دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

an emergency shutdown device activated by fire or thermal overload. (Note: fusible links below the ignition point in a wellhead may not be activated (melted)).

n: a powdered resin coating that forms a skin over pipe when applied to its heated steel surface. Usually applied at the mill.

n: an agreement between partners in a joint-interest well to determine the share due each partner if the gas is sold to two or more markets. Stated another way, an agreement covering the manner in which volumes of deferred gas production or exchange gas will be balanced between the parties to the agreement.

n: a free-gas phase overlying an oil zone and occurring within the same producing formation as the oil. See associated gas, reservoir.

n: the free gas phase that is sometimes found overlying an oil zone and occurs within the same formation as the oil.

a zone of free gas above an oil deposit. The gas cap occurs where the oil is oversaturated with gas (past the solubility limit). When a gas cap is not present at discovery, the oil is above the bubble point.

n: a mutually negotiated set of rules governing conduct between the parties thereto relating to all matters of common interest.

n: a well through which produced gas is forced back into the reservoir to maintain formation pressure and bincrease the recovery factor.

gas lift valves where injection gas enters the valve and acts on the effective bellows area, overcoming the precharge in the valve and opening the valve (the retracting bellows lifts the needle off the seat) to allow gas lift gas flow from the gas filled

the process of cooling gas to -162oC, reducing its volume by 600 fold over the gas volume at standard conditions.

n pi: liquids recovered from natural gas in a gas processing plant and, in some situations, from field facilities. See natural gas liquids.

n: an agreement under which gas not sold under a percentage of proceeds contract belongs to the producer as it passes through the processing plant. Normal payment is a percentage of the products recovered;the seller retains title to the residue gas.