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

Affected: IC 14-37

Sec. 81. "Log" means a systematic, written or digital record that describes or depicts the properties of the strata and formations progressively encountered in a well bore. The term includes data recorded, which may depict, but is not necessarily limited to:

1. (1) electrical properties (resistivity and conductivity at various frequencies);
2. (2) sonic properties;
3. (3) active and passive nuclear measurements;
4. (4) dimensional measurements of the well bore;
5. (5) cementation of the well bore;
6. (6) the results of formation fluid sampling;
7. (7) formation pressure measurement, wireline-conveyed sidewall coring tools; and
8. (8) other well bore or formation characteristics.

(Natural Resources Commission; 312 IAC 29-2-81; filed Dec 1, 2017, 10:35 a.m.: 20171227-IR-312160230FRA; readopted filed Jan 17, 2023, 1:53 p.m.: 20230215-IR-312220328RFA)