Authority: IC 14-10-2-4; IC 14-37-3

Affected: IC 14-37

Sec. 8. (a) An owner or operator shall set and cement production casing according to the requirements of this section unless an alternate well construction method is authorized under section 10 of this rule.

(b) Except as provided in subsection (c), production casing shall be set at the bottom of the hole or at the top of the last stratum drilled unless the well is plugged back to a shallower formation. The production casing shall be circulated with cement from the setting depth to a level at least twenty-five (25) feet inside the next largest diameter cemented casing string.

(c) A well drilled for production from the either the Trenton formation or the Black River formation in the shallow Trenton limestone reservoir region may be completed without an additional string of production casing provided that surface casing meeting the requirements of section 6(f) of this rule has been set in the well. In the event that formations between the bottom of the surface casing string and the producing Trenton or Black River interval are water-bearing, the well may be constructed using one (1) of the following:

1. (1) With production casing run through an open hole packer set between the water-bearing interval and the producing interval.
2. (2) By isolation of the water-bearing interval by setting an additional casing string cemented with at least one hundred (100) feet of cement above the water-bearing interval.

(Natural Resources Commission; 312 IAC 29-20-8; filed Dec 1, 2017, 10:35 a.m.: 20171227-IR-312160230FRA; readopted filed Jan 17, 2023, 1:53 p.m.: 20230215-IR-312220328RFA)