Mark pearson studied mining engineering at the camborne school of mines uk where he received his bs degree and later a phd for his studies on the application of fracking to geothermal energy extraction. Natural gas is extracted by drilling into the ground and using water to move the gas to the surface.

Natural Gas Explained U S Energy Information Administration Eia

What are the methods used to obtain natural gas.

Methods of extracting natural gas. He has since worked in the oil and natural gas industry for over 35 years working projects all around the world. Extraction techniques are the key to the utilization of natural gas hydrate resources and have attracted attention worldwide. Technologies are available to help combat corrosion and protect vulnerable connection points.

New oil and gas extraction methods involve high pressures high temperatures and the release of sour gases that can promote corrosion in oil pipelines and their components. Methane ethane propane and butane are found in a vapor state under atmospheric conditions. Just as you drill for a water well on which one installs a bore hand pump for drawing water similarly oil gas is obtained by drilling holes in to earth at designated potential areas extracted accordingly.

The hydrocarbons associated with oil and natural gas extraction are generally thought to be of lower health risk than many of the contaminants found in or associated with oil and gas production. After the gas rises to the top it is necessary to separate it from other substances. It is achieved by using external cooling agents to cool the natural gas.

A demethanizer strips the oil of methane and lighter constituents and then a still separates the heavier ngls from the oil capturing most propane and nearly half the available ethane. Cryogenic expansion method the cryogenic expansion method is used to extract light natural gas liquids like ethane. Haight in encyclopedia of energy 2004.

The methods are still in the exploratory stage. At present no reliable methods for marine gas hydrate extraction are available although four extraction methods have been proposed for several decades. In cryogenic expansion the temperature of the natural gas is dropped through a turbo expander process which is the most common way.

Natural gas extraction involves using hydraulic pressure to make gas rise from deep wells to the surface. This process is energy intensive however and simple external refrigeration without the oil can provide similar extraction results.