cap rock


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Related to cap rock: reservoir rock, source rock

cap rock

[′kap ‚räk]
(geology)
An overlying, generally impervious layer or stratum of rock that overlies an oil- or gas-bearing rock.
Barren vein matter, or a pinch in a vein, supposed to overlie ore.
A hard layer of rock, usually sandstone, a short distance above a coal seam.
An impervious body of anhydrite and gypsum in a salt dome.
References in periodicals archive ?
There are countless, and even famous, examples of oil explorers and geologists finding all the right conditions for an oilfield only to discover, when the exploration well drill bit finally reaches the reservoir, that the oil was drained away due to a hole in the cap rock.
It is possible to shorten stemming heights for improved cap rock breakage.
AVO stands for "Amplitude Versus Offset" and exploits the angle of incidence dependent seismic wave behaviour at the interface of a cap rock and a potentially porous and hydrocarbon filled reservoir rock.
Jay, Mike, Jack and I negotiated the slippery cap rock, rounded a corner, and there he was.
The roads take in Joshua tree forests (some charred by the summer blazes), cactus gardens, two palm oases and such dramatic geologic formations as Skull Rock, Cap Rock and Jumbo Rocks.
In recent years, MRCSP has collected data about Ohio's geology and these studies indicate that the rock foundations around the Burger Plant include porous sandstone layers thousands of feet below the surface with very dense cap rock lying above -- conditions potentially well-suited for safely storing CO2 as the technology is developed.
The uppermost part of the carbonate cap rock complex consists of the most resistant lime- and dolostones of the Vao Formation belonging to the Lasnamagi and Uhaku regional stages.
ZAH605) RONALD LYON - CAP ROCK ENERGY CORPORATION (RKE).
A typical aquifer is topped with a 100-meter layer of cap rock, also called impermeable formation, that keeps liquids and gases trapped in the aquifer layer.
Take Cap Rock Telephone in Texas, which has been offering high-speed Internet access since 2001.
Sharyland Utilities also acquired Cap Rock Energy, an electric utility headquartered in Midland, Texas, in July 2010.