Patent ID: 9267334
Filing Date: 2016-02-23
CPC Classification: E21B,F16L

Claim Text:
1. An isolator sub for use in a wellbore of a subterranean wellbore of a subterranean formation, the isolator sub comprising: a first rod comprising at least one first rod wall forming a first rod cavity, wherein the first rod further comprises a first coupling feature disposed at a first end; a second rod comprising at least one second rod wall forming a second rod cavity, wherein the second rod further comprises a second coupling feature disposed at a first end, wherein the second rod is electrically conductive; an isolator comprises an electrically non-conductive material, at least one isolator wall, a first complementary coupling feature, and a second complementary coupling feature, wherein the at least one isolator wall forms an isolator cavity, wherein the first coupling feature couples to the first complementary coupling feature, and wherein the second coupling feature couples to the second complementary coupling feature; and an outer housing disposed around and coupled to the first rod, the second rod, and the isolator, wherein the outer housing is electrically conductive and comprises at least one third coupling feature, wherein the at least one third coupling feature is configured to electrically couple to an electrical cable, wherein the isolator physically separates the first rod and the second rod, and wherein the isolator prevents direct electrical and physical communication between the first rod and the second rod.