S.D. Admin. R. 74:12:01:01

Current through Register Vol. 51, page 54, October 28, 2024

Section 74:12:01:01 - Definitions

Words defined in SDCL 45-9-2 have the same meaning when used in this article. In addition, terms used in this article mean:

(1) "Barrel," 42 United States gallons measured at 60 degrees Fahrenheit and atmospheric pressure at sea level;

(2) "Barrel of oil," 42 United States gallons of oil after deductions for the full amount of basic sediment, water, and other impurities present, ascertained by centrifugal or another recognized and customary test;

(3) "Bottom hole or subsurface pressure," the pressure in pounds per square inch gauge under conditions existing at or near the producing horizon;

(4) "Casinghead gas," any gas or vapor indigenous to and produced from a pool classified as an oil pool by the board;

(5) "Christmas tree fittings," an assembly of valves, spools, pressure gauges and chokes fitted to the wellhead of a completed well to control production;

(6) "Completion," for an oil well, the date that the first oil is produced through wellhead equipment into lease tanks from the ultimate producing interval after production casing has been run; for a gas well, the date a well is capable of producing gas through wellhead equipment from the ultimate producing zone after production casing has been run; for a dry hole, the date all provisions of plugging are complied with as set out in §§ 74:12:03:01 and 74:12:03:02;

(7) "Cubic foot of gas," the volume of gas contained in one cubic foot of space and computed at a pressure of 14.65 pounds per square inch absolute at a base temperature of 60 degrees Fahrenheit;

(8) "Directional well," a well bore that is intentionally deviated from vertical with an intentional azimuth;

(9) "Enhanced recovery," the injection of water, gas, air, steam, hydrocarbon miscible fluids, microemulsions, or other substances into a formation containing oil or gas for the purpose of stimulating the movement of the contained oil or gas toward production wells;

(10) "Freshwater resource," an underground source of water which contains fewer than 10,000 milligrams per liter of total dissolved solids or which supplies water for human consumption;

(11) "Gas-oil ratio," the ratio of the gas produced in cubic feet to the number of barrels of oil concurrently produced during any stated period;

(12) "Gas transportation facility," a pipeline in operation serving one or more gas wells for the transportation of gas or some other device or equipment in operation that can transport gas produced from gas wells connected with it;

(13) "Gas well," a well capable of producing gas from a common source of gas supply as determined by the board, excluding gas that cannot be sold for use;

(14) "Horizontal drilling," high-angle directional drilling of boreholes in excess of 80° from the vertical;

(15) "Horizontal well," a well drilled, completed, or recompleted in which the horizontal component of the completion interval in the producing formation exceeds the vertical component;

(16) "Injection or input well," a class II or oil and gas-related well used for the injection of any nonhazardous substance for the purpose of maintaining reservoir pressure, for enhanced recovery operations, for disposal of exploration and production waste, or for storage of hydrocarbons which are liquid at standard temperature and pressure;

(17) "Limiting gas-oil ratio," the gas-oil ratio assigned by the board to a particular oil pool to limit the volumes of casinghead gas, which may be produced from the various oil-producing units within the particular pool;

(18) "Log of well," a systematic, detailed, and correct record of formations encountered in the drilling of a well, including commercial electric and geophysical logs and similar records;

(19) "Mechanical integrity," the condition of a well that has no significant leak in the casing, tubing, or packer and where there is no fluid movement into a freshwater resource through vertical channels adjacent to the injection bore;

(20) "Offset well," a well drilled in a spacing unit adjacent to a spacing unit in which a discovery well has been drilled to further define the pool;

(21) "Oil well," a well capable of producing oil;

(22) "Operator," one or more authorized persons who are in charge of the development of a well or the operation of a producing property;

(23) "Pit," any excavation, used during oil and gas operations, including drilling, workover, production, or plugging operations, for the retention of drilling muds, additives, produced water, and other related fluids and solids;

(24) "Pressure maintenance," the injection of gas or other fluid into a reservoir, either to increase or maintain the existing pressure in the reservoir or to retard the natural decline in the reservoir pressure;

(25) "Produced water," water that is produced during operations of an oil or gas well;

(26) "Produced water handling facilities," a facility or container, such as a pit, tank, pool, or disposal well, whether covered or uncovered, used for the handling, storage, or disposal of produced water;

(27) "Recomplete," the subsequent completion of a well in a pool different from the pool in which it was originally completed;

(28) "Reservoir," a pool or common source of supply;

(29) "Secretary," the secretary of the South Dakota Department of Environment and Natural Resources;

(30) "Shut-in pressure," the pressure noted at the wellhead when the well is completely shut-in, not bottom hole pressure;

(31) "Shoe," a device attached to the bottom of the casing to allow the casing to pass obstructions in the well bore, protect the casing, and aid in bit reentry;

(32) "Spacing unit," the area in each pool within which a well may be drilled as authorized by rule or order;

(33) "Sidetrack," a secondary well bore drilled away from the original horizontal well; and

(34) "State geologist," the state geologist as described in SDCL 1-40-7.

S.D. Admin. R. 74:12:01:01

38 SDR 117, effective 1/12/2012.

General Authority: SDCL 45-9-11, 45-9-13.

Law Implemented: SDCL 45-9-2.

Definition of a hazardous substance, subdivision 74:52:01:01(22).