Patent ID: 11933158
Assignee: MOTIVE DRILLING TECHNOLOGIES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E  G

Claim 5:
6. A method for controlling drilling, the method comprising:
receiving, by a surface system coupled to a drilling rig during drilling of a second borehole relative to a previously-drilled first borehole, first historical information about the first borehole and second historical information about the second borehole;
receiving, by the surface system, from at least one magnetic sensor associated with a bottom hole assembly (BHA) located in the second borehole, a current spacing between the second borehole and the first borehole and a current position of the second borehole, wherein the first historical information and the second historical information comprises one or more of drilling speed, weight on bit, differential pressure, and toolface orientation;
generating, based on the received first historical information, the received second historical information, and the current position of the second borehole, a plurality of solution paths of the second borehole relative to the first borehole from the current position of the second borehole, each solution path comprising a cost value that varies asymmetrically so as to associate an asymmetrically higher cost with a solution path determined to be too close to the first borehole;
comparing the cost value of each solution path with a target value and identifying one solution path from the plurality of solution paths as a target path based on a minimum difference between the cost value and the target value compared to other solution paths;
generating an updated drilling trajectory with the target path;
sending, by the surface system, control information to a control system to control an operating function of the drilling rig to drill the second borehole according to the updated drilling trajectory with the target path; and
drilling a portion of the second borehole in accordance with the updated drilling trajectory with the target path.