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公开(公告)号:CA2802799A1
公开(公告)日:2012-02-16
申请号:CA2802799
申请日:2011-06-09
Applicant: CONOCOPHILLIPS COMPANY IP SERVICES GROUP , UNIV KANSAS
Inventor: GUAN HUILI , BERKLAND CORY , MORADI-ARAGHI AHMAD , LIANG JENN-TAI , ZORNES DAVID R , NEEDHAM RILEY B , HEDGES JAMES H , CHENG MIN , JOHNSON JAMES P , SCULLY FAYE L
Abstract: The invention is directed to delayed gelation agents comprising a degradable polymeric cage containing therein one or more gelation agents. The cage degrades in situ, e.g, in an oil reservoir, thus releasing the gelation agent(s), which can then crosslink second polymers in situ to form a gel.
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公开(公告)号:CA2758391A1
公开(公告)日:2010-12-23
申请号:CA2758391
申请日:2010-06-14
Applicant: CONOCOPHILLIPS COMPANY IP SERVICES GROUP , UNIV KANSAS
Inventor: MORADIARAGHI AHMAD , HEDGES JAMES HERBERT , ZORNES DAVID RUSSELL , NEEDHAM RILEY BYRAN , GUAN HUILI , LIANG JENN-TAI , BERKLAND CORY , JOHNSON JAMES PRYOR , CHENG MIN , SCULLY FAYE LYNN
Abstract: The invention is directed to long lasting crosslinked water-soluble swellable polymers, methods for making same, and their uses. More particularly, the invention relates to a composition comprising expandable polymeric particles having cationic sites as well as labile crosslinkers and stable crosslinkers, said particle mixed with a fluid. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric particles are injected into a target zones in the reservoirs and when the heat and/or pH of the reservoir cause degradation of the labile crosslinker and when the particle expands, the cationic sites in the polymer adsorb to the rock in the formation, thus diverting water to lower permeability regions and improving oil recovery. However, many other uses are possible.
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公开(公告)号:MX2011013343A
公开(公告)日:2012-04-30
申请号:MX2011013343
申请日:2010-06-09
Applicant: CONOCOPHILLIPS COMPANY IP SERVICES GROUP
Inventor: ZORNES DAVID RUSSELL , MORADIARAGHI AHMAD , HEDGES JAMES HERBERT , NEEDHAM RILEY BYRAN , GUAN HUILI , LIANG JENN-TAI , BERKLAND CORY , CHENG MIN , SCULLY FAYE LYNN
Abstract: La invención está dirigida a polímeros expandibles solubles en agua entrelazados estables y métodos para hacer los mismos. De modo más particular la invención se refiere a una composición que comprende partículas poliméricas expandibles que tienen sitios aniónicos y entrelazadores lábiles y entrelazadores estables, la partícula mezclada con un fluido y un entrelazador catiónico que es capaz de entrelazar de manera adicional la partícula a la degradación del entrelazador lábil y la exposición de los sitios aniónicos para formar un gel. Un uso particularmente importante es como un fluido de inyección en la producción de petróleo, en donde las partículas poliméricas expandibles son inyectadas dentro de la zona de objetivo y cuando el calor y/o el pH adecuado de la zona de objetivo ocasionan la degradación del entrelazador lábil y la partícula se expande, el entrelazador catiónico entrelaza el polímero para formar un gel, derivando por tanto el agua hacia las regiones de menor permeabilidad y mejorando la recuperación de petróleo.
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公开(公告)号:CA2753522A1
公开(公告)日:2010-11-18
申请号:CA2753522
申请日:2010-05-14
Applicant: CONOCOPHILLIPS COMPANY IP SERVICES GROUP , UNIV KANSAS
Inventor: MORADIARAGHI AHMAD , HEDGES JAMES H , ZORNES DAVID R , NEEDHAM RILEY B , GUAN HUILI , LIANG JENN-TAI , BERKLAND CORY , JOHNSON JAMES P , CHENG MIN , SCULLY FAYE L
IPC: C09K8/68
Abstract: The invention is directed to crosslinked water-soluble swellable polymers, methods for making same and their various uses. More particularly, the invention relates to a composition comprising expandable polymeric particles being made with 0.1-5% hydrophobic monomers and labile crosslinkers and stable crosslinkers, said particles mixed with a fluid. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric particles are injected into a well and when the heat and/or pH of the target zones in the formation cause degradation of the labile crosslinker and when the particle expands, the hydrophobic groups associate to form a hydrophobically associative polymer, thus diverting water to lower permeability regions and improving oil recovery.
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