Oregon Administrative Rules › Chapter 632 - DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES › Division 10 - OIL AND GAS RULES › Section 632-010-0008 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
The definitions in ORS
				520.005 apply to this rule
				division. In addition, the following definitions apply:
(1) "Allowable Quantity" means the amount of
			 natural gas or oil allowed by order of the board to be produced within a stated
			 period.
(2) "Atmospheric Pressure"
			 means the pressure of air at sea level, equivalent to about 14.73 pounds per
			 square inch absolute.
(3) "Barrel"
			 means 42 U.S. gallons of oil at a temperature of 15.55 degrees Centigrade (60
			 degrees Fahrenheit), with deductions for the full percent of basic sediment,
			 water, and other impurities present, ascertained by centrifugal or other
			 recognized and customary tests.
(4)
			 "Blowout" means an uncontrolled escape of oil, natural gas, or water as a flow
			 from a well.
(5) "Blowout
			 Preventer" means a heavy casing-head control of special gates or rams that will
			 seal the annular space between drill pipe or tubing and casing or completely
			 close off the top of the inner casing string.
(6) "Board" means the Governing Board of the
			 State Department of Geology and Mineral Industries.
(7) "Bottom Hole Pressure" means the pressure
			 in pounds per square inch at or near the bottom of an oil or gas well
			 determined at the face of the producing horizon by means of a pressure
			 recording instrument, adopted and recognized by the oil and gas industry, and
			 corrected to the sea level elevation.
(8) "Casing Pressure" means the pressure in
			 the annular space between the tubing and casing measured at the
			 wellhead.
(9) "Completion" means a
			 well is in such condition that it is capable of producing oil or gas, or both.
(10) "Contaminate" means any
			 chemical, ion radionuclide, synthetic organic compound, microorganism, waste or
			 other substance that does not occur naturally in groundwater or that occurs
			 naturally but at a lower concentration.
(11) "Contamination" means introduction of
			 contaminate.
(12) "Decommission"
			 means the condition of a well when it has been lawfully and permanently plugged
			 and the well pad, access road and other related disturbance reclaimed to a
			 secondary beneficial use that is compatible with the land use designation
			 according to these rules with the approval of the department.
(13) "Department" means the State Department
			 of Geology and Mineral Industries.
(14) "Development" means any work performed
			 to bring about production of oil or gas, or both.
(15) "Developed Area or Developed Unit" means
			 a unit as defined in ORS
			 520.005(12)
			 having a well completed thereon capable of producing oil or gas in paying
			 quantities. However, in the event the board finds that a part of any unit is
			 nonproductive, then the developed area of the unit includes only the productive
			 part.
(16) "Differential Pressure"
			 means:
(a) In the case of wellhead
			 measurement, the difference between the tubing pressure and the casing
			 pressure; or
(b) In the case of an
			 orifice meter, the pressure difference between the upstream and the downstream
			 sides of the orifice, a pressure difference measured with a differential gauge
			 or with a manometer (U tube).