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Title: Optical seismic sensor systems and methods

Patent ·
OSTI ID:1227952

Disclosed is an optical seismic sensor system for measuring seismic events in a geological formation, including a surface unit for generating and processing an optical signal, and a sensor device optically connected to the surface unit for receiving the optical signal over an optical conduit. The sensor device includes at least one sensor head for sensing a seismic disturbance from at least one direction during a deployment of the sensor device within a borehole of the geological formation. The sensor head includes a frame and a reference mass attached to the frame via at least one flexure, such that movement of the reference mass relative to the frame is constrained to a single predetermined path.

Research Organization:
Magi-Q Technologies, Inc., Somerville, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0002490
Assignee:
Magi-Q Technologies, Inc.
Patent Number(s):
9,207,339
Application Number:
13/748,289
OSTI ID:
1227952
Resource Relation:
Patent File Date: 2013 Jul 23
Country of Publication:
United States
Language:
English

References (8)

Absolute gravity inline measuring apparatus incorporating improved operating features patent September 1994
Differential interferometric ballistic gravity measurement apparatus and method patent April 1999
Fiber optic accelerometer sensor and a method of constructing same patent May 1999
Fiber optic seismic sensor patent May 2002
Gravity and differential gravity sensor, and system and method for monitoring reservoirs using same patent December 2003
Attitude sensor patent April 2006
Fiber optic seismic sensor based on MEMS cantilever patent March 2010
Methods and apparatus for borehole sensing including downhole tension sensing patent February 2011

Cited By (1)

Optical seismic sensor systems and methods patent December 2015