دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a shale containing hydrocarbons that cannot be recovered by an ordinary oilwell but that can be extracted by mining and processing. The cost of mining and treatment of oil shale is generally too great to compete with the cost of oilwell drilling.

a mudrock or mudstone, composed of a large amount of kerogen or similar deposit, which will yield oil only when refined.

n: a drilling or workover fluid in which oil is the continuous phase and which contains from less than 2 percent and up to 5 percent water. This water is spread out, or dispersed, in the oil as small droplets. See invert emulsion mud. oil mud.

n: on an engine, a canister that has a relatively small amount of lubricating oil in the bottom and which filters air entering an engine. The running engine draws air through the cleaner, where the air passes through an element and over the oil bath. Dust and dirt particles in the intake air are removed by the element and by the oil bath.

n: the surface area overlying an oil reservoir or reservoirs. The term usually includes not only the surface area, but also the reservoir, the wells, and the production equipment.

n: a storm with a 1/100 probability of occurrence in any year. one-step grooving system n: a pattern of drum spooling in which the wire rope is controlled by grooves to move parallel to drum flanges for 70 to 80 percent of the circumference and then to cross over to start the next wrap.

n: a relatively small calibrated tank, open to the atmosphere. Often used to prove meters at loading racks. In use, the meter to be proved is set at zero and the prover tank is filled to a calibrated height while the meter registers the amount of liquid flowing d1rough it. When the tank is filled, the calibrated volume in it is compared to the volume the meter registered. If the meter is inaccurate, it is adjusted or a factor is used to compensate for the inaccuracy.

n: the procedure of recovering lost or stuck equipment in an uncased wellbore.

attempts to retrieve pipe of tools lost in the open hole.

n: the person or company. either proprietor or lessee. actually operating an oilwell or lease. generally the oil company that engages the drilling. service. and workover contractors. Compare unit operator.

n: the company that carries out an exploration or development programme on a particular area for which it holds a licence. The operator may hire a drilling contractor and various service companies to drill wells,and will provide a representative (company man

the company who makes the decisions and is responsible for drilling, completing, operating and repairing the well.

n: that rate of flow of fluid from a well that will provide maximum ultimate recovery of fluid from the reservoir.

n: an explanation of the origin of petroleum that holds that the hydrogen and the carbon that make up petroleum come from land and sea plants and animals. The theory further holds that more of this organic material comes from very tiny swamp and sea creatures than comes from larger land creatures.

the most widely accepted theory to explain the generation of hydrocarbons. As organic materials are buried, heat and pressure transform them into hydrocarbons over geologic time.