A sucker rod centralizer in pipe supporting, including tubing collar, tubing, tubing ends with an external thread, tubing thread at the upper end of the tubing and tubing coupling at the lower end of the threaded connection, ensure the sealing of the pipe wall, the installation of 2 6 within a period. A non metal material, the inner wall of the outer wall of the tubing centralizer and tubing to fit, both ends of the guiding angle at both ends of the centering chamfer, a material for high density polyethylene, continuous sucker rod into the tubing centralizer is provided when continuous pumping in a bar and contact in a non metal material wear, continuous sucker rod centralizer in between and do not wear, can avoid the abrasion of the oil sucker rod and tubing between the inner wall, without using the continuous sucker rod at In order to use the inner lining tubing to prevent wear and tear, it can reduce the investment, save the cost, and have significant economic benefit.
【技术实现步骤摘要】
一种与连续抽油杆配套的内扶正油管
本技术是油田抽油井内用的设备,是一种与连续抽油杆配套的内扶正油管。
技术介绍
在有杆泵抽油井中,抽油杆与油管始终是在接触中相对运动,必然存在着磨损问题,现有的防磨损方法是在抽油杆上加扶正器,或配套内衬油管,但在连续抽油杆上无法安装抽油杆扶正器,所以用连续抽油杆抽油的油井杆管磨损严重。为了防止连续抽油杆与油管之间的磨损,只有配套使用内衬油管。内衬油管就是在普通油管内全程内衬高由高密度聚乙烯材料制作的胶管,使连续抽油杆与内衬的聚乙烯材料制作的胶管接触,防止连续抽油杆与油管之间的磨损。但内衬油管是由专用设备和专用材料制作的,它的材料费用高,设备庞大,制作工艺复杂,内衬油管的价格昂贵,因而使用内衬油管防止连续抽油杆与油管之间的磨损投入的费用高,不是很经济。
技术实现思路
本技术的目的是设计一种与连续抽油杆配套的内扶正油管,可以防止连续抽油杆与油管之间的磨损,并能克服投入费用高的问题。本技术的目的是这样实现的:包括油管接箍、油管,油管的两端有油管外螺纹,油管上端的油管外螺纹与油管接箍下端的油管内螺纹连接,连接处保证密封,在油管的内壁安装2-6个内扶正套,内扶正套为非金属材料,内扶正套的外壁与油管的内壁为过盈配合。油管的两端有导引角,所述的导引角与轴线之间的夹角为10︒~40︒。内扶正套的两端有内倒角,所述的内倒角与轴线之间的夹角为20︒~60︒。内扶正套的材料为高密度聚乙烯。本技术的有益效果是:在油管的内壁均匀安装2-6个内扶正套,连续抽油杆下入装有内扶正套的油管时,连续抽油杆与内扶正套接触,内扶正套为耐磨的非金属材料,连续抽油杆与内扶 ...
【技术保护点】
一种与连续抽油杆配套的内扶正油管,包括油管接箍(1)、油管(2),油管(2)的两端有油管外螺纹,油管(2)上端的油管外螺纹与油管接箍(1)下端的油管内螺纹连接,连接处保证密封,其特征是:在油管(2)的内壁安装2‑6个内扶正套(4),内扶正套(4)为非金属材料,内扶正套(4)的外壁与油管(2)的内壁为过盈配合。
【技术特征摘要】
1.一种与连续抽油杆配套的内扶正油管,包括油管接箍(1)、油管(2),油管(2)的两端有油管外螺纹,油管(2)上端的油管外螺纹与油管接箍(1)下端的油管内螺纹连接,连接处保证密封,其特征是:在油管(2)的内壁安装2-6个内扶正套(4),内扶正套(4)为非金属材料,内扶正套(4)的外壁与油管(2)的内壁为过盈配合。2.根据权利要求1所述的一种与连续抽油杆配套...
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