Hydraulic fracturing is the propagation of fractures through layers of rock using pressurized fracturing fluid. This technique is primarily used in the extraction of resources from low permeability reservoirs – such as shale gas, tight gas, CBM, and unconventional liquids – which are difficult to recover through regular drilling procedures. Hydraulic fracturing services are provided by oilfield service companies (such as Halliburton) to oil and gas companies (such as Shell).
Landscape image of a oil well pumpjack wiith an early morning golden sunrise and American USA red White and Blue background. A is the overground drive for a reciprocating piston pump in an well. - by James BO Insogna