摘要
在稠油开采中,抽油杆在液体中运动时,所受到的摩擦阻尼力很大,有时高达几十千牛。上冲程时,该力有加大悬点载荷的作用;下冲程时,该力使抽油杆下行困难,甚至悬点载荷为零。为了开采稠油,必须根据其特点设计适应的游梁式抽油机。文章分析了稠油用抽油机的受力特点,提出了该类抽油机的设计要求。
In heavy oil production, the friction damping force that the pump rod may stand during its movement in liquid may be as big as tens of kilo-newtons. The friction force increases suspended load in upstroke, and makes the rod difficult to move clown till zero suspended load. So the corresponding beam pumping machine has to be designed In the article, the mechanical features of the beam pumping unit is analyzed, and the design requirements of such kind of pumping machine are presented.
出处
《石油矿场机械》
2006年第6期55-57,共3页
Oil Field Equipment
关键词
稠油
抽油机
摩擦阻尼力
平衡力
heavy oil
pumping unit
friction damping force
balance farce
