Sucker Rods and Couplings
Improve lifetime performance with maximum quality manufacturing
Choose high-quality and highly corrosion-resistant coated rods and couplings from Schlumberger.
Efficiently handle high-viscosity fluid and high sand cut
Maximize production while leaving a minimal footprint with progressing cavity pump (PCP) systems. The KUDU PCP is a positive displacement pump with a range of models, elastomers, and rotor options to meet your specific application. These PCPs are designed to deliver a consistent head capacity with superior handling of solids and high-viscosity fluids.
KUDU’s elastomers provide significant improvements in bond strength, tear strength, abrasion resistance, gas and water resistance, and temperature ratings. This has expanded the use of PCPs in a variety of environments. Elastomers are primarily made up of nitrile, a copolymer of butadiene, and acrylonitrile. In addition, KUDU offers a fluorocarbon elastomer for greater resistance to aromatics and H2S.
|KUDU Elastomer Relative Specifications|
|Elastomer||KUDU Reference||Hardness, Shore A||Max. Temperature, degF [degC]||Sand Resistance||H2S Resistance||CO2 Resistance||Aromatics||Hydrolosis||Explosive Decompression|
|Elastomer High-nitrile soft||KUDU Reference HNS||Hardness, Shore A 55||Max. Temperature, degF [degC] 176 ||Sand Resistance 8||H2S Resistance 6||CO2 Resistance 5||Aromatics 3||Hydrolosis 7||Explosive Decompression 6|
|Elastomer High-nitrile hard||KUDU Reference HNH||Hardness, Shore A 68||Max. Temperature, degF [degC] 248 ||Sand Resistance 6||H2S Resistance 7||CO2 Resistance 7||Aromatics 7||Hydrolosis 5||Explosive Decompression 8|
|Elastomer Hydrogenated high-nitrile soft||KUDU Reference HHNH||Hardness, Shore A 80||Max. Temperature, degF [degC] 284 ||Sand Resistance 5||H2S Resistance 7||CO2 Resistance 8||Aromatics 8||Hydrolosis 8||Explosive Decompression 8|
|Elastomer Fluorocarbon hard||KUDU Reference FKMH||Hardness, Shore A 78||Max. Temperature, degF [degC] 194 ||Sand Resistance 2||H2S Resistance 8||CO2 Resistance 6||Aromatics 9||Hydrolosis 9||Explosive Decompression 5|
The KUDU PCP features a single helical rotor that rotates inside a double internal helical elastomer-lined stator. The stator is run into the well on the end of the production tubing while the rotor is connected to a rodstring. The PCP lifts fluid by transferring it from the intake at the bottom of the pump to the discharge at the top through a sequence of small, discrete cavities that form as the rotor turns eccentrically within the stator.
The PCP delivers a constant flow, proportional to the size of the cavity and the rotational speed of the rotor. A hydraulic or electric drive system at the surface rotates the rodstring, which causes the rotor to spin within the fixed stator, resulting in fluid production at the surface.
Increase efficiency and maximize uptime using specialized products to extend the operating range
Extend the run life of PCP system with accessories designed for abrasive, corrosive, and highly viscous conditions.