Oilfield Glossary
Oilfield Glossary
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early time transient data

1. n. [Well Testing]
The data observed before the start of radial flow (middle-time transient data). When not dominated by wellbore storage, these data may reveal near-wellbore reservoir features including limited entry, hydraulic fracture and dual-porosity or layering effects. Downhole shut-in greatly improves the quality of the early-time transient data.