Pump Equipment

Downhole Sucker-Rod Pump

Downhole sucker-rod pumps are a key component of a sucker-rod lift type of artificial lift system.

KSBS pumps offer the right combination of manufacturing, engineering and application expertise. Insert pumps are constructed with externally or internally threaded, heavy-wall barrel for greater strengthand rigidity and are especially applicable to wells of greater depth.

Thin- wall barrel pumps are most commonly run at moderate well depths and provide large insert rod pump for any given tubing size. Tubing pumps combine a heavy-wall barrel, a proven stroke-through design and the largest possible bore to operate safely in even the deepest wells.

Insert and Tubing Types

Seating assemblies could be done from:

• carbon stells
• stainless steel
• stellit
• ceramics

PCP Pump

Progressing cavity pumping (PCP) systems derive their name from the unique, positive displacement pump.

Although these pumps are now most commonly referred to as progressing cavity (PC) pumps, they also are called screw pumps.

They are increasingly used for artificial lift, and have been adapted to a range of challenging lift situations (e.g., heavy oil, high sand production, gassy wells, directional or horizontal wells).

Coupling

KSBS manufactures a wide variety of couplings in various sizes for subsurface rod pumps. Couplings are available in the following materials: steel, alloy, stainless steel and nickel-copper alloy. Sucker rod couplings and polished-rod couplings are provided in API Grade T and non API grade spray metal.

Extension/Stop Pin

When the stator size is bigger than the tubing size a suitable extension-pup joint needs to be selected to prevent tubing wear and rotor malfunction due to the rotor head eccentricity.

Gas Separator

Gas Separator consists of a tube, being screwed to the torque anchor. The fluid-gas mixture is drawn through the holes of the gas separator. The gas, being lighter, rises upwards out of the oil- water mixture while the heavier oil/water mixture moves downwards within the gas separator, and rises to the pump.

Torque Anchor

Torque anchor is used to take the reactive torque given by the friction between the rotor and the stator of the helicoidal pump with progessing cavities, to prevent the tubing from unscrewing. It is mounted under the pump.

The blades are permanently pushed and kept in touch with the well casing wall by means of helicoidal springs. The oil pumped is passing through the central hollow shaft on to which the cams are mounted.

When the tubing rotates clockwise, the anchoring blades bite into the casing wall whenever a reactive torque is developed. Disengaging is done by rotating the tubing counter- clockwise from the surface.