Section R. 324.420 - Continuation of drilling; deepening operationsRule 420.
(1) A permittee of a well who desires to continue the drilling of a well below the permitted depth, but within the permitted stratigraphic or producing horizon where drilling completion has occurred, shall file an application for change of well status pursuant to R 324.511.(2) A permittee of a well who desires to deepen a well below the permitted stratigraphic or producing horizon where well completion has occurred shall file an application for a deepening permit pursuant to R 324.206(4).(3) A permittee of a well shall save samples of the drill cuttings and cores during the continuation of drilling or deepening operations pursuant to R 324.417.(4) A permittee of a well shall file records of the continuation of drilling or deepening operations with the supervisor pursuant to R 324.418, R 324.419, and R 324.511.Mich. Admin. Code R. 324.420