Method for inhibiting hydrate formation
    13.
    发明授权
    Method for inhibiting hydrate formation 失效
    抑制水合物形成的方法

    公开(公告)号:US5491269A

    公开(公告)日:1996-02-13

    申请号:US306331

    申请日:1994-09-15

    摘要: A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate forming constituents is disclosed. 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 are substantially water soluble polymers formed from a cyclic imino ether. Some examples of such inhibitors include various N-acyl polyalkyleneimines, such as N-acyl substituted polyethyleneimine, N-acyl substituted polypropyleneimine, N-acyl substituted polybutyleneimine, N-acyl substituted polypentyleneimine and copolymers thereof. Also, such N-acyl substituted polyalkyleneimines can be used in various ratios with other substantially water soluble polymers and copolymers. Preferably, a solvent such as water, brine, alcohol, or mixtures thereof is used to produce an inhibitor solution or mixture to facilitate treatment of the petroleum fluid stream.

    摘要翻译: 公开了一种抑制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基本上是由环状亚氨基醚形成的水溶性聚合物。 这些抑制剂的一些实例包括各种N-酰基聚亚烷基亚胺,例如N-酰基取代的聚乙烯亚胺,N-酰基取代的聚亚丙基亚胺,N-酰基取代的聚亚苯基亚胺,N-酰基取代的聚亚苯基亚胺及其共聚物。 此外,这种N-酰基取代的聚亚烷基亚胺可以与其它基本上水溶性的聚合物和共聚物以各种比例使用。 优选地,使用溶剂如水,盐水,醇或其混合物以产生抑制剂溶液或混合物以便于处理石油流体物流。

    Enhancing antiwear and friction reducing capability of certain xanthate
containing molybdenum sulfide compounds
    14.
    发明授权
    Enhancing antiwear and friction reducing capability of certain xanthate containing molybdenum sulfide compounds 失效
    提高某些含硫化钼化合物的黄原酸酯的抗磨损和抗摩擦性能

    公开(公告)号:US5019283A

    公开(公告)日:1991-05-28

    申请号:US404141

    申请日:1989-09-07

    摘要: It now has been discovered that lubricating compositions containing an additive formed by reacting Mo(CO).sub.6 with dixanthogen can be enhanced by the inclusion in the composition ligands selected from polydentate ligands and mixtures thereof. Thus, the present invention comprises a major amount of an aoil of lubricating viscosity and a minor but effective amount of an additive formed by reacting Mo(CO).sub.6 with dixanthogen of the formula (ROCS.sub.2).sub.2 wherein R is an organo group having a sufficient number of carbon atoms to render the additive soluble in the oil; and a polydentate ligand or mixtures thereof, the mole ratio of additive to ligand being in the range of from about 1:1 to about 1:4.

    摘要翻译: 现在已经发现含有通过使Mo(CO)6与二辛基酮反应形成的添加剂的润滑组合物可以通过包含在选自多齿配体及其混合物的组合物配体中而增强。 因此,本发明包括主要量的润滑粘度和少量但有效量的添加剂,其通过使Mo(CO)6与式(ROCS2)2的二偶氮反应,其中R是具有足够的有机基团 使添加剂溶于油中的碳原子数; 和多齿配体或其混合物,添加剂与配体的摩尔比在约1:1至约1:4的范围内。

    Recovery of kinetic hydrate inhibitor
    15.
    发明授权
    Recovery of kinetic hydrate inhibitor 有权
    水合物抑制剂的回收

    公开(公告)号:US07994374B2

    公开(公告)日:2011-08-09

    申请号:US11883776

    申请日:2006-01-17

    IPC分类号: C07C7/20

    CPC分类号: C10L3/06 C09K2208/22

    摘要: A method for treating a fluid having hydrate-forming constituents is provided. In one or more embodiments, the method includes including a mixture (110) comprising glycol and one or more kinetic inhibitors to a fluid (105) that includes one or more hydrate-forming constituents and water to provide a treated fluid comprising the glycol, one or more kinetic inhibitors, one or more hydrate-forming constituents and water. The treated fluid (125) is then separated at conditions sufficient to provide an oil phase stream and an aqueous phase stream, wherein the aqueous phase stream includes one or more kinetic inhibitors, glycol and water.

    摘要翻译: 提供了一种处理具有水合物形成成分的流体的方法。 在一个或多个实施方案中,所述方法包括将包含二醇的一种或多种动力学抑制剂的混合物(110)包含在流体(105)中,所述动力学抑制剂包括一种或多种水合物形成组分和水,以提供包含二醇的处理过的流体 或更多的动力学抑制剂,一种或多种水合物形成成分和水。 然后在足以提供油相流和水相流的条件下分离处理过的流体(125),其中水相流包括一种或多种动力学抑制剂,二醇和水。

    Method for inhibiting hydrate formation
    16.
    发明授权
    Method for inhibiting hydrate formation 有权
    抑制水合物形成的方法

    公开(公告)号:US07585816B2

    公开(公告)日:2009-09-08

    申请号:US10555227

    申请日:2004-06-15

    IPC分类号: C09K8/524 C09K8/588

    摘要: A method for inhibiting the formation of gas hydrates in a petroleum fluid having hydrate-forming constituents is claimed. More specifically, the method can be used to treat a petroleum fluid, such as natural gas conveyed in a pipe, to inhibit the formation of a hydrate flow restriction in the pipe. The preferred hydrate inhibitors used for practicing the method comprise substantially water soluble homopolymers and copolymers of isopropylmethacrylamide derivatives which have a bimodal molecular weight distribution.

    摘要翻译: 要求保护在具有水合物形成成分的石油液体中抑制气体水合物形成的方法。 更具体地,该方法可用于处理石油流体,例如在管道中输送的天然气,以抑制管道中的水合物流动限制的形成。 用于实施该方法的优选水合物抑制剂包含具有双峰分子量分布的基本上水溶性均聚物和异丙基甲基丙烯酰胺衍生物的共聚物。

    Recovery of Kinetic Hydrate Inhibitor
    17.
    发明申请
    Recovery of Kinetic Hydrate Inhibitor 有权
    动态水合物抑制剂的回收

    公开(公告)号:US20080312478A1

    公开(公告)日:2008-12-18

    申请号:US11883776

    申请日:2006-01-17

    IPC分类号: C07C9/00

    CPC分类号: C10L3/06 C09K2208/22

    摘要: A method for treating a fluid having hydrate-forming constituents is provided. In one or more embodiments, the method includes including a mixture (110) comprising glycol and one or more kinetic inhibitors to a fluid (105) that includes one or more hydrate-forming constituents and water to provide a treated fluid comprising the glycol, one or more kinetic inhibitors, one or more hydrate-forming constituents and water. The treated fluid (125) is then separated at conditions sufficient to provide an oil phase stream and an aqueous phase stream, wherein the aqueous phase stream includes one or more kinetic inhibitors, glycol and water.

    摘要翻译: 提供了一种处理具有水合物形成成分的流体的方法。 在一个或多个实施方案中,所述方法包括将包含二醇的一种或多种动力学抑制剂的混合物(110)包含在流体(105)中,所述动力学抑制剂包括一种或多种水合物形成组分和水,以提供包含二醇的处理过的流体 或更多的动力学抑制剂,一种或多种水合物形成成分和水。 然后在足以提供油相流和水相流的条件下分离处理过的流体(125),其中水相流包括一种或多种动力学抑制剂,二醇和水。

    Method for inhibiting hydrate formation
    20.
    发明授权
    Method for inhibiting hydrate formation 失效
    抑制水合物形成的方法

    公开(公告)号:US6107531A

    公开(公告)日:2000-08-22

    申请号:US973110

    申请日:1998-01-06

    摘要: A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents involves treating the fluid with an inhibitor comprising a substantially water soluble polymer having a polymer backbone .with a pendant C.sub.1 --C.sub.3 alkyl group; the polymer having an average molecular weight between about 1,000 and about 6,000,000. Preferably, the pendant alkyl group is a methyl group. The rate of nucleation, growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream Is reduced using the alkylated polymer backbone inhibitor, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. Test results are disclosed which unexpectedly show that alkylating the polymer backbone with a methyl group will produce a subcooling for the alkylated polymer that is at least about 2.degree. F. (about 1.1.degree. C.) greater than its nonalkylated counterpart. 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: PCT No.PCT / US96 / 10003 Sec。 371日期:1998年1月6日 102(e)1998年1月6日PCT PCT 1996年6月7日PCT公布。 公开号WO96 / 41786 PCT。 日期:1996年12月27日一种用于抑制在具有水合物形成成分的流体中形成笼形水合物的方法包括用包含具有聚合物主链的基本上水溶性聚合物的抑制剂处理流体,其具有C1-C3烷基侧基; 该聚合物的平均分子量为约1,000至约6,000,000。 优选地,所述侧基烷基是甲基。 使用烷基化聚合物主链抑制剂减少石油流体流中气体水合物晶体的成核,生长和/或附聚的速率,由此抑制输送石油流体流的管道中的水合物阻塞的形成。 公开了测试结果,其意外地显示用甲基烷基化聚合物主链将产生比其非烷基化对应物大至少约2°F(约1.1℃)的烷基化聚合物的过冷却。 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。