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US 2017/0284181 A1Published application
Hydraulic fracturing system and method
AssigneeGas Technology Institute
InventorsJordan Ciezobka, Debotyam Maity
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Abstract
A hydraulic fracturing system and method for enhancing effective permeability of earth formations to increase hydrocarbon production, enhance operation efficiency by reducing fluid entry friction due to tortuosity and perforation, and to open perforations that are either unopened or not effective using traditional techniques, by varying a pump rate and/or a flow rate to a wellbore.
Claims14
A method of hydraulic fracturing stimulation comprising:
- pumping a fracturing fluid with a fracturing pump;
- injecting the fracturing fluid under pressure into a well at an initial flow rate to at least one of:
- open perforations, create a fracture and open natural fractures;
- changing the initial flow rate to a primary flow rate lower than the initial flow rate to introduce a change of flow rate into the well for a period of time;
- and
- changing the primary flow rate to a secondary flow rate to at least one of:
- initiate additional fractures, extend existing fractures, open additional perforations and further extend natural fractures.
4 more elements
A method of hydraulic fracturing stimulation comprising:
- pumping a fracturing fluid with a fracturing pump;
- injecting the fracturing fluid under pressure into a well at an initial flow rate to create a fracture;
- diverting a supply of fracturing fluid to change the initial flow rate to a primary flow rate lower than the initial flow rate to introduce a change of flow rate into the well for a period of time;
- and
- changing the primary flow rate to a secondary flow rate to at least one of:
- initiate additional fractures, extend existing fractures, open additional perforations and further extend natural fractures.
3 more elements
Dependencies are inferred from the claim text.