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Oil Authority›Glossary›Z›zone

zone — Oil & Gas Glossary

A slab of reservoirrock bounded above and below by impermeable rock.

← All “Z” terms Browse full glossary

Related Terms

Z/A effect

The ratio of the electron density to the bulk density. The electron density is equal to the bulk density multiplied by 2

Zoeppritz equations

A set of equations that describes the partitioning of energy in a wavefield relative to its angle of incidence at a boun

zero crossing

The null point of a seismic trace. At zero deflection, the phase of a periodic signal is zero or pi.

zero zero gels

Gel strengths that are very low, with both values near zero, when measured at 10 seconds and 10 minutes according to sta

zero-offset data

Seismic data whose source and receiver share a common location. Stacking seismic data acquired with separated sources an

zero-offset vertical seismic profile

A conventional vertical seismic profile in which the energy source is positioned directly above the receivers, typically

zero-phase

Pertaining to seismic data whose wavelet is symmetrical about zero time. Deconvolution during seismic processing can con

zero-zero gels

Gel strengths that are very low, with both values near zero, when measured at 10 seconds and 10 minutes according to sta

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