312 IAC 29-28-4 - Establishment of external mechanical integrity for Class II wells
Authority: IC 14-10-2-4; IC 14-37-3
Affected: IC 14-37
Sec. 4.
(a) In
conjunction with the establishment of internal mechanical integrity for Class
II wells, the external mechanical integrity shall be evaluated by the division
to establish that underground sources of drinking water are protected from
upward migration of injection fluids.
(b) To establish external mechanical
integrity, all Class II wells shall be constructed in accordance with
312 IAC 29-20-7 through
312 IAC 29-20-9.
(c) If external mechanical integrity of a
Class II well drilled in accordance with
312 IAC 29-20-7 through
312 IAC 29-20-9 cannot be
demonstrated by cement records, the owner or operator may establish external
mechanical integrity through one (1) or more of the following methods:
(1) A temperature or noise log indicating top
of cement.
(2) A cement bond log
showing gamma ray, transit time, collar locator, and variable density
log.
(3) Advanced cement evaluation
logs.
(4) Radioactive tracer survey
indicating lack of fluid migration behind the casing.
(5) Oxygen-activation log indicating lack of
fluid migration behind the casing.
(6) Another method authorized by the division
upon a demonstration by the owner or operator that the test applies methods and
standards generally accepted in the petroleum industry that have been found
reliable for demonstrating external mechanical integrity.
Notes
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