Sentence examples for tight limestone from inspiring English sources

That looks like a bargain, given that 30 billion barrels of oil lie beneath, but the oil is molasses-thick and locked in very tight limestone formations.

To our knowledge, the effects of water shielding on the performance of SC-CO2 injection as a miscible process in tight limestone rocks has not been investigated before.

The static data obtained from the core samples (for mainly tight limestone, organic rich argillaceous limestone and shale) are correlated to the properties obtained from the log analysis.

The main objectives of this experimental study are to investigate the effects of CO2 injection in tight limestone reservoir rocks on porosity, absolute and relative permeability, oil water interfacial tension (IFT), reflective index, and reservoir water shielding phenomenon.

Two other tight limestone cores (called core 4 and core 5) were obtained from another well in the same field and used to study the effect of SC-CO2 floods on the relative permeability.

The tight oil generally refers to the oil resources that have experienced short distance transport and gathered in tight sandstone, tight limestone and tight carbonate reservoir layer, which is interbedded symbiosis with or close to the source bed, and the overburden pressure matrix permeability is less than or equal to 0.1 mD and reservoir porosity is less than 10%.

Farther in the southeast, the Swabian facies of the Upper Jurassic changes into the Helvetian facies, characterized by darker, very tight limestones with a significant amount of marls, developed under distal conditions (Meyer and Schmidt-Kaler [1996]).

These composite cores were used to investigate the effect of SC-CO2 on petrophysical properties of tight composite limestone reservoirs.

Oil recovery, permeability, porosity, and relative permeability were measured before and after the supercritical carbon dioxide (SC-CO2) flood to examine the effects of SC-CO2 flond on the variation in different oil and rock properties of tight composite limestone reservoir rocks.

The exploration focus in these lacustrine basins has been shifting toward individual, unconventional tight sandstones, limestones and dolomites, and recently to shale reservoirs to increase reserves and maintain production at current levels.

Shyeh-Yung (1991) stated that in tight water-wet limestone environment, water shielding is somewhat different from the water blocking phenomena in WAG floods.