Imputing strength gradient in pressure vessels

Details Imputing strength gradient in pressure vessels Imputing strength gradient in pressure vessels

2007-03-01

2010-12-14

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Valve or choke making

C029S890131, C148S328000, C148S559000, C148S607000, C148S622000, C148S663000, C166S363000, C251S001100

Reexamination Certificate

active

07849599

ABSTRACT:
A process to manufacture an oilfield component comprises selectively reinforcing a base material with an age-hardenable clad material and age-hardening the clad material for a selected time and at a selected temperature profile, wherein the age-hardening results in the clad material developing a selected strength gradient. A body of a ram blowout preventer comprises, a low-ally base material, a vertical bore through the body, and a horizontal bore through the body intersecting the vertical bore, wherein at least a portion of the body is selectively reinforced with a clad material, and wherein the clad material is age-hardened for a selected time and at a selected temperature profile resulting in the clad material developing a selected strength gradient.

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