公开(公告)号：AU2009328509C1

公开(公告)日：2015-04-30

申请号：AU2009328509

申请日：2009-11-07

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  GUZMANN MARCUS ,  PFEUFFER THOMAS ,  HERTH GREGOR ,  FRIEDRICH STEFAN

IPC: C09K8/508 ,  C09K8/512 ,  C09K8/516

Abstract: A method for blocking subterranean formations in the extraction of fossil oil and/or gas is proposed, wherein water-absorbent particles are introduced into porous and fluid-conducting rock formations in a first step, said particles being water-swellable, crosslinked and water-insoluble polymers, and wherein the particles in the water-conducting rock formation ultimately suppress the fluid flow through the rock layers by absorption of water. Said method is characterized in that the absorbent particles are a superabsorbent polymer having anionic and/or cationic properties and a time-delayed swelling effect. Said method, which can also be performed in saline formation water, has the characteristic that the swelling of the superabsorbers used begins after five minutes at the earliest, and the superabsorbers are accessible through four proposed process variants and any combinations thereof. Said method, which does not require a carrier fluid, has the characteristics of simplicity and in particular the controllable delay in the swelling effect under the specific conditions of subterranean rock formations.

公开(公告)号：ES2455265T3

公开(公告)日：2014-04-15

申请号：ES10730790

申请日：2010-07-09

Applicant: BASF SE

Inventor： HERTH GREGOR ,  HABERECHT MONIKA ,  FOGEL YULIA ,  LOPEZ VILLANUEVA FRANCISCO JAVIER ,  BRUCHMANN BERND

IPC: C08G63/676 ,  C04B24/26 ,  C04B24/28 ,  C08F283/01 ,  C08G81/02

Abstract: Mezcla que contiene (A) al menos un aglutinante hidráulico o latentemente hidráulico, (B) al menos un copolímero que puede obtenerse mediante reacción de (α1) al menos un comonómero etilénicamente insaturado con al menos un grupo funcional seleccionado de grupos COOH, grupos ácido sulfónico, grupos nitrilo, grupos hidroxialquilo y grupos amino o (α2) al menos un (co)polímero de al menos un comonómero etilénicamente insaturado con al menos un grupo funcional seleccionado de grupos COOH, grupos ácido sulfónico, grupos nitrilo, grupos hidroxialquilo y grupos amino con (β) al menos un compuesto oligomérico o polimérico que puede obtenerse mediante reacción de (a) al menos un ácido di- o policarboxílico etilénicamente insaturado o su anhídrido o éster con (b) al menos un alcohol al menos trifuncional y (c) al menos un compuesto de fórmula general I**Fórmula** en la que las variables se definen tal como sigue: R1 se selecciona de alquilo C1-C4, A es igual o distinto y se selecciona de alquileno C2-C6, n se encuentra en el intervalo de 4 a 40, y (d) eventualmente al menos otro compuesto con al menos un grupo COOH o al menos un grupo OH alcohólico por molécula.

公开(公告)号：BRPI0923193A2

公开(公告)日：2016-02-16

申请号：BRPI0923193

申请日：2009-11-07

Applicant: BASF SE

Inventor： HERTH GREGOR ,  GUZMANN MARCUS ,  REICHENBACH-KLINKE ROLAND ,  FRIEDRICH STEFAN ,  PFEUFFER THOMAS

IPC: C09K8/508 ,  C09K8/512 ,  C09K8/516

公开(公告)号：AU2009328509B2

公开(公告)日：2015-01-22

申请号：AU2009328509

申请日：2009-11-07

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  GUZMANN MARCUS ,  PFEUFFER THOMAS ,  HERTH GREGOR ,  FRIEDRICH STEFAN

IPC: C09K8/508 ,  C09K8/512 ,  C09K8/516

Abstract: A method for blocking subterranean formations in the extraction of fossil oil and/or gas is proposed, wherein water-absorbent particles are introduced into porous and fluid-conducting rock formations in a first step, said particles being water-swellable, crosslinked and water-insoluble polymers, and wherein the particles in the water-conducting rock formation ultimately suppress the fluid flow through the rock layers by absorption of water. Said method is characterized in that the absorbent particles are a superabsorbent polymer having anionic and/or cationic properties and a time-delayed swelling effect. Said method, which can also be performed in saline formation water, has the characteristic that the swelling of the superabsorbers used begins after five minutes at the earliest, and the superabsorbers are accessible through four proposed process variants and any combinations thereof. Said method, which does not require a carrier fluid, has the characteristics of simplicity and in particular the controllable delay in the swelling effect under the specific conditions of subterranean rock formations.

公开(公告)号：MX2011006547A

公开(公告)日：2011-10-28

申请号：MX2011006547

申请日：2009-11-07

Applicant: BASF SE

Inventor： GUZMANN MARCUS ,  REICHENBACH-KLINKE ROLAND ,  HERTH GREGOR ,  FRIEDRICH STEFAN ,  PFEUFFER THOMAS

IPC: C09K8/512 ,  C09K8/508 ,  C09K8/516

Abstract: Se propone un método para bloquear formaciones subterráneas en la extracción de aceite fósil y/o gas, en donde las partículas absorbentes de agua se introducen en formaciones rocosas conductoras de fluido y porosas en un primer paso, dichas partículas son polímeros que se expanden con agua, entrelazados e insolubles en agua, y en donde las partículas en la formación rocosa conductora de agua por último suprime el flujo de fluido a través de las capas rocosas por absorción de agua; dicho método se determina porque las partículas absorbentes son un polímero superabsorbente que tiene propiedades aniónicas y/o catiónicas y un efecto de expansión de acción retardada; dicho método, que también puede realizarse en agua de formación salina, tiene la característica de que la expansión de los superabsorbentes utilizados comienza después de cinco minutos a más tardar, y los superabsorbentes son accesibles a través de cuatro variantes del proceso propuestas y cualesquiera combinaciones de los mismos; dicho método, que no requiere un fluido portador, tiene la característica de simplicidad y en particular el retardo controlable en el efecto de expansión bajo las condiciones específicas de formaciones rocosas subterráneas.

公开(公告)号：AU2013247051A1

公开(公告)日：2014-10-09

申请号：AU2013247051

申请日：2013-04-05

Applicant: BASF SE

Inventor： MILLARD PIERRE-ERIC ,  HERTH GREGOR ,  FRIEDRICH STEFAN

IPC: C08F226/02 ,  B01D21/01 ,  C02F1/56 ,  C08F220/34 ,  D21H17/41

Abstract: New water soluble cationic copolymers derived from N-vinyl amide monomers and ethylenically unsaturated compounds bearing cationic groups.

公开(公告)号：CA2880415A1

公开(公告)日：2013-10-17

申请号：CA2880415

申请日：2013-04-05

Applicant: BASF SE

Inventor： MILLARD PIERRE-ERIC ,  HERTH GREGOR ,  FRIEDRICH STEFAN

IPC: C08F226/02 ,  B01D21/01 ,  C02F1/56 ,  C08F220/34 ,  D21H17/41

Abstract: New water soluble cationic copolymers derived from N-vinyl amide monomers and ethylenically unsaturated compounds bearing cationic groups.

公开(公告)号：CA2768465A1

公开(公告)日：2011-01-20

申请号：CA2768465

申请日：2010-07-09

Applicant: BASF SE

Inventor： HERTH GREGOR ,  HABERECHT MONIKA ,  FOGEL YULIA ,  LOPEZ VILLANUEVA FRANCISCO JAVIER ,  BRUCHMANN BERND

IPC: C08G63/676 ,  C04B24/26 ,  C04B24/28 ,  C08F283/01 ,  C08G81/02

Abstract: The invention relates to mixtures comprising (A) at least one hydraulic or latent hydraulic binding agent, (B) at least one copolymer obtainable by converting (a1) at least one ethylenic unsaturated comonomer having at least one functional group, selected from COOH groups, sulfonic acid groups, nitrile groups, hydroxyalkyl groups, and amino groups, or (a2) at least one (co)polymer of at least one ethylenic unsaturated comonomer having at least one functional group selected from COOH groups, sulfonic acid groups, nitrile groups, hydroxyalkyl groups, and amino groups, having (ß) at least one oligomer or polymer compound obtainable by converting (a) at least one ethylenic unsaturated di- or polycarbolic acid or an anhydride or ester thereof, with (b) at least one at least trifunctional alcohol, and (c) at least one compound of the general formula I wherein the variable are defined as follows: R1 is selected from C1-C4-alkyl and hydrogen, A is identical or different and selected from C2-C6-alkylene, n is in the range of 4 to 40, and (d) optionally at least one further compound having at least one COOH group or at least one alcoholic OH group per molecule.

公开(公告)号：CA2703043A1

公开(公告)日：2010-06-18

申请号：CA2703043

申请日：2009-11-07

Applicant: BASF SE

Inventor： REICHENBACH-KLINKE ROLAND ,  GUZMANN MARCUS ,  PFEUFFER THOMAS ,  HERTH GREGOR ,  FRIEDRICH STEFAN

IPC: E21B33/13

Abstract: A process is proposed for blocking underground formations in the extraction of fossil oil and/or gas, a first step involving introducing water-absorbing particles into liquid-bearing and porous rock formations, said particles being water-swellable, crosslinked and water-insoluble polymers, said particles in the water-bearing rock formation finally preventing liquid flow through the rock layers by water absorption. This process is characterized in that the absorbing particles comprise a superabsorbent polymer with anionic and/or cationic properties and a retarded swelling action. This process, which can also be carried out in saline formation waters, is notable in that the swelling of the superabsorbents used begins no earlier than after five minutes and in that the superabsorbents are obtainable by four proposed process variants and any combination thereof. This process, which does not need a carrier liquid, is notable for its simplicity and especially the controllable retardation of the swelling action under the specific conditions of underground rock formations.