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公开(公告)号：US4917186A
公开(公告)日：1990-04-17
申请号：US310930
申请日：1989-02-16
申请人： Naim A. Mumallah
发明人： Naim A. Mumallah
IPC分类号： C09K8/512
CPC分类号： C09K8/512
摘要： Methods and compositions for altering the water permeability of subterranean formations are provided. The compositions are comprised of water, at least one polymer capable of being gelled when contacted with a crosslinking agent, at least one crosslinking agent comprised of polyvalent metal cation, and a cation reactivity retarding chelating agent which provides anion for chelating the polyvalent metal cation selected from substantially water soluble dicarboxylic acids, hydroxy carboxylic acids, ketocarboxylic acids and the corresponding salts thereof.
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公开(公告)号：US4822842A
公开(公告)日：1989-04-18
申请号：US10507
申请日：1987-02-03
CPC分类号： C09K8/588
摘要： A process is disclosed for delaying the rate at which water soluble polymers are gelled by an aldehyde and a phenolic compound and for increasing the mechanical strength of these gels which comprises contacting an aqueous solution of said water soluble polymer, aldehyde, phenolic compound, and water with from 0.004 to about 0.049 wt % of a transition metal ion. In addition, novel gelable compositions are disclosed.
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公开(公告)号：US4845134A
公开(公告)日：1989-07-04
申请号：US6821
申请日：1987-01-23
申请人： Naim A. Mumallah , Peter H. Doe
发明人： Naim A. Mumallah , Peter H. Doe
CPC分类号： C09K8/887 , C09K8/592 , Y10S507/902 , Y10S507/903 , Y10S507/935
摘要： A gelable composition is provided which can be injected into a well prior to steam treatment of the well. The composition comprises water, a water-dispersible polymer, a water-dispersible first crosslinker and a water-dispersible second crosslinker, wherein the first and second crosslinkers have differing temperature responsive crosslinking characteristics over the temperature range of about 70.degree. F. to about 400.degree. F. so as to enable crosslinking of the polymer and gelation of the composition over substantially the entire temperature range. Injection of the composition into a "cold" well followed by steam treatment of the well causes the polymer to undergo a two stage crosslinking reaction which produces a particularly effective and stable gel in diverting steam from "thief zones" in the formation surrounding the well.
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4.发明授权Permeability contrast correction employing a sulfate-free propionate-sequestered chromium (III) solution 失效使用不含硫酸盐的丙酸盐螯合的铬（III）溶液的渗透性对比度校正
公开(公告)号：US4644073A
公开(公告)日：1987-02-17
申请号：US710754
申请日：1985-03-11
申请人： Naim A. Mumallah , Tod K. Shioyama
发明人： Naim A. Mumallah , Tod K. Shioyama
CPC分类号： C09K8/887 , C07C51/412 , C08L1/28 , C08L5/00 , C09K8/512 , C09K8/528 , C09K8/588 , Y10S507/903 , Y10S507/935
摘要： A sulfate-free clear green solution of chromium(III) propionate is prepared by mixing aqueous propionic acid containing up to 55 weight percent propionic acid with a chromium(VI) oxidant, such as a dichromate or chromate, and a sulfur-containing reductant, such as a bisulfite, which on reacting yields two phases: a lower sulfate-containing phase for discard or recycle and an upper phase solution of sulfate-free clear green propionate-sequestered chromium(III), the latter phase being stabilized with additional acid. The upper phase solution is useful for crosslinking polymeric viscosifiers such as partially hydrolyzed acrylamide-based polymers and the like in permeability contrast corrections in enhanced oil recovery operations.
摘要翻译： 通过将含有最多55重量％丙酸的丙酸水溶液与铬（VI）氧化剂如重铬酸盐或铬酸盐和含硫还原剂混合，制备无水硫酸铬（III）的澄清绿色溶液， 例如亚硫酸氢盐，其在反应时产生两相：用于丢弃或再循环的低含硫酸盐相和不含硫酸盐的澄清绿丙酸盐隔离铬（III）的上相溶液，后一相通过另外的酸稳定。 上层溶液可用于交联聚合物增粘剂如部分水解的丙烯酰胺基聚合物等，以提高采油操作中的渗透性对比度校正。
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5.发明授权In-situ formation of polyvalent metal ions for crosslinking polymers within carbonate rock-containing reservoirs 失效在含碳酸盐岩储层中交联聚合物的多价金属离子的原位形成
公开(公告)号：US4630678A
公开(公告)日：1986-12-23
申请号：US740447
申请日：1985-06-03
IPC分类号： C09K8/88 , E21B43/26 , E21B33/138
CPC分类号： C09K8/887 , E21B43/261
摘要： A water permeability contrast correction process to improve the sweep efficiency of waterflooding in carbonate-bearing strata which involves a sequential injection of (1) an optional aqueous preflush slug to adjust connate water salinity, (2) a slug of aqueous polymer gelable with polyvalent metal cations, such as an polyacrylamide, (3) an acidic aqueous solution effective to dissolve some of the carbonate and at least therefrom polyvalent metal cations specifically calcium or magnesium or both effective to gel said polymer, wherein said aqueous polymer and acidic solution can be injected together in a single slug, followed by (4) an additional aqueous polymer solution injection, wherein the acidic solution provides polyvalent metal cations in-situ for gelation of said polymer slug to preferentially decrease water permeability in highly permeable thief zones, and (5) an aqueous drive fluid.
摘要翻译： 一种透水性对比度校正方法，用于提高碳酸盐岩地层注水的扫掠效率，其中包括连续注入（1）任选的含水预冲洗块以调节原生水盐度，（2）可与多价金属胶凝的水分聚合物 阳离子，例如聚丙烯酰胺，（3）有效地溶解一些碳酸盐的酸性水溶液，以及至少有效地使所述聚合物凝胶化的所述聚合物，其中所述水性聚合物和酸性溶液可以被注入 （4）另外注入聚合物水溶液，其中酸性溶液原位提供多价金属阳离子以凝胶化所述聚合物块，以优先降低高渗透性小偷区域的透水性;（5） 水驱动流体。
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6.发明授权Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process 失效具有多价金属阳离子的杀微生物阴离子螯合剂用于渗透性校正过程
公开(公告)号：US4629747A
公开(公告)日：1986-12-16
申请号：US753097
申请日：1985-07-09
申请人： Yulin Wu , Naim A. Mumallah
发明人： Yulin Wu , Naim A. Mumallah
CPC分类号： C09K8/60
摘要： A water permeability correction process, and composition therefor, to improve the sweep efficiency of waterflooding which involves the sequential injection of (1) an optional aqueous preflush slug to adjust connate water salinity, (2) an aqueous sequestered polyvalent metal cation, such as chromium, wherein the sequestering anion is bactericidal, such as propionate, (3) a gelable polymeric viscosifier, such as polyacrylamide, and, preferably, (4) an aqueous drive fluid.
摘要翻译： 一种水渗透性校正过程及其组合，以提高注水的扫掠效率，其涉及顺序注入（1）任选的含水预冲洗块以调节合适的水盐度，（2）含水多价金属阳离子如铬 ，其中螯合阴离子是杀菌的，例如丙酸酯，（3）可凝胶聚合增粘剂，例如聚丙烯酰胺，优选（4）水性驱动流体。
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公开(公告)号：US4884636A
公开(公告)日：1989-12-05
申请号：US279489
申请日：1988-12-01
CPC分类号： C09K8/588
摘要： A process is disclosed for delaying the rate at which water soluble polymers are gelled by an aldehyde and a phenolic compound and for increasing the mechanical strength of these gels which comprises contacting an aqueous solution of said water soluble polymer, aldehyde, phenolic compound, and water with from 0.004 to about 0.049 wt % of a transition metal ion. In addition, novel gelable compositions are disclosed.
摘要翻译： 公开了一种用于延迟水溶性聚合物被醛和酚类化合物胶凝的速率并用于增加这些凝胶的机械强度的方法，其包括将所述水溶性聚合物，醛，酚类化合物和水的水溶液 与0.004至约0.049wt％的过渡金属离子。 另外，公开了新的可凝胶组合物。
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公开(公告)号：US4799548A
公开(公告)日：1989-01-24
申请号：US185009
申请日：1988-04-22
申请人： Naim A. Mumallah , Peter H. Doe
发明人： Naim A. Mumallah , Peter H. Doe
IPC分类号： C09K8/592 , C09K8/88 , E21B33/138 , E21B43/24
摘要： A gelable composition is provided which can be injected into a well prior to steam treatment of the well. The composition comprises water, a water-dispersible polymer, a water-dispersible first crosslinker and a water-dispersible second crosslinker, wherein the first and second crosslinkers have differing temperature responsive crosslinking characteristics over the temperature range of about 70.degree. F. to about 400.degree. F. so as to enable crosslinking of the polymer and gelation of the composition over substantially the entire temperature range. Injection of the composition into a "cold" well followed by steam treatment of the well causes the polymer to undergo a two stage crosslinking reaction which produces a particularly effective and stable gel in diverting steam from "thief zones" in the formation surrounding the well.
摘要翻译： 提供了一种可凝胶化的组合物，其可在井的蒸汽处理之前注入井中。 组合物包含水，水分散性聚合物，水分散性第一交联剂和水分散性第二交联剂，其中第一和第二交联剂在约70°F至约400℃的温度范围内具有不同的温度响应交联特性 以使聚合物交联和组合物在基本上在整个温度范围内凝胶化。 将组合物注入“冷”孔，然后对该井进行蒸汽处理，导致聚合物经历两阶段交联反应，其产生一个特别有效和稳定的凝胶，以将蒸汽从围绕井的地层中的“小偷区”转向。
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9.发明授权Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process 失效具有多价金属阳离子的杀微生物阴离子螯合剂用于渗透性校正过程
公开(公告)号：US4552217A
公开(公告)日：1985-11-12
申请号：US629153
申请日：1984-07-09
申请人： Yulin Wu , Naim A. Mumallah
发明人： Yulin Wu , Naim A. Mumallah
IPC分类号： C09K8/528 , C09K8/88 , E21B33/138 , E21B43/22
CPC分类号： C09K8/887 , Y10S507/903 , Y10S507/935
摘要： A water permeability correction process, and composition therefor, to improve the sweep efficiency of waterflooding which involves the sequential injection of (1) an optical aqueous preflush slug to adjust connate water salinity, (2) an aqueous sequestered polyvalent metal cation, such as chromium, wherein the sequestering anion is bactericidal, such as propionate, (3) a gelable polymeric viscosifier, such as polyacrylamide, and, preferably, (4) an aqueous drive fluid.
摘要翻译： 一种水渗透性校正过程及其组合，以提高注水的扫掠效率，其涉及顺序注入（1）光学水性预冲洗块以调节合适的水盐度，（2）水性螯合多价金属阳离子，例如铬 ，其中螯合阴离子是杀菌的，例如丙酸酯，（3）可凝胶聚合增粘剂，例如聚丙烯酰胺，优选（4）水性驱动流体。
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