Well assembly coupling

摘要

Assemblies that can be disposed in a subterranean bore and that can facilitate branch wellbore creation are described. An assembly can include threadedly coupled components having inner and outer sealing members in grooves. The sealing member can cooperate with the components to provide a pressure seal. The assembly can also include a venting member for equalizing pressure in a chamber defined by the coupled components. One of the components can be made from aluminum. At least part of that component can be coated with a coating material that is nonconductive.

主权项

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.