Coupling For Rods
AssigneeMaterion Corporation
InventorsWilliam D. Nielsen, Diane M. Nielsen, Fritz C. Grensing
Life of this patent
Estimating the term…
Abstract
A cold worked and spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a 0.2% offset yield strength of at least 75 ksi, is used to form a sucker rod coupling or subcoupling. Each coupling is formed from a core having two ends, each end having an internal thread. These box ends engage the pin of a sucker rod or other rod. The exterior surface of the core includes grooves running between the two ends.
Claims21
1-15. (canceled)
A drilling component for use in oil and gas production comprising:
- a spinodally-hardened copper-nickel-tin alloy including from about 8 wt % to about 20 wt % nickel and from about 5 wt % to about 11 wt % tin.
A drilling component for use in oil and gas industry comprising:
- a spinodally-hardened copper-nickel-tin alloy consisting of from about 8 wt % to about 20 wt % nickel, from about 5 wt % to about 11 wt % tin, and the remaining balance being copper, wherein the alloy is substantially free of beryllium and lead.
Dependencies are inferred from the claim text.