South Dakota Administrative Rules › Title 74 - Department of Environment And Natural Resources › Article 74:12 - Oil and gas conservation › Chapter 74:12:01 - Definitions › Section 74:12:01:01 - Definitions

Current through Register Vol. 51, page 10, July 15, 2024
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.
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).