纳米保温油管的研究及应用

Research and Application of Nano Heat Preservation Tubing

采油二厂稠油产量占比90%以上,掺稀降黏为主要的降黏工艺,随着稠油区块的逐年开发,稠油产量逐年上升,掺稀油用量急剧增加,在低油价、稀稠油差价大的严峻形势下,掺稀降黏效益低已成为稠油高效开发的制约因素。通过矿物绝缘电缆加热工艺节约稀油效果明显,但矿物绝缘加热技术存在能耗高、电网负载大。基于稠油对温度的温敏性,结合塔河稠油在2500 m左右出现拐点和流动性变的特点,通过研究井筒保温技术,应用纳米气凝胶对稠油井筒温度场进行人工干预,取得了良好的降黏效果,实现了稠油的高效开发。

The production of heavy oil in the Second Oil Production Plant accounts for more than 90%of the total.The main viscosity reduction technology is the mixing of thin oil.With the development of heavy oil blocks,the production of heavy oil keeps increasing year by year,and the consumption of mixing thin oil increases sharply.In the severe situation of low oil price and large difference in the price of thin and heavy oil,the low mixing viscosity reduction benefit has become a constraint factor for the efficient development of heavy oil.The heating technology of mineral insulated cables can save oil obviously,but it has high energy consumption and large loads of power grid.Based on the thermo sensitivity of heavy oil to temperature,combined with the characteristics of inflection point and mobility of Tahe heavy oil at around 2500 m,The researchers carried outthe study of wellbore insulation technology,and promoted the application of nano aerogels to manual intervention of heavy oil wellbore temperature fields,which has achieved good viscosity reduction effect as well as the efficient development of heavy oil.