1. All of these are reasonably good reservoir rocks for oil and gas. 2. Oligocene clastic rocks can also act as reservoir rocks in distal fan facies. 3. Fly ash is a pollutant byproduct of natural gas reservoir rock . 4. It could be stored in saline reservoir rocks , coal seams and depleted oil and gas fields. 5. The identification of clay types is also useful for calculating the effective porosity of reservoir rock . 6. Take a beginners'class near Reservoir Rocks , where you'll learn basic safety, rope-handling skills, and top-roping techniques. 7. At, drilling sped up and the first bit samples showed free oil in dolomite, a good reservoir rock . 8. Glauconite can constitute a large percentage of the reservoir rock , and therefore the associated intra-particular pore space can be significant. 9. Stratigraphy is also commonly used to delineate the nature and extent of hydrocarbon-bearing reservoir rocks , seals, and traps of petroleum geology. 10. This larger, man-made fracture starts at the well and extends out into the reservoir rock for as much as several hundred feet.