Downhole fluid control processes

The invention provides a downhole process for the reduction of the permeability to water of a microporous subterranean formation which has average permeability of not greater than 10 Darcy, the process comprising applying to the formation a dispersion in non-aqueous liquid of water swellable, revers...

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Hauptverfasser:	FRAMPTON, HARRY
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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creator	FRAMPTON HARRY
description	The invention provides a downhole process for the reduction of the permeability to water of a microporous subterranean formation which has average permeability of not greater than 10 Darcy, the process comprising applying to the formation a dispersion in non-aqueous liquid of water swellable, reverse-phase polymerized, substantially spherical particles of absorbent polymer of which at least 90% by weight have a diameter less than 10 mu m whereby the dispersion of the substantially spherical particles of which at least 90% by weight have a size below 10 mu m is injected into the micropores of the subterranean formation and the particles are allowed to swell on contact with water and cause the reduction in permeability.
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CHEMISTRY ; DYES ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; POLISHES</subject><creationdate>1997</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=19971230&DB=EPODOC&CC=US&NR=5701955A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19971230&DB=EPODOC&CC=US&NR=5701955A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FRAMPTON; HARRY</creatorcontrib><title>Downhole fluid control processes</title><description>The invention provides a downhole process for the reduction of the permeability to water of a microporous subterranean formation which has average permeability of not greater than 10 Darcy, the process comprising applying to the formation a dispersion in non-aqueous liquid of water swellable, reverse-phase polymerized, substantially spherical particles of absorbent polymer of which at least 90% by weight have a diameter less than 10 mu m whereby the dispersion of the substantially spherical particles of which at least 90% by weight have a size below 10 mu m is injected into the micropores of the subterranean formation and the particles are allowed to swell on contact with water and cause the reduction in permeability.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>DYES</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>POLISHES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBwyS_Py8jPSVVIyynNTFFIzs8rKcrPUSgoyk9OLS5OLeZhYE1LzClO5YXS3Azybq4hzh66qQX58anFBYnJqXmpJfGhwabmBoaWpqaOxoRVAADpxyT9</recordid><startdate>19971230</startdate><enddate>19971230</enddate><creator>FRAMPTON; HARRY</creator><scope>EVB</scope></search><sort><creationdate>19971230</creationdate><title>Downhole fluid control processes</title><author>FRAMPTON; HARRY</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US5701955A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>DYES</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>POLISHES</topic><toplevel>online_resources</toplevel><creatorcontrib>FRAMPTON; HARRY</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FRAMPTON; HARRY</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Downhole fluid control processes</title><date>1997-12-30</date><risdate>1997</risdate><abstract>The invention provides a downhole process for the reduction of the permeability to water of a microporous subterranean formation which has average permeability of not greater than 10 Darcy, the process comprising applying to the formation a dispersion in non-aqueous liquid of water swellable, reverse-phase polymerized, substantially spherical particles of absorbent polymer of which at least 90% by weight have a diameter less than 10 mu m whereby the dispersion of the substantially spherical particles of which at least 90% by weight have a size below 10 mu m is injected into the micropores of the subterranean formation and the particles are allowed to swell on contact with water and cause the reduction in permeability.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
title	Downhole fluid control processes
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