312 IAC 29-2-6
312 IAC 29-2-6 "Annulus" defined
Cite as Ind. Admin. Code tit. 312, r. 29-2-6
Sec. 6. "Annulus" means the space between:
(1) the well bore wall and a string of casing;
(2) two (2) strings of casing; or
(3) tubing and the innermost casing.