Patent · US Active

Accessible downhole power assembly

US7980331B2 · kind B2 · utility

15Cited by

44References

16Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

David R. Hall · Provo, US
Paula Turner · Pleasant Grove, US
Nathan Nelson · Provo, US

Key dates

Filing date	Jan 23, 2009
Grant date	Jul 19, 2011
Priority date	—
Expiry date	Jan 23, 2029

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B41/0085
WIPO fieldCivil engineering
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.