会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Maleimide copolymers and method for inhibiting hydrate formation
    • 马来酰亚胺共聚物和抑制水合物形成的方法
    • US5744665A
    • 1998-04-28
    • US659550
    • 1996-06-06
    • Christine Ann CostelloEnock BerlucheRussell Harlan OelfkeLarry Dalton Talley
    • Christine Ann CostelloEnock BerlucheRussell Harlan OelfkeLarry Dalton Talley
    • C09K8/52C10L3/06C10L3/10F17D1/05C07C9/00
    • C09K8/52C10L3/06C10L3/10F17D1/05C09K2208/22Y10S585/95Y10T137/0391
    • 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.
    • 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。
    • 5. 发明授权
    • Method for inhibiting hydrate formation using maleimide copolymers
    • 使用马来酰亚胺共聚物抑制水合物形成的方法
    • US5936040A
    • 1999-08-10
    • US976438
    • 1997-11-21
    • Christine Ann CostelloEnock BerlucheRussell Harlan OelfkeLarry Dalton Talley
    • Christine Ann CostelloEnock BerlucheRussell Harlan OelfkeLarry Dalton Talley
    • C09K8/52C10L3/06F17D1/05C08F20/00C08F26/00
    • F17D1/05C10L3/06C09K2208/22
    • 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.
    • 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。
    • 6. 发明授权
    • Method for predetermining a polymer for inhibiting hydrate formation
    • 预先确定用于抑制水合物形成的聚合物的方法
    • US5900516A
    • 1999-05-04
    • US948504
    • 1997-10-10
    • Larry Dalton TalleyRussell Harlan Oelfke
    • Larry Dalton TalleyRussell Harlan Oelfke
    • C09K8/52C10L1/236C10L3/06F17D1/08C07C7/20F17D1/05
    • C10L1/2364C09K8/52C10L1/2368C10L3/06F17D1/08C09K2208/22Y02E60/34Y10S585/95Y10T137/0329Y10T137/0391
    • 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.
    • 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。