-
公开(公告)号：US20050049327A1
公开(公告)日：2005-03-03
申请号：US10927613
申请日：2004-08-26
申请人： Vladimir Jovancicevic , Steven Weghorn , Paul Hart
发明人： Vladimir Jovancicevic , Steven Weghorn , Paul Hart
CPC分类号： C10L1/1963 , C10L1/1973 , C10L1/2362 , C10L1/2364 , C10L1/2366 , C10L1/2468 , F17D1/17
摘要： A process for using high molecular weight, anionic, hydrophilic polymers without formation of deleterious emulsions to facilitate flow in multiphase pipelines containing both oil and water (e.g., oil/water, oil/water/gas, oil/water/solids, and oil/water/gas/solids) such as are used for oil or gas production, gathering, and transmission; hydrotransport of oilsand or heavy oil slurries is described. Specific examples of suitable drag reducing polymers include anionic, hydrophilic polyacrylamides having a molecular weight of greater than 1 megadalton.
摘要翻译： 一种使用高分子量阴离子聚合物而不形成有害乳液以促进含有油和水的多相管道（例如油/水，油/水/气体，油/水/固体和油/ 水/气/固体），如用于石油或天然气的生产，收集和传输; 描述了油和/或重油浆料的水运。 合适的减阻聚合物的具体实例包括分子量大于1兆道尔顿的阴离子型亲水性聚丙烯酰胺。
-
公开(公告)号：US06645399B2
公开(公告)日：2003-11-11
申请号：US10023130
申请日：2001-12-17
IPC分类号： C23F1116
CPC分类号： C09K8/54 , C23F11/10 , C23F11/161
摘要： Compositions and methods have been discovered for inhibiting corrosion of metals, particularly iron alloys, in contact with fluids, either hydrocarbons, alcohols, or aqueous fluids, employing mercaptoalcohols. The mercaptoalcohols should have at least one water solubilizing hydroxyl group. In particular, suitable mercaptoalcohols have the formula: (HS)n—R—)(OH)m where R is a straight, branched, cyclic or heterocyclic alkylene, arylene, alkylarylene, arylalkylene, or hydrocarbon moiety having from 1 to 30 carbon atoms; n and m each independently averages from 1 to 3; and the heteroatom in the heterocyclic moiety substituent, if present, may be N, O, S and/or P. Preferred mercaptoalcohols include 2-mercaptoethanol, 2-mercaptopropanol, 1-mercapto-2-propanol, and 2-mercaptobutanol, in part because they are soluble in many fluids. These corrosion inhibitors show improved inhibition of both generalized and localized corrosion, specifically in high shear and high flow environments.
-
公开(公告)号：US06280603B1
公开(公告)日：2001-08-28
申请号：US09457986
申请日：1999-12-09
IPC分类号： G01N1704
CPC分类号： G01N17/02
摘要： The present invention relates to a unique electrochemical noise corrosion rate determination technique and system. The system employs a single working electrode, a counter electrode, a reference electrode, and a measurement system for determining potential between the working and reference electrodes and current between the working and counter electrodes. The technique comprises measuring the potential between the working and reference electrodes at open circuit over a given period of time, switching to potentiostatic control, measuring the current between the working and counter electrodes, and using the measured potential and current to determine the general corrosion rate and localized corrosion rates.
摘要翻译： 本发明涉及一种独特的电化学噪声腐蚀速率测定技术和系统。 该系统采用单个工作电极，对电极，参考电极和用于确定工作电极和参考电极之间的电位和工作电极和对电极之间的电流的测量系统。 该技术包括在给定时间段内测量开路处的工作电极和参考电极之间的电位，切换到恒电位控制，测量工作电极和对电极之间的电流，以及使用测量的电位和电流来确定一般腐蚀速率 和局部腐蚀速率。
-
公开(公告)号：US5135681A
公开(公告)日：1992-08-04
申请号：US782362
申请日：1991-10-24
IPC分类号： C07C59/305 , C23F11/12
CPC分类号： C23F11/126 , C07C59/305
摘要： A method is disclosed for inhibiting corrosion of a ferrous based metal in contact with an aqueous system comprising incorporating into the aqueous system an effective amount of a substituted carboxymethoxysuccinic acid selected from the group consisting of compounds having the formula: ##STR1## wherein R is --(CHOH).sub.n CH.sub.2 OH, --(CHOH).sub.m CO.sub.2 H or --(CHOH).sub.r (CHOR')CO.sub.2 H and R' is CH(CO.sub.2 H)CH.sub.2 CO.sub.2 H; n is 1,2,3 or 4; m is 1,2,3, or 4; r is 1,2, or 3; and water soluble salts thereof.
摘要翻译： 公开了一种用于抑制与含水系统接触的含铁基金属的腐蚀的方法，包括将有效量的取代的羧基甲氧基琥珀酸加入到水性体系中，所述取代的羧基甲氧基琥珀酸选自具有下式的化合物：其中R为 - （CHOH）n CH 2 OH， - （CHOH）mCO 2 H或 - （CHOH）r（CHOR'）CO 2 H，R'是CH（CO 2 H）CH 2 CO 2 H; n为1,2,3或4; m为1,2,3或4; r为1,2或3; 及其水溶性盐。
-
-
-
搜索结果
54 条记录 (耗时 0.015 秒)
