公开(公告)号：US4709759A

公开(公告)日：1987-12-01

申请号：US946864

申请日：1986-12-29

申请人： Jan Bock ,  Salvatore J. Pace ,  Donald N. Schulz

发明人： Jan Bock ,  Salvatore J. Pace ,  Donald N. Schulz

IPC分类号： C08F220/56 ,  C08F226/10 ,  C09K8/588 ,  C08F20/06 ,  E21B43/22

CPC分类号： C08F220/56 ,  C08F226/10 ,  C09K8/588 ,  Y10S507/936

摘要： This invention relates to a method for enhanced recovery of petroleum from a subterranean oil-bearing formation. More particularly, this invention relates to secondary or tertiary recovery of oil employing a polymer-thickened aqueous drive fluid. The polymeric viscosifier for the drive fluid is selected from a class of hydrophobically associating, water soluble polymers containing one or more water soluble monomers and a water insoluble monomer group. The water soluble groups are acrylamide and a salt of acrylic acid and the water insoluble group is a higher alkylacrylamide. These polymers, when dissolved in an aqueous brine solution, have the ability to substantially increase the viscosity of the aqueous solution. The control of displacement fluid mobility results in more uniform sweep efficiency and improved oil recovery. In addition, aqueous solutions of these hydrophobically associating polymers exhibit enhanced viscosification, reduced salt sensitivity and other desirable rheological properties found useful in chemically enhanced oil recovery processes.

摘要翻译： 本发明涉及一种从地下含油地层提高石油回收率的方法。 更具体地说，本发明涉及使用聚合物增稠的含水驱动流体的二次或三次回收油。 用于驱动流体的聚合物增粘剂选自含有一种或多种水溶性单体和水不溶性单体组的一类疏水缔合的水溶性聚合物。 水溶性基团是丙烯酰胺和丙烯酸盐，水不溶性基团是较高级的烷基丙烯酰胺。 这些聚合物当溶解在盐水溶液中时，具有显着提高水溶液粘度的能力。 位移流体流动的控制导致更均匀的扫描效率和改善的油回收率。 此外，这些疏水缔合聚合物的水溶液表现出增强的粘度，降低的盐敏感性和其它在化学强化的油回收方法中有用的所需的流变学性质。

公开(公告)号：US4579926A

公开(公告)日：1986-04-01

申请号：US598223

申请日：1984-04-09

申请人： John J. Maurer ,  Donald N. Schulz ,  Jan Bock

发明人： John J. Maurer ,  Donald N. Schulz ,  Jan Bock

IPC分类号： C08F6/06 ,  C08F220/56

CPC分类号： C08F220/56 ,  C08F6/06

摘要： The present invention relates to a process for the formation of water soluble copolymers of acrylamide and alkyl poly(etheroxy)acrylate which are finished by a dialysis process and are excellent viscosification agents. Wherein the process includes the free radical copolymerization of acrylamide monomer and alkyl poly(etheroxy)acrylate monomer in an aqueous medium under nitrogen conditions in the presence of free radical initiator at a sufficient temperature and for a sufficient time to effect copolymerization.

摘要翻译： 本发明涉及一种形成丙烯酰胺和聚（乙烯基）丙烯酸烷基酯的水溶性共聚物的方法，其通过透析法完成，并且是优异的增粘剂。 其中该方法包括丙烯酰胺单体和烷基聚（乙烯基）丙烯酸酯单体在水性介质中在氮气条件下，在自由基引发剂存在下，在足够的温度下进行自由基共聚，并持续足够的时间进行共聚。

公开(公告)号：US4882405A

公开(公告)日：1989-11-21

申请号：US259935

申请日：1988-10-19

申请人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

发明人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

IPC分类号： C08F220/56

CPC分类号： C08F220/56

摘要： A water or brine soluble terpolymer having the structure: ##STR1## wherein X is selected from the group consisting of ##STR2## wherein x is about 1 to about 95 mole percent; y is about 0.1 to about 5.0 mole percent; R.sub.1 is methyl or hydrogen; z is 1 to 29 mole percent; R.sub.2 is an alkyl group of 1-5 carbon atoms; R.sub.3 is an alkyl group of 3 to 4 carbon atoms; R.sub.4 is an alkyl group of 1-5 carbon atoms; and R.sub.5 is an alkyl group of 4-20.

摘要翻译： 具有以下结构的水或盐水可溶性三元共聚物：其中X选自由下列组成的组：其中x为约1至约95摩尔百分数; y为约0.1至约5.0摩尔％; R1是甲基或氢; z为1〜29摩尔％ R2是1-5个碳原子的烷基; R3是3〜4个碳原子的烷基; R4是1-5个碳原子的烷基; R5为4-20的烷基。

公开(公告)号：US4792593A

公开(公告)日：1988-12-20

申请号：US116893

申请日：1987-11-05

申请人： Donald N. Schulz ,  Enock Berluche ,  John J. Maurer ,  Jan Bock

发明人： Donald N. Schulz ,  Enock Berluche ,  John J. Maurer ,  Jan Bock

IPC分类号： C08F220/56 ,  C09K8/588 ,  C08F30/04

CPC分类号： C09K8/588 ,  C08F220/56

摘要： A terpolymer having the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of C.sub.1 to C.sub.20 alkyl groups, C.sub.6 to C.sub.20 aryl groups and C.sub.6 to C.sub.30 alkylaryl groups; R.sub.2 is hydrogen or methyl group, n is about 1 to 60; y is about 2.0 to about 35.0 mole %, and x is about 65.00 to about 98.00 mole %, z is about 0.1 to about 3.0 mole % and n is about 1 to about 60 and M is a metal cation selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements, wherein said terpolymer has an intri1sic viscosity of about 1 top about 25, wherein said terpolymer is formed by a free radical solution polymerization in the absence of a surfactant or emulsifier and comprises the polymerization of an acrylamide monomer, a metal acrylate monomer and an alkyl poly(etheroxy) acrylate monomer in the presence of a free radical initiation at a temperature of at least 5.degree. C. for at least 0.5 hours.

摘要翻译： 具有下式的三元共聚物：其中R 1选自C 1至C 20烷基，C 6至C 20芳基和C 6至C 30烷基芳基; R2为氢或甲基，n为约1至60; y为约2.0至约35.0摩尔％，x为约65.00至约98.00摩尔％，z为约0.1至约3.0摩尔％，n为约1至约60，M为选自以下的金属阳离子 元素周期表的IA，IIA，IB和IIB族组分，其中所述三元共聚物具有约1个顶部约25的粘度，其中所述三元共聚物通过在不存在表面活性剂或乳化剂的情况下通过自由基溶液聚合形成，并且包括 丙烯酰胺单体，金属丙烯酸酯单体和烷基聚（乙烯基）丙烯酸酯单体在至少5℃的温度自由基引发存在下聚合至少0.5小时。

公开(公告)号：US4788247A

公开(公告)日：1988-11-29

申请号：US121399

申请日：1987-11-16

申请人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Jeff J. Kaladas

发明人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Jeff J. Kaladas

IPC分类号： C08F220/56 ,  C09K8/588 ,  C08F28/02 ,  C08F20/38 ,  C08F20/60

CPC分类号： C08F220/56 ,  C09K8/588

摘要： A water or brine soluble terpolymer having the structure: ##STR1## wherein x is selected from the group consisting of ##STR2## wherein x is about 70 to about 95 mole percent; y is about 0.1 to about 5.0 mole percent; z is about 1 to about 30 mole percent; R.sub.1 is methyl or hydrogen; a is about 1 to about 5; b is about 3 to about 4; R.sub.3 is an alkyl group of 3 to 4 carbon atoms; R.sub.4 is an alkyl group having about 1 to 5 carbon atoms; R.sub.5 is selected from the group consisting of an alkyl group having 1 to 30 carbons, a hydrocarbon aryl group having about 6 to 20 carbons and an alkylaryl group having the structure of ##STR3## wherein A is selected from the group consisting of hydrogen, methyl groups, ethyl groups and propyl groups and mixtures thereof and c is about 6 to 20; and n is about 1 to 60.

摘要翻译： 具有以下结构的水或盐水可溶性三元共聚物：其中x选自由下列组成的组：其中x为约70至约95摩尔百分数; y为约0.1至约5.0摩尔％; z为约1至约30摩尔％; R1是甲基或氢; a为约1至约5; b为约3至约4; R3是3〜4个碳原子的烷基; R4是具有约1至5个碳原子的烷基; R5选自具有1至30个碳的烷基，具有约6至20个碳的烃芳基和具有以下结构的烷基芳基：其中A选自氢，甲基 基团，乙基和丙基及其混合物，c为约6至20; n为约1〜60。

公开(公告)号：US4742135A

公开(公告)日：1988-05-03

申请号：US937688

申请日：1986-12-04

申请人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

发明人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

IPC分类号： C08F220/56 ,  C08F26/06

CPC分类号： C08F220/56

摘要： A water soluble terpolymer having the structure: ##STR1## wherein x is selected from the group consisting of ##STR2## wherein x is about 1 to about 95 mole percent; y is about 0.1 to about 5.0 mole percent; R.sub.1 is methyl or hydrogen; z is about 1 to about 30 mole percent; R.sub.2 is an alkyl group of 1-5 carbon atoms; R.sub.3 is an alkyl group of 3 to 4 carbon atoms; R.sub.4 is an alkyl group of 1-5 carbon atoms; and R.sub.5 is an alkyl group of 4-20.

摘要翻译： 具有以下结构的水溶性三元共聚物：其中x选自由下列组成的组：其中x为约1至约95摩尔百分数; y为约0.1至约5.0摩尔％; R1是甲基或氢; z为约1至约30摩尔％; R2是1-5个碳原子的烷基; R3是3〜4个碳原子的烷基; R4是1-5个碳原子的烷基; R5为4-20的烷基。

公开(公告)号：US4463152A

公开(公告)日：1984-07-31

申请号：US454286

申请日：1982-12-29

申请人： Donald N. Schulz ,  John J. Maurer ,  Jan Bock

发明人： Donald N. Schulz ,  John J. Maurer ,  Jan Bock

IPC分类号： C08F220/56

CPC分类号： C08F220/56

摘要： The present invention relates to a composition of water soluble copolymers of acrylamide and alkyl poly(etheroxy)acrylate which are excellent viscosification agents.

摘要翻译： 本发明涉及丙烯酰胺和聚（乙烯基）丙烯酸烷基酯的水溶性共聚物的组合物，它们是优异的增粘剂。

公开(公告)号：US4463151A

公开(公告)日：1984-07-31

申请号：US454285

申请日：1982-12-29

申请人： Donald N. Schulz ,  John J. Maurer ,  Jan Bock

发明人： Donald N. Schulz ,  John J. Maurer ,  Jan Bock

IPC分类号： C08F220/56

CPC分类号： C08F220/56

摘要： The present invention relates to a process for the formation of water soluble copolymers of acrylamide and alkyl poly(etheroxy)acrylate which are excellent viscosification agents, wherein the process includes the free radical copolymerization of acrylamide monomer and alkyl poly(etheroxy)acrylate monomer in an aqueous medium under nitrogen conditions in the presence of free radical initiator at a sufficient temperature and for a sufficient time to effect copolymerization.

摘要翻译： 本发明涉及一种形成丙烯酰胺和聚（乙烯基）丙烯酸烷基酯的水溶性共聚物的方法，它是优异的增稠剂，其中该方法包括丙烯酰胺单体和聚（乙烯基）丙烯酸烷基酯单体在 水溶液在氮气条件下，在自由基引发剂存在下，在足够的温度下搅拌足够的时间进行共聚。

公开(公告)号：US4663408A

公开(公告)日：1987-05-05

申请号：US814362

申请日：1985-12-30

申请人： Donald N. Schulz ,  Enock Berluche ,  John J. Maurer ,  Jan Bock

发明人： Donald N. Schulz ,  Enock Berluche ,  John J. Maurer ,  Jan Bock

IPC分类号： C08F8/12 ,  C09K8/12 ,  C09K8/588 ,  C08F20/06

CPC分类号： C09K8/588 ,  C08F8/44 ,  C09K8/12

摘要： The present invention relates to improved viscosification agents for an aqueous or brine solutions. Typically, the viscosification agents are tetrapolymers of N-vinyl pyrrolidone/acrylamide/salt of acrylic acid/N-alkyl acrylamide wherein said tetrapolymers have the formula: ##STR1## wherein w is about 1 to about 80 mole percent, more preferably about 5 to about 75 mole percent, and most preferably about 10 to about 70 mole percent; x is about 10 to about 90 mole percent, more preferably about 20 to about 80 mole percent, and most preferably about 30 to about 70 mole percent; and y is about 0.1 to about 10.0 mole percent, more preferably about 0.15 to about 5.0 mole percent; and most preferably about 0.2 to about 3.0 mole percent; z is about 1.0 to about 30.0 mole percent, more preferably about 2.0 to about 25.0 mole percent, and most preferably about 5.0 to about 20.0 mole percent; R is an alkyl group having about 6 to about 30 carbon atoms, more preferably about 7 to about 20, and most preferably about 8 to about 18; and M is a cation selected from the group consisting of monovalent cations, preferably Na.sup.+, K.sup.+ or R.sub.4 N.sup.+.

摘要翻译： 本发明涉及用于水溶液或盐水溶液的改进的增粘剂。 通常，增粘剂是N-乙烯基吡咯烷酮/丙烯酰胺/丙烯酸/ N-烷基丙烯酰胺盐的四元共聚物，其中所述四元共聚物具有下式：其中w为约1至约80摩尔％，更优选约5至 约75摩尔％，最优选约10至约70摩尔％; x为约10至约90摩尔％，更优选约20至约80摩尔％，最优选约30至约70摩尔％ y为约0.1至约10.0摩尔％，更优选约0.15至约5.0摩尔％; 最优选约0.2至约3.0摩尔％; z为约1.0至约30.0摩尔％，更优选约2.0至约25.0摩尔％，最优选约5.0至约20.0摩尔％ R是具有约6至约30个碳原子，更优选约7至约20，最优选约8至约18的烷基; 并且M是选自一价阳离子，优选Na +，K +或R 4 N +的阳离子。

公开(公告)号：US4650848A

公开(公告)日：1987-03-17

申请号：US814252

申请日：1985-12-30

申请人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

发明人： Donald N. Schulz ,  Ilan Duvdevani ,  Jan Bock ,  Enock Berluche

IPC分类号： C08F220/56 ,  C08F20/56

CPC分类号： C08F220/56

摘要： A water soluble terpolymer having the structure: ##STR1## wherein x is selected from the group consisting of ##STR2## wherein x is about 1 to about 95 mole percent; y is about 0.1 to about 5.0 mole percent; R.sub.1 is methyl or hydrogen; z is about 1 to about 30 mole percent; R.sub.2 is an alkyl group of 1-5 carbon atoms; R.sub.3 is an alkyl group of 3 to 4 carbon atoms; R.sub.4 is an alkyl group of 1-5 carbon atoms; and R.sub.5 is an alkyl group of 4-20.

摘要翻译： 具有以下结构的水溶性三元共聚物：其中x选自由下列组成的组：其中x为约1至约95摩尔％; y为约0.1至约5.0摩尔％; R1是甲基或氢; z为约1至约30摩尔％; R2是1-5个碳原子的烷基; R3是3〜4个碳原子的烷基; R4是1-5个碳原子的烷基; R5为4-20的烷基。