Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2006-09-12
2006-09-12
Ryan, Patrick Joseph (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S127000, C429S164000, C429S178000
Reexamination Certificate
active
07105249
ABSTRACT:
A pressure-balanced battery for powering downhole-drilling components and a downhole telemetry network in a subterranean environment includes a battery and a housing enclosing and sealing a volume containing the battery. At least a portion of the housing is expandable and contractible to enable pressure encountered downhole to balance pressure internal to the housing. In this way, the thermal range of a battery's operation may be increased to function in a downhole environment. In selected embodiments, the housing is in operable communication with downhole fluids to transfer pressure to the battery. In selected embodiments, the battery is integrated into the annular structure of an existing downhole tool. In other embodiments, the battery may be integrated into a downhole tool specifically dedicated for use as a battery.
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Fox Joe R.
Hall David R.
Nelson Daniel P.
Parsons Thomas H.
Ryan Patrick Joseph
Wilde Tyson J.
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