METHOD AND LIQUID FOR INCREASING THE RECOVERY FACTOR IN OIL RESERVOIRS
This invention deals with a method for increasing the recovery factor in oil reservoirs through the injection of polymerization precursor liquids with low viscosity for the production of biopolymers in situ. The method acts in conjunction in the injection profile correction and advanced oil recovery...
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| creator | DE MELO MARIE APARECIDA CASELLA RENATA DE COSTO NICOLAU HELTOR CESAR CORREIA DE SILVA IVONETE PEREIRA GONZALEZ VOLPON ANTONIA GARCIA TORRES |
| description | This invention deals with a method for increasing the recovery factor in oil reservoirs through the injection of polymerization precursor liquids with low viscosity for the production of biopolymers in situ. The method acts in conjunction in the injection profile correction and advanced oil recovery. The invention also refers to the composition of liquids that are precursors of polymerization with low viscosity and to the use of spores or specific bacterium for said purpose. A polymerization precursor liquid is injected into the reservoir which impregnates the rocky matrix. Afterwards, a continuous injection of a polymerizable liquid with additives of low viscosity is performed. The creation of a biopolymer occurs in situ, adhering itself to the rocky matrix, preferably in the thief zones, blocking said zones. A secondary effect is the liquid thickening that reduces the difference between the viscosity of the water and the viscosity of the oil and acts as a displacement liquid for the oil only in the productive zones. The method according to the present invention is suitable for reclaiming depleted reservoirs with negative pressure, and it is viable under onshore and offshore conditions. |
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The method acts in conjunction in the injection profile correction and advanced oil recovery. The invention also refers to the composition of liquids that are precursors of polymerization with low viscosity and to the use of spores or specific bacterium for said purpose. A polymerization precursor liquid is injected into the reservoir which impregnates the rocky matrix. Afterwards, a continuous injection of a polymerizable liquid with additives of low viscosity is performed. The creation of a biopolymer occurs in situ, adhering itself to the rocky matrix, preferably in the thief zones, blocking said zones. A secondary effect is the liquid thickening that reduces the difference between the viscosity of the water and the viscosity of the oil and acts as a displacement liquid for the oil only in the productive zones. The method according to the present invention is suitable for reclaiming depleted reservoirs with negative pressure, and it is viable under onshore and offshore conditions.</description><language>eng</language><subject>ADHESIVES ; CHEMISTRY ; DYES ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MINING ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; PAINTS ; POLISHES</subject><creationdate>2009</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=20090813&DB=EPODOC&CC=US&NR=2009200015A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20090813&DB=EPODOC&CC=US&NR=2009200015A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DE MELO MARIE APARECIDA</creatorcontrib><creatorcontrib>CASELLA RENATA DE COSTO</creatorcontrib><creatorcontrib>NICOLAU HELTOR CESAR CORREIA</creatorcontrib><creatorcontrib>DE SILVA IVONETE PEREIRA GONZALEZ</creatorcontrib><creatorcontrib>VOLPON ANTONIA GARCIA TORRES</creatorcontrib><title>METHOD AND LIQUID FOR INCREASING THE RECOVERY FACTOR IN OIL RESERVOIRS</title><description>This invention deals with a method for increasing the recovery factor in oil reservoirs through the injection of polymerization precursor liquids with low viscosity for the production of biopolymers in situ. The method acts in conjunction in the injection profile correction and advanced oil recovery. The invention also refers to the composition of liquids that are precursors of polymerization with low viscosity and to the use of spores or specific bacterium for said purpose. A polymerization precursor liquid is injected into the reservoir which impregnates the rocky matrix. Afterwards, a continuous injection of a polymerizable liquid with additives of low viscosity is performed. The creation of a biopolymer occurs in situ, adhering itself to the rocky matrix, preferably in the thief zones, blocking said zones. A secondary effect is the liquid thickening that reduces the difference between the viscosity of the water and the viscosity of the oil and acts as a displacement liquid for the oil only in the productive zones. The method according to the present invention is suitable for reclaiming depleted reservoirs with negative pressure, and it is viable under onshore and offshore conditions.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>DYES</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MINING</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>PAINTS</subject><subject>POLISHES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDzdQ3x8HdRcPRzUfDxDAz1dFFw8w9S8PRzDnJ1DPb0c1cI8XBVCHJ19g9zDYpUcHN0DgFLK_h7-gCFg12Dwvw9g4J5GFjTEnOKU3mhNDeDsptriLOHbmpBfnxqcUFicmpeakl8aLCRgYElEBsYmjoaGhOnCgBIqy0L</recordid><startdate>20090813</startdate><enddate>20090813</enddate><creator>DE MELO MARIE APARECIDA</creator><creator>CASELLA RENATA DE COSTO</creator><creator>NICOLAU HELTOR CESAR CORREIA</creator><creator>DE SILVA IVONETE PEREIRA GONZALEZ</creator><creator>VOLPON ANTONIA GARCIA TORRES</creator><scope>EVB</scope></search><sort><creationdate>20090813</creationdate><title>METHOD AND LIQUID FOR INCREASING THE RECOVERY FACTOR IN OIL RESERVOIRS</title><author>DE MELO MARIE APARECIDA ; CASELLA RENATA DE COSTO ; NICOLAU HELTOR CESAR CORREIA ; DE SILVA IVONETE PEREIRA GONZALEZ ; VOLPON ANTONIA GARCIA TORRES</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2009200015A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>DYES</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MINING</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>PAINTS</topic><topic>POLISHES</topic><toplevel>online_resources</toplevel><creatorcontrib>DE MELO MARIE APARECIDA</creatorcontrib><creatorcontrib>CASELLA RENATA DE COSTO</creatorcontrib><creatorcontrib>NICOLAU HELTOR CESAR CORREIA</creatorcontrib><creatorcontrib>DE SILVA IVONETE PEREIRA GONZALEZ</creatorcontrib><creatorcontrib>VOLPON ANTONIA GARCIA TORRES</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DE MELO MARIE APARECIDA</au><au>CASELLA RENATA DE COSTO</au><au>NICOLAU HELTOR CESAR CORREIA</au><au>DE SILVA IVONETE PEREIRA GONZALEZ</au><au>VOLPON ANTONIA GARCIA TORRES</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND LIQUID FOR INCREASING THE RECOVERY FACTOR IN OIL RESERVOIRS</title><date>2009-08-13</date><risdate>2009</risdate><abstract>This invention deals with a method for increasing the recovery factor in oil reservoirs through the injection of polymerization precursor liquids with low viscosity for the production of biopolymers in situ. The method acts in conjunction in the injection profile correction and advanced oil recovery. The invention also refers to the composition of liquids that are precursors of polymerization with low viscosity and to the use of spores or specific bacterium for said purpose. A polymerization precursor liquid is injected into the reservoir which impregnates the rocky matrix. Afterwards, a continuous injection of a polymerizable liquid with additives of low viscosity is performed. The creation of a biopolymer occurs in situ, adhering itself to the rocky matrix, preferably in the thief zones, blocking said zones. A secondary effect is the liquid thickening that reduces the difference between the viscosity of the water and the viscosity of the oil and acts as a displacement liquid for the oil only in the productive zones. The method according to the present invention is suitable for reclaiming depleted reservoirs with negative pressure, and it is viable under onshore and offshore conditions.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY DYES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MINING MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PAINTS POLISHES |
| title | METHOD AND LIQUID FOR INCREASING THE RECOVERY FACTOR IN OIL RESERVOIRS |
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