Radially expandable tubular connection

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first seal surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon engagement thereof;
• and
• at least one groove formed on an outer surface of the box member axially proximate the external seal surface, the at least one groove shaped so that the box member radially deforms in a direction toward the pin member axially proximate the metal-to-metal seal upon radial plastic expansion of the pin and box members after engagement of the threads.

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first seal surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon radial plastic expansion of the pin and box members after engagement of the threads;
• and
• at least one groove formed on an inner surface of the box member, the at least one groove adapted so that the box member radially deforms in a direction toward the pin member proximate the seal surfaces after the radial plastic expansion.

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first seal surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon engagement thereof;
• and
• at least one pin groove formed on an outer surface of the pin member between a last engaged thread and a pin nose, the at least one pin groove adapted to reduce an amount of radially inward deformation of the pin member upon radial plastic expansion of the pin and box members after engagement of the threads.

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first sea surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon engagement thereof;
• and
• at least one substantially helical groove formed on an inner surface of the pin member, the substantially helical groove positioned at substantially a same axial position along the pin member as roots of the external thread, the at least one substantially helical groove adapted to reduce an amount of radially inward deformation of the pin member upon radial plastic expansion of the pin and box members after engagement of the threads.

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first seal surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon engagement thereof;
• and
• a plurality of circumferential pin grooves formed on an inner surface of the pin member, each of the plurality of substantially circumferential pin grooves positioned at substantially a same axial position along the pin member as a root of the external thread, the plurality of circumferential pin grooves adapted to reduce an amount of radially inward deformation of the pin member upon radial plastic expansion of the pin and box members after engagement of the threads.

A radially expandable tubular connection comprising:

• a box member comprising an internal thread and a first seal surface;
• a pin member comprising an external thread and a second seal surface, the external thread adapted to threadedly engage the internal thread and the first and second seal surfaces adapted to form a metal-to-metal seal upon engagement thereof;
• and
• at least one substantially helical groove formed proximate a root surface of the external thread, the at least one substantially helical groove adapted to reduce an amount of radial deformation of the external thread upon radial plastic expansion of the pin and box members after engagement of the threads.