Riser clamp

An apparatus, comprising:

• a riser for providing fluid communication between a well head at a seabed and a surface vessel;
• a riser clamp having an internal surface circumferentially engaging the riser, an external facing surface, and a pair of radially outward projecting flanges;
• a pipe saddle located between the radially outward projecting flanges and extending radially outward from the external facing surface, the pipe saddle having a first saddle recess spaced radially apart from the external facing surface and the riser;
• a first pipe extending parallel with the riser and abutting the first saddle recess;
• a first clamp securing the first pipe in the first saddle recess;
• and
• a tensioned band positioned circumferentially about the riser clamp and located on the external facing surface between the pipe saddle and one of the radially outward projecting flanges, whereby the tensioned band is circumferentially acting on the riser clamp to non-rotatably fix the riser clamp and the first pipe to the riser.

An apparatus, comprising:

• a riser clamp non-rotatably fixed to an external coated surface of a riser, the riser clamp having an internal surface substantially circumferentially engaging the external coated surface of the riser, an external facing surface, and a first flange and a second flange spaced apart and extending radially outward;
• a first pipe saddle extending radially outward from the external facing surface, the first pipe saddle having a first saddle recess spaced radially apart from the external facing surfance and the riser;
• a first pipe extending parallel with the riser and abutting the first saddle recess;
• and
• an orbital strap positioned circumferentially about the riser clamp and located on the external facing surface between the first pipe saddle and one of the first flange and the second flange, the orbital strap tensioned to secure the riser clamp to the riser, wherein an interface between the riser clamp and the orbital strap has a lower friction coefficient than an interface between the internal surface of the riser clamp and the riser.