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Tight Gas

Definition

Tight gas is the name given to the unconventional natural gas because it is trapped in a very tight  underground hard rock, or sandstone or limestone formation that is unusually impermeable and non-porous called tight sand.

Comments

In a conventional natural gas deposit, once drilled, the gas can usually be extracted quite readily, and easily.

A great deal more effort has to be put into extracting gas from a tight formation.

Several techniques exist to extract tight gas, such as fracturing and acidizing.

However, these fracturing techniques are also very costly because tight gas need a lot of wells to develop it as the flow rates of individual wells are quite low.

Compared with shale gas, the tight gas requests a complex optimization of vertical drilling and horizontal drilling in combination with the fracturing operations.

As shale gas, the tight gas requires a lot of water which in some regions like Middle-East imposes to collect the waste water and to treat it.

 

For more information and data about oil and gas and petrochemical projects go to Project Smart Explorer

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