Systems and methods for determining depth-dependent drilling parameter limits

A system, comprising:

• a downhole tool;
• an autonomous drilling system;
• a controller in electrical communication with the downhole tool and the autonomous drilling system;
• at least one processor in electrical communication with the controller;
• memory in electronic communication with the at least one processor;
• and
• instructions stored in the memory, the instructions being executable by the at least one processor to:
• receive reference wellbore data including drilling parameter data for a plurality of drilling parameters of a reference wellbore;
• select a segmentation parameter set and associated segmentation parameter data from the reference wellbore data, wherein the segmentation parameter set is a first subset of one or more drilling parameters of the plurality of drilling parameters, and the segmentation parameter data is a subset of the drilling parameter data corresponding to the one or more drilling parameters of the segmentation parameter set;
• segment the reference wellbore data into a plurality of depth segments using a statistical segmentation model and based on the segmentation parameter data;
• generate a drilling parameter roadmap based on identifying a segment threshold for each drilling parameter of the reference wellbore data at each of the plurality of depth segments;
• cause the controller to perform a drilling operation via the autonomous drilling system to form a target wellbore at a measurement depth including adjusting, autonomously and without user input, a target drilling parameter to operate within an associated segment threshold of the drilling parameter roadmap at a depth segment corresponding to the measurement depth;
• cause the controller to drill the target wellbore via the autonomous drilling system according to the drilling parameter roadmap such that the target drilling parameter does not meet the associated segment threshold;
• update, via the controller and according to the drilling parameter roadmap, the target drilling parameter in real time during the drilling the target wellbore to generate an updated target drilling parameter;
• update, via the controller, the drilling parameter roadmap according to the updated target drilling parameter;
• and
• cause, via the controller, the autonomous drilling system to continue forming the target wellbore according to the updated drilling parameter roadmap.

A non-transitory computer-readable storage medium including instruction that, when executed by at least one processor in electrical communication with a controller, cause the at least one processor to:

• receive, via the controller in electrical communication with a downhole tool, reference wellbore data including drilling parameter data for a plurality of drilling parameters of one or more reference wellbores;
• select a segmentation parameter set and associated segmentation parameter data from the reference wellbore data, wherein the segmentation parameter set is a first subset of one or more drilling parameters of the plurality of drilling parameters, and the segmentation parameter data is a subset of the drilling parameter data corresponding to the one or more drilling parameters of the segmentation parameter set;
• segment the reference wellbore data into a plurality of depth segments using a statistical segmentation model and based on the segmentation parameter data;
• generate a drilling parameter roadmap based on identifying a segment threshold for each drilling parameter of the reference wellbore data at each of the plurality of depth segments;
• providing, to an autonomous drilling system deployed for a target wellbore and via the controller in communication with the autonomous drilling system, the drilling parameter roadmap for forming the target wellbore based on the segment thresholds for each drilling parameter of the plurality of drilling parameters;
• drilling the target wellbore via the autonomous drilling system according to the drilling parameter roadmap such that the plurality of drilling parameters does not meet the segment thresholds;
• updating, via the autonomous drilling system and according to the drilling parameter roadmap, a second subset of the one or more drilling parameters in real time during the drilling the target wellbore;
• updating the drilling parameter roadmap according to the second subset of the one or more drilling parameters to generate an updated drilling parameter roadmap;
• and
• continue drilling the target wellbore via the autonomous drilling system according to the updated drilling parameter roadmap.