Patent · US Active

Sensor for determining downhole parameters and methods for using same

US8776878B2 · kind B2 · utility

4Cited by

31References

3Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Richard Bloemenkamp · Montrouge, FR
Andrew Hayman · Voisins-le-Bretonneux, FR

Key dates

Filing date	Nov 15, 2010
Grant date	Jul 15, 2014
Priority date	—
Expiry date	May 16, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01V3/24
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system and method for determining a downhole parameter includes a downhole tool having a sensor. The sensor includes a pad having insulation, and return(s) positionable in the insulation. The return(s) are adapted to exchange a current with a power source, and a portion of the return(s) may be in a fluid zone. The sensor includes a mud button positionable within the fluid zone and in the insulation a distance from the return(s). The mud button are suitable for exchanging current with the return(s). The mud button and the fluid zone are positioned a distance from the formation such that a majority of the current passing between the return(s) and the mud button passes through the downhole fluid. The current exchanged with the mud button generates a measurement of the downhole fluid.

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