System and method for preventing collisions in wellbores

A system, comprising:

• one or more processors;
• a memory in electronic communication with the one or more processors;
• and
• instructions stored in the memory, the instructions being executable by the one or more processors to:
• receive a plurality of offset wellbore trajectories, each offset wellbore trajectory of the plurality of offset wellbore trajectories corresponding with an associated offset wellbore of a plurality of offset wellbores;
• generating a plurality of no-go zones using the plurality of offset wellbore trajectories;
• generating, for the subject wellbore, an escape zone using a closest point of each of the plurality of no-go zones to the subject wellbore;
• and
• steering a downhole tool stay within the escape zone.

A computer-readable storage medium including instruction that, when executed by at least one processor, cause the processor to:

• receive a plurality of offset wellbore trajectories, each offset wellbore trajectory of the plurality of offset wellbore trajectories corresponding with an associated offset wellbore of a plurality of offset wellbores;
• generating a plurality of no-go zones using the plurality of offset wellbore trajectories;
• generating, for the subject wellbore, an escape zone using a closest point of each of the plurality of no-go zones to the subject wellbore;
• and
• steering a downhole tool stay within the escape zone.