Geology formation in the oil fields Essay Example | Topics and Well Written Essays - 1000 words

Geology formation in the oil fields - Essay Example Crude oil is a product of pressure, organic matter from ancient living creatures and certain formation of the rocks in the strata. The porous and permeable rock reservoirs are the collection point of the hydrocarbon fuels. This is possible due the accumulation of these liquid oil and gases such as methane and shale gas. There are however some important factors that ensure the conditions are right for the formation of the crude oil. These factors include the existence of what are referred to as source rocks, reservoir rocks, traps and oil and gas seals. Each of the named features should definitely be present in order for the conditions to be optimal and to allow the proper formation of crude oil. Oil and naturally occurring gas come from certain types of rocks. These rocks are sedimentary in type and were deposited in water during the changing phases of the transformation of the Earth. These rocks are known as source rocks. Mineral fragments, remains of organic substrates, and moistur e. When this type of rocks experience a lot of pressure and heat from the compressing by other layers of rock. The term sedimentary comes from the characteristic of the rock to be formed from sediments, these include organic matter. The sedimentary rocks were usually deposited as soil or mud at the bottom of lakes and oceans. This excessive pressure forces the organic matter from the sedimentary rocks to start to be heated and when the right temperatures reach oil and gases are expelled from these rocks.