Seismic refraction data is collected from geophones that record the arrival of energy sent through the shallow subsurface by sledgehammer blows at the surface. Alec Spears (left) and Troy Covill were ...

The oil and gas in the Palaeogene lacustrine carbonate rock reservoirs in the Bohai Sea accumulated during several periods. The reservoir porosity formed during each period affected the degree of ...

There are three types of rock found on Earth. These are igneous, metamorphic and sedimentary. Each rock type is formed in a different way. For example, the rock malachite is mostly made of the ...

A proposed technique determines the hydrocarbon recovery factor and mobility from resistivity logs. This technique provides the petrophysicist with the following benefits: In the early stage of a well ...