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Oil & gas

Terms concerning oil and gas as a fossil fuel and natural resource.

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Oil & gas > Oilfield

diversion

Oil & gas; Oilfield

A technique used in injection treatments, such as matrix stimulation, to ensure a uniform distribution of treatment fluid across the treatment interval. Injected fluids tend to ...

transmission tomography

Oil & gas; Oilfield

A technique used in crosswell seismic and electromagnetic tomography for recording the direct signal from the source or transmitter in one well to the receiver array in another ...

multiple salinity

Oil & gas; Oilfield

A technique used for the determination of the electrical properties of a shaly core sample. The sample is flushed with brines of different salinities, and the conductivity ...

slowness-time coherence

Oil & gas; Oilfield

A technique used for identifying and measuring the slowness and time of arrival of coherent acoustic energy propagating across an array of receivers. The different packets of ...

hydraulic fracture monitoring

Oil & gas; Oilfield

A technique to track the propagation of a hydraulic fracture as it advances through a formation. Microseisms are detected, located, and displayed in time for scientists and ...

bank firing

Oil & gas; Oilfield

A technique in which several perforating guns are run on a single trip into the well, and then all are fired simultaneously.

pulse-echo

Oil & gas; Oilfield

A technique in which an ultrasonic transducer, in transmit mode, emits a high-frequency acoustic pulse towards the borehole wall, where it is reflected back to the same transducer ...