US Patent 10428592 Rig layout system

A system comprises a wellsite including a wellbore location and a BOP positioned at the wellbore location, a drilling rig in the wellsite and including a rig floor and at least one substructure, the substructure having a longitudinal axis, and a first access area defined as the area between a pair of lines extending parallel to the longitudinal axis of the substructure such that the BOP is between the lines, the first access area being free of equipment that is not in transit. The first access area may include a left access area on a first side of the rig, which area may be free of equipment that is not in transit. A method for drilling may include maintaining the left access area free of equipment during rig-up and may further include moving the rig within the wellsite while maintaining at least the left access area free of equipment.