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环流式抽稠油泵
简 介：
环流式抽稠油泵是反馈型抽稠油泵的改进型，保留了原油的优点，并将进油阀改为环流阀，增大了过留面积，缩短了进油流程，从而减小了进油阻力。同时下泵采用短泵筒长柱塞，能有效地避免砂卡现象。该泵适用于7” 套管井，φ57/φ38 泵也可用于5 1/2” 套管井。
The pump is a improved type of the hydraulic feed-back pump for heavy crude oil.Not only the former advantages have been remained but the inflow valve has been changed to be a annular valve in this kind of pump，which obtains a large flow area and shortens the inflow tubing ，so the inflow resistance is decreased .In the meantime ，for using a long plunger and a short barrel in lower pump，the phenomenon of sand-up can be efficiently avoided .The pump is suitable for 7” casing well，the pumpφ57/φ38 may be used in 5 1/2”casing well.
技术参数：
|
泵径规格 Pump bore （mm） |
柱塞长度 Length of plunger（m） |
泵筒长度 Length of barrel（m） |
冲程范围 Range of Stroke （m） |
联接油管规范 Size of connecting Tubing （in） |
联接抽油杆规范 Size of connecting sucker rod |
泵常数 Pump constant |
最大外径 Max outside diameter （mm） |
||
|
上柱塞 Upper Plunger （m） |
下柱塞 Lower Plunger （m） |
上泵筒 Upper barrel （m） |
下泵筒 Lower barrel （m） |
||||||
|
57/38 |
|
|
|
|
|
2 1/2 TBG |
CYG19 |
1.91 |
|
|
70/38 |
|
|
|
|
|
3 TBG |
CYG19 |
3.91 |
|
|
70/44 |
0.6～1.2 |
2.4～7.2 |
3.0～7.8 |
0.6～1.2 |
1.8～6.0 |
3 TBG |
CYG22 |
3.35 |
142 |
|
83/44 |
|
|
|
|
|
3 1/2 TBG |
CYG25 |
5.60 |
|
|
83/57 |
|
|
|
|
|
3 1/2 TBG |
CYG25 |
4.25 |
|
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