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公开(公告)号：US07670995B2
公开(公告)日：2010-03-02
申请号：US10343213
申请日：2001-07-11
CPC分类号： C09K8/62 , B01F17/0021 , B01F17/0028 , B01F17/0042 , B01F17/005 , B01F17/0057 , B01F17/0064 , C09K8/528
摘要： A viscoelastic wellbore treatment fluid comprises an effective amount of an oligomeric surfactant for controlling the viscoelasticity of the fluid.
摘要翻译： 粘弹性井眼处理流体包含有效量的用于控制流体的粘弹性的低聚表面活性剂。
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2.发明授权Wellbore treatment with hydrocarbon-responsive fluid containing oligomeric viscoelastic surfactant 有权用含有低聚粘弹性表面活性剂的烃类反应流体进行井筒处理公开(公告)号：US07858563B2
公开(公告)日：2010-12-28
申请号：US12687160
申请日：2010-01-14
CPC分类号： C09K8/62 , B01F17/0021 , B01F17/0028 , B01F17/0042 , B01F17/005 , B01F17/0057 , B01F17/0064 , C09K8/528
摘要： A treatment of a subterranean formation which contains a hydrocarbon-bearing zone, is carried out using a hydrocarbon-responsive fluid thickened with an oligomeric surfactant consisting of from 2 to 8_linked surfactant monomer subunits. The process of treatment comprises (i) mixing a thickening amount of oligomeric surfactant with an aqueous liquid to make a viscoelastic treatment fluid, (ii) pumping said viscoelastic treatment fluid through a wellbore and into the subterranean formation, where (iii) contact with hydrocarbons within the formation dissipates the viscosity of the treatment fluid.
摘要翻译： 含有含烃区域的地下地层的处理是使用由2-8个连接的表面活性剂单体亚单元组成的低聚表面活性剂增稠的烃响应流体进行的。 处理方法包括（i）将增稠量的低聚表面活性剂与含水液体混合以制备粘弹性处理流体，（ii）将所述粘弹性处理流体泵送穿过井眼并进入地层，其中（iii）与烃接触 在地层内消散了处理液的粘度。
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3.发明申请WELLBORE TREATMENT WITH HYDROCARBON-RESPONSIVE FLUID CONTAINING OLIGOMERIC VISCOELASTIC SURFACTANT 有权具有含有低分子粘弹性表面活性剂的含氢响应流体的井筒处理公开(公告)号：US20100167967A1
公开(公告)日：2010-07-01
申请号：US12687160
申请日：2010-01-14
IPC分类号： C09K8/68
CPC分类号： C09K8/62 , B01F17/0021 , B01F17/0028 , B01F17/0042 , B01F17/005 , B01F17/0057 , B01F17/0064 , C09K8/528
摘要： A treatment of a subterranean formation which contains a hydrocarbon-bearing zone, is carried out using a hydrocarbon-responsive fluid thickened with an oligomeric surfactant consisting of from 2 to 8_linked surfactant monomer subunits. The process of treatment comprises (i) mixing a thickening amount of oligomeric surfactant with an aqueous liquid to make a viscoelastic treatment fluid, (ii) pumping said viscoelastic treatment fluid through a wellbore and into the subterranean formation, where (iii) contact with hydrocarbons within the formation dissipates the viscosity of the treatment fluid.
摘要翻译： 含有含烃区域的地下地层的处理是使用由2-8个连接的表面活性剂单体亚单元组成的低聚表面活性剂增稠的烃响应流体进行的。 处理方法包括（i）将增稠量的低聚表面活性剂与含水液体混合以制备粘弹性处理流体，（ii）将所述粘弹性处理流体泵送穿过井眼并进入地层，其中（iii）与烃接触 在地层内消散了处理液的粘度。
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公开(公告)号：US07410934B2
公开(公告)日：2008-08-12
申请号：US10250416
申请日：2002-02-13
CPC分类号： C09K8/68 , B01F17/0021 , B01F17/0042 , B01F17/0057 , C07C69/40 , C07C229/12 , C09K8/62 , C09K2208/30
摘要： The invention concerns an aqueous viscoelastic fluid for use in the recovery of hydrocarbons. According to the invention, the aqueous viscoelastic fluid comprises a monomer, a dimer or an oligomer of a viscoelastic surfactant able to form a viscoelastic gel under downhole conditions, said surfactant comprising a hydrophobic tail and a hydrophilic head, and being of the following formulae: R—X—Y-Z where R is the hydrophobic tail of the surfactant, Z is the hydrophilic head of the surfactant, said hydrophilic head being charged, X is a stabilising group and Y chain is a linear, saturated or unsaturated, hydrocarbon chain of 1, 2 or 3 carbon atoms or a branched, saturated or unsaturated hydrocarbon chain wherein the main chain is of 1, 2 or 3 carbon atoms, possibly incorporating an aromatic ring.
摘要翻译： 本发明涉及用于回收烃类的水性粘弹性流体。 根据本发明，水性粘弹性流体包括能够在井下条件下形成粘弹性凝胶的粘弹性表面活性剂的单体，二聚体或低聚物，所述表面活性剂包含疏水性尾巴和亲水性头部，并具有下式： RXYZ其中R是表面活性剂的疏水尾，Z是表面活性剂的亲水头，所述亲水头被加料，X是稳定基团，Y链是1,2或3的直链，饱和或不饱和的烃链 碳原子或支链，饱和或不饱和烃链，其中主链具有1,2或3个碳原子，可能并入芳环。
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公开(公告)号：US06881709B2
公开(公告)日：2005-04-19
申请号：US09826127
申请日：2001-04-04
申请人： Erik B. Nelson , Bernhard Lungwitz , Keith Dismuke , Mathew Samuel , Golchi Salamat , Trevor Hughes , Jesse Lee , Philip Fletcher , Diankui Fu , Richard Hutchins , Michael Parris , Gary John Tustin
发明人： Erik B. Nelson , Bernhard Lungwitz , Keith Dismuke , Mathew Samuel , Golchi Salamat , Trevor Hughes , Jesse Lee , Philip Fletcher , Diankui Fu , Richard Hutchins , Michael Parris , Gary John Tustin
CPC分类号： C09K8/92 , C09K8/536 , C09K8/62 , C09K8/72 , C09K8/74 , C09K2208/26 , Y10S507/921 , Y10S507/922
摘要： Methods and compositions are disclosed for controlled addition of components that decrease the viscosity of the viscoelastic surfactant fluids or for controlled changes in the electrolyte concentration or composition of the viscoelastic surfactant fluids. One aspect of the invention relates to the use of internal breakers with a delayed activation. Another aspect of the invention relates to the use of precursors that release a breaking system such as alcohol by a process such as melting, slow dissolution, reaction with a compound present in the fluid or added to the fluid during or after the step of injecting, rupture of an encapsulating coating and de-adsorption of a breaking agent absorbed into solid particles. In another aspect of the invention, alcohols are included in a pad to reduce the low-shear viscosity and reduce the resistance to flow of the treatment fluids during a desired phase of the treatment.
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公开(公告)号：US07704926B2
公开(公告)日：2010-04-27
申请号：US10250415
申请日：2002-02-13
申请人： Jian Zhou , Trevor Hughes
发明人： Jian Zhou , Trevor Hughes
CPC分类号： C09K8/68 , B01F17/0021 , B01F17/0042 , B01F17/0057 , C07C69/40 , C07C229/12 , C09K8/62 , C09K2208/30
摘要： The present invention provides aqueous viscoelastic compositions comprising a cleavable surfactant and possibly also an electrolyte. The cleavable surfactants useful in the present invention comprise at least one weak chemical bond, which is capable of being broken under appropriate conditions, to produce oil soluble and water soluble products typically having no interfacial properties and surface activity compared with the original surfactant molecule. Further, the rheological properties of the aqueous viscolelastic composition are usually altered upon cleavage of the cleavable surfactant generally resulting in the elimination of the viscofying, viscoelastic and surfactant properties of the composition. Aqueous viscoelastic compositions in accordance with the present invention are suitable for use in oil-field applications, particularly for hydraulic fracturing of subterranean formations. Thus, the present invention also relates to a wellbore service fluid and a method of fracturing a subterranean formation. The present invention also concerns novel cleavable surfactants.
摘要翻译： 本发明提供包含可切割表面活性剂和可能还有电解质的水性粘弹性组合物。 可用于本发明的可切割表面活性剂包含至少一种弱化学键，其能够在合适的条件下破碎以产生与原始表面活性剂分子相比通常不具有界面性质和表面活性的油溶性和水溶性产物。 此外，水性粘弹性组合物的流变性质通常在切割可切割表面活性剂时改变，通常导致组合物的粘着粘弹性，粘弹性和表面活性剂的消除。 根据本发明的水性粘弹性组合物适用于油田应用，特别是用于地下地层的水力压裂。 因此，本发明还涉及井筒服务流体和压裂地层的方法。 本发明还涉及新颖的可切割表面活性剂。
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公开(公告)号：US07036585B2
公开(公告)日：2006-05-02
申请号：US10250417
申请日：2002-02-13
申请人： Jian Zhou , Trevor Hughes
发明人： Jian Zhou , Trevor Hughes
IPC分类号： E21B43/22
CPC分类号： C09K8/68 , B01F17/0021 , B01F17/0042 , B01F17/0057 , C07C69/40 , C07C229/12 , C09K8/62 , C09K2208/30
摘要： The invention concerns an aqueous viscoelastic fluid for use in the recovery of hydrocarbons. According to the invention this fluid comprises a first viscoelastic surfactant and a second surfactant able to decompose under downhole conditions to release a compound itself able to reduce the viscosity of the aqueous viscoelastic fluid.
摘要翻译： 本发明涉及用于回收烃类的水性粘弹性流体。 根据本发明，该流体包括第一粘弹性表面活性剂和能够在井下条件下分解以释放化合物本身的能够降低水性粘弹性流体粘度的第二表面活性剂。
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公开(公告)号：US20130161003A1
公开(公告)日：2013-06-27
申请号：US13520328
申请日：2009-12-31
申请人： Sergey Mikhailovich Makarychev-Mikhailov , Christopher N. Fredd , Trevor Hughes , Evgeny Borisovich Barmatov , Jill F. Geddes
发明人： Sergey Mikhailovich Makarychev-Mikhailov , Christopher N. Fredd , Trevor Hughes , Evgeny Borisovich Barmatov , Jill F. Geddes
IPC分类号： E21B43/267
CPC分类号： E21B43/267 , C09K8/685 , C09K8/74 , C09K8/80 , C09K8/805 , C09K2208/30
摘要： Embodiments of hydraulic fracturing methods disclosed herein use fine mesh proppant. In one embodiment the method is used to fracture a low permeability formation. In one embodiment the method uses flocculation to improve conductivity of a fracture. In one embodiment fluid flow through the fine mesh proppant in the fracture creates a network of connected channels to improve the fracture conductivity.
摘要翻译： 本文公开的水力压裂方法的实施例使用细网支撑剂。 在一个实施方案中，该方法用于破坏低渗透性地层。 在一个实施方案中，该方法使用絮凝来改善断裂的导电性。 在一个实施方案中，通过裂缝中的细网支撑剂的流体流动产生连接通道的网络以改善断裂导电性。
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公开(公告)号：US08393395B2
公开(公告)日：2013-03-12
申请号：US12477442
申请日：2009-06-03
申请人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
发明人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
摘要： A process for hydraulic fracturing of a subterranean reservoir formation penetrated by a wellbore includes pumping a fracturing fluid or other aqueous fluid from the surface via the wellbore and into the reservoir. This fluid is an aqueous suspension of particles which each comprise an oilfield chemical distributed within an encapsulating matrix of water-insoluble carrier material. The encapsulating matrix is chosen so as to provide a delayed release of the oilfield chemical from the particles into surrounding fluid, such that oilfield chemical is liberated from the particles after they have entered the fracture. The encapsulating matrix may be a polymer which is at least partially amorphous, with a glass transition temperature below the reservoir temperature.
摘要翻译： 由井筒穿透的地下储层地层的水力压裂过程包括从表面经由井孔泵送压裂流体或其它含水流体并进入储层。 该流体是颗粒的水性悬浮液，每个颗粒包含分布在水不溶性载体材料的包封基质内的油田化学品。 选择密封基质以便将油田化学品从颗粒延迟释放到周围的流体中，使得油田化学品在进入裂缝之后从颗粒中释放出来。 封装基质可以是至少部分无定形的聚合物，其玻璃化转变温度低于储层温度。
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公开(公告)号：US20100307744A1
公开(公告)日：2010-12-09
申请号：US12477442
申请日：2009-06-03
申请人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
发明人： Thomas Cochet , Trevor Hughes , Slaheddine Kefi , Valerie Lafitte , Khooi Tan , Gary Tustin , Shiyi Wang
IPC分类号： E21B43/26 , E21B47/00 , E21B43/267
摘要： A process for hydraulic fracturing of a subterranean reservoir formation penetrated by a wellbore includes pumping a fracturing fluid or other aqueous fluid which is an aqueous suspension of particles which each comprise an oilfield chemical distributed within an encapsulating matrix of water-insoluble carrier_material from the surface via the wellbore and into the reservoir. The encapsulating matrix is chosen so as to provide a delayed release of the oilfield chemical from the particles into surrounding fluid, such that oilfield chemical is liberated from the particles after they have entered the fracture. The encapsulating matrix may be a polymer which is at least partially amorphous, with a glass transition temperature below the reservoir temperature.
摘要翻译： 由井筒穿透的地下储层地层的水力压裂过程包括泵送压裂液或其它含水流体，其是颗粒的水性悬浮液，每个颗粒包含分布在水不溶性载体材料的包封基质内的油田化学物质，从表面通过 井筒进入水库。 选择密封基质以便将油田化学品从颗粒延迟释放到周围的流体中，使得油田化学品在进入裂缝之后从颗粒中释放出来。 封装基质可以是至少部分无定形的聚合物，其玻璃化转变温度低于储层温度。
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