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What is considered to be the reservoir rock for natural petroleum?
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∙ 12y ago
limestone
Wiki User
∙ 12y ago
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Is shale considered an organic rock?
No i believe that Shale is considered a Clastic rock because it is made up of small pieces of other broken rocks.
How does petrolem form?
Hi there,Most Petroleum forms from the decay of sea borne micro organisms (MO) as apposed to coal which forms from the decay of Plant material.The organic matter is covered over with sediment within large sea basins. Over millions of years the material is compacted and through various amounts of heating and pressure the oil is liberated from the organic rich rock (source rock). The oil can travel 100's -1000's of kilometres from the source rock along faults and fractures. The oil is caught in trap sites within sandstone type rocks (host rock/ reservoir). An oil well is sunk to collect the oil from the trap site.Thats the basics.
How are igneous rocks that have high levels of quartz classified?
A rock is considered igneous if it formed directly from the cooling of molten rock.
Besides volcanos what other natural event changes earth's physical features?
Rock slides do!
What is travertine?
Travertine is a sedimentary rock. It is a natural chemical precipitate of carbonate minerals; typically Aragonite
What is petroleum migration?
Petroleum migration is the movement of hydrocarbons from a source rock to a reservoir rock in which the hydrocarbon is impede by traps
Is petroleum considered a rock?
Petroleum is not considered a rock. The definition of rock includes the word 'solid'.
What are the geological components necessary to have a petroleum resource?
Source rock; reservoir rock; cap rock
Petroleum and natural gas are most often mined from?
Permeable sedimentary rock
What is the difference between primary and secondary migration of hydrocarbon?
There are two types of migration when discussing the movement of petroleum, primary and secondary. Primary migration refers to the movement of hydrocarbons from source rock into reservoir rock and it is this type that the following discussion refers to. Secondary migration refers to the subsequent movement of hydrocarbons within reservoir rock; the oil and gas has left the source rock and has entered the reservoir rock. This occurs when petroleum is clearly identifiable as crude oil and gas although the gas may be dissolved in the oil. Buoyancy of the hydrocarbons occurs because of differences in densities of respective fluids and in response to differential pressures in reservoir rock.
What is the definition of Displacement efficiency in petroleum Engineering for oil reservoir?
The displacement efficiency refers to the fraction of the oil in place that is swept from a unit volume of the reservoir. Displacement efficiency is a function of fluid viscosities and the relative permeability characteristics of the reservoir rock (mobility ratio), of the “wettability” of the rock, and of pore geometry.
What do source rock and reservoir rock have in common?
both source rocks and reservoir rocks are highly porous. however, the permeabilty of a reservoir rock distinguishes it from a source rock.
What is in a petroleum trap?
Straight talk from the Oklahoma Oil Fields!Subsurface reservoir of shell oil and fuel (Petroleum trap) :Mixture of Water, Shell Oil or Crude and Natural Gas confined in porous rock like sandstone (Clastic). Natural Gas being the lightest occupies the top of the trap a layer of rock which prevents the upward escape of petroleum. Since Gas is lighter it moves upwards in the trap leaving a layer of oil and then water. Water has a greater density than oil leaving the oil layer to move up and water to move downwards in the trap.
What does asphalt mean?
Asphalt is a mixture of petroleum manufacturing by-products, natural hydrocarbons, gravel, and rock used for paving.
Why might an anticline be a good place to search for petroleum and natural gas?
An upward fold in a rock layer can, under certain circumstances, act as a trap for rising gases and petroleum.
Explain why an anticline might be a good place to search for petroleum and natural gas?
An upward fold in a rock layer can, under certain circumstances, act as a trap for rising gases and petroleum.
How are natural gas and petroleum removed from earths crust?
Via sealed boreholes drilled into the reservoir - permable rocks trapped below an inpervious, impermeable cap rock. Once the gas pressure in the reservoir falls too far for it to push the crude oil to the surface, water in pumped down a parallel well to displace the remaining iol up through the production well.One point - the oil is not in the crust. It is in sedimentary rock covering the crust.
