S.D. Admin. R. 74:29:11:13

Current through Register Vol. 51, page 67, December 16, 2024

Section 74:29:11:13 - Well construction requirements - Injection wells

The following construction requirements apply to injection wells and are in addition to the requirements listed in § 74:29:11:12:

(1) Appropriate logs and other tests shall be maintained and conducted during the drilling and construction of new injection wells. A descriptive report prepared by a knowledgeable log analyst interpreting the results of such logs and tests shall be submitted to the department. The logs and tests appropriate to each type of injection well shall be determined based on the intended function, depth, construction, and other characteristics of the well, availability of similar data in the area of the drilling site, and the need for additional information that may arise from time to time as the construction of the well progresses. Logs and tests shall include deviation checks on all holes to ensure that vertical avenues for fluid migration in the form of diverging holes are not created during drilling;

(2) All injection wells shall be constructed to prevent the migration of fluids to unauthorized zones. The casing and annular sealing material used in the construction of each newly drilled well shall be designed for the life expectancy of the well. In determining and specifying casing and annular sealing requirements, the following factors shall be considered:

(a) Depth to the deepest injection zone;

(b) Injection pressure, external pressure, internal pressure, axial loading, and related information;

(c) Hole size;

(d) Size and grade of all casing strings including well thickness, diameter, nominal weight, length, joint specification, and construction material;

(e) Corrosiveness of injected fluids and formation fluids;

(f) Lithology of injection zone and confining zone; and

(g) Type and grade of cement used to seal the annular space between the outer casing and the borehole.

S.D. Admin. R. 74:29:11:13

33 SDR 160, effective 4/17/2007; 34 SDR 323, effective 7/2/2008.

General Authority: SDCL 45-6B-81.

Law Implemented: SDCL 45-6B-41.