Section R. 299.2393 - Periodic mechanical integrity testingRule 2393.
(1) A permittee shall provide for periodic tests by a qualified person to demonstrate internal and external mechanical integrity according to the following schedule unless a well has been granted temporary abandoned status under R 299.2437(3): MAXIMUM TESTING INTERVAL Well Type Internal Mechanical Integrity External Mechanical Integrity Hazardous Waste Disposal 12 months 12 months Nonhazardous Waste Disposal 12 months 60 months Processed Brine 60 months 60 months Artificial Brine 60 months 60 months Natural Brine When tubing is pulled.
Not Applicable Nonhydrocarbon Storage 12 months 12 months Test (Observation) As required by supervisor of mineral wells, R 299.2346 Not Applicable
(2) Internal mechanical integrity shall be demonstrated by a permittee as follows: (a) For a disposal well, by a pressure test of the annulus between the injection tubing and innermost casing string.(b) For an artificial brine or storage well, by a water-brine, oil-brine, or inert-gas-brine interface test.(c) For a natural brine production or test well used as an observation well, by a pressure test of the innermost casing string unless mechanical integrity has been demonstrated within the last year.(3) External mechanical integrity of a disposal well, artificial brine production well, or storage well shall be demonstrated by a permittee using a downhole log approved by the supervisor of mineral wells or authorized representative of the supervisor of mineral wells, intended to test for movement of fluid along the outside of the innermost casing string.(4) A satisfactory pressure test shall meet the requirements in R 299.2391(1).(5) A permittee shall provide a recording device to make record of the pressures measured during a mechanical integrity test.Mich. Admin. Code R. 299.2393