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公开(公告)号：US07188673B2
公开(公告)日：2007-03-13
申请号：US11374044
申请日：2006-03-14
IPC分类号： E21B33/138 , E21B43/22
CPC分类号： C09K8/5753 , C09K8/5083
摘要： A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I), wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H and CH3; R1, R2, R3, the same or different, are selected from C1–C10 monofunctional hydrocarbyl groups; and x ranges from 2 to 5.
摘要翻译： 描述了一种用于减少油井中的水的产生的方法，其包括将一种或多种选自具有通式（I）的聚合物的一种或多种聚合物的水溶液注入井内的地层中，其中n在0.70至0.98范围内 ; m范围为0.30〜0.02; n + m = 1; X 1和X 2相同或不同，选自H和CH 3; R 1，R 2，R 3，R 3，R 3，R 3，R 3，R 3，R 3相同或不同，选自C 1 -C 3， 单官能烃基; x的范围为2到5。
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公开(公告)号：US07004253B2
公开(公告)日：2006-02-28
申请号：US10474319
申请日：2002-05-13
IPC分类号： E21B33/138 , E21B43/22
CPC分类号： C09K8/882 , C09K8/5083 , C09K8/5753
摘要： A process is described for reducing the production of water in oil wells, with temperatures of up to (90° C.), which comprises the injection in the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I) wherein: n ranges from (0.40) to (0.70), preferably from (0.5) to (0.65); m ranges from (0.15) to (0.65), preferably from (0.3) to (0.5); p ranges from (0.02) to (0.20), preferably from (0.05) to (0.10); n+m+p=1; x1 is selected from H and CH3; R1, R2 the same or different, are selected from C1–C10 monofunctional hydrocarbyl groups
摘要翻译： 描述了一种用于减少油井中水的产生的方法，其温度高达（90℃），其包括在一个或多个聚合物的水溶液中围绕井的注入，所述聚合物选自具有通式 式（I）其中：n为（0.40）至（0.70），优选为（0.5）至（0.65）; m为（0.15）〜（0.65），优选为（0.3）〜（0.5）。 p范围为（0.02）〜（0.20），优选为（0.05）〜（0.10）; n + m + p = 1; x 1选自H和CH 3; R 1，R 2，R 2相同或不同，选自C 1 -C 10 - 单官能烃基< chemistry id =“CHEM-US-00001”num =“000
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公开(公告)号：US20050098320A1
公开(公告)日：2005-05-12
申请号：US10478321
申请日：2002-05-10
CPC分类号： C09K8/5753 , C09K8/5083
摘要： A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (1) [ ] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.
摘要翻译： 描述了一种用于降低油井中水的产生的方法，其包括将一种或多种选自具有通式（1）[]的那些的聚合物的水溶液注入井周围的地层中，其中：n的范围为0.70至 0.98; m范围为0.30〜0.02; n + m = 1; X 1和X 2相同或不同，选自H 3，CH 3， R 1，R 2，R 3，R 3，R 3，R 3，R 3，R 3，R 3相同或不同，选自C 1 -C 3， 单官能烃基; x的范围从2到5。
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公开(公告)号：US20060157245A1
公开(公告)日：2006-07-20
申请号：US11374044
申请日：2006-03-14
IPC分类号： E21B33/138
CPC分类号： C09K8/5753 , C09K8/5083
摘要： A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (1) [] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.
摘要翻译： 描述了一种用于降低油井中水的产生的方法，其包括将一种或多种选自具有通式（1）[]的那些的聚合物的水溶液注入井周围的地层中，其中：n的范围为0.70至 0.98; m范围为0.30〜0.02; n + m = 1; X1和X2相同或不同，选自H a CH3; R1，R2，R3相同或不同，选自C1-C10单官能烃基; x的范围从2到5。
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公开(公告)号：US5424283A
公开(公告)日：1995-06-13
申请号：US283665
申请日：1994-08-01
申请人： Fausto Miano , Antonello Pittalis , Thomas P. Lockhart , Stefano Carminati , Giovanni Burrafato
发明人： Fausto Miano , Antonello Pittalis , Thomas P. Lockhart , Stefano Carminati , Giovanni Burrafato
摘要： Aqueous drilling muds effective at high temperature containing complexes, preformed or formed in situ, of tetravalent zirconium with one or more organic acids, or relative salts, of general formula (I) ##STR1## where R.sub.1 and R.sub.2, which can be the same or different, represent --H, --COOH, --CH.sub.3, --CH.sub.2 COOH or --CH(OH)COOH, or R.sub.1 and R.sub.2 jointly represent an oxo group (.dbd.O).
摘要翻译： 在高温下含有复合物的水性钻井泥浆，预先形成或原位形成四价锆与一种或多种有机酸或通式（I）的相对盐，其中R 1和R 2可以是 相同或不同，表示-H，-COOH，-CH 3，-CH 2 COOH或-CH（OH）COOH，或者R 1和R 2共同表示氧代基（= O）。
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6.发明授权Pretreated clays, their preparation and use in formulation drilling muds not aggressive to layer clays 失效预处理的粘土，它们的制备和在配制钻井泥浆中的用途不侵蚀层状粘土
公开(公告)号：US5646092A
公开(公告)日：1997-07-08
申请号：US397056
申请日：1995-03-13
CPC分类号： C09K8/24 , C09K8/145 , Y10S507/901
摘要： Disclosed is a process for preparing aqueous, clay-based muds, not aggressive to layer clays, which process comprises a first step in which clay is treated with an aqueous solution containing the necessary amount of dispersant to fluidify the mud; a second step, of separation of so treated clay from the aqueous solution containing any not adsorbed dispersant, and finally, a step of re-dispersion of so treated clay in water, in order to formulate the mud.
摘要翻译： PCT No.PCT / EP93 / 02586 Sec。 371日期1995年3月13日 102（e）1995年3月13日PCT PCT 1993年9月23日PCT公布。 公开号WO94 / 06881 日期1994年3月31日公开是一种制备水性粘土基泥浆，不侵蚀层状粘土的方法，该方法包括第一步，其中用含有必要量的分散剂的水溶液处理粘土以使泥浆流化; 第二步，从含有任何未吸附的分散剂的水溶液中分离如此处理的粘土，最后，将如此处理的粘土重新分散在水中以便制备泥浆的步骤。
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7.发明授权
公开(公告)号：US5219476A
公开(公告)日：1993-06-15
申请号：US845606
申请日：1992-03-04
CPC分类号： C09K8/887 , C09K8/512 , Y10S507/903 , Y10S507/935
摘要： The permeability of high-permeability zones in a oil reservoir can be reduced by using a gellable aqueous composition with delayed gelation. The composition comprises:a) water;b) a high-molecular weight natural or synthetic water-soluble polymer cross-linkable by means of Cr.sup.3+ ions;c) a water-soluble inorganic Cr.sup.3+ salt;d) a gelation-retardant organic ligand definable by the formula: ##STR1## where: R is a direct single bond, or a saturated or unsaturated linear or branched aliphatic hydrocarbon radical with from 1 to 6 carbon atoms, or a cycloalkyl radical with from 3 to 7 carbon atoms, or an aryl radical;X is OH or OR' (where R' is an alkyl radical with from 1 to 5 carbon atoms), or NR"R"' (where R" and R"', which may be equal or different, are H or an alkyl radical with from 1 to 5 carbon atoms); and relative water-soluble salts;the polymer b) being present in a concentration of between 1000 and 50,000 ppm; the salt c) being present in a concentration of between 10 and 5000 ppm evaluated as metal; the polymer/Cr.sup.3+ weight ratio varying from 1:1 to 1000:1; the molar organic ligand/Cr.sup.3+ ratio varying from 0.5 to 500:1; the composition having a pH equal to or less than about 7.0.
摘要翻译： 通过使用具有延迟凝胶化作用的胶凝水性组合物可以降低油藏中高渗透性区域的渗透性。 组合物包括：a）水; b）通过Cr3 +离子可交联的高分子量天然或合成水溶性聚合物; c）水溶性无机Cr 3+盐; d）可由下式定义的凝胶阻滞有机配体：其中：R是直接单键，或具有1至6个碳原子的饱和或不饱和直链或支链脂族烃基，或具有 3至7个碳原子，或芳基; X是OH或OR'（其中R'是具有1至5个碳原子的烷基）或NR“R”'（其中R“和R”'可以相同或不同， H或具有1至5个碳原子的烷基）; 和相对的水溶性盐; 聚合物b）以1000至50,000ppm的浓度存在; 盐c）以金属计，以10至5000ppm的浓度存在; 聚合物/ Cr 3+重量比从1:1至1000:1变化; 有机配体/ Cr 3+摩尔比为0.5-500:1; 该组合物具有等于或小于约7.0的pH。
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8.发明授权
公开(公告)号：US5532211A
公开(公告)日：1996-07-02
申请号：US106634
申请日：1993-08-16
CPC分类号： C09K8/22
摘要： Aqueous drilling muds are disclosed which contain, as fluidifier agent, one or more complexes, which may be either pre-formed or produced in situ, selected from:tetravalent zirconium and one or more organic acids, or their salts, having the general formula (I) ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different from each other, represent --H, --COOH, --CH.sub.3, --CH.sub.2 COOH, --CH(OH)COOH;aluminum citrate.
摘要翻译： 公开了含水钻井泥浆作为流化剂的一种或多种复合物，其可以预先形成或原位生产，选自：四价锆和一种或多种有机酸或其盐，具有通式（ （I）其中R 1和R 2可以相同或不同，表示-H，-COOH，-CH 3，-CH 2 COOH，-CH（OH）COOH; 柠檬酸铝
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9.发明授权Gellable buffered aqueous composition and its use in enhanced petroleum recovery 失效可溶性缓冲水性组合物及其在加强石油回收中的应用
公开(公告)号：US5100932A
公开(公告)日：1992-03-31
申请号：US499681
申请日：1990-03-27
摘要： A gellable aqueous composition particularly suitable for reducing the permeability of high-permeability zones in an oil reservoir is an aqueous solution comprising:a) a water-soluble organic polymer cross-linkable by the effect of a polyvalent metal ion cross-linking agent;b) a Cr(III) ion cross-linking agent;c) a buffer agent free or subtantially free of ligand characteristics towards the cross-linking agent, and chosen from organic bases and aromatic carboxylic or sulphonic acids;the solution pH being adjusted to a value within the range of about 2 to about 7.
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公开(公告)号：US4986356A
公开(公告)日：1991-01-22
申请号：US477120
申请日：1990-02-07
CPC分类号： C09K8/887 , C09K8/52 , C09K8/685 , Y10S507/903 , Y10S507/921 , Y10S507/935
摘要： When used as occlusion agents or to cause fractures in a petroleum reservoir, polymer gels crosslinked with polyvalent metal ions can be removed by the use of special complexing agents.
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