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1. 发明授权

US6028233A Method for inhibiting hydrate formation 失效
标题翻译：抑制水合物形成的方法
公开(公告)号：US6028233A
公开(公告)日：2000-02-22
申请号：US624277
申请日：1996-03-28
申请人： Karla Schall Colle , Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
发明人： Karla Schall Colle , Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
IPC分类号： C08F220/54 , C08F226/02 , C09K8/52 , C10L3/00 , C10L3/10 , F17D1/05 , C07C7/20
CPC分类号： F17D1/05 , C08F220/54 , C08F226/02 , C09K8/52 , C10L3/003 , C10L3/10 , C09K2208/22 , Y02E60/34 , Y10S585/95 , Y10T137/0329 , Y10T137/0391
摘要： A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate forming constituents is claimed. More specifically, the method can be used in treating a petroleum fluid stream such as natural gas conveyed in a pipe to inhibit the formation of a hydrate restriction in the pipe. The hydrate inhibitors used for practicing the method comprise substantially water soluble polymers having N-vinyl amide or N-allyl amide units. Specific examples of such copolymers include, N-vinyl-N-methylacetamide (VIMA) copolymerized with acryloylpyrrolidine (APYD) or acryloylpiperidine (APID), and more preferably, VIMA copolymerized with N-substituted methacrylamides, such as N-isopropylmethacrylamide (iPMAM) and methacryloylpyrrolidine (MAPYD) to produce inhibitors for practicing the claimed method.
摘要翻译：要求保护在具有水合物形成成分的流体中形成笼形水合物的方法。更具体地说，该方法可用于处理在管道中输送的天然气等石油流体流，以抑制管道中的水合物限制。用于实施该方法的水合物抑制剂包括基本上具有N-乙烯基酰胺或N-烯丙基酰胺单元的水溶性聚合物。这种共聚物的具体实例包括与丙烯酰基吡咯烷（APYD）或丙烯酰基哌啶（APID）共聚的N-乙烯基-N-甲基乙酰胺（VIMA），更优选与N-取代的甲基丙烯酰胺如N-异丙基甲基丙烯酰胺（iPMAM）共聚的VIMA和甲基丙烯酰基吡咯烷（MAPYD）以产生用于实施所要求保护的方法的抑制剂。

2. 发明授权

US5936040A Method for inhibiting hydrate formation using maleimide copolymers 失效
标题翻译：使用马来酰亚胺共聚物抑制水合物形成的方法
公开(公告)号：US5936040A
公开(公告)日：1999-08-10
申请号：US976438
申请日：1997-11-21
申请人： Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
发明人： Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
IPC分类号： C09K8/52 , C10L3/06 , F17D1/05 , C08F20/00 , C08F26/00
CPC分类号： F17D1/05 , C10L3/06 , C09K2208/22
摘要： Novel maleimide copolymers have at least two monomeric units, a maleimide unit and a vinyl unit having a pendant group, the pendant group having two to twenty-one carbon atoms, at least one nitrogen atom and at least one oxygen atom. The copolymer has an average molecular weight between about 1,000 and about 6,000,000. Preferred maleimide copolymers include acrylamide/maleimide copolymers, N-vinyl amide/maleimide copolymers, vinyl lactam/maleimide copolymers, alkenyl cyclic imino ether/maleimide copolymers, and acryloylamide/maleimide copolymers. The substantially water soluble maleimide copolymers are useful for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents by reducing the rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. The inhibitor can be used conveniently at low concentrations, for example in the range of from about 0.01% to about 5% by weight of the water present in the oil or gas stream, to effectively treat a petroleum fluid having a water phase.
摘要翻译：新型马来酰亚胺共聚物具有至少两个单体单元，马来酰亚胺单元和具有侧基的乙烯基单元，侧基具有2至21个碳原子，至少一个氮原子和至少一个氧原子。共聚物的平均分子量为约1,000至约6,000,000。优选的马来酰亚胺共聚物包括丙烯酰胺/马来酰亚胺共聚物，N-乙烯基酰胺/马来酰亚胺共聚物，乙烯基内酰胺/马来酰亚胺共聚物，烯基环亚氨基醚/马来酰亚胺共聚物和丙烯酰胺/马来酰亚胺共聚物。基本上水溶性的马来酰亚胺共聚物可用于通过降低石油流体物流中气体水合物晶体的成核，生长和/或附聚的速率来抑制在具有水合物形成成分的流体中形成笼形水合物，由此抑制形成在输送石油流体的管道中存在水合物堵塞。抑制剂可以以低浓度方便地使用，例如在油或气流中存在的水的约0.01重量％至约5重量％的范围内，以有效地处理具有水相的石油流体。

3. 发明授权

US5900516A Method for predetermining a polymer for inhibiting hydrate formation 失效
标题翻译：预先确定用于抑制水合物形成的聚合物的方法
公开(公告)号：US5900516A
公开(公告)日：1999-05-04
申请号：US948504
申请日：1997-10-10
申请人： Larry Dalton Talley , Russell Harlan Oelfke
发明人： Larry Dalton Talley , Russell Harlan Oelfke
IPC分类号： C09K8/52 , C10L1/236 , C10L3/06 , F17D1/08 , C07C7/20 , F17D1/05
CPC分类号： C10L1/2364 , C09K8/52 , C10L1/2368 , C10L3/06 , F17D1/08 , C09K2208/22 , Y02E60/34 , Y10S585/95 , Y10T137/0329 , Y10T137/0391
摘要： A method for inhibiting the formation and/or agglomeration of clathrate hydrates in a petroleum fluid stream containing water is disclosed. The disclosed method uses predetermined inhibitors having a guest group, a polymer backbone, and an anchor group positioned between the guest group and the polymer backbone. The inhibitor predetermination method comprises selection of the polymer backbone, anchor group and guest group using several types of criteria. The polymer backbone should produce a substantially water soluble polymer in combination with the anchor group and the guest group. The anchor group should be a hydrophilic moiety with between one and four hydrogen bonding atoms. The guest group should be either a hydrophobic or amphiphilic moiety with a carbon atom to heteroatom ratio greater than or equal to about two to one and an average van der Waals diameter between about 3.8 angstroms and about 8.6 angstroms. Some inhibitors selected using the disclosed predetermination method have produced a subcooling temperature of about 30.0.degree. F. Of 56 predetermined inhibitors, 18 have produced a subcooling temperature .gtoreq.24.0.degree. F., 22 have produced a subcooling temperature 10.0.degree. F.
摘要翻译：公开了一种在含有水的石油流体流中抑制包合物水合物的形成和/或附聚的方法。所公开的方法使用具有客体基团，聚合物主链和位于客体基团和聚合物主链之间的锚定基团的预定的抑制剂。抑制剂预测方法包括使用几种类型的标准选择聚合物骨架，锚组和客体组。聚合物主链应该与锚定组和客体组合产生基本上水溶性的聚合物。锚定组应该是具有1-4个氢键原子的亲水部分。客体组应该是具有大于或等于约2比1的碳原子与杂原子比的疏水性或两亲性部分，平均范德华直径在约3.8埃至约8.6埃之间。使用公开的预定方法选择的一些抑制剂已经产生约30.0°F的过冷却温度。在56个预定的抑制剂中，18个已经产生过冷却温度≥24.0°F，22℃已经产生过冷温度<24.0°F，但是 > = 15.0°F，而16则产生了过冷却温度<15.0°F，但> 10.0°F。

4. 发明授权

US6015929A Gas hydrate anti-agglomerates 失效
标题翻译：天然气水合物防附聚物
公开(公告)号：US6015929A
公开(公告)日：2000-01-18
申请号：US23580
申请日：1998-02-13
申请人： Manese Rabeony , Dennis George Peiffer , Christine Ann Costello , Karla Schall Colle , Pamela J Wright , Larry Dalton Talley
发明人： Manese Rabeony , Dennis George Peiffer , Christine Ann Costello , Karla Schall Colle , Pamela J Wright , Larry Dalton Talley
IPC分类号： C09K8/52 , C09K8/528 , C10L1/10 , C10L1/12 , C10L1/18 , C10L1/188 , C10L1/22 , C10L1/24 , C10L3/00 , C10L3/06 , C07C7/20 , F17D1/05
CPC分类号： C10L1/1881 , C09K8/52 , C09K8/528 , C10L1/2437 , C10L3/00 , C10L3/06 , C09K2208/22 , C10L1/10 , C10L1/125 , C10L1/1824 , C10L1/1852 , C10L1/232 , Y10S585/95
摘要： This invention is directed toward a method for inhibiting the formation (nucleation, growth and agglomeration) of clathrate hydrates. The method comprises adding into a mixture of hydrate forming substituents and water, an effective amount of a hydrate anti-agglomerate selected from the group consisting of anionic, cationic, non-ionic and zwitterionic hydrate anti-agglomerate. The hydrate anti-agglomerant has a polar head group and a nonpolar tail group said nonpolar tail group not exceeding 11 carbon atoms in the longest carbon chain.
摘要翻译：本发明涉及一种抑制包合物水合物的形成（成核，生长和附聚）的方法。该方法包括向水合物形成取代基和水的混合物中加入有效量的选自阴离子，阳离子，非离子和两性离子水合物的防附聚物的水合物抗附聚物。水合物抗附聚物具有极性头基和非极性尾基，所述非极性尾基在最长碳链中不超过11个碳原子。

5. 发明授权

US5841010A Surface active agents as gas hydrate inhibitors 失效
标题翻译：表面活性剂作为气体水合物抑制剂
公开(公告)号：US5841010A
公开(公告)日：1998-11-24
申请号：US459643
申请日：1995-06-02
申请人： Manese Rabeony , Dennis George Peiffer , Christine Ann Costello , Pamela Jean Wright , Karla Schall Colle , Larry Dalton Talley
发明人： Manese Rabeony , Dennis George Peiffer , Christine Ann Costello , Pamela Jean Wright , Karla Schall Colle , Larry Dalton Talley
IPC分类号： C09K8/52 , C09K8/528 , C10L1/10 , C10L1/12 , C10L1/18 , C10L1/188 , C10L1/22 , C10L1/24 , C10L3/06 , C07C7/20 , F17D1/05
CPC分类号： C10L1/1881 , C09K8/52 , C09K8/528 , C10L1/10 , C10L1/2437 , C10L3/06 , C09K2208/22 , C10L1/125 , C10L1/1824 , C10L1/1852 , C10L1/232 , Y10S585/95
摘要： This invention is directed toward a method for inhibiting the formation (nucleation, growth and agglomeration) of clathrate hydrates. The method comprises adding into a mixture comprising hydrate forming substituents and water, an effective amount of a hydrate inhibitor selected from the group consisting of anionic, cationic, non-ionic and zwitterionic hydrate inhibitors. The hydrate inhibitor has a polar head group and a nonpolar tail group not exceeding 12 carbon atoms in the longest carbon chain.
摘要翻译：本发明涉及一种抑制包合物水合物的形成（成核，生长和附聚）的方法。该方法包括加入含有水合物形成取代基和水的混合物，有效量的选自阴离子，阳离子，非离子和两性离子水合物抑制剂的水合物抑制剂。水合物抑制剂在最长碳链中具有极性头基和不超过12个碳原子的非极性尾基。

6. 发明授权

US5744665A Maleimide copolymers and method for inhibiting hydrate formation 失效
标题翻译：马来酰亚胺共聚物和抑制水合物形成的方法
公开(公告)号：US5744665A
公开(公告)日：1998-04-28
申请号：US659550
申请日：1996-06-06
申请人： Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
发明人： Christine Ann Costello , Enock Berluche , Russell Harlan Oelfke , Larry Dalton Talley
IPC分类号： C09K8/52 , C10L3/06 , C10L3/10 , F17D1/05 , C07C9/00
CPC分类号： C09K8/52 , C10L3/06 , C10L3/10 , F17D1/05 , C09K2208/22 , Y10S585/95 , Y10T137/0391
摘要： Novel maleimide copolymers have at least two monomeric units, a maleimide unit and a vinyl unit having a pendant group, the pendant group having two to twenty-one carbon atoms, at least one nitrogen atom and at least one oxygen atom. The copolymer has an average molecular weight between about 1,000 and about 6,000,000. Preferred maleimide copolymers include acrylamide/maleimide copolymers, N-vinyl amide/maleimide copolymers, vinyl lactam/maleimide copolymers, alkenyl cyclic imino ether/maleimide copolymers, and acryloylamide/maleimide copolymers. The substantially water soluble maleimide copolymers are useful for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents by reducing the rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. The inhibitor can be used conveniently at low concentrations, for example in the range of from about 0.01% to about 5% by weight of the water present in the oil or gas stream, to effectively treat a petroleum fluid having a water phase.
摘要翻译：新型马来酰亚胺共聚物具有至少两个单体单元，马来酰亚胺单元和具有侧基的乙烯基单元，侧基具有2至21个碳原子，至少一个氮原子和至少一个氧原子。共聚物的平均分子量为约1,000至约6,000,000。优选的马来酰亚胺共聚物包括丙烯酰胺/马来酰亚胺共聚物，N-乙烯基酰胺/马来酰亚胺共聚物，乙烯基内酰胺/马来酰亚胺共聚物，烯基环亚氨基醚/马来酰亚胺共聚物和丙烯酰胺/马来酰亚胺共聚物。基本上水溶性的马来酰亚胺共聚物可用于通过降低石油流体物流中气体水合物晶体的成核，生长和/或附聚的速率来抑制在具有水合物形成成分的流体中形成笼形水合物，由此抑制形成在输送石油流体的管道中存在水合物堵塞。抑制剂可以以低浓度方便地使用，例如在油或气流中存在的水的约0.01重量％至约5重量％的范围内，以有效地处理具有水相的石油流体。

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