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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
Is petroleum considered a rock?
No, petroleum is not considered a rock. It is a naturally occurring liquid found underground that is extracted and used as a source of energy. Petroleum is formed from the remains of ancient marine organisms over millions of years.
What are the geological components necessary to have a petroleum resource?
To have a petroleum resource, you need a source rock rich in organic material (such as algae or plankton), a reservoir rock with high porosity and permeability (like sandstone or limestone), and a seal rock above the reservoir to prevent oil and gas from escaping. Additionally, the presence of traps, such as anticlines or faults, is essential for the accumulation of oil and gas.
Explain why an anticline might be a good place to search for petroleum and natural gas?
An anticline is an upward-folded structure in rock layers that can trap petroleum and natural gas beneath impermeable layers. The shape of the anticline creates a favorable environment for the accumulation of hydrocarbons, making it a potential reservoir for oil and gas deposits. Drilling into an anticline can yield valuable resources due to this trapped formation.
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 is the best reservoir rock?
Sandstone is often considered the best reservoir rock due to its high porosity and permeability, allowing for the efficient storage and flow of hydrocarbons. Sandstone reservoirs can hold significant amounts of oil and gas, making them ideal for petroleum production.
What is the difference between primary and secondary migration of hydrocarbon?
Primary migration refers to the movement of hydrocarbons from the source rock into a reservoir rock due to pressure and buoyancy. Secondary migration, on the other hand, involves the movement of hydrocarbons within the reservoir rock, driven by factors like permeability and fluid flow.
What is petroleum migration?
Petroleum migration refers to the movement of liquid hydrocarbons (such as oil and gas) through porous rock layers underground. This process occurs due to differences in pressure and buoyancy within the Earth's crust, eventually leading the hydrocarbons to accumulate in reservoirs where they can be extracted.
Formula for transmissibility in Petroleum?
The transmissibility formula in petroleum engineering is given by T = kh/u, where T is the transmissibility, k is the permeability, h is the thickness of the reservoir, and u is the fluid viscosity. It represents the ease with which fluids can flow through the reservoir rock.
How are natural gas and petroleum removed from earths crust?
Natural gas and petroleum are removed from the Earth's crust through a process called drilling. Wells are drilled deep into the ground to reach the reservoirs where these resources are trapped. Once the well reaches the reservoir, the gas or oil can flow up to the surface through the wellbore.
What is an underground reservoir called?
An underground reservoir is called an aquifer. It is a natural underground layer of water-bearing rock or sediment that can be tapped for well water or springs.
What is the Role of reservoir geologist in petroleum industry?
A reservoir geologist in the petroleum industry studies the geology of subsurface rock formations to evaluate and predict the distribution and quality of oil and gas reservoirs. They use various geological data and models to assess the potential of reservoirs for exploration and production, helping in making informed decisions about drilling locations and extraction strategies. Their work is crucial in maximizing the recovery of hydrocarbons from a reservoir.
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.
