Patent ID: 9234613
Filing Date: 2016-01-12
CPC Classification: E21B,F16L

Claim Text:
1. An assembly for a casing string capable of being disposed in a bore of a subterranean formation, the assembly comprising: a first component; a second component coupled to the first component to define an inner region, the first component configured for being easier to mill than the second component, wherein the second component coupled to the first component comprises an outer diameter that is equal to or less than an outer diameter of a portion of the casing string to which at least one of the first component or second component is coupled; an inner sealing member; an outer sealing member, wherein the inner sealing member and the outer sealing member are capable of cooperating with the first component and the second component to provide a pressure seal between the inner region and an environment exterior to the first component and the second component; wherein the first component is made from aluminum and comprises an inner wall having threads for coupling to the second component; wherein the threads are coated by a coating material capable of being between the threads and the second component when the threads are coupled to the second component, the coating material being nonconductive.