Method of installing a flexible riser
A method of installing a riser to provide a continuous flow path from a relatively rigid pipeline lying on the bottom of a body of water to an above water connection on an offshore apparatus is disclosed. The riser according to one aspect of the invention is a tubular flexible conduit and in a secon...
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| creator | LOCHRIDGE JOE COOPER |
| description | A method of installing a riser to provide a continuous flow path from a relatively rigid pipeline lying on the bottom of a body of water to an above water connection on an offshore apparatus is disclosed. The riser according to one aspect of the invention is a tubular flexible conduit and in a second aspect is a rigid member connected to the pipeline by a flexible section. The method of the invention for installing the riser uses available equipment, relatively small lifting forces and avoids the deformation of rigid pipe. In one particular embodiment, the pipeline-riser combination is laid on the bottom of the body of water and according to the method, the riser member is thereafter raised to a vertical orientation with respect to the offshore platform. The method provides a riser which does not undergo deformation at the bending zone wherein fluid flow changes between the horizontal and vertical directions. |
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The riser according to one aspect of the invention is a tubular flexible conduit and in a second aspect is a rigid member connected to the pipeline by a flexible section. The method of the invention for installing the riser uses available equipment, relatively small lifting forces and avoids the deformation of rigid pipe. In one particular embodiment, the pipeline-riser combination is laid on the bottom of the body of water and according to the method, the riser member is thereafter raised to a vertical orientation with respect to the offshore platform. The method provides a riser which does not undergo deformation at the bending zone wherein fluid flow changes between the horizontal and vertical directions.</description><language>eng</language><subject>BLASTING ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; ENGINEERING ELEMENTS AND UNITS ; FIXED CONSTRUCTIONS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; JOINTS OR FITTINGS FOR PIPES ; LIGHTING ; MEANS FOR THERMAL INSULATION IN GENERAL ; MECHANICAL ENGINEERING ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; PIPES ; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>1978</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=19780221&DB=EPODOC&CC=US&NR=4074541A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19780221&DB=EPODOC&CC=US&NR=4074541A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LOCHRIDGE; JOE COOPER</creatorcontrib><title>Method of installing a flexible riser</title><description>A method of installing a riser to provide a continuous flow path from a relatively rigid pipeline lying on the bottom of a body of water to an above water connection on an offshore apparatus is disclosed. The riser according to one aspect of the invention is a tubular flexible conduit and in a second aspect is a rigid member connected to the pipeline by a flexible section. The method of the invention for installing the riser uses available equipment, relatively small lifting forces and avoids the deformation of rigid pipe. In one particular embodiment, the pipeline-riser combination is laid on the bottom of the body of water and according to the method, the riser member is thereafter raised to a vertical orientation with respect to the offshore platform. The method provides a riser which does not undergo deformation at the bending zone wherein fluid flow changes between the horizontal and vertical directions.</description><subject>BLASTING</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>JOINTS OR FITTINGS FOR PIPES</subject><subject>LIGHTING</subject><subject>MEANS FOR THERMAL INSULATION IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>PIPES</subject><subject>SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1978</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFD1TS3JyE9RyE9TyMwrLknMycnMS1dIVEjLSa3ITMpJVSjKLE4t4mFgTUvMKU7lhdLcDPJuriHOHrqpBfnxqcUFicmpeakl8aHBJgbmJqYmho7GhFUAAJL8JkQ</recordid><startdate>19780221</startdate><enddate>19780221</enddate><creator>LOCHRIDGE; JOE COOPER</creator><scope>EVB</scope></search><sort><creationdate>19780221</creationdate><title>Method of installing a flexible riser</title><author>LOCHRIDGE; JOE COOPER</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4074541A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1978</creationdate><topic>BLASTING</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>JOINTS OR FITTINGS FOR PIPES</topic><topic>LIGHTING</topic><topic>MEANS FOR THERMAL INSULATION IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>PIPES</topic><topic>SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>LOCHRIDGE; JOE COOPER</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LOCHRIDGE; JOE COOPER</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method of installing a flexible riser</title><date>1978-02-21</date><risdate>1978</risdate><abstract>A method of installing a riser to provide a continuous flow path from a relatively rigid pipeline lying on the bottom of a body of water to an above water connection on an offshore apparatus is disclosed. The riser according to one aspect of the invention is a tubular flexible conduit and in a second aspect is a rigid member connected to the pipeline by a flexible section. The method of the invention for installing the riser uses available equipment, relatively small lifting forces and avoids the deformation of rigid pipe. In one particular embodiment, the pipeline-riser combination is laid on the bottom of the body of water and according to the method, the riser member is thereafter raised to a vertical orientation with respect to the offshore platform. The method provides a riser which does not undergo deformation at the bending zone wherein fluid flow changes between the horizontal and vertical directions.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS |
| title | Method of installing a flexible riser |
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