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1. 发明申请

US20110180256A1 CHROME FREE WATER-BASED WELLBORE FLUID 审中-公开
标题翻译：基于无铬水的井筒
公开(公告)号：US20110180256A1
公开(公告)日：2011-07-28
申请号：US13122604
申请日：2009-10-13
申请人： Ahmadi Tehrani , Donna Gerrard , Steven Young , Jorge Fernandez
发明人： Ahmadi Tehrani , Donna Gerrard , Steven Young , Jorge Fernandez
IPC分类号： E21B43/241
CPC分类号： C09K8/24 , C09K8/12 , C09K8/145 , C09K8/203
摘要： Methods for maintaining the rheology and reducing the fluid loss of chrome-free, aqueous-based wellbore fluids under high temperature-high pressure conditions are disclosed. The method may comprise formulating the chrome-free, aqueous wellbore fluid with an aqueous base fluid, at least one chrome-free viscosifier, at least one chrome-free fluid loss control additive, at least one chrome-free dispersant; and circulating the chrome-free aqueous-based wellbore fluid in a wellbore at temperatures exceeding 300° F.
摘要翻译：公开了在高温高压条件下维持流变性和减少无铬水基井筒流体的流体损失的方法。该方法可以包括用含水基础流体，至少一种无铬粘稠剂，至少一种无铬流体损失控制添加剂，至少一种无铬分散剂来配制无铬水性井眼流体; 并在超过300°F的温度下将无铬水基井筒流体循环在井眼中。

2. 发明申请

US20080194433A1 METHOD FOR VISCOSIFYING INVERT EMULSION DRILLING FLUIDS 审中-公开
标题翻译：粘弹性乳化液钻井液的方法
公开(公告)号：US20080194433A1
公开(公告)日：2008-08-14
申请号：US12028353
申请日：2008-02-08
申请人： Ahmadi Tehrani
发明人： Ahmadi Tehrani
IPC分类号： C09K8/12
CPC分类号： C09K8/36
摘要： An invert emulsion drilling fluid including an oleaginous fluid, wherein the oleaginous fluid is the continuous external phase of the drilling fluid; a non-oleaginous fluid, wherein the non-oleaginous fluid is the discontinuous internal aqueous phase of the drilling fluid containing water and at least one organic or inorganic salt dissolved in the water; and an aqueous-phase viscosifier, wherein the aqueous-phase viscosifier is selected from the group consisting of a biopolymer, a salt tolerant clay, and a synthetic polymer, and wherein the aqueous-phase viscosifier is dispersed in the non-oleaginous fluid in a sufficient concentration to increase a low shear viscosity of the invert emulsion drilling fluid.
摘要翻译：包括含油流体的反相乳液钻井液，其中所述油质流体是所述钻井液的连续外部相; 非油质流体，其中所述非油质流体是含有水和至少一种溶解在水中的有机或无机盐的钻井液的不连续的内部水相; 和水相增粘剂，其中所述水相增粘剂选自生物聚合物，耐盐粘土和合成聚合物，并且其中所述水相增粘剂分散在所述非油性流体中足够的浓度以增加反相乳液钻井液的低剪切粘度。

3. 发明申请

US20100099585A1 AQUEOUS BASE WELLBORE FLUIDS FOR HIGH TEMPERATURE-HIGH PRESSURE APPLICATIONS AND METHODS OF USE 审中-公开
标题翻译：用于高温高压应用的水性基底板流体和使用方法
公开(公告)号：US20100099585A1
公开(公告)日：2010-04-22
申请号：US12531453
申请日：2008-03-20
申请人： Ahmadi Tehrani
发明人： Ahmadi Tehrani
IPC分类号： C09K8/12 , C09K8/60 , C09K8/24
CPC分类号： C09K8/12
摘要： Embodiments disclosed herein related to an aqueous based well bore fluid that includes at least one ionized polymer, at least one non-ionic polymer, a non-magnetic weighting agent, and an aqueous base fluid.
摘要翻译：本文公开的实施方案涉及包含至少一种离子化聚合物，至少一种非离子聚合物，非磁性加重剂和基础水溶液的基于水的井眼流体。

4. 发明申请

US20080164067A1 Method for Reducing Aqueous Content of Oil-Based Fluids 审中-公开
标题翻译：降低油基液含水量的方法
公开(公告)号：US20080164067A1
公开(公告)日：2008-07-10
申请号：US11621558
申请日：2007-01-09
申请人： Ahmadi Tehrani
发明人： Ahmadi Tehrani
IPC分类号： E21B7/00
CPC分类号： E21B21/068
摘要： A method for reducing the aqueous content of oil-based drilling fluid includes contacting an invert emulsion wellbore fluid with a water absorbing polymer, interacting the water absorbing polymer with the wellbore fluid for a sufficient period of time so that the water absorbing polymer absorbs at least a portion of the aqueous fluid form the wellbore fluid; and separating the water absorbing polymer containing the absorbed water from the wellbore fluid.
摘要翻译：降低油基钻井液含水量的方法包括将乳化井眼流体与吸水聚合物接触，使吸水聚合物与井眼流体相互作用足够长的时间，以使吸水聚合物至少吸收水流体的一部分形成井筒流体; 并将含有吸收的水的吸水性聚合物与井筒流体分离。

5. 发明授权

US06793025B2 Double emulsion based drilling fluids 有权
标题翻译：双乳液基钻井液
公开(公告)号：US06793025B2
公开(公告)日：2004-09-21
申请号：US10172837
申请日：2002-06-17
申请人： Arvind D. Patel , Reginald J. Bell , Steve Young , Ahmadi Tehrani
发明人： Arvind D. Patel , Reginald J. Bell , Steve Young , Ahmadi Tehrani
IPC分类号： C09K706
CPC分类号： E21B17/003 , C09K8/32 , C09K2208/14 , E21B47/0006 , E21B47/12 , G01V3/20 , Y10S507/904
摘要： A method of electrically logging subterranean wells using a conductive double emulsion fluid includes a miscible combination of an oleaginous fluid, an emulsifier capable of forming a microemulsion, an emulsifier capable of forming an invert emulsion, and an electrolytic salt. A microemulsion is the continuous phase of an invert emulsion. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The fluid may additionally contain a polar organic solvent and a carbon dioxide buffer. The polar organic solvent may be an oil soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol, polypropylene glycol, and the like. The electrolytic salt preferably is a quaternary amine salt having the formula: wherein R is an alkyl having 8 to 18 carbon atoms, R′ is 2 to 6 carbon atoms alkyl group, B is hydrogen, oxyalkyl having 1 to 4 carbon atoms or alkyl having 1 to 4 carbon atoms, A is hydrogen or alkyl with 1 to 4 carbon atoms, x+y=1 to 15, z is 0 to 3, and M− is a counter anion; or combinations thereof. In such instances the quaternary amine salt serves both as the electrolyte and the microemulsifer. The carbon dioxide buffer is preferably a trialkylanol amine.
摘要翻译：使用导电双乳液流体对地下井进行电测井的方法包括油性流体，能够形成微乳液的乳化剂，能够形成反相乳液的乳化剂和电解质盐的可混溶组合。微乳液是反相乳液的连续相。盐的电解盐或盐水的存在浓度足以允许对地下井进行电测井。流体可另外含有极性有机溶剂和二氧化碳缓冲液。极性有机溶剂可以是油溶性二醇或二醇醚，例如乙二醇，二甘醇，丙二醇，聚丙二醇等。电解盐优选是具有下式的季胺盐：其中R是具有8至18个碳原子的烷基，R'是2至6个碳原子的烷基，B是氢，具有1至4个碳原子的烷氧基或具有 1至4个碳原子，A为氢或具有1至4个碳原子的烷基，x + y = 1至15，z为0至3，M 1为抗衡阴离子; 或其组合。在这种情况下，季胺盐既用作电解质又用作微乳剂。二氧化碳缓冲液优选为三烷基醇胺。

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