plugging in wellbore is prominent during lifting. In order to overcome the shortcomings of oil-based paraffin remover, such as high toxicity, flammability, explosion and serious damage to formation, 20 kinds of solvents were screened to develop environmentally friendly and non-toxic oil-based paraffin remover, so as to expand the scope of application and improve the effect of paraffin removal in Tahe Ninth District.
引文
[1] 田军,徐锦方,薛群基.防止蜡在固液界面上结晶的化学材料[J].石油钻采工艺,1996,(4):90～93.
[2] 陈馥,曲金明.油井清防蜡剂的研究现状及发展方向[J].石油与天然气化工,2003,32(4):243～245.
[3] 武继辉,孙军,贺志刚,等.油井清、防蜡技术研究现状[J].油气田地面工程,2004,23(7):14～14.
[4] 张海龙,吴栋,何樱.浅析油井结蜡机理和清防技术[J].工业技术,2012,(19):15.
[5] 刘军善,缑芸,侯超,等.文东油田油井结蜡机理研究及防治技术[J].内蒙古石油化工,2007,(12):382～384.
[2] 陈馥,曲金明.油井清防蜡剂的研究现状及发展方向[J].石油与天然气化工,2003,32(4):243～245.
[3] 武继辉,孙军,贺志刚,等.油井清、防蜡技术研究现状[J].油气田地面工程,2004,23(7):14～14.
[4] 张海龙,吴栋,何樱.浅析油井结蜡机理和清防技术[J].工业技术,2012,(19):15.
[5] 刘军善,缑芸,侯超,等.文东油田油井结蜡机理研究及防治技术[J].内蒙古石油化工,2007,(12):382～384.