Hydraulic fracturing is a well stimulation technique in which a liquid under high pressure fracturing a formation around wellbore. The process involves the high-pressure injection of ‘fracking fluid’ into a wellbore though special bottom hole assembly with packer at the end to create fractures into the formation. Through fracture the natural gas and oil flow more freely to the wellbore, therefore oil well produces more hydrocarbons after frac stimulation. When the hydraulic pressure drops, hydraulic fracturing proppant (either sand or aluminium oxide), holds the fracture open. Therefore, to withstand high pressure during frac job and prevent production casing of the well from damage, service companies use special highly durable packers for hydraulic fracturing.
Packers for hydraulic fracturing from OilPacker company is simple and the same time durable high pressure cased hole equipment of mechanical and hydromechanical axial set. Packers don’t require any rotation or any other manipulations for set or unset, but just axial movement of BHA with packer.
Release mechanism of the hydraulic fracturing packers is axial pulling force on string with packer until it is in free position. Cased hole packers for hydraulic fracturing is mono-bore single string downhole equipment with build-in equalisation bypass line for quick pressure stabilisation below and above packer. Packers multiuse equipment during single run. Straddled completion of packers is also available for staged frac.
