Drilling for both the oil and natural gas has been taken up by many oil drilling companies in this world and this has been primarily with an aim to satisfy the energy requirements of the world. Indeed many nations across the world have put on their concerted efforts with an idea to harness these two forms of energy the oil and natural gas which already have proved themselves to be the key players of the world economy. There are numerous oil wells and gas wells across the world and several best producing oil wells for sale are listed here.
The various oil exploring and drilling companies across the world have made use of the modern technology to develop new and faster methods to drill out the oil and natural gas from the reserves beneath the earth. It is generally found that whenever a drilling is underway to bring out the crude oil contained within the oil well or the oil block, natural gas in addition with many other gases emanate out of the well.
Over the centuries the natural gas that has been given out during the drilling procedure of the crude oil is termed as its byproduct. In the late 1800's when the use of this natural gas that came out along with the crude oil was not known, it was often regarded as a nuisance and it was considered as a hazard for the oil explorers. Hence it was disposed off quickly by means of burning it.
It was only in the later years that it was discovered that this gas could very well be put to use for domestic and industrial purposes. This led to the ultimate storage of the natural gas in the form of cylinders and wherever possible it was sent through pipelines directly to the homes and many other industries for various types of applications. Natural gas consists mainly of methane gas. It is this methane gas which is a hydrocarbon that gives the burning ability to the natural gas.
There is another name that is related to the natural gas and it is often referred to as the "casinghead gas". Another name that it is attributed to the natural gas is "associated gas". In the case of the drilling of oil wells the former methods that were used for digging the oil wells centuries before, was to hand dig the well which ultimately was stopped when the oil makes its appearance. This system of hand digging was actually being practiced in the oil fields of Azerbaijan, where it is claimed that the oil wells were dug for nearly hundreds of meters down the earth's crust to finally reveal the crude oil. But with the passage of time this practice has given way to the modern technological methods where drilling machines are being used, which dig wells that are several meters deep. Hence to drill out the oil and natural gas more successfully from the surface of the earth, new techniques like the horizontal drilling and a still newer method like Nitrogen drilling methods are being put to use by the oil drilling companies worldwide. (ArticlesBase SC #3929317)