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Layered oil pump
Theupperandlowerpumpwillworkatthesametime,theupperpumpwillworkusingtheannularspaceformedbythediameterdifferencebetweenupperplungerandlowerplunger.Theupperoilenterintotheannularspaceviaeccentricvalve,andthenexhaustbythedivertervalve.Theloweroil,whichenterintothepumpbarrelthroughtheinletvalveoflowerpump,andthenexhaustthroughoutletvalveofthelowerpump,willdischargetothegroundafterthedivertervalvemixedwiththeupperoil. Thepumpiswidelyusedforswabbingcrudeoilfrommultiplezone,whichcangreatlyimprovethesinglewellproductionandoilrecoveryefficiencyandreducetheproductioncost,hashighcomprehensiveeconomicbenefits. Pumpbore（mm）SizeofconnectingTubing（in）RangeofStroke（m）Conversiondiameter（mm）PumpconstantSizeofconnectingsuckerrodMaxoutsidediameter（mm）57/3827/8TBG 41.21.919CYG1911670/383TBG 58.83.908CYG2215070/443TBG1.2～6.054.43.345CYG2215083/4431/2TBG 70.45.602CYG2515083/5731/2TBG 61.34.248CYG25150
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Oil pump class
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Layered oil pump
Details
The upper and lower pump will work at the same time, the upper pump will work using the annular space formed by the diameter difference between upper plunger and lower plunger. The upper oil enter into the annular space via eccentric valve, and then exhaust by the diverter valve. The lower oil, which enter into the pump barrel through the inlet valve of lower pump, and then exhaust through outlet valve of the lower pump, will discharge to the ground after the diverter valve mixed with the upper oil.
The pump is widely used for swabbing crude oil from multiple zone, which can greatly improve the single well production and oil recovery efficiency and reduce the production cost, has high comprehensive economic benefits.
|
Pump bore （mm） |
Size of connecting Tubing （in） |
Range of Stroke （m） |
Conversion diameter （mm） |
Pump constant |
Size of connecting sucker rod |
Max outside diameter （mm） |
|
57/38 |
2 7/8 TBG |
|
41.2 |
1.919 |
CYG19 |
116 |
|
70/38 |
3 TBG |
|
58.8 |
3.908 |
CYG22 |
150 |
|
70/44 |
3TBG |
1.2～6.0 |
54.4 |
3.345 |
CYG22 |
150 |
|
83/44 |
3 1/2 TBG |
|
70.4 |
5.602 |
CYG25 |
150 |
|
83/57 |
3 1/2 TBG |
|
61.3 |
4.248 |
CYG25 |
150 |
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