SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION

Circulating Heavy Oil Well Pump

TheCirculating heavy oil well 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.


Technical parameter:


Pump bore

(mm)

Length of plunger(m)

Length of barrel(m)

Range of

Stroke

(m)

Size of connecting

Tubing

(in)

Size of connecting sucker rod

Pump constant

Max outside diameter

(mm)

Upper Plunger

(m)

Lower Plunger

(m)

Upper barrel

(m)

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



PRODUCT
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