Sucker Rods and Couplings
Improve lifetime performance with maximum quality manufacturing
Choose high-quality and highly corrosion-resistant coated rods and couplings from Schlumberger.
RHAC and RHAM standard sucker rod pumps
RHA API insert pumps are heavy-walled, stationary barrel, top anchor pumps recognized by API as a standard design. These pumps are suitable for moderate depths with high sand fallback on well shutdown. Fluid dispersion directly above the seat nipple prevents the pump from becoming stuck in such a situation.
The heavy-walled barrel is less sensitive to pressure and therefore can be run slightly deeper than the otherwise similar thin-walled RWA API insert pumps.
Seating options on this pump include mechanical or cup types suitable for high temperatures and mechanical types to simplify well maintenance. A mechanical hold-down does not require repair unless major damage has occurred, whereas cups should be replaced every time the pump is unset. Both hold-down types follow the same procedure of setting by placing the weight of the sucker rods down on the pump and unsetting by lifting them up.
This pump can be further optimized by selecting the metallurgy and coating of various components to maximize pump life in specific well conditions.
These products provide greater flexibility during operations and can extend the life of the rod lift system.