Frac Job

Definition - What does Frac Job mean?

Frac Job, also referred to as Hydraulic Fracturing, is a process used to fracture a tight and low permeable formation of rocks within the earth's surface by injecting a specially blended fluid into the wellbore at very high pressure. The frac job is carried out so as to enhance oil or gas production. It is also known as hydro-fracking, hydro-fracturing, fracking or fracing.

Petropedia explains Frac Job

In this technique, a blended liquid which is usually a mixture of water, sand granules, aluminum pellets, glass beds, and other proppants is pumped down with high pressure into the tight rock formation which produces cracks/fractures in the rock. When the pressure is released at the surface, the small grains of this fracking fluid hold the fractures partially open allowing the channels for hydrocarbons to flow through them into a producing well.

The pressure and injection rate can reach up to 100 Megapascal equivalent to 15000 psi and 265 liters per second. Generally this technique is more commonly used in horizontally drilled gas wells (Shale Foreplay).

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