连续油管专业词典.docVIP

Abandon: To cease producing oil or gas from a well when it becomes unprofitable to produce. Accelerator: A chemical that reduces the setting time of a cement slurry. Accumulator Precharge: An initial nitrogen charge in an accumulator which is further compressed when the hydraulic fluid is pumped into the accumulator storing potential energy. Accumulator: A pressure vessel charged with nitrogen gas and used to store hydraulic fluid under pressure for operation of pressure control equipment. Acid Fracture: To open cracks in productive hard-limestone formations by using a combination of acid and oil or acid and water under high pressure. Acid Treatment: A method by which petroleum bearing formations are put into contact with an acid to enlarge the pore spaces and passages through which the reservoir fluids flow. Acre-foot: A unit of volume often used in reservoir analysis, equivalent to the volume of fluid necessary to cover one acre to a depth of one foot. Additive: A substance or compound added in small amounts to a larger volume of another substance to change some characteristic of the latter. Admix: to add one material to another by mixing. Alkali: any base or hydroxide having the following properties: (1) solubility in water, (2) the power of neutralizing acids, and (3) the property of altering the tint of many coloring matters. American Petroleum Institute: the leading standardizing organization on oil field drilling and producing equipment; abbreviated API. Anchor: Any device that secures of fastens equipment so it cannot move. Annular space: The space around a pipe in a wellbore, sometimes called the annulus, the outer wall of which may be the wall of either the casing or the hole. Annulus: (see annular space) API: (see American Petroleum Institute) AW Rod Thread: A parallel thread with three threads per inch (3 TPI) similar to the BW THREAD B.O.S.S.: Tool: Ball Operated Shear Sub, a ball operated hydraulic release tool. This tool is used to release the coiled