SYSTEM AND PROCESS FOR EXTRACTING OIL AND GAS BY HYDRAULIC FRACTURING
First Claim
1. A hydraulic fracturing system, comprisinga) an electric motor-driven pumping sub-system, configured to pump a pressurized fracturing fluid into at least one wellbore, under high pressure conditions sufficient to increase the downhole pressure of the wellbore, to exceed that of the fracture gradient of the solid matter surrounding the wellbore;
- andb) an electric power generation sub-system that provides energy to the pumping sub-system, comprising a multitude of electric motors that are powered by a single electrical feed source.
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Abstract
A fracturing system is described. The system includes an electric motor-driven pumping sub-system, configured to pump a pressurized fracturing fluid into at least one wellbore, under high pressure conditions sufficient to increase the downhole pressure of the wellbore, to exceed that of the fracture gradient of the solid matter surrounding the wellbore. The system also includes an electric power generation sub-system that provides energy to the pumping sub-system. The electric power generation sub-system includes a multitude of electric motors that are powered by a single electrical feed source. A related process for extracting hydrocarbons from a reservoir rock formation by the fracturing operation is also described.
295 Citations
16 Claims
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1. A hydraulic fracturing system, comprising
a) an electric motor-driven pumping sub-system, configured to pump a pressurized fracturing fluid into at least one wellbore, under high pressure conditions sufficient to increase the downhole pressure of the wellbore, to exceed that of the fracture gradient of the solid matter surrounding the wellbore; - and
b) an electric power generation sub-system that provides energy to the pumping sub-system, comprising a multitude of electric motors that are powered by a single electrical feed source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A process for extracting hydrocarbons from a reservoir rock formation by a hydraulic fracturing operation, comprising the step of introducing a hydraulic fracturing treatment fluid into a subterranean formation at a pressure sufficient to form or to enhance at least one fracture within the subterranean formation,
wherein the fracturing treatment fluid is pumped into at least one wellbore in the subterranean formation by an electric motor-driven pumping sub-system, configured to pump the fluid into the wellbore under high pressure conditions sufficient to increase the downhole pressure of the wellbore, to exceed that of the fracture gradient of the solid matter surrounding the wellbore; - and
wherein the pumping sub-system is energized by an electric power generation sub-system that provides energy to the pumping sub-system, and the power generation sub-system comprises a multitude of electric motors that are powered by a single electrical feed source. - View Dependent Claims (13, 14, 15, 16)
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Specification