Archives: Glossary Terms

In petroleum geology, migration refers to the movement of hydrocarbons (oil and natural gas) from their origin in a source rock to a reservoir rock…

Cap rock (also known as seal or top seal) is a low-permeability, often ductile rock unit that overlies a porous reservoir rock and prevents upward…

A source rock is a sedimentary rock rich in organic matter that, under the right conditions of heat and pressure over geological time, generates petroleum…

A trap is a geological configuration that allows significant quantities of petroleum (oil and natural gas) to accumulate and be retained in the subsurface. Without…

A core sample is a cylindrical section of rock or sediment extracted from the subsurface during drilling operations. It provides a direct, physical record of…

Well logging is a fundamental technique in petroleum exploration and geology that involves recording detailed measurements of rock and fluid properties within a borehole. These…

A Seismic Survey is a geophysical method used to image the subsurface of the Earth by generating controlled acoustic energy and recording the reflected or…