The invention discloses an efficient heat preservation heating oil pipe suitable for heavy oil exploitation, which includes an oil pipe with a high wear-resistant inner liner, a macromolecule nano-thermal insulation layer between the oil pipe and the high wear-resistant inner liner, a self-healing PTC self-limiting thermoelectric film between the macromolecule nano-thermal insulation layer and the high wear-resistant inner liner, and a laying between the macromolecule nano thermal insulation layer and the high wear-resistant inner liner. There are feeding buses, concentric conductive rings are arranged at both ends of the tubing, and concentric conductive rings are arranged at the end of the tubing and the high wear resistant inner bushing. The inner part of the tubing is provided with a high wear resistant inner liner, and a macromolecule nano insulation layer is arranged between the tubing and the high wear resistant inner liner. The high wear resistant inner liner can withstand the pressure of crude oil in the oil well, and can protect the macromolecule nano insulation layer from wear. The invention adopts the heat preservation method to ensure the constant temperature lifting of crude oil, and designs a self-recovery PTC electric heating film with plug-removal heating element inside the heat preservation layer, which truly achieves O pollution, O emission, maintenance-free and low energy consumption.
【技术实现步骤摘要】
一种适用于稠油开采的高效保温加热油管
本专利技术属于石油开采设备
,更具体地说,尤其涉及一种适用于稠油开采的高效保温加热油管。
技术介绍
随着国际石油的大量开采,石油储量越来越少,为了应对石油储量的不足,各大油田均不同程度的进行了二次采油,甚至三次采油,以前不被石油人重视的三高(高凝、髙稠、高含蜡)原油,特别是超高稠油,也千方百计的进行了规模性开采。以往的稠油开采主要工艺有蒸汽吞吐、热油掺稀、化学降粘、电加热等方式,但是这些方式在使用当中都存在各种不足。在原油开采过程中因原油举升当中的热量流失,原油还会在井筒结蜡凝固,因此需要对油井生产油管进行隔热保温处理,杜绝原油举升当中的热量损失。实现无能耗恒温采油。但是遇到停电、停井、设备维修等长时间停井时,原油还会在井筒结蜡凝固。
技术实现思路
为克服上述技术问题,本专利技术的目的在于提供一种适用于稠油开采的高效保温加热油管。为实现上述目的,本专利技术提供如下技术方案:一种适用于稠油开采的高效保温加热油管,包括油管,所述油管的内部设有高耐磨内衬套,所述油管和所述高耐磨内衬套之间设有高分子纳米保温层,所述高分子纳米保温层与所述高耐磨内衬套之间设有自愈式PTC自限温电热膜,在所述高分子纳米保温层和所述高耐磨衬套之间还敷设有馈电母线,在所述油管的两端设有同心导电环,所述同心导电环设置在所述油管和所述高耐磨内衬套的端部。进一步地,所述油管之间采用结箍连接,相邻的两个油管之间安装有伸缩导电接头,所述伸缩导电接头为三层同心环状结构,所述伸缩导电接头的内层和外层为绝缘密封层,所述伸缩导电接头的中间层为导电橡胶层。进一步地,在所 ...
【技术保护点】
1.一种适用于稠油开采的高效保温加热油管,其特征在于:包括油管,所述油管的内部设有高耐磨内衬套,所述油管和所述高耐磨内衬套之间设有高分子纳米保温层,所述高分子纳米保温层与所述高耐磨内衬套之间设有自愈式PTC自限温电热膜,在所述高分子纳米保温层和所述高耐磨衬套之间还敷设有馈电母线,在所述油管的两端设有同心导电环,所述同心导电环设置在所述油管和所述高耐磨内衬套的端部。
【技术特征摘要】
1.一种适用于稠油开采的高效保温加热油管,其特征在于:包括油管,所述油管的内部设有高耐磨内衬套,所述油管和所述高耐磨内衬套之间设有高分子纳米保温层,所述高分子纳米保温层与所述高耐磨内衬套之间设有自愈式PTC自限温电热膜,在所述高分子纳米保温层和所述高耐磨衬套之间还敷设有馈电母线,在所述油管的两端设有同心导电环,所述同心导电环设置在所述油管和所述高耐磨内衬套的端部。2.根据权利要求1所述的一种适用于稠油开采的高效保温加热油管,其特征在于,所述油管之间采用结箍连接,相邻的两个油管之间安装有伸缩导电接头,所述伸缩导电接头为三层同心环状结构,所述伸缩导电接头的内层和外层为绝缘密封层,所述伸缩导电接头的中间层为导电橡胶层。3.根据权利要求1所述的一种适用于稠油开采的高效保温加热油管,其特征在于,在所述结箍和所述同心导电环的位置处设有电缆引出接头,电缆穿过所述电缆引出接头与所述馈电母线连接。4.根据权利要求1所述的一种适用于稠油开采的高效保温加热油管,其特征在于,还包括解堵电源,所述解堵电源为AC-DC-AC-隔离-DC-超低频AC转换装置。5.根据权利要求4所述的一种适用于稠油开采的高效保温加热油管,其特征在于,所述解堵装置还插接有太阳能光伏电源,所述解...
【专利技术属性】
技术研发人员:赵福祥,范振明,王玉青,赵晋,赵鑫,韩永,李鹏,温双文,范振亭,
申请(专利权)人:沧州润涛石油设备有限公司,
类型:发明
国别省市:河北,13
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