Petroleum/oil/gas/coal Archives

Rock-Eval Pyrolysis : A Technique in Petroleum Geology

1 Comment / GEO-ARTICLES, GEOCHEMISTRY ARTICLES, Petroleum/oil/gas/coal / opengeology

The Rock-Eval pyrolysis is a widely used geochemical technique in petroleum exploration and organic geochemistry. It provides valuable information on the quantity, type and thermal maturity of organic matter in sedimentary rocks, helping geologists asses hydrocarbon generation potential. Principles of Rock-Eval Pyrolysis Rock Eval pyrolysis involves heating a rock sample in an inert atmosphere and […]

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Gas Chromatography

GEO-ARTICLES, GEOCHEMISTRY ARTICLES, Petroleum/oil/gas/coal / opengeology

Gas Chromatography is a chromatographic technique used to separate volatile compounds and those which can vaporized by heat. If a mixture of compounds is analysed using GC system, each compound can be separated and quantified. It is useful and important because of following – Components of gas chromatography This is the overall main components of

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Oil Shale, Shale oil and Shale gas

GEO-ARTICLES, Petroleum/oil/gas/coal / opengeology

All the above terms may looks similar but are different. Let’s deep dive into them . Oil Shale Oil shale is a type of sedimentary rock that is rich in kerogen. Kerogen is a part of rock that breaks down and release hydrocarbon heated. Oil shale can be thought of as a precursor to oil

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Conventional vs Unconventional Oil and Gas

GEO-ARTICLES, Petroleum/oil/gas/coal / opengeology

There are several types of geological formations that trap naturally occurring energy resource. They are categorized as either ‘conventional’ or ‘unconventional’ resources. Conventional Unconventional Conventional oil and gas is trapped in naturally porous reservoir formations that are capped with impermeable rock strata. When intercepted by a well, oil and gas is able to move to

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Distillation of Petroleum / Biproducts

GEO-ARTICLES, Petroleum/oil/gas/coal / opengeology

In the distillation process, petroleum is separated into different molecular groups : C1– C4 Gas C5– C10 Gasoline C11– C13 Kerosine C14– C18 Diesel fuel (light gas oil) C19– C25 Heavy gas oil C26– C40 Lubricating oil > C40 Residuum Natural Gas : Natural gas usually consists mostly of methane (CH4) but may contain variable

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Composition of Petroleum/Oil/Hydrocarbon

GEO-ARTICLES, Petroleum/oil/gas/coal / opengeology

Petroleum and natural gas are mixtures of hydrocarbons. On average, they consist of 85% C, 13% H and 2% N,S and (all weight %). The main components of natural hydrocarbons belongs to three groups : Paraffins : or n-alkanes with general formula CnH2n-2. for n = 1 to 4 these are gases, from n =

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