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公开(公告)号：US4177752A
公开(公告)日：1979-12-11
申请号：US936438
申请日：1978-08-24
申请人： Alfred Brown , Brian L. Reynolds , Wilbur L. Hall
发明人： Alfred Brown , Brian L. Reynolds , Wilbur L. Hall
摘要： The vertical conformance of a steam drive process is improved and steam override reduced by penetrating the zone between one injector and one producer, with an infill well which is in fluid communication with the bottom half of the formation, and producing petroleum from the infill well after steam channeling has occurred at the production well. After the water cut of the fluids being produced from the infill well reaches 95 percent, the infill well is converted from a producer to an injector and hot water is injected into the lower portion of the formation via the infill well and fluids are produced from the production well. By this means, oil is recovered from the lower portions of the formation adjacent the production well. After water breakthrough occurs at the production well, steam is injected into the infill well and fluids are recovered from the production well. By this multi-step process involving the infill well, the amount of oil recovered from the portion of the formation in the recovery zone defined by the injection and production well is increased significantly.
摘要翻译： 蒸汽驱动过程的垂直一致性得到改善，并且通过渗透一个注射器和一个生产者之间的区域而减少蒸汽超驰，其中填充井与地层的下半部分流体连通，并且在填充井之后从填充井产生石油 蒸汽通道发生在生产井。 在从填充井产生的流体的水切割达到95％之后，填充井从生产者转化为喷射器，并且热水通过填充井注入地层的下部，并且流体从 生产良好。 通过这种方式，从邻近生产井的地层的下部回收油。 在生产井发生水分渗透后，将蒸汽注入到填充井中，从生产井回收流体。 通过这种涉及填充井的多步骤过程，从注入和生产井定义的回收区域中形成的部分中回收的油的量显着增加。
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公开(公告)号：US4207945A
公开(公告)日：1980-06-17
申请号：US1520
申请日：1979-01-08
申请人： Wilbur L. Hall , Charles R. French , Ching H. Wu , Alfred Brown
发明人： Wilbur L. Hall , Charles R. French , Ching H. Wu , Alfred Brown
摘要： A process for enhanced recovery of petroleum from subterranean formations wherein a vapor mixture of steam and a petroleum fraction containing naturally occurring phenolic and carboxylic compounds is injected via an injection well, and a mixture of steam condensate and petroleum is produced via a production well.
摘要翻译： 通过注入井注入从地下地层中回收石油的方法，其中蒸汽和含有天然存在的酚类和羧酸化合物的石油馏分的蒸气混合物通过生产井产生蒸汽冷凝物和石油的混合物。
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公开(公告)号：US4425968A
公开(公告)日：1984-01-17
申请号：US381601
申请日：1982-05-24
申请人： Alfred Brown , Wilbur L. Hall
发明人： Alfred Brown , Wilbur L. Hall
摘要： A method is disclosed for selectively reducing the permeability of water producing intervals in a hydrocarbon formation without reducing oil permeability. A soluble oil followed by water is injected into the formation to lower the residual oil saturation. The well is then produced to remove water from any oil zones before injection of an isobutyl-methacrylate solution in acetone. A slug of a non-condensable gas follows the treating solution before the shutting in of the well for up to about one day.
摘要翻译： 公开了一种用于选择性地降低烃地层中产水间隔的渗透性而不降低透油性的方法。 将可溶性油随后水注入地层以降低残油饱和度。 然后在将异丁基 - 甲基丙烯酸甲酯溶液注入丙酮之前，产生孔以从任何油区去除水。 不可冷凝气体的块塞在井的关闭前跟随处理溶液长达大约一天。
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公开(公告)号：US4166501A
公开(公告)日：1979-09-04
申请号：US936439
申请日：1978-08-24
申请人： Ralph J. Korstad , Wilbur L. Hall , Ching H. Wu , Alfred Brown
发明人： Ralph J. Korstad , Wilbur L. Hall , Ching H. Wu , Alfred Brown
摘要： The vertical or both vertical and horizontal conformance of a steam drive process is improved and steam override reduced by penetrating the zone between one injector and one producer, with one or more infill wells in fluid communication with the bottom half or less of the formation, and producing petroleum from the infill well after steam channeling has occurred at the production well. After the water cut of the fluids being produced from the infill well reaches 95 percent, the infill well is converted from a producer to an injector and steam is injected into the infill well and fluids are recovered from the production well. When one infill well is employed in a more or less aligned arrangement between injection and production wells, the vertical conformance is improved. When one or more infill wells are positioned in an offset or nonaligned arrangement relative to each injector and producer, conformance in both the horizontal and vertical planes is improved. By this multi-step process involving the infill wells, the amount of oil recovered from the portion of the formation in the recovery zone defined by the injection and production well is increased significantly.
摘要翻译： 提高蒸汽驱动过程的垂直或水平一致性，并且通过穿透一个注射器和一个生产者之间的区域减少蒸汽超驰，一个或多个填充井与地层的下半部或更少流体连通，以及 在生产井发生蒸汽通道后，从填充井中产生石油。 在从填充井产生的流体的水切割达到95％之后，填充井从生产者转化为喷射器，并将蒸汽注入到填充井中，并从生产井回收流体。 当在注入井和生产井之间或多或少对齐排列中使用一个填充井时，垂直一致性得到改善。 当一个或多个填充井相对于每个喷射器和生产者以偏移或不对准的布置定位时，水平和垂直平面中的一致性得到改善。 通过这种涉及填充井的多步骤过程，从注入和生产井确定的回收区域中的部分地层回收的油的量显着增加。
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公开(公告)号：US4175618A
公开(公告)日：1979-11-27
申请号：US904703
申请日：1978-05-10
申请人： Ching H. Wu , Alfred Brown , Wilbur L. Hall , Russell D. Shupe
发明人： Ching H. Wu , Alfred Brown , Wilbur L. Hall , Russell D. Shupe
摘要： Thermal oil recovery processes employing the injection of steam and/or hot water for mobilizing viscous petroleum sweep only a small fraction of the formation between the wells because of override, underride, or channeling resulting in poor vertical conformance, as well as poor horizontal conformance of the swept portion of the formation. Both vertical and horizontal conformance are improved significantly if steam is injected into a formation until channeling has begun, after which steam injection is terminated and an aqueous fluid is injected into the formation, which has a viscosity essentially the same as water and contains an emulsifying agent capable of forming a viscous emulsion in the portions of the formation where override, underride or channeling has occurred. After a small slug of emulsifying fluid has been injected, steam injection is resumed and as a consequence of the emulsion plug, moves into portions of the formation from which oil would not be recovered if the emulsion had not been injected. Multiple cycles of steam and emulsion injection may be applied to a formation to more completely sweep the full volume of the pattern. Surfactants suitable for use include organic sulfonates such as petroleum sulfonate, and solubilizing co-surfactants such as alkyl or alkylarylpolyethoxyalkylene sulfonates.
摘要翻译： 使用注入蒸汽和/或热水来调动粘性石油的热油回收方法只能在井之间形成一小部分地层，因为超越，下渗或引导导致垂直一致性差，以及差的水平一致性 扫地部分的地层。 如果将蒸汽注入到地层中直到通道开始开始之后，垂直和水平一致性都会得到显着改善，之后停止蒸汽注入，并将含水流体注入地层，其粘度与水基本相同，并含有乳化剂 能够在地层中形成超重，下渗或沟槽的部分形成粘性乳液。 在注射了一小部分乳化液之后，蒸汽注入被恢复，并且由于乳液塞的结果，如果没有注射乳液，则移动到不能回收油的部分地层中。 蒸汽和乳液注射的多个循环可以施加到地层以更完全地扫描图案的全部体积。 适合使用的表面活性剂包括有机磺酸盐如石油磺酸盐和增溶助表面活性剂如烷基或烷基芳基聚乙氧基亚烷基磺酸盐。
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公开(公告)号：US4166503A
公开(公告)日：1979-09-04
申请号：US936559
申请日：1978-08-24
申请人： Wilbur L. Hall , Alfred Brown , Ralph J. Korstad
发明人： Wilbur L. Hall , Alfred Brown , Ralph J. Korstad
摘要： The vertical conformance of a steam drive process is improved and steam override reduced by penetrating the recovery zone between one injection well and one producing well, with at least one infill well which is in fluid communication with no more than the bottom half of the formation. Steam or a mixture of steam and hydrocarbon is injected into the injection well and fluids including oil are recovered from the producing well until live steam production occurs at the producing well. Petroleum production is then begun at the infill well and continued until the water cut of the fluids being produced from the infill well reaches 95 percent. The infill well is converted from a producer to an injector and hot water or cold water followed by hot water is injected into thelower portion of the formation via the infill well and fluids are produced from the production well. By this means, oil is recovered from the lower portions of the formation between the infill well and the production well. After water breakthrough occurs at the production well, steam is injected into the infill well and fluids are recovered from the production well. Hydrocarbon solvent is injected either as a slug prior to steam injection into the infill well or comingled with the steam being injected into the infill well. By this multi-step process involving the infill well, the amount of oil recovered from the portion of the formation in the recovery zone defined by the injection and production well is increased significantly.
摘要翻译： 通过穿透一个注入井和一个生产井之间的回收区，蒸汽驱动过程的垂直一致性得到改善，并且通过至少一个填充井，其不超过地层的下半部流体连通而减少蒸汽超驰。 将蒸汽或蒸汽和烃的混合物注入注入井，并且从生产井回收包括油的流体，直到在生产井中发生活蒸汽生产。 然后在填充井开始石油生产，并持续直到从填充井产生的流体的水切割达到95％。 填充井从生产者转换为注入器，然后通过填充井将热水或冷水接着热水注入地层的较低部分，并从生产井产生流体。 通过这种方式，从填充井和生产井之间的地层的下部回收油。 在生产井发生水分渗透后，将蒸汽注入到填充井中，从生产井回收流体。 在将蒸汽注入到填充井之前将烃溶剂作为块塞注入，或者将蒸汽注入到填充井中。 通过这种涉及填充井的多步骤过程，从注入和生产井定义的回收区域中形成的部分中回收的油的量显着增加。
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公开(公告)号：US4166502A
公开(公告)日：1979-09-04
申请号：US936558
申请日：1978-08-24
申请人： Wilbur L. Hall , Alfred Brown , Ralph J. Korstad
发明人： Wilbur L. Hall , Alfred Brown , Ralph J. Korstad
摘要： The vertical conformance of a steam drive process is improved and steam override reduced by penetrating the zone between one injector and one producer, with an infill well located between the injector and producer which is in fluid communication with no more than the bottom half of the formation. Steam is injected into the injection well in the first phase with production of fluids from the upper 1/3 or less of the formation via the production well. A separate flow path in communication with the bottom 1/3 or less of the formation is provided in the producing well, and is used during the first phase for push-pull treatment of the formation with solvent and steam or hot water. After production via the production well is terminated, petroleum is produced via the infill well until the fluid being produced from the infill well reaches 95 percent water cut, after which the infill well is converted from a producer to an injector and hot water is injected into the lower portion of the formation via the infill well and fluids are produced from the production well. After water breakthrough at the production well, steam is injected into the infill well and fluids are recovered from the lower 1/3 of the production well.
摘要翻译： 蒸汽驱动过程的垂直一致性得到改善，并且通过穿透一个注射器和一个生产者之间的区域来减少蒸汽超驰，其中填充井位于注射器和生产者之间，该填充物位于不超过地层的下半部流体连通 。 在第一阶段将蒸汽注入到注入井中，通过生产井从地层的上1/3处生产流体。 在生产井中提供与地层底部1/3或更小连通的单独流动路径，并且在第一阶段期间用于用溶剂和蒸汽或热水推动地层的处理。 通过生产井的生产终止后，通过填充井生产石油，直到从填充井产生的流体达到95％的水分，然后将填充井从生产者转化为注入器，并将热水注入 通过填充井的地层的下部和从生产井产生的流体。 在生产井水渗透后，将蒸汽注入填料井，从生产井的1/3下回收流体。
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公开(公告)号：US4119149A
公开(公告)日：1978-10-10
申请号：US752642
申请日：1976-12-20
申请人： Ching H. Wu , Alfred Brown , Wilbur L. Hall
发明人： Ching H. Wu , Alfred Brown , Wilbur L. Hall
摘要： A process for enhanced recovery of petroleum from subterranean formations is disclosed, wherein steam is injected into a formation via an injection well, and a mixture of petroleum and steam condensate is produced via a production well, wherein the produced mixture is flashed for production of a steam-distilled hydrocarbon fraction, and wherein the steam distilled hydrocarbon fraction is injected, with additional steam, into a subterranean formation for increased recovery of petroleum. The process disclosed is particularly useful in recovery of heavy (low API gravity) petroleum.
摘要翻译： 公开了一种从地下地层中提高石油回收率的方法，其中通过注入井将蒸汽注入地层，通过生产井生产石油和蒸汽冷凝物的混合物，其中将生产的混合物闪蒸以生产 蒸汽蒸馏的烃馏分，并且其中将蒸汽蒸馏的烃馏分与额外的蒸汽一起注入地下地层以增加回收石油。 所公开的方法在重（低API重力）石油的回收中特别有用。
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9.发明授权
公开(公告)号：US4540050A
公开(公告)日：1985-09-10
申请号：US638919
申请日：1984-08-08
申请人： Wann-Sheng Huang , Zean Z. Gassmann , Jeffrey T. Hawkins , Vernon H. Schievelbein , Wilbur L. Hall
发明人： Wann-Sheng Huang , Zean Z. Gassmann , Jeffrey T. Hawkins , Vernon H. Schievelbein , Wilbur L. Hall
CPC分类号： E21B43/24 , C09K8/592 , Y10S507/936
摘要： The disclosed invention is a group of steam foaming agents for injection with steam and a non-condensable gas to decrease permeability in steam swept zones and increase oil recovery. The foaming agents have the general formula:RO(R'O).sub.n R"SO.sub.3 Mwhere R is an alkyl radical, branched or linear, or an alkylbenzene, alkyltoluene or alkylxylene group, having from about 8 to about 24 carbon atoms in the alkyl chain, R' is ethyl, propyl or a mixture of ethyl and propyl, n has an average value of about 1 to about 20, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.
摘要翻译： 所公开的发明是一组用于注入蒸汽和不可冷凝气体的蒸汽发泡剂，以减少蒸汽扫过区的渗透性并提高油回收率。 发泡剂具有以下通式：RO（R'O）nR''SO3M，其中R是烷基，支链或直链，或在烷基中具有约8至约24个碳原子的烷基苯，烷基甲苯或烷基二甲苯基 链，R'是乙基，丙基或乙基和丙基的混合物，n具有约1至约20的平均值，R“是乙基，丙基，羟丙基或丁基，M是碱金属或铵离子。
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公开(公告)号：US4324291A
公开(公告)日：1982-04-13
申请号：US144732
申请日：1980-04-28
申请人： Kenny Wong , Wilbur L. Hall
发明人： Kenny Wong , Wilbur L. Hall
摘要： Disclosed is an improved viscous oil recovery method employing the injection of a thermal recovery fluid which may be steam or a mixture of steam and additives, and cycles of pressurization and drawdown. First the thermal recovery fluid is injected and production is restricted in order to increase the pressure in the reservoir. Injection is then terminated or decreased and production is increased in order to effect a pressure drawdown in the reservoir. Thereafter the production rate is decreased or production wells are shut in completely and non-condensable gas is injected to raise the pressure in the reservoir to a value which is from 50 to 90 percent of the final target pressure, after which the thermal recovery fluid is again injected into the formation to rebuild reservoir pressure with restricted production. Finally, production rate is increased and thermal recovery fluid injection is reduced or terminated in order to accomplish another reservoir drawdown cycle. Additional cycles of partial repressuring with non-condensable gas followed by steam injection followed by pressure drawdown production cycles may be employed.
摘要翻译： 公开了一种改进的粘性油回收方法，其使用可以是蒸汽或蒸汽和添加剂的混合物的热回收流体的注入，以及加压和抽出的循环。 首先，热回收流体被注入并且生产被限制以增加储存器中的压力。 然后终止或减少注射，并且增加生产以实现储存器中的压力下降。 此后，生产率降低或生产井完全关闭，注入不可冷凝气体以将储层中的压力提高到最终目标压力的50％至90％的值，之后热回收流体为 再次注入地层，以有限的生产重建水库压力。 最后，提高生产率，减少或终止热回收流体注入，从而实现另一个储层下降循环。 可以采用用不可冷凝气体进行部分压制，然后进行蒸汽喷射，然后进行压力下降生产循环的附加循环。
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