Sealed modular downhole antenna
A sealed, modular downhole antenna 200 for measuring electrical characteristics of wellbore fluids and formations, includes a thin-walled curved metal tube 202, which houses coils of a length of conductive wire 208. The wire may be insulated by an insulating coating, as well as by a filler in the tu...
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| creator | KENNETH H. HAMLIN DENNIS P. CHESNUTT PAUL L. SINCLAIR |
| description | A sealed, modular downhole antenna 200 for measuring electrical characteristics of wellbore fluids and formations, includes a thin-walled curved metal tube 202, which houses coils of a length of conductive wire 208. The wire may be insulated by an insulating coating, as well as by a filler in the tube. The tube includes a coupling gap 204, to facilitate coupling electromagnetic energy through the tube, to and from the conductive wire. The tube also has a wall opening 206, for ends 208a, 208b of the wire to attach to an adapter-connector 210. The tube is coated with a sealant layer, to hermetically seal the tube, coupling gap, and junction between the adapter-connector and the tube. In alternative embodiments more than one tube may be provided to define a plurality of coupling gaps or the tube, adaptor-connector and sealant layer may be replaced by a moulded jacket around the coils. |
| format | Patent |
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SINCLAIR</creatorcontrib><description>A sealed, modular downhole antenna 200 for measuring electrical characteristics of wellbore fluids and formations, includes a thin-walled curved metal tube 202, which houses coils of a length of conductive wire 208. The wire may be insulated by an insulating coating, as well as by a filler in the tube. The tube includes a coupling gap 204, to facilitate coupling electromagnetic energy through the tube, to and from the conductive wire. The tube also has a wall opening 206, for ends 208a, 208b of the wire to attach to an adapter-connector 210. The tube is coated with a sealant layer, to hermetically seal the tube, coupling gap, and junction between the adapter-connector and the tube. In alternative embodiments more than one tube may be provided to define a plurality of coupling gaps or the tube, adaptor-connector and sealant layer may be replaced by a moulded jacket around the coils.</description><edition>6</edition><language>eng</language><subject>ANTENNAS, i.e. RADIO AERIALS ; BASIC ELECTRIC ELEMENTS ; DETECTING MASSES OR OBJECTS ; ELECTRICITY ; GEOPHYSICS ; GRAVITATIONAL MEASUREMENTS ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>1995</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=19951004&DB=EPODOC&CC=GB&NR=2288028A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25568,76551</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19951004&DB=EPODOC&CC=GB&NR=2288028A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KENNETH H. 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In alternative embodiments more than one tube may be provided to define a plurality of coupling gaps or the tube, adaptor-connector and sealant layer may be replaced by a moulded jacket around the coils.</description><subject>ANTENNAS, i.e. RADIO AERIALS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>DETECTING MASSES OR OBJECTS</subject><subject>ELECTRICITY</subject><subject>GEOPHYSICS</subject><subject>GRAVITATIONAL MEASUREMENTS</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1995</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJAPTk3MSU1RyM1PKc1JLFJIyS_Py8jPSVVIzCtJzctL5GFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8e5ORkYWFgZGFo7GhFUAAJwLJBU</recordid><startdate>19951004</startdate><enddate>19951004</enddate><creator>KENNETH H. HAMLIN</creator><creator>DENNIS P. CHESNUTT</creator><creator>PAUL L. SINCLAIR</creator><scope>EVB</scope></search><sort><creationdate>19951004</creationdate><title>Sealed modular downhole antenna</title><author>KENNETH H. HAMLIN ; DENNIS P. CHESNUTT ; PAUL L. SINCLAIR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2288028A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1995</creationdate><topic>ANTENNAS, i.e. RADIO AERIALS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>DETECTING MASSES OR OBJECTS</topic><topic>ELECTRICITY</topic><topic>GEOPHYSICS</topic><topic>GRAVITATIONAL MEASUREMENTS</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>KENNETH H. HAMLIN</creatorcontrib><creatorcontrib>DENNIS P. CHESNUTT</creatorcontrib><creatorcontrib>PAUL L. SINCLAIR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KENNETH H. HAMLIN</au><au>DENNIS P. CHESNUTT</au><au>PAUL L. SINCLAIR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Sealed modular downhole antenna</title><date>1995-10-04</date><risdate>1995</risdate><abstract>A sealed, modular downhole antenna 200 for measuring electrical characteristics of wellbore fluids and formations, includes a thin-walled curved metal tube 202, which houses coils of a length of conductive wire 208. The wire may be insulated by an insulating coating, as well as by a filler in the tube. The tube includes a coupling gap 204, to facilitate coupling electromagnetic energy through the tube, to and from the conductive wire. The tube also has a wall opening 206, for ends 208a, 208b of the wire to attach to an adapter-connector 210. The tube is coated with a sealant layer, to hermetically seal the tube, coupling gap, and junction between the adapter-connector and the tube. In alternative embodiments more than one tube may be provided to define a plurality of coupling gaps or the tube, adaptor-connector and sealant layer may be replaced by a moulded jacket around the coils.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETECTING MASSES OR OBJECTS ELECTRICITY GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| title | Sealed modular downhole antenna |
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