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1. 发明申请

US20140090844A1 SWELLABLE ELASTOMER AND ITS USE IN ACIDIZING OR MATRIX STIMULATION 有权
标题翻译：可溶性弹性体及其在酸化或基质刺激中的应用
公开(公告)号：US20140090844A1
公开(公告)日：2014-04-03
申请号：US13630744
申请日：2012-09-28
申请人： Fatma Daou , Bernhard Lungwitz , Olga Alexandrovna Minikh , Diankui Fu , Gregory Kubala
发明人： Fatma Daou , Bernhard Lungwitz , Olga Alexandrovna Minikh , Diankui Fu , Gregory Kubala
IPC分类号： E21B33/138 , E21B43/16 , E21B43/26
CPC分类号： E21B33/138 , C09K8/035 , C09K8/516 , C09K8/70 , C09K8/76 , C09K8/92 , E21B43/16 , E21B43/26
摘要： The current application discloses compositions and methods for treating a subterranean formation. CO2 swellable elastomers can be used in a treatment fluid to at least partially block a high permeability region, therefore improving the performance of an operation such as matrix stimulation, acidizing, and acid fracturing.
摘要翻译：本申请公开了用于处理地下地层的组合物和方法。二氧化碳可溶胀弹性体可以用于处理流体中以至少部分阻断高渗透性区域，从而改善诸如基质刺激，酸化和酸压裂的操作的性能。

2. 发明申请

US20140090895A1 COMPOSITIONS AND METHODS FOR REDUCING FLUID LOSS 有权
标题翻译：用于减少流体损失的组合物和方法
公开(公告)号：US20140090895A1
公开(公告)日：2014-04-03
申请号：US13630781
申请日：2012-09-28
申请人： Fatma Daou , Bernhard Lungwitz , Olga Alexandrovna Minikh , Diankui Fu
发明人： Fatma Daou , Bernhard Lungwitz , Olga Alexandrovna Minikh , Diankui Fu
IPC分类号： E21B33/138
CPC分类号： E21B33/138 , C09K8/035 , C09K8/50 , E21B21/003
摘要： The current application discloses compositions and methods for reducing fluid loss during subterranean operations. CO2 activated swellable elastomers can be used in subterranean operations to reduce fluid loss. In particular, the current application discloses compositions and methods for reducing lost circulation during drilling and drilling related subterranean operations.
摘要翻译：本申请公开了在地下操作期间减少流体损失的组合物和方法。 CO2活化的可膨胀弹性体可用于地下操作以减少流体损失。特别地，本申请公开了用于减少钻井和钻井相关地下操作期间的流失的组合物和方法。

3. 发明授权

US06881709B2 Viscosity reduction of viscoelastic surfactant based fluids 有权
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
IPC分类号： C09K8/536 , C09K8/62 , C09K8/72 , C09K8/74 , C09K8/92 , E21B43/26 , C09K3/00
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.

4. 发明授权

US09657557B2 Methods for servicing subterranean wells 有权
公开(公告)号：US09657557B2
公开(公告)日：2017-05-23
申请号：US13879026
申请日：2010-11-12
申请人： Vladimir Sergeevich Bugrin , Diankui Fu
发明人： Vladimir Sergeevich Bugrin , Diankui Fu
IPC分类号： E21B19/18 , E21B43/16 , C09K8/512 , C09K8/514 , E21B21/00 , E21B33/138 , C09K8/00 , C09K8/50
CPC分类号： E21B43/16 , C09K8/00 , C09K8/50 , C09K8/512 , C09K8/514 , C09K2208/08 , E21B21/003 , E21B33/138
摘要： Methods for controlling fluid flow through one or more pathways in one or more rock formations penetrated by a borehole in a subterranean well, comprise injecting into or adjacent to the formation a treatment fluid comprising at least one polysaccharide polymer; at least one crosslinker; and fibers, or a mixture of fibers and particles. The fluids are pumped into the well through a tubular body that comprises at least one flow restriction. Shearing of the treatment fluid as it passes through the flow restriction causes the viscosity to decrease, allowing the fibers to form masses that migrate to formation-rock openings such as pores, cracks, fissures and vugs. As a result, the fibrous masses are useful for curing lost circulation, providing fluid-loss control and as diverting agents.

5. 发明授权

US08312929B2 Method for single-stage treatment of siliceous subterranean formations 有权
标题翻译：硅质地层单层处理方法
公开(公告)号：US08312929B2
公开(公告)日：2012-11-20
申请号：US12019394
申请日：2008-01-24
申请人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
发明人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
IPC分类号： E21B43/28
CPC分类号： C09K8/74
摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.
摘要翻译：在处理由井眼渗透的含砂岩地层的方法中，形成包含基本上可溶于水性流体的含有布朗斯台德酸，氟化氢源及其有机酸或其盐的含水流体的处理流体。处理液含有少于约2％的流体重量的氟化物（F-），和流体重量的2％或更少的钠（Na +）。在引入处理流体之前，将处理流体作为单阶段通过井筒引入地层，而不将酸含量的流体预吹入地层中。

6. 发明授权

US07575054B2 Self diverting matrix acid 有权
标题翻译：自转基质酸
公开(公告)号：US07575054B2
公开(公告)日：2009-08-18
申请号：US11280749
申请日：2005-11-16
申请人： Michael J. Fuller , Diankui Fu , Marieliz Garcia-Lopez De Victoria , Slaheddine Kefi , Mohan K. R. Panga
发明人： Michael J. Fuller , Diankui Fu , Marieliz Garcia-Lopez De Victoria , Slaheddine Kefi , Mohan K. R. Panga
IPC分类号： E21B43/26 , E21B43/27 , C09K8/74 , C09K8/76
CPC分类号： C09K8/74 , C09K8/602 , C09K2208/30 , C09K2208/32 , Y10S507/934
摘要： A method is described for treating a subterranean formation with a low viscosity fluid system that contains a viscoelastic surfactant at a concentration too low to viscosify the fluid, but that is concentrated in the formation so that the fluid system gels. The fluid also contains a formation-dissolving agent. The fluid is used in acidizing, acid fracturing, and diversion.
摘要翻译：描述了一种用低粘度流体系统处理地下地层的方法，该系统含有浓度太低而不能使流体粘稠的粘弹性表面活性剂，但是集中在地层中，使得流体系统凝胶化。流体还含有地层溶解剂。流体用于酸化，酸压裂和分流。

7. 发明授权

US07341107B2 Viscoelastic acid 有权
标题翻译：粘弹性酸
公开(公告)号：US07341107B2
公开(公告)日：2008-03-11
申请号：US11006004
申请日：2004-12-07
申请人： Diankui Fu , Marieliz Garcia-Lopez De Victoria
发明人： Diankui Fu , Marieliz Garcia-Lopez De Victoria
IPC分类号： C09K8/68 , C09K8/74
CPC分类号： C09K8/74 , C09K2208/30
摘要： An acidic viscoelastic surfactant fluid composition is formulated with an acid, for example hydrochloric acid, a cationic surfactant, for example a quaternary amine, and a break-enabling salt, for example NH4Cl. The fluid composition has low viscosity as formulated, undergoes an increase in viscosity as the acid is consumed when it reacts with an acid-reactive material, and returns to approximately the initial viscosity as the last of the acid is consumed. The fluid composition is used as a diverting fluid or as the main treatment fluid in oilfield treatments such as matrix acidizing and acid fracturing.
摘要翻译：酸性粘弹性表面活性剂流体组合物与酸（例如盐酸），阳离子表面活性剂（例如季胺）和能使裂解的盐例如NH 4 Cl配制。流体组合物具有如下配制的低粘度，当酸与酸反应性材料反应时消耗酸，粘度增加，并随着酸的最后消耗而恢复到大致的初始粘度。流体组合物用作转移流体或作为油田处理中的主要处理流体，例如基质酸化和酸压裂。

8. 发明授权

US06903054B2 Reservoir treatment fluids 有权
标题翻译：水库处理液
公开(公告)号：US06903054B2
公开(公告)日：2005-06-07
申请号：US10231569
申请日：2002-08-30
申请人： Diankui Fu , Marieliz Garcia-Lopez de Victoria
发明人： Diankui Fu , Marieliz Garcia-Lopez de Victoria
IPC分类号： C09K8/60 , C09K8/74 , C09K8/78 , C09K3/00
CPC分类号： C09K8/74 , C09K8/602 , C09K8/78
摘要： A method of treating a hydrocarbon-containing formation is disclosed. The method includes injecting a well treating fluid into a well, wherein the well treating fluid includes a self-diverting acid that includes about 1% to 30% by weight of at least one acid selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, citric acid, maleic acid, hydrofluoric acid and mixtures thereof; and about 1% to 20% by volume of at least one viscoelastic surfactant selected from a family of compounds described by where R3 contains at least 10 carbon atoms, p=1-6, R2 contains 1-6 carbon atoms and R1 contains 1-6 carbon atoms; and about 0.7% to 20% by weight scale inhibitor.
摘要翻译：公开了一种处理含烃地层的方法。该方法包括将井处理流体注入井中，其中井处理流体包括自转向酸，其包含约1重量％至30重量％的至少一种选自盐酸，硫酸，磷酸，甲酸，乙酸，柠檬酸，马来酸，氢氟酸及其混合物; 和约1体积％至20体积％的至少一种粘弹性表面活性剂，其选自由其中R 3至少含有10个碳原子的化合物族群，p = 1-6， 2 含有1-6个碳原子，R 1包含1-6个碳原子; 和约0.7重量％至20重量％的阻垢剂。

9. 发明授权

US06608005B2 Wellbore fluids and their application 有权
公开(公告)号：US06608005B2
公开(公告)日：2003-08-19
申请号：US09829268
申请日：2001-04-09
申请人： Bentley J. Palmer , Diankui Fu , Roger Card , Edgar Volpert
发明人： Bentley J. Palmer , Diankui Fu , Roger Card , Edgar Volpert
IPC分类号： C09K300
CPC分类号： C09K8/34 , C09K8/32 , Y10S507/925
摘要： Non-aqueous base wellbore fluids characterized by enhanced electrical conductivity due to formulation with specified ionic liquids are disclosed. Drilling, completion, and workover methods utilizing the wellbore fluids are also disclosed.

10. 发明授权

US06350721B1 Fluids and techniques for matrix acidizing 有权
标题翻译：用于基质酸化的流体和技术
公开(公告)号：US06350721B1
公开(公告)日：2002-02-26
申请号：US09203301
申请日：1998-12-01
申请人： Diankui Fu , Roger J. Card
发明人： Diankui Fu , Roger J. Card
IPC分类号： C09K300
CPC分类号： C09K8/86 , C09K8/72 , Y10S507/933
摘要： Liquids comprised solely of anions and cations (“ionic liquids”) are disclosed as novel components of fluids (and techniques relying upon those fluids) for stimulation of hydrocarbon wells. In particular, the fluids disclosed are useful in matrix acidizing. Formation of the ionic liquids of the present Invention is highly exothermic, hence the heat generated can be used, for instance, to melt de-watered drilling fluid in the near-wellbore region of the formation. Further, reaction of the ionic liquids with water results in acid generation; this acid can be used to, for instance, to stimulate a formation, either by conventional matrix acidizing or fracture acidizing. In addition, certain preferred species of the ionic liquids of the present Invention are highly stable solvents, hence they can be used as carrier fluids for highly reactive super acids (e.g., SbF5+HF) in connection with matrix acidizing.
摘要翻译：公开了仅由阴离子和阳离子（“离子液体”）组成的液体作为用于刺激烃井的流体（和依赖于这些流体的技术）的新组件。特别地，所公开的流体可用于基质酸化。本发明的离子液体的形成是高度放热的，因此所产生的热可用于例如在地层的近井筒区域熔化脱水钻井液。此外，离子液体与水的反应导致产生酸; 该酸可用于例如通过常规的基质酸化或断裂酸化来刺激形成。此外，本发明的某些优选种类的离子液体是高度稳定的溶剂，因此它们可以用作与基质酸化有关的高反应性超强酸（例如SbF 5 + HF）的载体流体。

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