The invention discloses a double anti-pumping pump, which comprises a pump barrel, which is connected with a working cylinder through an upper joint, and a pump barrel is biased and fixed by a lower joint; a ring valve seat is fixed on the working barrel; a slide sleeve is fixed on the slide sleeve, and a ring valve plug is fixed on the upper end of the slide sleeve; and a ring valve plug is matched with the ring valve seat. The invention relates to a double anti-sucker rod pump, which adopts a ring valve plug in the pump, closes the ring valve plug in the downstroke, has a high pressure above the valve plug and a low pressure in the pump chamber, and the pressure difference stretches the sucker rod string to avoid the eccentric wear of the sucker rod caused by the bending of the sucker rod string; moreover, the downdraft force caused by the different pressure of the upper and lower end faces of the slide rod is increased during the downstroke, so that the downward suspension point load is Conventional pump increases. Up stroke, because of the opening of the ring valve plug, the top of the plunger is the same pressure system. Under the condition of constant pump diameter, the upstream suspension load is the same as that of the conventional pump, the upstream suspension load is unchanged, the download load load load rises, and the work done by the suspension decreases, thus saving energy.
【技术实现步骤摘要】
一种双防抽油泵
本专利技术属于油田采油
,涉及一种双防抽油泵。
技术介绍
抽油机井在抽油过程中,在下冲程时,抽油杆柱的下端面会承受液柱高压,同时也会受到井液沿程阻力及杆柱大直径节点处局部阻力的作用,抽油杆柱轴向受压,中下部会产生失稳弯曲,该弯曲波峰压在管壁上运行,会形成杆管偏磨,导致管漏、断杆,既会造成杆管的损耗,也使检泵周期缩短。此外,很多油井会因地层出砂或其他杂质进泵造成卡泵,因此解决出砂对检泵周期的影响,也是采油工艺技术所要面对的课题。现有技术中,对抽油井防偏磨问题,目前采取在杆柱上加装多个扶正器的做法,通过扶正器将杆管隔开;但该方法由于在杆柱上加装了太多的大直径节点,进一步增加了杆柱在上下冲程过程中的运行阻力,使交变载荷增大,抽油能耗增加,杆柱受力关系恶化,增加了杆柱断脱几率。因此需要进一步研究探索改善或解决杆管偏磨的问题。对于抽油井出砂的问题,目前有些井采用在泵下加装防砂筛管,或在泵柱塞上加防砂槽、在柱塞端部加刮刀、或在泵筒上加分段螺旋槽,以及采用双柱塞把进入泵上的砂子倒到柱塞下方等。但这些方法并没能很好地解决问题。由于泵下使用防砂筛管是靠微细孔道 ...
【技术保护点】
1.一种双防抽油泵,其特征在于,包括泵筒(6),所述泵筒(6)通过上接头(5)连接有工作筒(1),所述泵筒(6)通过下接头(10)连接偏置固定凡尔(11);所述工作筒(1)上固定有环阀座(3);所述溜杆(7)外套有滑套(4),所述滑套(4)上端固定有环形阀塞(2);所述环形阀塞(2)与所述环阀座(3)相配合。
【技术特征摘要】
1.一种双防抽油泵,其特征在于,包括泵筒(6),所述泵筒(6)通过上接头(5)连接有工作筒(1),所述泵筒(6)通过下接头(10)连接偏置固定凡尔(11);所述工作筒(1)上固定有环阀座(3);所述溜杆(7)外套有滑套(4),所述滑套(4)上端固定有环形阀塞(2);所述环形阀塞(2)...
【专利技术属性】
技术研发人员:聂文雨,李青,
申请(专利权)人:延安奇源石油工程技术服务有限公司,
类型:发明
国别省市:陕西,61
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