High trip rate drilling rig

A drilling rig comprising:

• a top drive assembly vertically translatable along a mast of the drilling rig;
• a tubular delivery arm vertically translatable along the mast wherein the tubular delivery arm has a tubular clasp that is movable between a well center position over a well center and a second position forward of the well center position;
• a dolly translatably connected to the mast;
• a dolly arm rotatably and pivotally connected to the dolly at its upper end;
• a dolly tubular clasp pivotally connected to the arm at its lower end;
• an inclination actuator pivotally connected between the dolly arm and the dolly tubular clasp;
• a setback platform module comprising:
• a platform positioned beneath the fingerboard assembly;
• a platform alleyway beneath the fingerboard alleyway of the racking module;
• and
• a lower racking mechanism comprising:
• a base connected to the alleyway in translatable relation;
• a frame connected to the base in rotatable and pivotal relation;
• an arm pivotally connected to the frame;
• and,
• a clasp pivotally connected to the arm.

A method of moving tubular stands from a racked position on a setback platform and in a racking module to a drill string at the drill floor of a drilling rig, comprising the steps of:

• clasping a lower portion of a tubular stand resting on the setback platform with a lower racking mechanism;
• hoisting the tubular stand with an upper racking mechanism on a racking module connected to a mast of the drilling rig;
• moving the tubular stand towards a stand hand-off position with the upper racking mechanism;
• moving the clasped lower end of the tubular stand with the lower racking mechanism along a path coincident to movement of the tubular stand by the upper racking mechanism;
• positioning the tubular stand above a stand hand-off position located on the setback platform;
• lowering the tubular stand to rest at the stand hand-off position;
• engaging an upper portion of the tubular stand with an upper stand constraint;
• disengaging the upper racking mechanism and the lower racking mechanism from the tubular stand;
• engaging the upper portion of the tubular stand with a vertically translatable tubular delivery arm;
• disengaging the tubular stand from the upper stand constraint and a lower stand constraint;
• engaging a lower portion of the tubular stand with a lower stabilizing arm;
• hoisting the stand with the tubular delivery arm;
• and,
• stabbing the tubular stand into a drill string end extending above a rotary table on the drill floor.

A method of moving tubular stands from a racked position to a drill string at the drill floor of a drilling rig, comprising the steps of:

• transporting a tubular stand from a racked position in a fingerboard to a stand hand-off position with an upper racking mechanism on a racking module connected to a mast of the drilling rig;
• setting the tubular stand down at the stand hand-off position;
• transporting a tubular stand from the stand hand-off position to a well center position with a tubular delivery arm translatably connected to the drilling mast;
• stabbing the tubular stand into a stump of a drill string at the well center;
• connecting the tubular stand to the drill string;
• and,
• lowering the drill string with a top drive assembly translatably connected to the drilling mast.