Crude oil is a fossil fuel and, as the name implies, it is derived from fossils. Over time the remains of vegetation and various organisms, such as bacteria and algae, are covered by an increasing amount of soil before they are converted through heat and pressure into matter composed largely of hydrocarbons. This material, known as crude oil or petroleum, is the product of eons of this process.Continue Reading
Scientists believe most of the crude oil extracted today is generated from marine organisms, such as zooplankton and algae. They suspect larger animals may also be part of the mix.
Once these remains begin to change as a result of heat and pressure, they become what geologists refer to as kerogen, a waxy substance. With more heat, kerogen becomes liquid and gas hydrocarbons.
Crude oil hydrocarbons largely consist of cycloalkanes and alkanes, as well as oxygen, nitrogen, sulfur and copper, iron and nickel.
Geologists know where to locate oil reservoirs based on rock formation types. Such formations are characterized by deeply buried source rock containing hydrocarbon material, a permeable reservoir rock for it to gather in and a rock seal to keep the material from reaching the surface before it is extracted with drills and pumps.Learn more about Earth Science
Desertification is a complex issue with several primary causes, which are: overgrazing, removal of vegetation cover, excessive fuel wood collection, unsustainable farming practices and excessive tree felling. As desert locales are converted to farmlands to sustain large agricultural operations, overgrazing is increasingly problematic. Most factors contributing to deforestation are man-made, such as overgrazing, and threaten the lives of people and organisms in affected areas.Full Answer >
A petroleum landman is a person who acquires subsurface mineral rights for the purpose of exploring for oil and gas. A landman makes sure the company he works for ends up owning the minerals it finds underground.Full Answer >
The three main forms of fossil fuels are coal, oil and natural gas. These three are also known by different names, such as petroleum for oil, and each type of fossil fuels exists in a different chemical state.Full Answer >
Common health hazards associated with oil well fracking within the vicinity of the operation include accidental explosions, struck-by hazards, ingestion of contaminated water and overexposure to noxious chemicals that severely damage various organ systems in the body, which often result in infirmity and even death. Beyond the extraction site, oil well fracking also pose serious health concerns to the general public due to improper waste disposal and fracking-induced earthquakes.Full Answer >