- Branża: Oil & gas
- Number of terms: 8814
- Number of blossaries: 0
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A gas-lift system that recycles the injected gas using compressors. This closed system does not require an external source of gas for operating the gas-lift system.
Industry:Oil & gas
A gas-lift system component that is assembled with the production tubing string to provide a means of locating gas-lift valves. The position or depth of the gas lift valves is crucial to the efficient operation of the entire system. Consequently, proper assembly of the gas lift mandrels within the completion tubulars is essential. A port in the gas-lift mandrel provides communication between the lift-gas supply in the tubing annulus and the production-tubing conduit.
Industry:Oil & gas
A gas well producing at a constant rate in which wellhead pressure changes no more than a small amount as a function of time. The actual amount of change permitted in a given time period to allow a well to be designated as stabilized may be fixed by law. Alternatively, the target stabilization for rigorous flow-after-flow testing in gas wells is pseudosteady-state flow, and this may be recognized as the pressure change versus time predicted from formation properties and drainage area size.
Industry:Oil & gas
A gas that can form acidic solutions when mixed with water. The most common acid gases are hydrogen sulfide (H<sub>2</sub>S) and carbon dioxide (CO<sub>2</sub>) gases. Both gases cause corrosion; hydrogen sulfide is extremely poisonous. Hydrogen sulfide and carbon dioxide gases are obtained after a sweetening process applied to a sour gas.
Industry:Oil & gas
A gas described by an equation of state of the form pV = znRT, where z is the gas deviation factor dependent on pressure, temperature and gas composition.
Industry:Oil & gas
A gas obtained by heating coal or refining heavy hydrocarbons. Synthetic natural gas is abbreviated SNG.
Industry:Oil & gas
A gas phase maintained above a liquid in a vessel to protect the liquid against air contamination, to reduce the hazard of detonation or to pressurize the liquid. The gas source is located outside the vessel.
Industry:Oil & gas
A gas defined by the fundamental equation of state, pV = nRT, where pressure, p, times volume, V, equals moles of gas, n, times gas constant, R, times temperature, T. The units are arbitrary and are accommodated by the value of the gas constant R, which is different for every set of units.
Industry:Oil & gas
A gas condensate with low condensate formation in the reservoir (when the bottomhole pressure is reduced below the dewpoint pressure).
Industry:Oil & gas
A gamma ray log from which the uranium contribution has been subtracted. In some rocks, and in particular in carbonate rocks, the contribution from uranium can be large and erratic, and can cause the carbonate to be mistaken for a shale. The carbonate gamma ray is then a better indicator of shaliness.
Industry:Oil & gas
