904.23 DRILLING PREPARATION IN WELLS DRILLED WITH ROTARY EQUIPMENT.
   The drilling preparation used in wells drilled with rotary equipment shall be capable of sealing off each oil, gas, brine or fresh water stratum above the producing horizon or objective formation and shall be capable of preventing blowouts and flows of salt or fresh water in accordance with good well drilling practices.
(Ord. 37-04. Passed 5-24-04.)