Accessible downhole power assembly
First Claim
Patent Images
1. A downhole drill string component, comprising:
- a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid;
a power assembly that includes;
a battery cage disposed around and apart from the center mandrel, the battery cage including at least one bay formed therein; and
,at least one battery disposed in the at least one bay;
a sleeve configured to slidably cover said battery cage, said sleeve having an inner diameter; and
,a sleeve slide guide disposed around said center mandrel and adjacent to said battery cage, said sleeve slide guide having a first end having an outer diameter smaller than said inner diameter of said sleeve and a second end having an outer diameter greater than said inner diameter of said sleeve.
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Abstract
A drill string component includes a downhole power assembly and a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid. The downhole power assembly includes a tubular battery cage disposed around the center mandrel. At least one battery is disposed in at least one bay formed in the tubular battery cage and a tubular sleeve is adapted to slide over and cover the tubular battery cage.
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Citations
16 Claims
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1. A downhole drill string component, comprising:
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a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid; a power assembly that includes; a battery cage disposed around and apart from the center mandrel, the battery cage including at least one bay formed therein; and
,at least one battery disposed in the at least one bay; a sleeve configured to slidably cover said battery cage, said sleeve having an inner diameter; and
,a sleeve slide guide disposed around said center mandrel and adjacent to said battery cage, said sleeve slide guide having a first end having an outer diameter smaller than said inner diameter of said sleeve and a second end having an outer diameter greater than said inner diameter of said sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A downhole drill string component, comprising:
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a center mandrel with a through-bore adapted to accommodate a flow of drilling fluid; a power assembly that includes; a battery cage disposed around and apart from said center mandrel, said battery cage including at least one bay formed therein; at least one battery disposed in said at least one bay; and
,one mechanical retainer disposed in said at least one bay, said mechanical retainer including an extending pin disposed within a body of the mechanical retainer and a biased driving element, said biased driving element being configured to urge said extending pin to extend into said at least one bay; and
,a sleeve configured to slidably cover said battery cage, a sleeve slide guide disposed around said center mandrel and adjacent to said battery cage guide, said sleeve slide guide having a first end having an outer diameter smaller than an inner diameter of said sleeve and a second end having an outer diameter greater than said inner diameter of said sleeve. - View Dependent Claims (16)
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Specification