312 IAC 29-20-11 - Use of centralizers
Authority: IC 14-10-2-4; IC 14-37-3
Affected: IC 14-37
Sec. 11.
(a) This
section establishes requirements for the use of centralizers in wells drilled
after the effective date of this article to ensure that the casing string is
centered in the well bore to provide for a uniform thickness of annulus cement
in critical areas of the well bore identified under subsection (c).
(b) An owner or operator shall place
centralizers at appropriate casing intervals according to generally accepted
industry standards.
(c) Critical
areas for purposes of this section include the following:
(1) Surface casing from setting depth to the
surface.
(2) Any casing type from
fifty (50) feet below to one hundred (100) feet above either of the following
if encountered in drilling a well through:
(A)
a commercially minable coal resource identified in accordance with
312 IAC 29-17-1 or
312 IAC 29-17-2; or
(B) any formation used for underground gas or
petroleum storage within an active underground gas or petroleum storage
facility.
(3) Any casing
type from fifty (50) feet below the lowermost underground source of drinking
water to the surface.
(4)
Production or intermediate casing to ten (10) feet above the surface casing
shoe.
(5) Production casing from
the shallower of:
(A) the setting depth;
or
(B) between fifty (50) feet
below to one hundred (100) feet above the uppermost interval in the well to be
used for production, disposal, or injection.
Notes
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