Downhole power generation system
First Claim
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1. An apparatus for generating electrical power downhole comprising:
- a housing located in a drillstring;
a primary flow channel through the housing;
at least two secondary flow channels in the housing, the at least two secondary flow channels laterally displaced from the primary flow channel;
a first fluid driven electrical generator positioned within the primary flow channel;
at least one second fluid driven electrical generator positioned in each of the at least two secondary flow channels; and
at least one controllable flow diverter associated with each of the secondary flow channels, the at least one controllable flow diverter being operable to controllably apportion a fluid flow to the primary flow channel and to at least one of the at least two secondary flow channels to drive the generator therein.
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Abstract
An apparatus for generating electrical power downhole comprises a housing located in a drillstring. A primary flow channel is formed through the housing. At least two secondary flow channels are located in the housing and arc laterally displaced from the primary flow channel, A fluid driven electrical generator is positioned in each of the at least two secondary flow channels. A controllable flow diverter is associated with each of the secondary flow channels to controllably divert at least a portion of a fluid flow m the primary flow channel to at least one of the at least two secondary flow channels to drive the generator therein.
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Citations
15 Claims
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1. An apparatus for generating electrical power downhole comprising:
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a housing located in a drillstring; a primary flow channel through the housing; at least two secondary flow channels in the housing, the at least two secondary flow channels laterally displaced from the primary flow channel; a first fluid driven electrical generator positioned within the primary flow channel; at least one second fluid driven electrical generator positioned in each of the at least two secondary flow channels; and at least one controllable flow diverter associated with each of the secondary flow channels, the at least one controllable flow diverter being operable to controllably apportion a fluid flow to the primary flow channel and to at least one of the at least two secondary flow channels to drive the generator therein. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of generating electrical energy downhole comprising;
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positioning a housing located in a drillstring; forming a primary flow channel through the housing; forming at least two secondary flow channels in the housing, the at least two secondary flow channels laterally displaced from the primary flow channel; positioning a first fluid driven electrical generator positioned within the primary flow channel; positioning at least one second fluid driven electrical generator in each of the at least two secondary flow channels; and using at least one controllable flow diverter to controllably apportion fluid flow to the primary flow channel and to at least one of the at least two secondary flow channels to drive the second fluid driven electrical generator therein. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An apparatus for generating electrical power downhole comprising:
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a housing located in a drillstring; a primary flow channel through the housing; at least one secondary flow channels in the housing, the at least one secondary flow channel laterally displaced from the primary flow channel; a first fluid driven electrical generator positioned in the primary flow channel; at least one second fluid driven electrical generator positioned in the at least one secondary flow channel; and a controllable flow diverter to controllably apportion the fluid flow to the primary flow channel and the at least one secondary flow channel to drive the generators therein. - View Dependent Claims (14, 15)
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Specification