Tubular stand building control systems and methods

A computer system for controlling a stand-building process, the system comprising:

• one or more processors;
• and
• a memory system comprising one or more non-transitory, computer-readable media storing instructions that, when executed by the processor, cause the system to perform operations, the operations comprising:
• engaging a first tubular using an elevator;
• hoisting the first tubular by raising the elevator;
• lowering the first tubular into a spider by lowering the elevator;
• engaging the first tubular using the spider;
• disengaging the first tubular from the elevator after engaging the first tubular using the spider;
• engaging a second tubular using the elevator;
• hoisting and lowering the second tubular into engagement with the first tubular;
• connecting together the first and second tubulars;
• disengaging the spider from the first tubular after connecting together the first and second tubulars, wherein, at all times during the stand-building process, either an open/close control of the elevator is locked, or an open/close control of the spider is locked, or both are locked;
• and
• after completing the stand-building process:
• hoisting a completed stand, comprising at least the first and second tubulars, from engagement with the spider by raising the elevator;
• and
• engaging the completed stand using rig tubular handling equipment, automatically unlocking the open/close control of the elevator to allow opening of the elevator while the spider is open, and locking the open/close control of the elevator and the open/close control of the spider.