Long plunger and sand stuck prevention artificial lift downhole pump
SANJACK has been engaged in the research and development of Sand Stuck prevention. Downhole pump for many years. Sanjack Petro manufactures Long plunger and sand stuck prevention artificial lift downhole pump in China. Sanjack Petro provide the high quality and competitive price on Long plunger and sand stuck prevention artificial lift downhole pump for you. Contact us now for Long plunger and sand stuck prevention artificial lift downhole pump quotation.
- Suitable for sand wells in which sand stuck often happens when pump stops running.
- Short barrel, long plunger, and the barrel has high wear resistance.
- Long plunger and sand stuck prevention artificial lift downhole pump manufacturers and suppliers
long plunger and sand stuck prevention artificial lift downhole pump
The pump adopts the structure of long plunger and short pump barrel, which can prevent the sand from jamming when it works and can prevent the sand from burying the plunger when it stops pumping.
It adopts short pump barrel and long plunger and sand settling structure to prevent sand particles from entering the pump barrel, reduce sand sticking and prevent sand burial.
Pumps are typically used in sandy applications and offer the following advantages:
• The movement of the traveling barrel keeps the fluid in motion and the sand washed clear—almost down to the pump seating nipple.
This advantage minimizes the possibility of sand settling around the pump and seizing it in the tubing.
• Traveling-barrel pumps are especially suitable for wells that are pumped intermittently.
Sand cannot settle inside the pump because the traveling valve at the top of the pump will close when the well is shut down.
This prevents sand from settling inside the pump—a condition that could cause the plunger to stick or prevent the standing valve from opening when the well resumes pumping.
• Both the traveling and standing valves on traveling-barrel pumps have open-type cages, which have a more rugged construction and provide more fluid passage than closed-type cages.
• The externally and internally equalized pressure on the traveling or stationary barrel provides bottom-anchor pumps with a greater resistance to bursting than top-anchor pumps.
Traveling-barrel, bottom-anchor pumps have the following limitations:
• Traveling-barrel pumps are at a disadvantage in wells with a low-static fluid level.
To enter the pumping chamber, the fluid must rise through the pull tube and plunger and then pass through the standing valve.
• The standing valve is located on top of the plunger and is smaller in diameter than the traveling valve and, therefore, offers more fluid restriction than the larger standing valve of stationary-barrel pumps.
This promotes gas breakout and could cause gas interference in the pump.
• Longer lengths of traveling-barrel pumps should not be run in deep wells.
When the standing valve (in the plunger top cage) is closed, the hydrostatic column load is transmitted by the plunger through the pull tube and hold down into the pump seating nipple.
In a deep well, this load will be sufficient to put a bow in a long pull tube, thus setting up a drag between the pull plug and the pull tube.
• Traveling-barrel pumps are not usually run in slant holes or in wells that are deviated at the pump seating nipple.
Either condition will cause excessive wear on the pump barrel and will detract from the travel of the pump and, therefore, reduce the displacement.
1. Short pump barrel, long plunger, high wear resistance of the pump barrel.
2. The plunger is always exposed at both ends of the pump barrel, and sand particles cannot enter the pump barrel to reduce sand sticking.
3. The unique sand sedimentation channel can realize the sand sedimentation of the pump and the lateral oil inflow, which prevents the phenomenon of sand burying the oil pump.
1. Used to stop pumping oil wells of easy sand card pumps.
2. The gas oil is relatively high and it is not suitable for oil wells that are prone to gas lock.
3. It is strictly prohibited to use it at the inflection point and its lower part.
4. Oil well sand content ≤ 3.2%.
1.Short barrel, long plunger, and the barrel has high wear resistance.
2.Both ends of plunger will always be out of barrel to prevent sand from going into barrel, avoiding sand stuck.
3.There is a sand passage between the inner barrel and outer barrel, along which sand can enter in tubing. So that sand will not bury the pump.
1.Suitable for sand wells in which sand stuck often happens when pump stops running.
2.Not suitable for high gas cut wells, which has frequent gas locking.
|Tubing size(in)||2 7/8 NU||3 1/2 NU|
|Sucker rod size(in)||3/4|
|Max. outer diameter(mm)||102||108|