Exploration & Geology

The Gamma Ray Log is a fundamental well logging measurement used in Exploration & Geology to record the natural radioactivity of subsurface rock formations. It…

Gas Saturation (often denoted as Sg) is a fundamental petrophysical property that quantifies the fraction of the pore volume within a reservoir rock that is…

Geophysics is the branch of Earth science that applies the principles of physics to study the physical properties and processes of the subsurface. In the…

Geostatistics is a branch of applied statistics that focuses on the analysis, modeling, and prediction of spatially correlated data. In the oil and gas industry,…

A horizon in petroleum geology and exploration refers to a distinct, mappable boundary or surface that separates different rock layers or stratigraphic units. It is…

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…

In the context of oil and gas exploration and geology, modeling refers to the creation of a simplified, mathematical, or visual representation of subsurface geological…

A mud log is a continuous, depth-synchronized record of geological, geochemical, and drilling parameters compiled in real-time during the drilling of a wellbore. It is…

The neutron log is a porosity-sensitive well log that measures the hydrogen concentration in subsurface formations. It is essential in oil and gas exploration and…

Oil saturation (commonly denoted as So) is a fundamental petrophysical property that quantifies the fraction of pore space within a reservoir rock that is occupied…

Pay Zone (also called productive interval or hydrocarbon-bearing zone) refers to a distinct layer or section of subsurface rock within a reservoir that contains sufficient…

Petrophysics is the branch of earth science that studies the physical and chemical properties of rocks and their interactions with fluids (oil, gas, and water).…