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C <br />Oil Exploration and Production Wastes Initiative Glossary of Terme <br />Class II Injection Well <br />A well that injects fluids brought up to the surface in conjunction with <br />production of oil, and natural gas (where applicable). Class II wells are <br />used for disposal or enhanced recovery <br />Downhole equipment <br />Equipment placed inside the casing and at the bottom of a producing well, <br />for the purpose of pumping and transporting the oil to the surface <br />Drilling Bit <br />The rotary cutting device connected to the end of the drilling pipe, and <br />used to cut through soil and rock during drilling <br />Drilling Rig <br />A multi-component structure used in drilling to stack drilling pipe; the drill <br />rig platform (or floor) is the place from where the drilling equipment is <br />operated <br />E&P Waste <br />Wastes produced by the oil and natural gas exploration and production <br />Enhanced Recovery <br />Process by which the oil production is stimulated by injection of water or <br />steam into the producing formation <br />Oil Exploration <br />Activities undertaken to identify geological formations that contain oil <br />Oil Production <br />Activities undertaken to extract (or produce) the crude oil from the ground, <br />and remove excess water and other unwanted materials <br />Oil Well <br />A wellbore that has been completed and ready to produce oil <br />Production Facility <br />Site where crude oil production takes place <br />Production Pit <br />As used in this report, production pit refers to pits found at production <br />facilities and used mainly for storage of sludge waste <br />Steamflood <br />Injection of steam for enhanced oil recovery <br />aterflood <br />Injection of produced water for enhanced oil recovery <br />Wellbore <br />The hole created by the drilling bit during drilling; if completed the wellbore <br />will become a well <br />Well casing <br />Hollow steel tubing placed inside the wellbore, to maintain the integrity of <br />the future well and house the production piping <br />Statewide Com liance Division May 2002 <br />MINE <br />