Oilfield

Oilfield

Oilfield refers to a region with an abundance of oil wells extracting petroleum from below the ground.

Industry: Oil & gas

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Oilfield

Resistive invasion

Oil & gas; Oilfield

A situation in which the resistivity of the flushed zone is greater than the resistivity of the undisturbed zone. Such a setting generally favours the use of induction devices, which respond to ...

Stress-induced anisotropy

Oil & gas; Oilfield

A situation in which the formation shear-wave velocity varies azimuthally around the borehole, because unequal horizontal stresses in the formation have caused azimuthal variations in the stress ...

Impermeable barrier

Oil & gas; Oilfield

A single, impenetrable barrier to fluid flow in a reservoir that causes a change of a factor of two in the slope of buildup or drawdown curves. These are often observed in a normal test if the ...

Acoustic mode

Oil & gas; Oilfield

A situation in which acoustic energy that propagates in one direction is confined in the other two directions as, for example, a mode confined to an interface between two different materials or ...

A small fracturing treatment performed before the main hydraulic fracturing treatment to acquire critical job design and execution data and confirm the predicted response of the treatment interval. ...

Hydrostatic bailer

Oil & gas; Oilfield

A slickline tool generally used for the removal of sand or similar small particles around the fishing necks of downhole tools or equipment. The hydrostatic bailer incorporates a sealed atmospheric ...

Pulling tool

Oil & gas; Oilfield

A slickline or coiled tubing tool used to retrieve temporary devices, such as plugs and flow-control equipment, from the wellbore. Pulling tools are available in a range of sizes and profiles and ...