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header

1. n. [Geophysics]

The location, acquisition and processing parameters, and other pertinent information attached to a well log, seismic record and traces.

See: parameterseismic recordseismic sectionwell log

2. n. [Production Facilities]

In a gathering system, a pipe arrangement that connects flowlines from several wellheads into a single gathering line. A header has production and testing valves to control the flow of each well, thus directing the produced fluids to production or testing vessels. Individual gas/oil ratios and well production rates of oil, gas and water can be assigned by opening and closing selected valves in a header and using individual metering equipment or separators.

See: flowlinegathering linesgathering systemseparatorwellhead

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