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公开(公告)号：EP1149059B1
公开(公告)日：2005-03-23
申请号：EP00900075.3
申请日：2000-01-05
发明人： REDDY, Baireddy, R. , SWEATMAN, Ronald, E. , HEATHMAN, James, F. , FITZGERALD, Russell, M. , CROOK, Ronald, J.
CPC分类号： C04B20/107 , C04B20/1018 , C04B28/02 , C04B28/04 , C04B40/0042 , C04B2103/30 , C04B2103/34 , C04B2111/00146 , C09K8/46 , Y02W30/92 , Y02W30/94 , C04B14/042 , C04B14/047 , C04B14/06 , C04B40/0608 , C04B14/066 , C04B18/08 , C04B18/146 , C04B22/124 , C04B24/04
摘要： Cement compositions and methods of cementing within subterranean formations penetrated by well bores wherein the flow properties of one or more dry particulate cementitious materials are improved and wherein the materials can be readily conveyed out of storage tanks and the like. A preferred composition of the present invention comprises a particulate flow enhancing additive dry-blended with one or more dry particulate cementitious materials, said flow enhancing additive being comprised of a particulate solid material carrying a flow inducing polar chemical, and a sufficient amount of water to form a pumpable slurry. The methods basically include the steps of dry-blending the particulate flow enhancing additive with the one or more dry particulate cementitious materials; forming a pumpable slurry using the one or more cementitious materials having the particulate flow enhancing additive blended therewith; pumping the slurry into a well bore; and then allowing the slurry to solidify within the subterranean formation.
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公开(公告)号：EP1511822A1
公开(公告)日：2005-03-09
申请号：EP03725442.2
申请日：2003-05-22
CPC分类号： C04B20/12 , C04B28/02 , C04B28/04 , C04B38/02 , C04B40/0633 , C04B2103/0067 , C09K8/46 , C09K8/473 , C09K8/516 , C09K8/518 , C09K8/703 , Y10S507/902 , C04B2103/42 , C04B20/10 , C04B20/1029 , C04B24/12 , C04B24/129 , C04B2103/0095 , C04B22/002 , C04B22/06 , C04B22/068 , C04B24/383 , C04B2103/48 , C04B2103/445 , C04B14/042 , C04B14/047 , C04B14/06 , C04B14/08 , C04B14/10 , C04B14/301 , C04B20/1025 , C04B20/1037 , C04B20/123 , C04B2103/10 , C04B20/1033
摘要： Improved methods of generating gas in and foaming well treating fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining one or more gas generating chemicals with the well treating fluid and combining one or more delayed encapsulated activators having selected release times with the well treating fluid containing the gas generating chemicals so that the gas generating chemicals react with the delayed encapsulated oxidizing agent activators and gas and foam are formed in the treating fluid while the treating fluid is being pumped and after being placed in the subterranean zone.
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公开(公告)号：EP0975708B1
公开(公告)日：2005-02-09
申请号：EP98908993.3
申请日：1998-03-06
申请人： BJ SERVICES COMPANY
CPC分类号： C09K8/90 , C04B24/38 , C09K8/08 , C09K8/46 , C12N9/88 , C12Y302/01004 , C12Y402/02012 , Y10S507/921 , C04B20/023
摘要： Xanthan molecules are degraded using a xanthanase enzyme complex that is stable at temperatures above 250 °F, such as those temperatures found in some wellbores and process streams. The xanthanase enzyme complex is produced by a novel soil bacterium. The xanthanase enzyme complex may be used to remove xanthan based formation damage, such as drilling filter-cakes and filtrates, or to remove xanthan based filter-cakes and/or residues present in processing equipment. The xanthanase enyzme complex may also be used to reduce the viscosity of xanthan-containing fluids, such as hydraulic fracturing fluids, blocking gels, drilling muds, and process fluids. The xanthanase enzyme complex may also be used in conjunction with other well or process treatments, such as stimulations and cementing operations, to improve the effectiveness of these treatments.
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24.发明公开
公开(公告)号：EP1465844A1
公开(公告)日：2004-10-13
申请号：EP02778278.8
申请日：2002-09-19
CPC分类号： C04B24/163 , C04B24/2676 , C04B24/2688 , C04B28/14 , C04B28/145 , C04B2103/0062 , C04B2111/0062 , C08F257/02 , C08F291/00 , C09K8/46 , E04C2/043 , Y02W30/97 , Y10S264/57 , Y10S425/241 , Y10T428/31855 , Y10T428/31938 , C04B24/2641 , C04B24/2652 , C08F212/08 , C08F236/10 , C08F236/06 , C04B18/241 , C04B38/10
摘要： Gypsum wallboard compositions are disclosed which contain functionalized styrene butadiene latex polymers. Methods for the use of the compositions in the manufacture of wallboard panels and sheets is presented.
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公开(公告)号：EP1341734B1
公开(公告)日：2004-09-08
申请号：EP01974476.2
申请日：2001-10-09
发明人： Chatterji, Jiten , Cromwell, Roger S. , Brenneis, Chad R. , King, Bobby J. , Gray, Dennis W. , Zamora, Frank
CPC分类号： C09K8/685 , C04B24/14 , C04B28/02 , C04B38/10 , C04B40/0039 , C04B2111/00017 , C04B2111/00146 , C09K8/46 , C09K8/473 , C09K8/703 , C09K8/905 , Y10S507/903 , Y10S507/922 , Y10S507/924 , C04B22/0026 , C04B22/124 , C04B22/142 , C04B22/143 , C04B22/147 , C04B24/02 , C04B20/023
摘要： The present invention provides improved foamed well cement slurries, additives and methods. The foamed well cement slurries are basically comprised of a hydraulic cement, sufficient water to form a pumpable slurry, sufficient gas to form a foam and an effective amount of an additive for foaming the slurry comprised of hydrolyzed keratin.
摘要翻译： 本发明提供了改进的发泡井水泥浆，添加剂和方法。 发泡的水泥浆体基本上由水凝水泥，足够的水以形成可泵送的浆体，足够的气体形成泡沫和有效量的添加剂用于使由水解角蛋白组成的浆体发泡。
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公开(公告)号：EP1431257A2
公开(公告)日：2004-06-23
申请号：EP03257342.0
申请日：2003-11-20
发明人： Nguyen, Philip D , Barton, Johnny A
CPC分类号： C09K8/46 , C04B28/02 , C04B2111/00284 , C09K8/572 , C09K8/575 , E21B43/02 , C04B14/06 , C04B20/002 , C04B20/0076 , C04B24/32 , C04B14/02 , C04B24/16
摘要： The current invention provides an improved permeable cement composition for formation of downhole sand screens. The improved composition includes an effective amount of a surfactant. Addition of the surfactant to the permeable cement composition yields at least a pumpable slurry with a minimal amount of water or brine solution.
摘要翻译： 本发明提供了用于形成井下砂筛的改进的渗透性水泥组合物。 改进的组合物包括有效量的表面活性剂。 将表面活性剂加入可渗透的水泥组合物中产生至少一种具有最少量的水或盐水溶液的可泵送浆料。
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公开(公告)号：EP1397577A4
公开(公告)日：2004-04-28
申请号：EP00960141
申请日：2000-07-12
申请人： CONOCOPHILLIPS CO
发明人： STEPHENS MICHAEL , PEREIRA BURTON
CPC分类号： C04B24/383 , C04B22/0053 , C04B28/02 , C09K8/46 , C09K8/473 , C04B38/00 , C04B2103/0051
摘要： Improved low density well cement slurry compositions are formed by the addition of a free-fluid inhibitor additive to a mixture comprising a hydraulic cement and water. Suitable free-fluid inhibitors are hydroxy ethyl cellulose polymers having a cps value in the range of from about 5000 to about 50,000.
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公开(公告)号：EP1176183B1
公开(公告)日：2004-03-10
申请号：EP01306324.3
申请日：2001-07-23
IPC分类号： C09K7/00 , E21B33/138
CPC分类号： C04B28/18 , C09K8/42 , C09K8/46 , C09K8/502 , Y10S106/01 , Y10S507/928 , C04B14/06 , C04B20/1051 , C04B24/32 , C04B24/36 , C04B2103/40 , C04B2103/50
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公开(公告)号：EP1375819A1
公开(公告)日：2004-01-02
申请号：EP03253307.7
申请日：2003-05-27
CPC分类号： C09K8/46 , C04B24/287 , C04B24/32 , C04B2103/0072
摘要： Subterranean zones are cemented with compositions containing biodegradable dispersants comprised of polyaspartic acid containing side chains formed by reacting one or more side chain chemicals with said polyaspartic acid.
摘要翻译： 地下区域用含有可生物降解的分散剂的组合物粘合，所述可生物降解的分散剂包含通过使一种或多种侧链化学品与所述聚天冬氨酸反应形成的侧链的聚天冬氨酸。
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公开(公告)号：EP1201618A3
公开(公告)日：2003-11-19
申请号：EP01301071.5
申请日：2001-02-07
发明人： Chatterji, Jiten , King, Bobby J. , Zamora, Frank , Anderson, Clyde R. , Bennett, Billy J. , Cromwell, Roger S.
CPC分类号： C09K8/46 , C04B16/0625 , C04B28/02 , C09K8/473 , C04B20/1018 , C04B24/128 , C04B38/10
摘要： High strength foamed well cement is formed from a slurry of hydraulic cement, hydrophilic fibers, water sufficient to form a pumpable slurry, a mixture of foaming and foam stabilizing surfactants and sufficient gas to foam the slurry.
摘要翻译： 高强度发泡井水泥由水硬性水泥，亲水纤维，足以形成可泵送浆料的水，发泡和泡沫稳定剂表面活性剂的混合物和足够的气体使浆料发泡而形成。
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