公开(公告)号：US09834720B2

公开(公告)日：2017-12-05

申请号：US14587777

申请日：2014-12-31

申请人： Ecolab USA Inc.

发明人： Izabela Owsik ,  Alfred Hase

IPC分类号： C09K8/52

CPC分类号： C09K8/52 ,  C09K2208/22

摘要： The present invention generally relates to one or more compositions and methods for inhibiting the formation of gas hydrate agglomerates in a fluid. The fluid may be contained, for example, in an oil or gas pipeline or refinery.

公开(公告)号：US09834715B2

公开(公告)日：2017-12-05

申请号：US15022816

申请日：2013-10-17

申请人： Halliburton Energy Services, Inc.

发明人： Jim Weaver ,  Michael McCabe

IPC分类号： E21B43/22 ,  C09K8/035 ,  C09K8/40 ,  C09K8/42 ,  C09K8/52 ,  C09K8/64 ,  C09K8/68 ,  C09K8/72 ,  C09K8/82 ,  C09K8/88 ,  C09K8/90 ,  E21B43/04 ,  C09K8/44 ,  C09K8/62 ,  C09K8/74 ,  E21B43/16

CPC分类号： C09K8/035 ,  C09K8/40 ,  C09K8/42 ,  C09K8/44 ,  C09K8/52 ,  C09K8/62 ,  C09K8/64 ,  C09K8/68 ,  C09K8/685 ,  C09K8/725 ,  C09K8/74 ,  C09K8/82 ,  C09K8/887 ,  C09K8/90 ,  C09K2208/24 ,  C09K2208/26 ,  E21B43/04 ,  E21B43/16

摘要： Dual-purpose additives that may be used as viscosifying agents and surface active agents in fluids, subterranean treatments and oilfield operations are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a polymeric dual-purpose additive comprising a base polymer comprising a plurality of monomer units, and one or more hydrophobic groups bonded to at least one of the monomer units; introducing the treatment fluid into at least a portion of a subterranean formation; and depolymerizing at least a portion of the dual-purpose additive to form one or more surface active fragments, each of the surface active fragments comprising one or more of the hydrophobic groups bonded to one or more of the monomer units.

公开(公告)号：US20170327731A1

公开(公告)日：2017-11-16

申请号：US15522940

申请日：2014-12-04

申请人： Halliburton Energy Services, Inc.

发明人： Denise Nicole Benoit ,  Chandra Sekhar Palla-Venkata ,  Jody Marie Burks ,  Nathan Carl Schultheiss ,  Ali Alwattari ,  David Loveless ,  James William Ogle ,  Thomas Welton

IPC分类号： C09K8/68 ,  C09K8/60 ,  C09K8/584 ,  C09K8/86 ,  C09K8/52

CPC分类号： C09K8/68 ,  C09K8/52 ,  C09K8/584 ,  C09K8/602 ,  C09K8/86 ,  E21B43/16

摘要： Methods for selecting a surfactant for treating a subterranean formation based on the performance of the surfactant and the characteristics of the subterranean formation and the treatment fluids that may be used to treat that formation are provided. In one embodiment, the method may comprise providing a treatment fluid, formation materials, hydrocarbon, and a plurality of surfactants, wherein the hydrocarbon is acquired from a subterranean formation; selecting at least two surfactants from the plurality of surfactants by determining whether each of the plurality of surfactants separates a mixture of the treatment fluid and the hydrocarbon; and selecting at least one surfactant from the at least two surfactants by determining whether the hydrocarbon displaces the treatment fluid from the formation materials in the presence of each of the at least two surfactants.

公开(公告)号：US09796906B2

公开(公告)日：2017-10-24

申请号：US14765460

申请日：2014-05-05

申请人： Multi-Chem Group, LLC

发明人： Liangwei Qu ,  Yangqiu Sun ,  Funian Zhao ,  Curtis Conkle ,  Erick J. Acosta

IPC分类号： C09K8/52 ,  C09K8/524 ,  C10L3/10

CPC分类号： C09K8/524 ,  C09K8/52 ,  C09K2208/22 ,  C10L3/107

摘要： Compounds comprising multiple hydrophilic heads and a lipophilic tail may be employed into fluids to inhibit agglomeration of hydrates, among other things. Suitable hydrophilic heads may include secondary, tertiary, and/or quaternary ammonium cation moieties, phosphonium cation moieties, and combinations thereof. Such LDHI compounds may provide enhanced interactivity with hydrate crystals and/or hydrate-forming molecules. These compounds may be employed in fluids in various environments, such as a conduit penetrating a subterranean formation, or a conduit carrying fluid in an industrial setting.

公开(公告)号：US09758711B2

公开(公告)日：2017-09-12

申请号：US14687269

申请日：2015-04-15

申请人： Baker Hughes Incorporated

发明人： Lirio Quintero ,  Othon Rego Monteiro

IPC分类号： C09K8/52 ,  C09K8/32 ,  C09K8/035 ,  C09K8/60 ,  E21B36/00 ,  C09K8/04 ,  C09K8/82 ,  C09K8/84

CPC分类号： C09K8/32 ,  C09K8/035 ,  C09K8/04 ,  C09K8/52 ,  C09K8/602 ,  C09K8/604 ,  C09K8/82 ,  C09K8/84 ,  E21B36/001

摘要： Working fluids, such as drilling fluids, may remove heat from other fluids, tools, equipments and environments and transfer it to other locations by using reversible phase change elements. The heat removal occurs through the absorption of heat by one or more phase transitions or a sequence of phase transitions in the elements of the working fluid. For instance, heat is absorbed when the phase change portions of the reversible phase change elements change phase including, but not necessarily limited to, a change from solid to smectic liquid crystal, from solid to nematic liquid crystal, from smectic liquid crystal to isotropic liquid, from nematic liquid crystal to isotropic liquid, from solid to isotropic liquid, and sequences and combinations thereof. Heat is released when the phase change reverses. These phase changes are first-order transitions and are associated with a latent heat or enthalpy.

公开(公告)号：US09745841B2

公开(公告)日：2017-08-29

申请号：US13125099

申请日：2008-10-24

申请人： Sonia Marino ,  Marc Thiercelin

发明人： Sonia Marino ,  Marc Thiercelin

IPC分类号： E21B43/267 ,  C09K8/52 ,  C09K8/68 ,  C09K8/80 ,  E21B43/26

CPC分类号： E21B43/267 ,  C09K8/52 ,  C09K8/68 ,  C09K8/80 ,  C09K8/805 ,  C09K2208/08 ,  C09K2208/26 ,  E21B43/26

摘要： A method of fracture fluid clean-up from a fracture by assisting Darcy flow with electro-osmotic effects is provided. Proppants having suitable surface potential, and fracture fluids having suitable electrical conductivity are employed. A suitable electric field is imposed, using electrodes placed on the surface or in adjacent wells. The current creates an electro-osmotic flow that carries fluid to the wellbore.

公开(公告)号：US09714374B2

公开(公告)日：2017-07-25

申请号：US13545639

申请日：2012-07-10

申请人： Nader S Berchane ,  Chisa K Brookes ,  Douglas J Turner ,  Jason W Lachance

发明人： Nader S Berchane ,  Chisa K Brookes ,  Douglas J Turner ,  Jason W Lachance

IPC分类号： B01D17/00 ,  B01D21/01 ,  B01D37/00 ,  C09K8/52 ,  C02F5/08 ,  E21B37/06 ,  E21B43/01 ,  E21B43/36 ,  C09K8/536 ,  C09K8/524

CPC分类号： C09K8/536 ,  B01D17/00 ,  B01D21/01 ,  B01D37/00 ,  C09K8/524 ,  C09K2208/22 ,  E21B43/36 ,  Y10T137/206

摘要： Embodiments described herein provide a system and methods for protecting a fluid stream from fouling using particles that include phase change materials. In an example, the particles are injected into the fluid stream and release energy at a selected temperature, which may warm the fluid stream.

公开(公告)号：US20170204321A1

公开(公告)日：2017-07-20

申请号：US15476481

申请日：2017-03-31

申请人： Halliburton Energy Services, Inc.

发明人： Alexandra Clare MORRISON

IPC分类号： C09K8/52 ,  C10L3/10 ,  C09K8/035 ,  E21B41/00 ,  E21B21/00

CPC分类号： C09K8/52 ,  C09K8/035 ,  C09K8/524 ,  C09K2208/10 ,  C09K2208/22 ,  C10G29/20 ,  C10L1/1658 ,  C10L1/1675 ,  C10L1/2368 ,  C10L3/107 ,  C10L2230/08 ,  C10L2250/04 ,  C10L2250/06 ,  E21B7/00 ,  E21B21/001 ,  E21B21/08 ,  E21B41/00 ,  E21B2021/005 ,  Y10T137/0391

摘要： Inhibiting gas hydrate formation while transporting hydrocarbon fluids may include providing a kinetic gas hydrate inhibitor, adding the kinetic gas hydrate inhibitor to a fluid capable of producing gas hydrates, and transporting the fluid that comprises the kinetic gas hydrate inhibitor. Generally a kinetic gas hydrate inhibitor may include a heterocyclic compound comprising nitrogen, e.g., polyvinyl pyrrolidone).

公开(公告)号：US20170190948A1

公开(公告)日：2017-07-06

申请号：US15128998

申请日：2015-03-26

申请人： M-I L.L.C.

发明人： Matthew Offenbacher ,  Balkrishna Gadiyar

IPC分类号： C09K8/52 ,  E21B37/00 ,  E21B43/04 ,  E21B43/08 ,  C09K8/035 ,  C09K8/506

CPC分类号： C09K8/52 ,  C09K8/035 ,  C09K8/506 ,  C09K2208/08 ,  C09K2208/26 ,  E21B21/003 ,  E21B37/00 ,  E21B43/04 ,  E21B43/08

摘要： Methods include drilling at least one interval of a wellbore with a water-based wellbore fluid producing a filtercake in the at least one interval of the wellbore. The methods also include gravel packing an interval of a wellbore traversing a subterranean formation with a gravel pack that comprises polyhydroxycarboxylic acid, and hydrolyzing the polyhydroxycarboxylic acid to degrade at least a portion of the filtercake.

公开(公告)号：US20170183643A1

公开(公告)日：2017-06-29

申请号：US14916476

申请日：2014-09-19

申请人： NOVOZYMES A/S

发明人： Kristian Bertel Roemer M. Krogh ,  Nikolaj Spodsberg ,  Klaus Gori ,  Pernille Von Freiesleben

IPC分类号： C12N9/24 ,  C12N9/16 ,  C12N9/02 ,  C12N9/88 ,  A23F5/24 ,  C12P19/02 ,  C12P19/14 ,  C09K8/62 ,  C09K8/52 ,  C11D3/386 ,  C12N9/42 ,  C12N9/48

CPC分类号： C12N9/2494 ,  A23F5/246 ,  C09K8/52 ,  C09K8/62 ,  C11D3/38636 ,  C12N9/0004 ,  C12N9/16 ,  C12N9/2402 ,  C12N9/2437 ,  C12N9/48 ,  C12N9/88 ,  C12P19/02 ,  C12P19/14 ,  C12Y302/01004 ,  C12Y302/01078 ,  C12Y402/0201

摘要： The present invention relates to polypeptides having mannanase activity, catalytic domains, and carbohydrate binding modules, and polynucleotides encoding the polypeptides, catalytic domains, and carbohydrate binding modules. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides, catalytic domains, and carbohydrate binding modules.