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1. 发明授权

US12037544B2 Crosslinking of swellable polymer with PEI 有权
公开(公告)号：US12037544B2
公开(公告)日：2024-07-16
申请号：US17864126
申请日：2022-07-13
申请人： CONOCOPHILLIPS COMPANY , University of Kansas
发明人： Ahmad Moradi-Araghi , Min Cheng , Riley B. Needham , James H Hedges , Ramesh S Sarathi , Faye L Scully , Terry M Christian , Huili Guan , Cory Berkland , Jenn-Tai Liang
IPC分类号： C09K8/588 , E21B33/138 , E21B43/16
CPC分类号： C09K8/588 , E21B33/138 , E21B43/16
摘要： The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled by covalent crosslinking in a transamidation reaction, methods for making same, and their various uses in the hygiene and medical arts, gel electrophoresis, packaging, agriculture, the cable industry, information technology, in the food industry, papermaking, use as flocculation aids, and the like. More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric microparticles are injected into a well and when the heat and/or pH of the well cause degradation of the labile crosslinker and when the microparticle expands, the tertiary crosslinker crosslinks the polymer to form a stable gel, thus diverting water to lower permeability regions and improving oil recovery.

2. 发明授权

US11384279B2 Delayed gelation of polymers 有权
公开(公告)号：US11384279B2
公开(公告)日：2022-07-12
申请号：US17079877
申请日：2020-10-26
申请人： CONOCOPHILLIPS COMPANY , University of Kansas
发明人： Huili Guan , Cory Berkland , Ahmad Moradi-Araghi , Jenn-Tai Liang , Terry M. Christian , Riley B. Needham , Min Cheng
IPC分类号： C09K8/588 , C09K8/50 , C09K8/512
摘要： The disclosure is directed to methods and compositions delaying the gelation of polymers in water flooding by sequentially or co-injecting a carboxylate-containing polymer solution, a gel-delaying polymer, and gelation agent into a hydrocarbon reservoir. Delays of weeks are observed.

3. 发明授权

US09139762B2 Swellable polymer with cationic sites 有权
标题翻译：具有阳离子位点的可溶胀聚合物
公开(公告)号：US09139762B2
公开(公告)日：2015-09-22
申请号：US14182901
申请日：2014-02-18
申请人： ConocoPhillips Company , University of Kansas
发明人： Ahmad Moradi-Araghi , James H. Hedges , David R. Zornes , Riley B. Needham , Huili Guan , Jenn-Tai Liang , Cory Berkland , James P. Johnson , Min Cheng , Faye Lynn Scully
IPC分类号： C09K8/588 , E21B43/16 , C09K8/88
CPC分类号： C09K8/887 , C09K8/588
摘要： 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 a suitable pH in the reservoir cause degradation of the labile crosslinker and when the particle expands, the cationic sites in the polymer adsorb to negative sites of the rock in the formation, thus diverting water to lower permeability regions and improving oil recovery. However, many other uses are possible.
摘要翻译：本发明涉及长效交联水溶性可溶胀聚合物，其制备方法及其用途。更具体地说，本发明涉及包含具有阳离子位点的可发性聚合物颗粒以及不稳定的交联剂和稳定的交联剂的组合物，所述颗粒与流体混合。特别重要的用途是作为石油生产中的注入流体，其中将可发性聚合物颗粒注入到储存器中的目标区域中，并且当储存器中的热量和/或合适的pH引起不稳定交联剂的降解时，膨胀，聚合物中的阳离子部位吸附在地层中的岩石的负位点，从而将水转移到较低的渗透率区域并提高油的回收率。然而，许多其他用途是可能的。

4. 发明授权

US10093848B2 Delayed gelling agents 有权
公开(公告)号：US10093848B2
公开(公告)日：2018-10-09
申请号：US14060749
申请日：2013-10-23
申请人： ConocoPhillips Company , University of Kansas
发明人： Ying-Ying Lin , Cory Berkland , Jenn-Tai Liang , Ahmad Moradi-Araghi , Terry M Christian , Riley B. Needham , James H. Hedges , Min Cheng , Faye L. Scully , David R. Zornes
IPC分类号： C09K8/035 , C09K8/60 , C09K8/584
摘要： The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.

5. 发明授权

US11634626B2 Delayed gelling agents 有权
公开(公告)号：US11634626B2
公开(公告)日：2023-04-25
申请号：US17412152
申请日：2021-08-25
申请人： ConocoPhillips Company , University of Kansas
发明人： Ying-Ying Lin , Cory Berkland , Jenn-Tai Liang , Ahmad Moradi-Araghi , Terry M. Christian , Riley B. Needham , James H. Hedges , Min Cheng , Faye L. Scully , David R. Zornes
IPC分类号： C09K8/035 , C09K8/60 , C09K8/584
摘要： The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.

6. 发明授权

US11447686B2 Low molecular weight polyacrylates for EOR 有权
公开(公告)号：US11447686B2
公开(公告)日：2022-09-20
申请号：US17234153
申请日：2021-04-19
申请人： ConocoPhillips Company , University of Kansas
发明人： Stephen J Johnson , Cory Berkland , Ahmad Moradi-Araghi , Jenn-Tai Liang , Terry M. Christian , Riley B. Needham , Min Cheng , Ying-Ying Lin , Andrew B. Woodside
IPC分类号： C09K8/588 , E21B43/16 , C09K8/035 , C09K8/60 , C09K8/584 , C09K8/528 , C09K8/524
摘要： The disclosure is directed to low molecular weight polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.

7. 发明授权

US11186765B2 Delayed gelling agents 有权
公开(公告)号：US11186765B2
公开(公告)日：2021-11-30
申请号：US16152557
申请日：2018-10-05
申请人： ConocoPhillips Company , University of Kansas
发明人： Ying-Ying Lin , Cory Berkland , Jenn-Tai Liang , Ahmad Moradi-Araghi , Terry M. Christian , Riley B. Needham , James H. Hedges , Min Cheng , Faye L. Scully , David R. Zornes
IPC分类号： C09K8/035 , C09K8/60 , C09K8/584
摘要： The disclosure is directed to polyelectrolyte complex nanoparticles that can be used to deliver agents deep into hydrocarbon reservoirs. Methods of making and using said polyelectrolyte complex nanoparticles are also provided.

8. 发明授权

US11136492B2 Low pH crosslinking of polymers 有权
公开(公告)号：US11136492B2
公开(公告)日：2021-10-05
申请号：US16527958
申请日：2019-07-31
申请人： CONOCOPHILLIPS COMPANY , University of Kansas
发明人： Huili Guan , Cory Berkland , Ahmad Moradi-Araghi , Jenn-Tai Liang , Terry M. Christian , Riley B. Needham , James H. Hedges , Min Cheng , Faye L. Scully
IPC分类号： C09K8/588 , C09K8/594 , E21B43/16 , C08F220/56 , C08L33/26 , E21B33/138
摘要： The invention is directed to polymers that self-crosslink at acidic pH or can be crosslinked by phenolic agents in brine. Such polymers have lower viscosity and can be pumped deep into reservoirs, where they will cross link in situ, thus increasing their viscosity and/or form a gel and blocking thief zones. Methods of making and using such polymers are also provided.

9. 发明授权

US10407612B2 Low PH crosslinking of polymers 有权
公开(公告)号：US10407612B2
公开(公告)日：2019-09-10
申请号：US15481426
申请日：2017-04-06
申请人： ConocoPhillips Company , University of Kansas
发明人： Huili Guan , Cory Berkland , Ahmad Moradi-Araghi , Jenn-Tai Liang , Terry M. Christian , Riley B. Needham , James H. Hedges , Min Cheng , Faye L. Scully
IPC分类号： C09K8/588 , C09K8/594 , E21B43/16 , C08F220/56 , C08L33/26 , E21B33/138
摘要： The invention is directed to polymers that self-crosslink at acidic pH or can be crosslinked by phenolic agents in brine. Such polymers have lower viscosity and can be pumped deep into reservoirs, where they will cross link in situ, thus increasing their viscosity and/or form a gel and blocking thief zones. Methods of making and using such polymers are also provided.

10. 发明申请

US20220348817A1 CROSSLINKING OF SWELLABLE POLYMER WITH PEI 有权
公开(公告)号：US20220348817A1
公开(公告)日：2022-11-03
申请号：US17864126
申请日：2022-07-13
申请人： CONOCOPHILLIPS COMPANY , University of Kansas
发明人： Ahmad MORADI-ARAGHI , Min CHENG , Riley B. Needham , James H HEDGES , Ramesh S SARATHI , Faye L SCULLY , Terry M CHRISTIAN , Huili GUAN , Cory BERKLAND , Jenn-Tai LIANG
IPC分类号： C09K8/588 , E21B33/138 , E21B43/16
摘要： The invention is directed to stable and labile crosslinked water swellable polymeric microparticles that can be further gelled by covalent crosslinking in a transamidation reaction, methods for making same, and their various uses in the hygiene and medical arts, gel electrophoresis, packaging, agriculture, the cable industry, information technology, in the food industry, papermaking, use as flocculation aids, and the like. More particularly, the invention relates to a composition comprising expandable polymeric microparticles having labile crosslinkers and stable crosslinkers, said microparticle mixed with a fluid and an unreacted tertiary crosslinker comprising PEI or other polyamine based tertiary crosslinker that is capable of further crosslinking the microparticle on degradation of the labile crosslinker and swelling of the particle, so as to form a stable gel. A particularly important use is as an injection fluid in petroleum production, where the expandable polymeric microparticles are injected into a well and when the heat and/or pH of the well cause degradation of the labile crosslinker and when the microparticle expands, the tertiary crosslinker crosslinks the polymer to form a stable gel, thus diverting water to lower permeability regions and improving oil recovery.

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