公开(公告)号：US1598888A

公开(公告)日：1926-09-07

申请号：US8493226

申请日：1926-01-30

Applicant: GEORGE A YOUNG

Inventor： PETER STEIN

IPC: F17D1/05

CPC classification number: F17D1/05 ,  Y10T137/4891

公开(公告)号：US10971972B2

公开(公告)日：2021-04-06

申请号：US16293146

申请日：2019-03-05

Applicant: Saudi Arabian Oil Company

Inventor： Sameeh Batarseh ,  Nabeel Al Habib ,  Talha Jamal Ahmad

IPC: H02K7/18 ,  H05B1/02 ,  E21B36/04 ,  F17D1/05 ,  F16L53/38

Abstract: A system for preventing hydrate formation in a pipeline includes a heater housing. The heater housing has an outer diameter sized to travel within the pipeline. A turbine assembly is located within the heater housing. The turbine assembly has a blade that is rotatable by a flow of fluid within the pipeline. An electric heater is located within the heater housing and is electrically connected to the turbine assembly. The electric heater is selectively contacted by the flow of fluid within the pipeline.

公开(公告)号：US10677392B2

公开(公告)日：2020-06-09

申请号：US15780731

申请日：2016-12-01

Applicant: Nuovo Pignone Tecnologie Srl

Inventor： Francesca Monti ,  Simone Amidei

IPC: F17D1/05 ,  F17D1/075 ,  F16L53/30 ,  F17C13/10

Abstract: A system for depressurizing a gas in a pipeline is described. The system com-prises an expander configured and arranged for generating mechanical power by expanding gas from a first pressure to a second pressure. The system further comprises a heat pump and a heat transfer circuit containing a heat transfer fluid circu-lating therein, for receiving heat from the heat pump and delivering heat to the gas through a heat exchanger. A controller is further provided, configured and arranged for modulating a flow rate of the heat transfer fluid circulating in the heat transfer circuit as a function of a heat rate to be transferred from the heat transfer fluid to the gas, particularly as a function of temperature differentials between the gas and the heat transfer fluid at a gas inlet side and a gas outlet side of the heat exchang-er.

公开(公告)号：US09651183B2

公开(公告)日：2017-05-16

申请号：US14799190

申请日：2015-07-14

Applicant: Karstein Kristiansen

Inventor： Karstein Kristiansen

IPC: F16L53/00 ,  E21B43/12 ,  H05B1/02 ,  F17D1/05 ,  F17D3/00

CPC classification number: F16L53/34 ,  F16L53/37 ,  F17D1/05 ,  F17D1/18 ,  F17D3/00

Abstract: A method for controlling a pipeline system is provided. The method includes powering on an electrical heating source for heating the pipeline system. The method further includes powering off the electrical heating source, powering at least a sensor along the pipeline system for measuring a physical property, and communicating the measured data to a remote communication destination.

公开(公告)号：US06867262B1

公开(公告)日：2005-03-15

申请号：US10030987

申请日：2000-07-11

Applicant: Maximilian Angel ,  Karin Neubecker ,  Axel Sanner

Inventor： Maximilian Angel ,  Karin Neubecker ,  Axel Sanner

IPC: C08F251/00 ,  C08F261/04 ,  C08F271/00 ,  C08F291/00 ,  C10L3/00 ,  F17D1/05 ,  C07C7/00 ,  C07C7/20 ,  C08F26/00 ,  C08F226/00

CPC classification number: C08F261/04 ,  C08F251/00 ,  C08F271/00 ,  C08F291/00 ,  C10L3/00 ,  F17D1/05 ,  Y10S585/95

Abstract: Graft polymers are used as gas hydrate inhibitors.

Abstract translation: 接枝聚合物用作气体水合物抑制剂。

公开(公告)号：US6107531A

公开(公告)日：2000-08-22

申请号：US973110

申请日：1998-01-06

Applicant: Karla S. Colle ,  Christine A. Costello ,  Larry D. Talley ,  Russell H. Oelfke ,  Enock Berluche

Inventor： Karla S. Colle ,  Christine A. Costello ,  Larry D. Talley ,  Russell H. Oelfke ,  Enock Berluche

IPC: C09K8/52 ,  C10L3/06 ,  C10L3/10 ,  F17D1/05 ,  C07C7/20

CPC classification number: C09K8/52 ,  C10L3/06 ,  C10L3/10 ,  F17D1/05 ,  C09K2208/22 ,  Y10S585/95

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6028233A

公开(公告)日：2000-02-22

申请号：US624277

申请日：1996-03-28

Applicant: Karla Schall Colle ,  Christine Ann Costello ,  Enock Berluche ,  Russell Harlan Oelfke ,  Larry Dalton Talley

Inventor： Karla Schall Colle ,  Christine Ann Costello ,  Enock Berluche ,  Russell Harlan Oelfke ,  Larry Dalton Talley

IPC: C08F220/54 ,  C08F226/02 ,  C09K8/52 ,  C10L3/00 ,  C10L3/10 ,  F17D1/05 ,  C07C7/20

CPC classification number: F17D1/05 ,  C08F220/54 ,  C08F226/02 ,  C09K8/52 ,  C10L3/003 ,  C10L3/10 ,  C09K2208/22 ,  Y02E60/34 ,  Y10S585/95 ,  Y10T137/0329 ,  Y10T137/0391

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5936040A

公开(公告)日：1999-08-10

申请号：US976438

申请日：1997-11-21

Applicant: Christine Ann Costello ,  Enock Berluche ,  Russell Harlan Oelfke ,  Larry Dalton Talley

Inventor： Christine Ann Costello ,  Enock Berluche ,  Russell Harlan Oelfke ,  Larry Dalton Talley

IPC: C09K8/52 ,  C10L3/06 ,  F17D1/05 ,  C08F20/00 ,  C08F26/00

CPC classification number: F17D1/05 ,  C10L3/06 ,  C09K2208/22

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5900516A

公开(公告)日：1999-05-04

申请号：US948504

申请日：1997-10-10

Applicant: Larry Dalton Talley ,  Russell Harlan Oelfke

Inventor： Larry Dalton Talley ,  Russell Harlan Oelfke

IPC: C09K8/52 ,  C10L1/236 ,  C10L3/06 ,  F17D1/08 ,  C07C7/20 ,  F17D1/05

CPC classification number: C10L1/2364 ,  C09K8/52 ,  C10L1/2368 ,  C10L3/06 ,  F17D1/08 ,  C09K2208/22 ,  Y02E60/34 ,  Y10S585/95 ,  Y10T137/0329 ,  Y10T137/0391

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5874660A

公开(公告)日：1999-02-23

申请号：US539033

申请日：1995-10-04

Applicant: Karla Schall Colle ,  Russell Harlan Oelfke ,  Malcolm A. Kelland

Inventor： Karla Schall Colle ,  Russell Harlan Oelfke ,  Malcolm A. Kelland

IPC: C08F226/02 ,  C08F226/06 ,  C09K8/52 ,  C10L3/06 ,  C07C7/20 ,  F17D1/05

CPC classification number: C08F226/06 ,  C08F226/02 ,  C09K8/52 ,  C10L3/06 ,  C09K2208/22 ,  Y10S585/95 ,  Y10T137/0329 ,  Y10T137/0391

Abstract: 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 inhibitor used for practicing the method is selected from the family of substantially water soluble copolymers formed from N-methyl-N-vinylacetamide (VIMA) and one of three comonomers, vinylpyrrolidone (VP), vinylpiperidone (VPip), or vinylcaprolactam (VCap). VIMA/VCap is the preferred copolymer. These copolymers may be used alone or in combination with each other or other hydrate inhibitors. 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.

Abstract translation: 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选自由N-甲基-N-乙烯基乙酰胺（VIMA）和三种共聚单体，乙烯基吡咯烷酮（VP），乙烯基哌啶酮（VPip）或乙烯基己内酰胺（VCap）中的一种形成的基本上水溶性的共聚物 ）。 VIMA / VCap是优选的共聚物。 这些共聚物可以单独使用或者彼此组合使用或其它水合物抑制剂。 优选地，使用溶剂，例如水，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。