Hydrajet fracturing effectively stimulates low-permeability horizontal gas wells

Hydrajet fracturing, which can place multiple propped hydraulic fractures in precise locations, effectively stimulated two underperforming horizontal openhole gas wells in the low-permeability Cardium formation in west-central Alberta.Prior to this technology, the industry had few economic methods for controlling fracture placement in openhole, or uncemented cased-hole horizontal wellbores. Click here to enlarge imageHydrajet fracturing combines hydrajetting with hydraulic fracturing.1 Unlike other methods, this process avoids expensive and risky mechanical isolation or sealing techniques. It involves running a specialized jetting tool on conventional or coiled tubing. Then to initiate t...

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