312 IAC 29-2-82
312 IAC 29-2-82 "Lost-circulation zone" defined
Cite as Ind. Admin. Code tit. 312, r. 29-2-82
Sec. 82. "Lost-circulation zone" means any zone that prevents or reduces the circulation of drilling fluid or a cement slurry back to the surface after being pumped into a well as a result of fluid loss into natural fissures, fractures, or strata of high permeability.