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公开(公告)号：US20150240149A1
公开(公告)日：2015-08-27
申请号：US14187544
申请日：2014-02-24
Applicant: Baker Hughes Incorporated
Inventor： Qi Qu , Leiming Li , Hong Sun , Magnus Legemah , Jia Zhou
CPC classification number: C09K8/685 , C09K8/70 , C09K8/887 , C09K2208/26 , E21B43/25 , E21B43/26 , E21B43/267
Abstract: A method includes forming a well treatment fluid by combining an aqueous fluid, a viscosifying agent, a crosslinker, and a rheology modifier containing an aldehyde. The viscosifying agent is crosslinked, increasing viscosity of the fluid. The method includes treating a well with the fluid exhibiting the increased viscosity, chemically changing the aldehyde after the crosslinking and thereby forming an acid, and decreasing viscosity of the crosslinked fluid as a result of forming the acid. The aldehyde may be glyoxal which forms oxalic acid, breaking a crosslink. A well treatment fluid is formulated with ingredients including an aqueous fluid and a viscosifying agent and a crosslinker configured to crosslink the viscosifying agent. The fluid includes a rheology modifier containing an aldehyde. The fluid may lack an aldehyde crosslinking delay additive.
Abstract translation: 一种方法包括通过组合水性流体，增粘剂，交联剂和含醛的流变改性剂来形成井处理流体。 增粘剂交联，增加流体的粘度。 该方法包括用显示增加粘度的流体处理井，在交联后化学改变醛，从而形成酸，并且由于形成酸而降低交联流体的粘度。 醛可以是形成草酸的乙二醛，破坏交联。 用良好的处理液配制含有水性流体和增粘剂的成分，以及配置成交联增稠剂的交联剂。 流体包括含有醛的流变改性剂。 流体可能缺少醛交联延迟添加剂。
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公开(公告)号：US09394476B2
公开(公告)日：2016-07-19
申请号：US14187544
申请日：2014-02-24
Applicant: BAKER HUGHES INCORPORATED
Inventor： Qi Qu , Leiming Li , Hong Sun , Magnus Legemah , Jia Zhou
CPC classification number: C09K8/685 , C09K8/70 , C09K8/887 , C09K2208/26 , E21B43/25 , E21B43/26 , E21B43/267
Abstract: A method includes forming a well treatment fluid by combining an aqueous fluid, a viscosifying agent, a crosslinker, and a rheology modifier containing an aldehyde. The viscosifying agent is crosslinked, increasing viscosity of the fluid. The method includes treating a well with the fluid exhibiting the increased viscosity, chemically changing the aldehyde after the crosslinking and thereby forming an acid, and decreasing viscosity of the crosslinked fluid as a result of forming the acid. The aldehyde may be glyoxal which forms oxalic acid, breaking a crosslink. A well treatment fluid is formulated with ingredients including an aqueous fluid and a viscosifying agent and a crosslinker configured to crosslink the viscosifying agent. The fluid includes a rheology modifier containing an aldehyde. The fluid may lack an aldehyde crosslinking delay additive.
Abstract translation: 一种方法包括通过组合水性流体，增粘剂，交联剂和含醛的流变改性剂来形成井处理流体。 增粘剂交联，增加流体的粘度。 该方法包括用显示增加粘度的流体处理井，在交联后化学改变醛，从而形成酸，并且由于形成酸而降低交联流体的粘度。 醛可以是形成草酸的乙二醛，破坏交联。 用良好的处理液配制含有水性流体和增粘剂的成分，以及配置成交联增稠剂的交联剂。 流体包括含有醛的流变改性剂。 流体可能缺少醛交联延迟添加剂。
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Patent Agency Ranking
公开(公告)号：US20160289548A1
公开(公告)日：2016-10-06
申请号：US15178140
申请日：2016-06-09
Applicant: BAKER HUGHES INCORPORATED
Inventor： Qi Qu , Leiming Li , Hong Sun , Magnus Legemah , Jia Zhou
IPC: C09K8/68 , E21B43/26 , E21B43/267 , C09K8/88
CPC classification number: C09K8/685 , C09K8/70 , C09K8/887 , C09K2208/26 , E21B43/25 , E21B43/26 , E21B43/267
Abstract: A method includes forming a well treatment fluid by combining an aqueous fluid, a viscosifying agent, a crosslinker, and a rheology modifier containing an aldehyde. The viscosifying agent is crosslinked, increasing viscosity of the fluid. The method includes treating a well with the fluid exhibiting the increased viscosity, chemically changing the aldehyde after the crosslinking and thereby forming an acid, and decreasing viscosity of the crosslinked fluid as a result of forming the acid. The aldehyde may be glyoxal which forms oxalic acid, breaking a crosslink. A well treatment fluid is formulated with ingredients including an aqueous fluid and a viscosifying agent and a crosslinker configured to crosslink the viscosifying agent. The fluid includes a rheology modifier containing an aldehyde. The fluid may lack an aldehyde crosslinking delay additive.
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公开(公告)号：US20130220621A1
公开(公告)日：2013-08-29
申请号：US13736799
申请日：2013-01-08
Applicant: Baker Hughes Incorporated
Inventor： Magnus Legemah , Hong Sun , Michael Guerin
Abstract: Polyboronic compounds useful as delayed crosslinking agents may be produced by using a polyamine as base scaffold and incorporating boron via reaction with intermediate borates which may be formed in the condensation reaction between boric acid and a diol. A di-aldehyde, such as glyoxal, may be introduced following caustic treatment of the reaction mixture of polyaminoboronate to form the polyboronic compound.
Abstract translation: 可用作延迟交联剂的多硼化合物可以通过使用多胺作为基础支架并通过与可能在硼酸和二醇之间的缩合反应中形成的中间体硼酸盐反应引入硼来制备。 可以在苛性碱处理聚氨基硼酸盐的反应混合物以形成多硼化合物之后引入二醛，例如乙二醛。
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公开(公告)号：US10233385B2
公开(公告)日：2019-03-19
申请号：US14753942
申请日：2015-06-29
Applicant: BAKER HUGHES INCORPORATED
Inventor： Leiming Li , Magnus Legemah , Jia Zhou , Xiaolan Wang , Ahmed Gomaa , Hong Sun
Abstract: A well servicing fluid includes ingredients including a GLDA salt, a crosslinker, and a viscosifying agent that is not crosslinked by the crosslinker. A well treatment method includes forming a well servicing fluid with ingredients including a GLDA salt, a viscosifying agent, and a crosslinker, the GLDA salt containing a metal cation chelated with a GLDA anion. The well servicing fluid is inserted into a well in a formation. The method includes crosslinking the viscosifying agent and attaining a first viscosity of the well servicing fluid using the crosslinker. After the attaining of the first viscosity, viscosity of the well servicing fluid in the well is decreased to a second viscosity less than the first viscosity by using the GLDA anion. The GLDA salt may be a GLDA calcium salt and the crosslinker may be a zirconium crosslinker.
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公开(公告)号：US09534167B2
公开(公告)日：2017-01-03
申请号：US13736799
申请日：2013-01-08
Applicant: Baker Hughes Incorporated
Inventor： Magnus Legemah , Hong Sun , Michael Guerin
Abstract: Polyboronic compounds useful as delayed crosslinking agents may be produced by using a polyamine as base scaffold and incorporating boron via reaction with intermediate borates which may be formed in the condensation reaction between boric acid and a diol. A di-aldehyde, such as glyoxal, may be introduced following caustic treatment of the reaction mixture of polyaminoboronate to form the polyboronic compound.
Abstract translation: 可用作延迟交联剂的多硼化合物可以通过使用多胺作为基础支架并通过与可能在硼酸和二醇之间的缩合反应中形成的中间体硼酸盐反应引入硼来制备。 可以在苛性碱处理聚氨基硼酸盐的反应混合物以形成多硼化合物之后引入二醛，例如乙二醛。
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公开(公告)号：US20160376881A1
公开(公告)日：2016-12-29
申请号：US14753942
申请日：2015-06-29
Applicant: BAKER HUGHES INCORPORATED
Inventor： Leiming Li , Magnus Legemah , Jia Zhou , Xiaolan Wang , Ahmed Gomaa , Hong Sun
Abstract: A well servicing fluid includes ingredients including a GLDA salt, a crosslinker, and a viscosifying agent that is not crosslinked by the crosslinker. A well treatment method includes forming a well servicing fluid with ingredients including a GLDA salt, a viscosifying agent, and a crosslinker, the GLDA salt containing a metal cation chelated with a GLDA anion. The well servicing fluid is inserted into a well in a formation. The method includes crosslinking the viscosifying agent and attaining a first viscosity of the well servicing fluid using the crosslinker. After the attaining of the first viscosity, viscosity of the well servicing fluid in the well is decreased to a second viscosity less than the first viscosity by using the GLDA anion. The GLDA salt may be a GLDA calcium salt and the crosslinker may be a zirconium crosslinker.
Abstract translation: 维护良好的流体包括成分，包括GLDA盐，交联剂和不由交联剂交联的增粘剂。 井处理方法包括用包含GLDA盐，增粘剂和交联剂的成分形成维护良好的流体，所述GLDA盐含有与GLDA阴离子螯合的金属阳离子。 将维护良好的液体插入地层中的井中。 该方法包括使用交联剂交联增粘剂并获得维修液的第一粘度。 在达到第一粘度之后，通过使用GLDA阴离子，井中维修液的粘度降低到小于第一粘度的第二粘度。 GLDA盐可以是GLDA钙盐，交联剂可以是锆交联剂。
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