§ 13-1504. Casing.  


Latest version.
  • (a)

    The provisions of this section shall apply to all oil, gas, injection and disposal wells.

    (b)

    Suitable and sufficient surface casing or a stage collar shall be installed to a depth of at least one thousand two hundred (1,200) feet below the surface or a depth of two hundred (200) feet below treatable water strata encountered in the well, whichever is deeper, and the annular space behind the casing shall be filled with cement from the base of the surface casing, or from the stage collar, to the surface of the ground, by either pump and plug method or by the displacement method. No further drilling shall be accomplished until a cement bond log has been run, read and approved. No braden head cement job shall be performed between the surface casing and any other casing string except by special order of the Corporation Commission.

    (1)

    Production casing of a size not less than four and one-half (4½) inches outside diameter, in good condition, shall be set no higher than the top of the producing formation and cemented with a sufficient amount of cement to obtain a minimum of five hundred (500) feet of annular fillup about the producing zone.

    (c)

    Each casing string and blow-out preventer shall be tested before drilling the cement plug, at a minimum pressure of one thousand five hundred (1,500) pounds per square inch held for one (1) hour. Whenever the pressure drops five (5) percent within the hour, the casing will be deemed inadequate and shall be repaired and retested until the requirements hereof are met.

    (d)

    Permittee shall fill out a form provided by the Oil and Gas Inspector showing the results of the casing pressure test. The test results shall be filed with the Oil and Gas Inspector upon completion of such test. The Oil and Gas Inspector shall be notified in advance of the casing pressure test to enable him to be present if he so chooses.

    (e)

    Rupture in surface casing. In the event a rupture, break or opening occurs in the surface casing, the permittee or the operator or drilling contractor shall take immediate action to repair it, and shall report the incident to the Oil and Gas Inspector promptly.

(Ord. No. 0-8283-69; Ord. No. 0-9091-21; Ord. No. 0-1415-7, § 5)