دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a tank or vessel through which liquids or gases are passed to ensure steady flow and to eliminate pressure surges.

a downhole tool that is used to create a sudden pressure decrease at a spot in the well.

n: a device employed with a packer or to clean open perforations by allowing surges of pressure to enter the perforations. Also called a surge disk.

n: a rapid increase in pressure downhole that occurs when the drill stem is lowered too fast or when the mud pump is brought up to speed after starting.

v: The downhole pressure increase abruptly caused by quick tripping or high starting rate of drill pump.

opening the well to flow against a significantly underbalanced fluid column. A perf cleaning technique.

a pressure higher than the hydrostatic column, below the BHA produced by rapid movement of pipe into the well. Maximized in cases with large diameter tools, high viscosity and high pipe speeds. May cause fracturing. Opposite of swabbing.

n: the clause in an oil and gas lease that specifies the procedure to be followed should the lessee wish to surrender all or part of his or her leased interests.

n: a business organization that is hired by an operator to measure a wells trajectory. The company takes complete surveys of the hole, usually either before or after setting a string of casing or upon completion of the hole. This type of surveying program is separate from, and independent of, the directional supervisors surveys.

a measure of the degree to which a rock can be magnetized. It is defined as the ratio (k) of the intensity of magnetization (I) to the magnetic field (H) projected into the rock.

temporarily discontinue operations.