Abstract: Oil country tubular goods and other types of tubular members are provided with integral joints having threaded connections. The integral joints may be flush type connections or swage type connections. The tubular members may be formed using electric resistant welding technology satisfactory for radial expansion within a wellbore. The threaded connections may be used to join sections of casing with each other to form a casing string to complete a wellbore.

Abstract: A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy may be installed within a wellbore and radially expanded during completion of the wellbore.

Abstract: Oil country tubular goods and other types of tubular members are provided with integral joints having threaded connections. The integral joints may be flush type connections or swage type connections. The tubular members may be formed using electric resistant welding technology satisfactory for radial expansion within a wellbore. The threaded connections may be used to join sections of casing with each other to form a casing string to complete a wellbore.

Abstract: The present invention involves a system and method for producing bimetallic pipe. In one embodiment of the present invention, the method includes inserting an inner shell into an outer shell and reducing the outer shell to securely engage the inner shell by drawing the outer shell and inner shell through a die without the use of a mandrel placed in the inner shell. In another embodiment of the present invention, the method includes inserting an inner shell into an outer shell and reducing the outer shell to securely engage the inner shell by sizing the outer shell using at least one roller stand.