OIL AND GAS EXPLORATION TECHNIQUES

Oil and gas exploration, or generally called as hydrocarbon explorations is the expression used by geologists to look for oil and gas. Drilling is expensive and as such hydrocarbon explorations are done to identify possible areas which contain these deposits while limiting price and reducing its effect on the environment.

Hydrocarbon Exploration

Prior to a drill location is recognized, geologists must evaluate the area and ensure that five factors are present - source rock, reservoir, migration, trap and seal or cap stone. As explorations are expensive and costly, these factors should be current before any drilling is done. Once the factors are considered, geologists employ several methods to ensure the achievement of this drilling. The first methodology entails geophysical survey or seismic survey.

Seismic survey is one of the popular methods that geologists use in determining if hydrocarbons exist particularly in warm water surveillance. The process uses sound to determine the level of the stone formations in the deep water. Many companies make use of vibrator trucks or small explosive charges on land and record the sound using a geophone.

Besides seismic surveys, geologists may also make use of offshore polls which entails the use of compressed air to make massive bubbles which burst upon hitting the surface region. The sound waves from the burst will subsequently travel under and reach the stones in which the vibrations are then recorded by hydrophones. As each rock generates different sound waves, geologists will also be able to identify the rock type that exists in the deep.

tucumann may also make use of magnetometers and gravimeters to measure the earth’s gravity pull at the surface whereas geochemical prospecting requires the measuring of pure gases utilizing high-tech devices.

Remote Sensing can also be among the techniques that geologists utilized to determine the structure of the exploration site. An aerial photo is done to map the surface area of the proposed website, revealing important details like the soil type, vegetation, minerals and other features.

In some specific cases where information is restricted, some gas and oil companies also perform a wildcat well especially in areas that are not explored before. The wells provide mining companies information on the site and whether oil or natural gas are all available.