Ala. Admin. Code r. 400-5-6-.01 - Casing Requirements For Newly Drilled Wells

All wells drilled for the purpose of underground storage shall comply with the following requirements:

(1) All casing strings shall be centralized throughout the interval to be cemented. Casing and cementing programs shall comply with appropriate provisions of Rule 400-1-4-.09 or 400-2-4-.09, whichever is applicable except as specifically provided below;

(a) Surface casing shall be cemented with a minimum of one hundred fifty percent (150%) of the calculated annular volume to circulate cement to the surface;

(b) If the surface casing setting depth is below the lowermost USDW, the production casing shall be cemented with sufficient volume to fill the calculated annular space to a point five hundred (500) feet above the top of the storage reservoir, otherwise the casing string shall be cemented to the surface;

(c) All casing used in storage wells shall meet American Petroleum Institute standards for the pressures to be encountered and shall be new casing or reconditioned casing of new quality; and

(d) The top of cement and the degree of bonding of the cement used to anchor the production casing shall be verified by cement bond log, cement evaluation log or other logs approved by the Supervisor.

(2) All casing strings shall be tested in accordance with Rule 400-1-4-.09 or 400-2-4-.09, whichever is applicable.

(3) All tests and logs required by this section shall be prepared and supervised by a qualified engineer or geologist and a report of test results and copies of logs filed with the Board within thirty (30) days of date the log is run or the test conducted.

Author: State Oil And Gas Board

Notes

Ala. Admin. Code r. 400-5-6-.01

New Rule: Filed April 11, 2000; effective May 16, 2000.

Statutory Authority: Code of Ala. 1975, §§ 9-17-1 et seq.