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1. 发明授权

US5392855A Method to prepare polymer solutions for down-hole applications 失效
标题翻译：制备用于井下应用的聚合物溶液的方法
公开(公告)号：US5392855A
公开(公告)日：1995-02-28
申请号：US245144
申请日：1994-05-16
申请人： Louis A. Bernardi, Jr. , Hon C. Lau , David A. Cole
发明人： Louis A. Bernardi, Jr. , Hon C. Lau , David A. Cole
IPC分类号： C09K8/62 , C09K8/72 , C09K8/90 , E21B43/22 , E21B43/04 , E21B43/26 , E21B43/27
CPC分类号： C09K8/90 , C09K8/508 , C09K8/514 , C09K8/68 , C09K8/72
摘要： A method is provided to produce a polymer-thickened solution for injection into a wellbore, the method comprising the steps of:a) providing an aqueous polymer solution or suspension;b) dispersing the aqueous polymer solution or suspension into an aqueous stream not containing any of the polymer through nozzles wherein the nozzles have an opening of no larger than a circle of about 1/8-inch diameter;c) passing the aqueous stream containing the polymer solution or suspension through a static mixer having a residence time of at least about 0.5 seconds; andd) injecting the polymer-thickened solution into a wellbore. The polymer-thickened solution prepared according to the present invention may be used as a fracturing fluid, combined with gravel pack sand and used for gravel packing a wellbore, used as an acid treatment composition or used as a fluid loss composition.
摘要翻译：提供了一种制备用于注入井眼的聚合物增稠溶液的方法，所述方法包括以下步骤：a）提供聚合物水溶液或悬浮液; b）将聚合物水溶液或悬浮液分散在不含任何聚合物的水流中，其中喷嘴具有不大于约1/8英寸直径的圆形的开口; c）使含有聚合物溶液或悬浮液的水流通过具有至少约0.5秒的停留时间的静态混合器; 和d）将聚合物增稠的溶液注入井眼。根据本发明制备的聚合物增稠溶液可以用作压碎流体，与砾石包装砂组合，并用于砾石填充井筒，用作酸处理组合物或用作流体损失组合物。

2. 发明授权

US5251699A Low-viscosity gravel packing process 失效
标题翻译：低粘度砂石包装工艺
公开(公告)号：US5251699A
公开(公告)日：1993-10-12
申请号：US888092
申请日：1992-05-26
申请人： Hon C. Lau , Louis A. Bernardi, Jr.
发明人： Hon C. Lau , Louis A. Bernardi, Jr.
IPC分类号： C09K8/575 , E21B43/04
CPC分类号： C09K8/5758 , E21B43/045
摘要： An improved gravel packing process is provided in which a gravel pack slurry is thickened with succinoglycan and the slurry further comprises an amount of breaker effective to result in 80 percent settlement of sand from the slurry after a time period larger than about one hour and shorter than about three hours.
摘要翻译：提供了一种改进的砾石填充方法，其中砾石充填浆料用琥珀酰聚糖增稠，并且浆料还包含一定量的破碎剂，其有效地在大于约1小时并且短于约1小时的时间段内导致来自浆料的砂沉降80％约三个小时。

3. 发明授权

US5460225A Gravel packing process 失效
标题翻译：砾石包装过程
公开(公告)号：US5460225A
公开(公告)日：1995-10-24
申请号：US277378
申请日：1994-07-18
申请人： Hon C. Lau , Louis A. Bernardi, Jr.
发明人： Hon C. Lau , Louis A. Bernardi, Jr.
IPC分类号： E21B43/04 , E21B43/267
CPC分类号： E21B43/267 , E21B43/045
摘要： A method is provided for placement of a gravel pack within perforations extending into a formation from a wellbore, the method comprising the steps of:a) injecting a pad fluid into the perforations, the pad fluid having a viscosity, at an ambient temperature of the perforations, of less than about 3 cp (measured at a shear rate of 100 sec.sup.-1), at a rate of at least 1/4 gpm per perforation for at least 5 minutes; andb) injecting a gravel slurry into the perforations at a rate of at least 1/4 gpm per perforation, the gravel slurry comprising a carrier fluid, between about one quarter and about 5 pounds of gravel pack solids per gallon of carrier fluid, and the carrier fluid comprising an amount of thickener effective to impart a viscosity to the carrier fluid of more than about 3 centipoise (measured at a shear rate of about 100 sec.sup.-1) at the ambient temperature of the perforations and at least an amount of thickener effective to result in laminar flow of slurry into the perforation at the rate at which it is injected.
摘要翻译：提供了一种用于在从井眼延伸到地层中的穿孔中放置砾石包的方法，所述方法包括以下步骤：a）将衬垫流体注入到穿孔中，衬垫流体在环境温度为穿孔小于约3cp（以剪切速率100秒-1测量），每穿孔至少1/4gpm的速率至少5分钟; 和b）以每次穿孔至少1/4gpm的速率将砾石浆料注入到所述穿孔中，所述砾石浆料包含载体流体，每加仑载体流体约为四分之一至约五磅的砾石充填固体，以及载体流体包含一定量的增稠剂，其有效地在穿孔的环境温度下赋予载体流体大于约3厘泊（在约100秒-1的剪切速率下测量）的粘度和至少一定量的增稠剂有效地导致浆料以其注射速率进入穿孔中的层流。

4. 发明授权

US4609044A Alkali-enhanced steam foam oil recovery process 失效
标题翻译：碱增强蒸汽泡沫油回收工艺
公开(公告)号：US4609044A
公开(公告)日：1986-09-02
申请号：US736008
申请日：1985-05-20
申请人： Hon C. Lau
发明人： Hon C. Lau
IPC分类号： C09K8/592 , E21B43/24
CPC分类号： C09K8/592 , E21B43/24
摘要： In a continuous or cyclic steam foam drive, recovery of an acidic reservoir oil is improved by injecting steam accompanied by (a) enough dissolved alkaline monovalent salt to ion-exchange multivalent cations from the reservoir rocks and precipitate those ions in compounds which are insoluble in an alkaline aqueous liquid as well as forming soaps of the reservoir oil acids and (b) surfactants for foaming the steam and increasing the salt tolerance of an aqueous surfactant system containing the soaps of the reservoir oil acids.
摘要翻译：在连续或循环的蒸汽泡沫驱动中，通过将伴随着（a）足够溶解的碱性一价盐的蒸汽注入来自储层岩石的离子交换多价阳离子并将这些离子沉淀在不溶于碱性水性液体，以及形成贮存器油酸的皂和（b）用于使蒸汽发泡的表面活性剂，并且增加含有储层油酸的皂的含水表面活性剂体系的耐盐性。

5. 发明授权

US5031698A Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery 失效
标题翻译：富含α-烯烃二磺酸盐的蒸汽泡沫表面活性剂，用于提高采油率
公开(公告)号：US5031698A
公开(公告)日：1991-07-16
申请号：US533235
申请日：1990-06-04
申请人： John K. Borchardt , Hon C. Lau
发明人： John K. Borchardt , Hon C. Lau
IPC分类号： C09K8/594 , E21B43/24
CPC分类号： C09K8/594 , E21B43/24 , Y10S507/936
摘要： An improved process for recovering oil by flowing a mixture of steam and steam foam surfactant into an oil-containing subterranean reservoir, the improvement provided by using surfactants enriched in olefin disulfonate. The surfactants may be used in either a steam drive or a steam soak process. Disulfonate-enriched steam foam surfactants and mixtures are also described.
摘要翻译：通过将蒸汽和蒸汽泡沫表面活性剂的混合物流入含油地下储层来回收油的改进方法，通过使用富含烯烃二磺酸盐的表面活性剂提供了改进。表面活性剂可用于蒸汽驱动或蒸汽浸泡工艺。还描述了富含二磺酸盐的蒸汽泡沫表面活性剂和混合物。

6. 发明授权

US4727938A Trona-enhanced steam foam oil recovery process 失效
标题翻译： Trona增强蒸汽泡沫油回收工艺
公开(公告)号：US4727938A
公开(公告)日：1988-03-01
申请号：US15243
申请日：1987-02-17
申请人： Hon C. Lau
发明人： Hon C. Lau
IPC分类号： C09K8/592 , E21B43/24
CPC分类号： E21B43/24 , C09K8/592
摘要： In a continuous or cyclic steam foam drive, recovery of an acidic reservoir oil (1) is improved by injecting steam accompanied by (a) enough dissolved alkaline monovalent salt to ion-exchange multivalent cations from the reservoir rocks and precipitate those ions in compounds which are insoluble in an alkaline aqueous liquid as well as forming soaps of the reservoir oil acids and (b) surfactants for foaming the steam and increasing the salt tolerance of an aqueous surfactant system containing the soaps of the reservoir oil acids, and (2) is further improved by using trona or an equivalent mixture of alkali metal carbonates and bicarbonates as the alkaline monovalent salt.
摘要翻译：在连续或循环蒸汽泡沫驱动中，通过将伴随着（a）足够溶解的碱性一价盐的蒸汽注入来自储层岩石的离子交换多价阳离子并将这些离子沉淀在化合物不溶于碱性水性液体，以及形成贮存器油酸的皂和（b）用于使蒸汽发泡的表面活性剂，并且增加含有储层油酸皂的含水表面活性剂体系的耐盐性，和（2）是通过使用天然碱或碱金属碳酸盐和碳酸氢盐的等价混合物作为碱性单价盐进一步改善。

7. 发明授权

US4601337A Foam drive oil displacement with outflow pressure cycling 失效
标题翻译：泡沫驱动油排量与流出压力循环
公开(公告)号：US4601337A
公开(公告)日：1986-07-22
申请号：US609062
申请日：1984-05-10
申请人： Hon C. Lau , Stephen M. O'Brien
发明人： Hon C. Lau , Stephen M. O'Brien
IPC分类号： E21B43/16 , E21B43/18
CPC分类号： E21B43/18 , E21B43/16
摘要： Oil is recovered from a subterranean oil reservoir by injecting foam-forming components through an injection well while preventing fluid outflow from an adjacent production well, so that the pressure is increased in the zone between the wells, then permitting fluid outflow from the production well while continuing the injection, until the rate of the outflow is significantly reduced, and repeating the injecting and outflowing steps until the rate of oil production is significantly reduced.
摘要翻译：油通过注入井注入发泡成分组分从地下油藏中回收，同时防止流体从邻近生产井流出，从而在井之间的区域内增加压力，从而允许流体从生产井中流出，同时继续注入，直到流出速率显着降低，并重复注入和流出步骤，直到产油率显着降低。

8. 发明授权

US5184679A Gravel packing process 失效
标题翻译：砾石包装过程
公开(公告)号：US5184679A
公开(公告)日：1993-02-09
申请号：US800175
申请日：1991-11-27
申请人： Hon C. Lau
发明人： Hon C. Lau
IPC分类号： C09K8/90 , E21B43/04
CPC分类号： E21B43/045 , C09K8/905 , E21B43/04 , Y10S507/921 , Y10S507/926
摘要： An improved gravel packing process is provided in which a gravel pack slurry is thickened with succinoglycan and the slurry further comprises an amount of breaker effective to result in 80 percent settlement of sand from the slurry after a time period larger than about one hour and shorter than about three hours.
摘要翻译：提供了一种改进的砾石填充方法，其中砾石充填浆料用琥珀酰聚糖增稠，并且浆料还包含一定量的破碎剂，其有效地在大于约1小时并且短于约1小时的时间段内导致来自浆料的砂沉降80％约三个小时。

9. 发明授权

US5158139A Well completion method and fluid loss control composition 失效
标题翻译：完井方法和流失控制组成
公开(公告)号：US5158139A
公开(公告)日：1992-10-27
申请号：US718036
申请日：1991-06-20
申请人： Hon C. Lau
发明人： Hon C. Lau
IPC分类号： C09K8/90
CPC分类号： C09K8/90 , Y10S507/925
摘要： Polymers used to prevent fluid loss from boreholes may be eliminated after a predetermined time by including with the polymer composition halogen-substituted organic acids or their salt derivatives. These components hydrolyze, releasing hydrogen-halogen acids which break down the polymers within the wellbore or formation.
摘要翻译：用于防止来自钻孔的流体损失的聚合物可以在预定时间之后通过与聚合物组合物包含卤素取代的有机酸或其盐衍生物一起消除。这些组分水解，释放在井孔或地层内分解聚合物的氢卤酸。

10. 发明授权

US4957646A Steam foam surfactants enriched in alpha olefin disulfonates for enhanced oil recovery 失效
标题翻译：富含α-烯烃二磺酸盐的蒸汽泡沫表面活性剂，用于提高采油率
公开(公告)号：US4957646A
公开(公告)日：1990-09-18
申请号：US89636
申请日：1987-08-26
申请人： John K. Borchardt , Hon C. Lau
发明人： John K. Borchardt , Hon C. Lau
IPC分类号： B01F17/04 , C09K8/594 , E21B43/24
CPC分类号： C09K8/594 , E21B43/24 , Y10S507/936
摘要： An improved process for recovering oil by flowing a mixture of steam and steam foam surfactant into an oil-containing subterranean reservoir, the improvement provided by using surfactants enriched in olefin disulfonate. The surfactants may be used in either a steam drive or a steam soak process. Disulfonate-enriched steam foam surfactants and mixtures are also described.
摘要翻译：通过将蒸汽和蒸汽泡沫表面活性剂的混合物流入含油地下储层来回收油的改进方法，通过使用富含烯烃二磺酸盐的表面活性剂提供了改进。表面活性剂可用于蒸汽驱动或蒸汽浸泡工艺。还描述了富含二磺酸盐的蒸汽泡沫表面活性剂和混合物。

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