DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS
A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber o...
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| creator | HARTOG, Arthur H COATES, Richard T MENKITI, Henry BRADFORD, Ian WILSON, Colin A MILLER, Douglas E BRADY, Dominic AUZERAIS, Francois M |
| description | A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation. |
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The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.</description><language>eng ; fre ; ger</language><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS ; DETECTING MASSES OR OBJECTS ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; GEOPHYSICS ; GRAVITATIONAL MEASUREMENTS ; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES ; MEASURING ; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; PHYSICS ; TARIFF METERING APPARATUS ; TESTING</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200715&DB=EPODOC&CC=EP&NR=2561382B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200715&DB=EPODOC&CC=EP&NR=2561382B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HARTOG, Arthur H</creatorcontrib><creatorcontrib>COATES, Richard T</creatorcontrib><creatorcontrib>MENKITI, Henry</creatorcontrib><creatorcontrib>BRADFORD, Ian</creatorcontrib><creatorcontrib>WILSON, Colin A</creatorcontrib><creatorcontrib>MILLER, Douglas E</creatorcontrib><creatorcontrib>BRADY, Dominic</creatorcontrib><creatorcontrib>AUZERAIS, Francois M</creatorcontrib><title>DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS</title><description>A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. 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A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.</description><subject>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</subject><subject>DETECTING MASSES OR OBJECTS</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GEOPHYSICS</subject><subject>GRAVITATIONAL MEASUREMENTS</subject><subject>MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES</subject><subject>MEASURING</subject><subject>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</subject><subject>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</subject><subject>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>PHYSICS</subject><subject>TARIFF METERING APPARATUS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHBycQ1xdQ7x9PdT8HdTCHb1DPb1dFYI9nT3c_QJVggN9vRzV3DzdHINUvAPCAHKuHgGhwR5OoWGuLoAVfsF-wcF8zCwpiXmFKfyQmluBgU31xBnD93Ugvz41OKCxOTUvNSSeNcAI1MzQ2MLIydDYyKUAAC5mCr4</recordid><startdate>20200715</startdate><enddate>20200715</enddate><creator>HARTOG, Arthur H</creator><creator>COATES, Richard T</creator><creator>MENKITI, Henry</creator><creator>BRADFORD, Ian</creator><creator>WILSON, Colin A</creator><creator>MILLER, Douglas E</creator><creator>BRADY, Dominic</creator><creator>AUZERAIS, Francois M</creator><scope>EVB</scope></search><sort><creationdate>20200715</creationdate><title>DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS</title><author>HARTOG, Arthur H ; COATES, Richard T ; MENKITI, Henry ; BRADFORD, Ian ; WILSON, Colin A ; MILLER, Douglas E ; BRADY, Dominic ; AUZERAIS, Francois M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2561382B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2020</creationdate><topic>ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS</topic><topic>DETECTING MASSES OR OBJECTS</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GEOPHYSICS</topic><topic>GRAVITATIONAL MEASUREMENTS</topic><topic>MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES</topic><topic>MEASURING</topic><topic>MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE</topic><topic>MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR</topic><topic>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>PHYSICS</topic><topic>TARIFF METERING APPARATUS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>HARTOG, Arthur H</creatorcontrib><creatorcontrib>COATES, Richard T</creatorcontrib><creatorcontrib>MENKITI, Henry</creatorcontrib><creatorcontrib>BRADFORD, Ian</creatorcontrib><creatorcontrib>WILSON, Colin A</creatorcontrib><creatorcontrib>MILLER, Douglas E</creatorcontrib><creatorcontrib>BRADY, Dominic</creatorcontrib><creatorcontrib>AUZERAIS, Francois M</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HARTOG, Arthur H</au><au>COATES, Richard T</au><au>MENKITI, Henry</au><au>BRADFORD, Ian</au><au>WILSON, Colin A</au><au>MILLER, Douglas E</au><au>BRADY, Dominic</au><au>AUZERAIS, Francois M</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS</title><date>2020-07-15</date><risdate>2020</risdate><abstract>A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS DETECTING MASSES OR OBJECTS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TARIFF METERING APPARATUS TESTING |
| title | DETECTION OF SEISMIC SIGNALS USING FIBER OPTIC DISTRIBUTED SENSORS |
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