CN113102197A - 一种聚氟陶瓷防腐油管及其生产工艺 - Google Patents
一种聚氟陶瓷防腐油管及其生产工艺 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
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Abstract
本发明公开了一种聚氟陶瓷防腐油管及其生产工艺,涉及油管防偏磨防腐技术领域,包括油管和聚氟陶瓷涂料,聚氟陶瓷防腐油管的生产工艺包括如下步骤:油管预热:预热炉的加热温度控制在150‑260℃,保温至少时间1.5小时后,将炉内链条频率调整为20‑50HZ进行滚动出管;喷涂:喷涂时的上粉温度为160‑240℃,调整流化压力为0.03‑0.06MPa,喷粉小车进枪频率为20‑50HZ,喷粉小车退枪频率为12‑18HZ,辊轮转速为15‑35HZ,喷枪出粉量控制在0.13‑0.45kg;固化:喷涂完成后使用固化炉进行固化处理,固化温度为180‑270℃,固化时间1‑1.5小时,检测涂层厚度为350‑500µm;聚氟陶瓷涂料具有极强的耐蚀性以及良好的自润滑性、热稳定性和耐老化性,在最优的工艺参数下与管材内壁结合,形成防腐耐磨层,达到防腐的效果。
Description
技术领域
本发明涉及油管防偏磨防腐技术领域,具体涉及一种聚氟陶瓷防腐油管及其生产工艺。
背景技术
油田开发到高含水期,由于油藏状况、井液介质和井筒情况的变化,对于抽油机井存在严重的管杆腐蚀偏磨问题。
现有技术的问题是油管内径尺寸小,在井下使用过程中出液量低,防结垢、防结蜡、防腐蚀效果差,导致油管结垢和结蜡严重,造成油管因内壁腐蚀和偏磨严重无法正常使用,生产成本增加。
因此,急需开发一种新式的防偏磨、防腐油管。
发明内容
本发明提供了一种聚氟陶瓷防腐油管及其生产工艺,目的就在于解决油井管杆偏磨和注水井油管腐蚀的问题。
本发明的技术方案是:一种聚氟陶瓷防腐油管,包括油管和聚氟陶瓷涂料,所述聚氟陶瓷涂料包括以下组分:45%-50%的环氧树脂、9%-13%的固化剂、20%-25%的填料、0.8%-1.5%的助剂、2%-7%的金刚砂、5%-8%的硅微粉、3%-5%的钛白粉、1%-3%的碳化硅聚四氟粉和1.5%-4.5%的耐磨填充料,各组份的质量百分含量之和为100%。
优选的,所述填料包括云母粉、二硫化钼和硫酸钡,所述云母粉、二硫化钼和硫酸钡的质量比为1:1-1.4:8-9.5。
优选的,所述助剂包括聚丙烯流平剂和气相二氧化硅触变剂,所述聚丙烯流平剂和气相二氧化硅触变剂的质量比为1:2-4。
优选的,所述耐磨填充料包含但不仅限于氧化镁,氧化铝,氧化硅和氧化锆。
一种聚氟陶瓷防腐油管的生产工艺,包括如下步骤:
油管预热:所述油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在150-260℃,保温至少时间1.5小时后,将炉内链条频率调整为20-50HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为160-240℃,调整流化压力为0.03-0.06MPa,喷粉小车进枪频率为20-50HZ,喷粉小车退枪频率为12-18HZ,辊轮转速为15-35HZ,喷枪出粉量控制在0.13-0.45kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为180-270℃,固化时间1-1.5小时,检测涂层厚度为350-500µm;最终进行检测。
优选的,所述喷涂时的空气湿度<90%。
优选的,所述油管预热温度为190-230℃。
优选的,所述喷涂时的上粉温度为180-220℃。
本发明与现有技术相比较,具有以下优点:
在注水井中应用,本发明提供的聚氟陶瓷涂层油管的有效使用寿命达到三年以上,解决了腐蚀介质对油管的结垢、结蜡、腐蚀、偏磨问题;在偏磨油井中应用,聚氟陶瓷油管比普通涂层油管使用寿命提高三倍以上;聚氟陶瓷油管的聚氟陶瓷防腐层厚度控制在0.35-0.5mm左右,这样不仅大大提升了油井的出液量,同时也便于下各种井下工具。
聚氟陶瓷涂料具有极强的耐蚀性以及良好的自润滑性、热稳定性和耐老化性,在最优的工艺参数下与管材内壁结合,形成防腐耐磨层,达到防腐的效果。经过适当的成份控制,其硬度可达到HV300以上,甚至更高;并且其耐热性好(耐温≧140℃),耐低温性能良好。
具体实施方式
下面是结合实施例对本发明进一步说明。
实施例一
一种聚氟陶瓷防腐油管,包括油管和聚氟陶瓷涂料,聚氟陶瓷涂料包括以下组分:49.62%的环氧树脂、10.72%的固化剂、22.94%的填料、1.13%的助剂、2.24%的金刚砂、6.04%的硅微粉、3.24%的钛白粉、1.68%的碳化硅聚四氟粉和2.39%的氧化锆。
更为详细的,填料包括云母粉、二硫化钼和硫酸钡,云母粉、二硫化钼和硫酸钡的质量比为1:1:8.7。
更为详细的,助剂包括聚丙烯流平剂和气相二氧化硅触变剂,聚丙烯流平剂和气相二氧化硅触变剂的质量比为1:3.2。
在喷涂前首先要对油管进行清理,依次进行高温烧结、外除锈及内除。
聚氟陶瓷防腐油管的生产工艺,包括如下步骤:
油管预热:油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在150℃,保温至少时间1.5小时后,将炉内链条频率调整为20HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为160℃,调整流化压力为0.03MPa,喷粉小车进枪频率为20HZ,喷粉小车退枪频率为12HZ,辊轮转速为15HZ,喷枪出粉量控制在0.13kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为180℃,固化时间1小时,检测涂层厚度为350µm,取样做其它性能指标,均能够满足标准要求。
本实施例中的聚氟陶瓷涂料由非金属、金属材料和聚四氟乙烯树脂经过特殊加工工艺制成,通过填充特殊改性的并具有一定粒径的抗压高硬填料即氧化锆作为耐磨填充料,形成独特的分子结构和组合;本实施例中的聚氟陶瓷防腐层厚度控制在0.35-0.5mm左右,这样不仅大大提升了油井的出液量,同时也便于下各种井下工具。
实施例二
作为本发明的一项优选实施例,本实施例与实施例一的不同之处在于耐磨填充料的成分,具体为:本实施例中的耐磨填充料由氧化镁,氧化铝,氧化硅和氧化锆混合而成。
使用此混合耐磨填充料的聚氟陶瓷防腐油管比普通涂层油管的耐磨性能提高近5倍,同时相配对的试件(抽油杆接箍材料)的磨损量也降低近一半。
实施例三
作为本发明的一项优选实施例,本实施例与实施例一的不同之处在于聚氟陶瓷防腐油管的生产工艺参数;
聚氟陶瓷防腐油管的生产工艺,包括如下步骤:
油管预热:油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在180℃,保温至少时间1.5小时后,将炉内链条频率调整为30HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为180℃,调整流化压力为0.04MPa,喷粉小车进枪频率为30HZ,喷粉小车退枪频率为14HZ,辊轮转速为22HZ,喷枪出粉量控制在0.2kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为195℃,固化时间1.2小时,检测涂层厚度为400µm,取样做其它性能指标,均能够满足标准要求。
实施例四
作为本发明的一项优选实施例,本实施例与实施例三的不同之处在于聚氟陶瓷防腐油管的生产工艺参数;
聚氟陶瓷防腐油管的生产工艺,包括如下步骤:
油管预热:油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在200℃,保温至少时间1.5小时后,将炉内链条频率调整为40HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为200℃,调整流化压力为0.05MPa,喷粉小车进枪频率为40HZ,喷粉小车退枪频率为16HZ,辊轮转速为27HZ,喷枪出粉量控制在0.35kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为246℃,固化时间1.4小时,检测涂层厚度为450µm,取样做其它性能指标,均能够满足标准要求。
实施例五
作为本发明的一项优选实施例,本实施例与实施例四的不同之处在于聚氟陶瓷防腐油管的生产工艺参数;
聚氟陶瓷防腐油管的生产工艺,包括如下步骤:
油管预热:油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在260℃,保温至少时间1.5小时后,将炉内链条频率调整为50HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为240℃,调整流化压力为0.06MPa,喷粉小车进枪频率为50HZ,喷粉小车退枪频率为18HZ,辊轮转速为35HZ,喷枪出粉量控制在0.45kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为270℃,固化时间1.5小时,检测涂层厚度为500µm,取样做其它性能指标,均能够满足标准要求。
本发明并不限于上述的实施方式,在本领域技术人员所具备的知识范围内,还可以在不脱离本发明宗旨的前提下做出各种变化,变化后的内容仍属于本发明的保护范围。
Claims (8)
1.一种聚氟陶瓷防腐油管,包括油管和聚氟陶瓷涂料,其特征在于,所述聚氟陶瓷涂料包括以下组分:45%-50%的环氧树脂、9%-13%的固化剂、20%-25%的填料、0.8%-1.5%的助剂、2%-7%的金刚砂、5%-8%的硅微粉、3%-5%的钛白粉、1%-3%的碳化硅聚四氟粉和1.5%-4.5%的耐磨填充料,各组份的质量百分含量之和为100%。
2.根据权利要求1所述的一种聚氟陶瓷防腐油管,其特征在于:所述填料包括云母粉、二硫化钼和硫酸钡,所述云母粉、二硫化钼和硫酸钡的质量比为1:1-1.4:8-9.5。
3.根据权利要求1所述的一种聚氟陶瓷防腐油管,其特征在于:所述助剂包括聚丙烯流平剂和气相二氧化硅触变剂,所述聚丙烯流平剂和气相二氧化硅触变剂的质量比为1:2-4。
4.根据权利要求1所述的一种聚氟陶瓷防腐油管,其特征在于:所述耐磨填充料包含但不仅限于氧化镁,氧化铝,氧化硅和氧化锆。
5.一种聚氟陶瓷防腐油管的生产工艺,其特征在于:包括如下步骤:
油管预热:所述油管使用预热炉进行喷涂前的预热工作,预热炉的加热温度控制在150-260℃,保温至少时间1.5小时后,将炉内链条频率调整为20-50HZ进行滚动出管;
喷涂:使用粉末涂层喷涂设备进行喷涂,喷涂时的上粉温度为160-240℃,调整流化压力为0.03-0.06MPa,喷粉小车进枪频率为20-50HZ,喷粉小车退枪频率为12-18HZ,辊轮转速为15-35HZ,喷枪出粉量控制在0.13-0.45kg;
固化:喷涂完成后使用固化炉进行固化处理,固化温度为180-270℃,固化时间1-1.5小时,检测涂层厚度为350-500µm;最终进行检测。
6.根据权利要求5所述的一种聚氟陶瓷防腐油管的生产工艺,其特征在于:所述喷涂时的空气湿度<90%。
7.根据权利要求5所述的一种聚氟陶瓷防腐油管的生产工艺,其特征在于:所述油管预热温度为190-230℃。
8.根据权利要求5所述的一种聚氟陶瓷防腐油管的生产工艺,其特征在于:所述喷涂时的上粉温度为180-220℃。
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