The utility model relates to a double acting oil well pump. The utility model mainly solves the problem that the existing large displacement pumps can not affect the output under the condition that the casing well is changed below the point. The utility model is characterized in that the upper part of the outer tube is connected with the oil pipe connector and mixed oil joint; the outer tube is connected to the lower part of the oil sand joint, buckled with the pump barrel, connecting the valve cover, valve cover A pump cylinder reducers; the oil sand joint connected to inner wall of the upper part of the pump barrel valve cover reducers, pump barrel B valve cover, valve cover is connected with the upper part of the pump barrel B thick wall cylinder, the middle part of the inner wall of thick wall cylinder connecting female threaded plunger, the plunger piston is connected to the lower part of the female thread of closed type valve cover, bearing tube plug; female screw plunger connected to the plunger crossovers, flow valve, flow valve cover connection short and long plunger, oil pipe inner wall is connected with the upper end of righting pressure cap, righting pressure cap and buckled with on the inner wall of the connecting sealing short circuit, short sleeve to seal the long columns. The double acting oil well pump can realize large displacement lifting of the small pump diameter below the sleeve change point.
【技术实现步骤摘要】
双作用抽油泵
本技术涉及油田采油
,特别涉及一种双作用抽油泵。
技术介绍
目前,采油井出现套变时,由于大排量抽油泵的最大外径大于套变点变径,因此无法下到套变点下部的合理深度工作,只能采取缩小泵径或上提泵挂等措施维持生产,该情况在抽油机井中占有一定的比例,严重影响了原油产量。
技术实现思路
本技术所要解决的技术问题是克服
技术介绍
中存在的现有大排量泵因无法在套变井变点以下生产而影响产量的问题,而提供一种双作用抽油泵,该双作用抽油泵,通过性好,排量能满足高产井举升需求,使双作用抽油泵最大外径缩小到Φ102mm,并且一个冲程完成两次进排液,实现套变点以下小泵径大排量举升。本技术解决其问题可通过如下技术方案来达到:该双作用抽油泵,包括外管、长柱塞,所述外管上部通过上变扣接箍连接油管短接,油管短接上部连接混流出油接头;所述外管下部连接进油沉沙接头,进油沉沙接头通过变扣接箍连接泵筒阀罩A泵筒阀罩异径接头;所述进油沉沙接头上部内壁依次连接泵筒阀罩异径接头、泵筒阀罩B,泵筒阀罩B上部连接厚壁筒,厚壁筒内壁中部连接母螺纹柱塞,母螺纹柱塞下部连接柱塞闭式阀罩、支座管塞;母螺纹柱塞上部 ...
【技术保护点】
一种双作用抽油泵,包括外管(10)、长柱塞(12),其特征在于:所述外管(10)上部通过上变扣接箍(9)连接油管短接(7),油管短接(7)上部连接混流出油接头(5);所述外管(10)下部连接进油沉沙接头(29),进油沉沙接头(29)通过变扣接箍(28)连接泵筒阀罩A(27)、泵筒阀罩异径接头(24);所述进油沉沙接头(29)上部内壁依次连接泵筒阀罩异径接头(30)、泵筒阀罩B(33),泵筒阀罩B(33)上部连接厚壁筒(11),厚壁筒(11)内壁中部连接母螺纹柱塞(19),母螺纹柱塞(19)下部连接柱塞闭式阀罩(20)、支座管塞(23);母螺纹柱塞(19)上部依次连接柱塞变扣 ...
【技术特征摘要】
1.一种双作用抽油泵,包括外管(10)、长柱塞(12),其特征在于:所述外管(10)上部通过上变扣接箍(9)连接油管短接(7),油管短接(7)上部连接混流出油接头(5);所述外管(10)下部连接进油沉沙接头(29),进油沉沙接头(29)通过变扣接箍(28)连接泵筒阀罩A(27)、泵筒阀罩异径接头(24);所述进油沉沙接头(29)上部内壁依次连接泵筒阀罩异径接头(30)、泵筒阀罩B(33),泵筒阀罩B(33)上部连接厚壁筒(11),厚壁筒(11)内壁中部连接母螺纹柱塞(19),母螺纹柱塞(19)下部连接柱塞闭式阀罩(20)、支座管塞(23);母螺纹柱塞(19)上部依次连接柱塞变...
【专利技术属性】
技术研发人员:颜凡全,刘卫庆,戴宏伟,刘永鹏,赵立丰,朱广宇,王诗征,
申请(专利权)人:中国石油天然气股份有限公司,大庆油田有限责任公司,
类型:新型
国别省市:北京,11
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