What Is Fracking

What Is Fracking

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fracking_natural_gas_drillingFracking, or hydraulic fracturing, is the
process of extracting natural gas from shale rock layers deep within the
earth. Fracking makes it possible to produce natural gas extraction in
shale plays that were once unreachable with conventional technologies.
Recent advancements in drilling technology have led to new man-made
hydraulic fractures in shale plays that were once not available for
exploration. In fact, three dimensional imaging helps scientists determine
the precise locations for drilling.

Horizontal drilling (along with traditional vertical drilling) allows for
the injection of highly pressurized fracking fluids into the shale area.
This creates new channels within the rock from which natural gas is
extracted at higher than traditional rates. This drilling process can take
up to a month, while the drilling teams delve more than a mile into the
Earth’s surface. After which, the well is cased with cement to ensure
groundwater protection, and the shale is hydraulically fractured with water
and other fracking fluids.

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what is fracking

Hydraulic fracturing - Wikipedia, the free encyclopedia


** Hydraulic fracturing **

From Wikipedia, the free encyclopedia
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"Fracking" redirects here. For other uses, see Fracking (disambiguation).

Hydraulic fracturing
Schematic depiction of hydraulic fracturing for shale gas.
Process type Mechanical
Industrial sector(s) Mining
Main technologies or sub-processes Fluid pressure
Product(s) Natural gas
Inventor Floyd Farris; J.B. Clark (Stanolind Oil and Gas Corporation)
Year of invention 1947

*Hydraulic fracturing* is the fracturing of rock by a pressurized liquid.
Some hydraulic fractures form naturally—certain veins or dikes are
examples. *Induced hydraulic fracturing* or *hydrofracturing*, commonly
known as *fracking*, is a technique in which typically water is mixed with
sand and chemicals, and the mixture is injected at high pressure into a
wellbore to create fractures, which form conduits along which fluids such
as gas, petroleum, and groundwater may migrate to the well. The technique
is very common in wells for shale gas, tight gas, tight oil, and coal seam
gas.^[1]^[2] A different technique where only acid is injected is referred
to as acidizing.

The first experimental use of hydraulic fracturing was in 1947, and the
first commercially successful applications were in 1949. As of 2010, it was
estimated that 60% of all new oil and gas wells worldwide were being
hydraulically fractured.^[3] As of 2012, 2.5 million hydraulic fracturing
jobs have been performed on oil and gas wells worldwide, more than one
million of them in the United States.^[4]

Head of the frac pump

Proponents of hydraulic fracturing point to the economic benefits from the
vast amounts of formerly inaccessible hydrocarbons the process can
extract.^[5] Opponents point to potential environmental impacts, including
contamination of ground water, depletion of fresh water, risks to air
quality, the migration of gases and hydraulic

Source: en.wikipedia.org/wiki/Hydraulic_fracturing

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