دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a warning device triggered by the presence of abnormal conditions in a machine or system. For example, a lowwater alarm automatically signals when the water level in a vessel falls below its preset minimum. Offshore, alarms are used to warn personnel of dangerous or unusual conditions, such as fires and escaping gases.

a trailer or other vehicle, designed for soft ground, often used as the staging platform for fighting well fires.

a vent in the tubing or treating string open by a drop bar used to fire a perforating gun.

n: a document by which the master of a ship acknowledges having received in good order and condition (or the reverse) certain specified goods consigned by a particular shipper, and binds himself or herself to deliver them in similar condition, unless the perils of the sea, fire, or enemies prevent it, to the consignees of the shippers at the point of destination on their paying the stipulated freight.

n: the discharge pipe from a wen being drilled by air drilling. The blooey line is used to conduct the air or gas used for circulation away from the rig to reduce the fire hazard as well as to transport the cuttings a suitable distance from the wen. See air drilling.

a device in a perforating gun that signals through a delayed shot or sound that the detonating cord has fired to the bottom of a gun.

an older perforating method where hardened steel bullets were fired from short barrels and designed to penetrate the casing, cement and formation.

n: a tubular device that, when lowered to a selected depth within a well, fires bullets through the casing to provide holes through which the formation fluids may enter the wellbore.

n: A kind of tubing device, tripped in to the predetermined depth, ejecting bullet and breaking through cement stone and casing to form a passage of oil and gas.

n pI: the devices loaded into perforating guns to penetrate casing and cement and for some distance into the formation when the guns are fired. See gunperforate.

n: a colourless, odourless gaseous compound of carbon and oxygen, A product of combustion and a filler for fire extinguishers, this heavier-than-air gas can collect in low-lying areas, where it may displace oxygen and present the hazard of anoxia.

a colorless gas. Corrosive when occurring with water. An acid gas. The most common cause of corrosion in the oil industry.