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Oilfield Glossary
Oilfield Glossary
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seep

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1. n. [Geology]

A naturally occurring, typically slow leakage of fluid—water, oil or gas—at the Earth’s surface. A seep results from migration of the fluid from its source or reservoir formation because the formation pressure exceeds the formation’s seal capacity such as during rapid loading of the overburden by sedimentation or during fluid expansion or from damage to the seal such as by faulting or tectonism.