Patent · US Active

Optical couplers used in a downhole splitter assembly

US10557963B2 · kind B2 · utility

1Cited by

2References

15Claims

0Family size

Assignee

WEATHERFORD TECHNOLOGY HOLDINGS, LLC · US

Inventors

Michael Lagace · Higganum, US
David Labella · Higganum, US
Domino Taverner · Bethany, US

Key dates

Filing date	May 10, 2016
Grant date	Feb 11, 2020
Priority date	—
Expiry date	Sep 5, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/36
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Techniques and apparatus are provided for downhole sensing using optical couplers in a downhole splitter assembly to split interrogating light signals into multiple optical sensing branches. Each optical branch may then be coupled to an optical sensor (e.g., a pass-through or an optical single-ended transducer (OSET)) or to another optical coupler for additional branching. The sensors may be pressure/temperature (P/T) type transducers. Some systems may exclusively use OSETs as the optical sensors. In this manner, if one of the OSETs is damaged, it does not affect light traveling to any of the other sensors, and sensing information from remaining sensors is still returned.

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