Apparatus for detecting a magnetic anomaly contiguous to remote location by SQUID gradiometer and magnetometer systems

Patent · Tue Mar 13 00:00:00 EST 1984

OSTI ID:6779995

Overton, Jr, W C; Steyert, Jr, W A

A superconducting quantum interference device (SQUID) magnetic detection apparatus detects magnetic fields, signals, and anomalies at remote locations. Two remotely rotatable SQUID gradiometers may be housed in a cryogenic environment to search for and locate unambiguously magnetic anomalies. The SQUID magnetic detection apparatus can be used to determine the azimuth of a hydrofracture by first flooding the hydrofracture with a ferrofluid to create an artificial magnetic anomaly therein.

• Assignee: Dept. of Energy
• Patent Number(s): US 4437064
• OSTI ID: 6779995
• Resource Relation: Patent File Date: Filed date 22 May 1981; Other Information: PAT-APPL-266247
• Country of Publication: United States
• Language: English

Related Subjects

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HOT-DRY-ROCK SYSTEMS
HYDRAULIC FRACTURING
HYDRAULIC FRACTURES
MAPPING
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DESIGN
WELL LOGGING
AZIMUTH
BOREHOLES
CRYOGENICS
FRACTURING FLUIDS
MAGNETIC FIELDS
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ELECTRONIC EQUIPMENT
ENERGY SYSTEMS
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FLUXMETERS
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MICROWAVE EQUIPMENT
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