Horizontal single trip system with rotating jetting tool

A well completion tool assembly for gravel packing and stimulating a well comprising:

• a gravel packing assembly including a gravel packer;
• and
• a service tool assembly slidably disposed within an interior channel of the gravel
• packing assembly and capable of being removably coupled thereto, the service tool assembly including
• a crossover tool having a crossover tool aperture therein,
• an interior conduit between an annular bypass port into the interior channel located distal of the crossover tool aperture and an exterior port to an exterior of the service tool assembly located proximal of the crossover tool aperture, and
• an annular bypass closing mechanism for selectively opening and closing the annular bypass port, in which the service tool includes a rotating jetting tool connectable to a washpipe by a differential valve.

A method for completing a wellbore comprising the steps of:

• inserting into the wellbore a completion tool assembly comprising a gravel packing assembly comprising a gravel packer, and a service tool assembly slidably positioned substantially within an interior channel of the gravel packing assembly and comprising an interior channel therein;
• removably coupling the service tool assembly to the gravel packing assembly;
• setting the gravel packer;
• obstructing the interior channel with a first obstruction device;
• opening a first fluid flow path between the interior channel at a location proximal of the first obstruction device and an exterior of the well completion assembly at a location below of the gravel packer;
• gravel packing the wellbore with the completion tool assembly by pumping a slurry into an upper end of the interior channel and through the first fluid flow path;
• obstructing the first fluid flow path with a second obstruction device to prevent fluid flowing into the upper end of the interior channel from flowing through the first fluid flow path;
• opening a second fluid flow path between the interior channel at a location proximal of the second obstruction device and the interior channel at a location below the first obstruction device, and stimulating the well with the completion tool assembly by pumping a stimulating fluid into the proximal end of the interior channel, through the second fluid flow path, and through a through a pressure pulsating rotating jetting tool to produce a pulsating jet of stimulating fluid.