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公开(公告)号：EP1846532B1
公开(公告)日：2013-09-18
申请号：EP06710714.4
申请日：2006-01-20
申请人： SERVICES PETROLIERS SCHLUMBERGER, (formerly Société de Prospection Electrique Schlumberger) , Schlumberger Holdings Limited , Schlumberger Technology B.V.
发明人： PENA, Alejandro , SALAMAT, Golchehreh , LIN, Lijun
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公开(公告)号：EP2550341A4
公开(公告)日：2013-08-07
申请号：EP11759900
申请日：2011-03-11
申请人： CHEVRON USA INC
发明人： CORNETTE H MITCHELL , GARDNER CRAIG , BLOYS BEN , COLUDROVICH EARL , CORBETT THOMAS G , BERGERON HENRY
CPC分类号： C09K8/03 , C09K8/32 , C09K8/52 , C09K8/70 , C09K2208/04 , C09K2208/10 , C09K2208/32
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公开(公告)号：EP2491091A4
公开(公告)日：2013-04-03
申请号：EP10825504
申请日：2010-10-19
申请人： NALCO CO
摘要： Methods of treating hydrocarbon fluids to reduce the apparent viscosity of hydrocarbon fluids encountered in petroleum operations and reducing deposits within a well annulus or a pipeline are disclosed. The method comprises contacting such fluids with a hydrophobically modified polysaccharide to create water external emulsions. The disclosed hydrophobically modified polysaccharides have been demonstrated to reduce interfacial tension to below 65 mN/m and thereby improve the transportability of inherently viscous hydrocarbon fluids, such as heavy crude oils.
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公开(公告)号：EP2084139B1
公开(公告)日：2013-02-13
申请号：EP07854109.1
申请日：2007-10-17
IPC分类号： C07D265/28 , E21B37/06 , C07C7/20 , C07D263/06 , C10L3/06 , C09K8/52 , C10L1/233
CPC分类号： C07D263/06 , C07C7/20 , C09K8/52 , C09K2208/22 , C10L1/233 , C10L3/06
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公开(公告)号：EP2445984A1
公开(公告)日：2012-05-02
申请号：EP10721999.0
申请日：2010-05-19
IPC分类号： C09K8/52 , C08F220/28 , C10L3/06
CPC分类号： C09K8/52 , C08F220/26 , C08F220/58 , C08F226/10 , C08F230/02 , C09K2208/22 , C10L1/198 , C10L1/2364 , C10L1/2368 , C10L3/003
摘要： The invention relates to the use of polymers, containing between 1 and 100 mol% of structural units of the formula (1), wherein R
1 means hydrogen or C
1 -C
6 alkyl, A means C
2 -C
4 alkylene groups, and B means C
2 -C
4 alkylene groups, with the stipulation that A is different from B, and x and y mean an integer from 1 to 100 independent of each other, in amounts of 0.01 to 2 wt% relative to the water phase, as gas hydrate inhibitors.-
36.发明公开
公开(公告)号：EP2185276A4
公开(公告)日：2011-04-27
申请号：EP08796478
申请日：2008-07-23
申请人： MI LLC
CPC分类号： E21B21/068 , C09K8/52 , E21B21/066
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公开(公告)号：EP2084139A4
公开(公告)日：2010-12-01
申请号：EP07854109
申请日：2007-10-17
申请人： BAKER HUGHES INC
发明人： RIVERS GORDON T , TIAN JUN , HACKEROTT JAMES A
IPC分类号： C07D265/28 , E21B37/06
CPC分类号： C07D263/06 , C07C7/20 , C09K8/52 , C09K2208/22 , C10L1/233 , C10L3/06
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公开(公告)号：EP2137526A2
公开(公告)日：2009-12-30
申请号：EP08842567.3
申请日：2008-09-29
申请人： Services Pétroliers Schlumberger , Schlumberger Holdings Limited , Schlumberger Technology B.V. , Prad Research And Development Limited
发明人： MULLINS, Oliver C. , GUSTAVSON, Gale H. , HARRISON, Christopher , RAGHURAMAN, Bhavani , VAN HAL, Ronald E.G. , LAWRENCE, Jimmy , LADAVAC, Kosta , ANDREWS, A. Ballard , JONES, Timothy Gareth John , RAMOS, Rogerio Tadeu
CPC分类号： G01N31/224 , C09K8/52 , C09K2208/20 , E21B49/08 , G01N21/77 , G01N21/78 , G01N2021/7763 , G01N2021/7773 , G01N2021/7786
摘要： Methods and related apparatuses and mixtures are described for detecting hydrogen sulfide in a formation fluid downhole. A detection mixture is combined with the formation fluid downhole. The detection mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and charged nanoparticles sized so as to inhibit significant aggregation of the metal sulfide so as to enable spectroscopic detection of the metal sulfide downhole. The combined mixture and formation fluid is then spectroscopically interrogated so as to detect the presence of the metal sulfide thereby indicating the presence of hydrogen sulfide in the formation fluid. The mixture also includes chelating ligands for sustaining thermal endurance of the mixture under downhole conditions.
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39.发明公开CROSSLINKED ACIDS COMPRISING DERIVATIZED XANTHAN AND SUBTERRANEAN ACIDIZING APPLICATIONS 审中-公开跟酸衍生的黄原胶和地下ANSÄUERUNGSANWENDUNGEN
公开(公告)号：EP2113016A1
公开(公告)日：2009-11-04
申请号：EP08709475.1
申请日：2008-02-20
发明人： WELTON, Thomas, D.
CPC分类号： C09K8/685 , C09K8/52 , C09K8/70 , C09K8/74 , C09K8/887 , C09K8/90 , C09K2208/22 , C23F11/04 , C23F11/173
摘要： Methods are disclosed herein including, in one embodiment, the method comprising: providing a fluid that comprises an acid, crosslinked oxidized xanthan, and optionally, a base fluid; placing the fluid in a well bore penetrating a subterranean formation; and allowing the fluid to acidize at least a portion of the formation or damage contained therein. In another embodiment, herein provided is a fluid for subterranean uses comprising an acid and crosslinked, oxidized xanthan.
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公开(公告)号：EP1819898A4
公开(公告)日：2009-07-29
申请号：EP05852970
申请日：2005-12-06
申请人： BAKER HUGHES INC
CPC分类号： F17D1/17 , C09K8/52 , Y10T137/0357 , Y10T137/0391 , Y10T137/3003
摘要： Disclosed is a method and system for controlling the formation of liquid or gas slugs along a pipeline. In embodiments, an injection unit injects a liquid surface tension reducing agent, such as a foamant, into the pipeline upstream of the high point. A control unit can be used to control the injection unit. In certain arrangements, the control unit adjusts the injection of the agent based on measured parameters of interest. In embodiments where the control unit utilizes temperature measurements, one or more temperature sensors are positioned along the pipeline. The control unit utilizes the temperature measurements to determine whether a predetermined condition exists or a liquid or gas slug is present.
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