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Casing Tubes:
Coupled type casing tubes have a box thread at both ends and are connected together by a pin-to-pin coupling. This allows couplings to be replaced when pin threads become worn or damaged. It also means that the casing tube can have a thinner wall than the coupling, allowing the overall weight of casing string to be minimized. This can be important when drilling to greater depths.
Coupled type casing tubes have a box thread at both ends and are connected together by a pin-to-pin coupling. This allows couplings to be replaced when pin threads become worn or damaged. It also means that the casing tube can have a thinner wall than the coupling, allowing the overall weight of casing string to be minimized. This can be important when drilling to greater depths.
| Size | 73mm | 89mm | 108mm | 127mm | 146mm | 168mm |