The utility model belongs to the technical field of oil mining equipment, which includes a sucker rod in a heavy oil horizontal well, including a rod body, a centralizer and a ball. The rod body is provided with a thread buckle, one end is a male buckle, the other end is a female buckle, the mother buckle port is sealed with a seal ring, the rod body is provided with a convex groove, and the convex groove is embedded with the centralizer. The upper end of the centralizer is provided with a wear-resistant layer, the inner of the rod body is hollow, and the inner and outer surface of the rod body is provided with a hydrogen sulphide coating, and the ball is arranged on the outer surface of the two ends of the rod body. The utility model, compared with the existing technology, installs the ball through the sucker rod hoop, causes the rod body to move along the well extension direction, reduces the friction between the rod body surface and the tubing, and sets the centralizer to reduce the axial movement of the sucker rod, and the ceramic layer of the upper end of the centralizer protects the centralizer, and its anti hydrogen sulfide coating can prevent heavy oil from the heavy oil. Hydrogen sulfide corrosion of sucker rod. The utility model provides a wear-resisting, small friction resistance and anti hydrogen sulfide heavy oil horizontal well sucker rod.
【技术实现步骤摘要】
一种稠油水平井抽油杆
本技术属于石油开采设备
,涉及一种稠油水平井抽油杆。
技术介绍
目前,抽油杆是抽油机井上的细长杆件,它上接光杆,下接稠油泵起传递动力的作用,近年来,随着石油工业的发展,在深井、水平井、斜井的抽油中,稠油水平井由于井身结构的特殊性,使得有杆泵的抽油杆柱在工作中受到较大的弯曲和扭转应力,造成抽油杆柱与油管产生严重磨损或杆柱连接处的脱扣,并且由于稠油粘度较高又造成了杆柱的下行阻力增大,稠油中所含硫化氢会对抽油杆产生严重腐蚀,抽油杆腐蚀后容易造成脱扣、短杆。有杆泵采油出现的管杆偏摩现象日益突出,普通抽油杆柱不能满足稠油水平井的开采工作要求,严重影响油田的正常生产。
技术实现思路
本技术主要是解决现有技术中存在的不足,提供一种耐磨性强、低摩阻、抗硫化氢的新型稠油水平井抽油杆。本技术解决上述技术问题所采用的技术方案为:一种稠油水平井抽油杆,其特征在于,包括杆体、扶正器、滚珠,所述杆体一端设置公扣,另一端设置母扣,所述母扣端口设置密封胶圈,所述杆体设有凸槽,所述凸槽与扶正器嵌入连接,所述扶正器上端设有耐磨层,所述杆体内部为空心结构,所述杆体内表面和外表面均设有防硫化氢涂层,所述滚珠设置于杆体两端节箍外表面。进一步的,所述杆体防硫化氢涂层为镍合金涂层。进一步的,所述耐磨层为陶瓷层。陶瓷层厚度为2mm。进一步的,所述密封胶圈为聚乙烯。进一步的,所述滚珠于与抽油杆节箍连接方式为嵌入式。节箍内设置凹槽,滚珠大部分嵌入凹槽内,滚珠露出节箍表面2mm。进一步的,滚珠位置的抽油杆外沿直径大于所述耐磨层位置的抽油杆外沿直径。本技术的有益效果为:与现有技术相比,本技术 ...
【技术保护点】
一种稠油水平井抽油杆,其特征在于,包括杆体(1)、扶正器(2)、滚珠(4),所述杆体(1)两端均设有螺纹扣,一端为公扣(5),另一端为母扣(6),所述母扣(6)端口设置密封胶圈(8),所述杆体设有凸槽(7),所述凸槽(7)与扶正器(2)嵌入连接,所述扶正器(2)上端设有耐磨层(3),所述杆体(1)内部为空心结构,所述杆体(1)内表面和外表面均设有防硫化氢涂层,所述滚珠(4)设置于杆体两端节箍外表面。
【技术特征摘要】
1.一种稠油水平井抽油杆,其特征在于,包括杆体(1)、扶正器(2)、滚珠(4),所述杆体(1)两端均设有螺纹扣,一端为公扣(5),另一端为母扣(6),所述母扣(6)端口设置密封胶圈(8),所述杆体设有凸槽(7),所述凸槽(7)与扶正器(2)嵌入连接,所述扶正器(2)上端设有耐磨层(3),所述杆体(1)内部为空心结构,所述杆体(1)内表面和外表面均设有防硫化氢涂层,所述滚珠(4)设置于杆体两端节箍外表面。2.根据权利要求1所述的一种稠油水平井抽油杆,...
【专利技术属性】
技术研发人员:李占阳,王克洋,陈明,梁承春,任恒,青俊马,兰晋,王鹏飞,李俊鹿,皱宝旺,孙远翔,王长义,刘家亮,李瑜,王克诚,黄浩,周亮,单良,
申请(专利权)人:中国石油化工股份有限公司华北油气分公司采油一厂,
类型:新型
国别省市:甘肃,62
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。