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    • 12. 发明授权
    • Lignosulfonates as sacrificial agents in oil recovery processes
    • 木质素磺酸盐作为石油采收过程中的牺牲剂
    • US4006779A
    • 1977-02-08
    • US591574
    • 1975-06-30
    • George Kalfoglou
    • George Kalfoglou
    • C09K8/88E21B43/20E21B43/22
    • C09K8/885
    • A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of lignosulfonate salt as a sacrificial agent to inhibit the deposition of surfactant contained in a micellar dispersion (microemulsion) on the reservoir matrix. Normally the process would be carried out by first injecting the lignosulfonates into the formation through the injection well and following them with a micellar dispersion which may contain lignosulfonates. The micellar dispersion would then be followed by a drive fluid such as water to push the dispersion to the production well.
    • 公开了一种从地层生产石油的方法,其中从地层中的生产是通过将流体从注入井驱动到生产井获得的。 该方法包括通过注射井将木质素磺酸盐的水溶液作为牺牲剂注入,以抑制胶束分散体(微乳液)中所含的表面活性剂沉积在储层基质上。 通常,该方法将通过首先通过注入井将木质素磺酸盐注入地层中,然后用可能含有木素磺酸盐的胶束分散体进行。 然后,胶束分散体之后是驱动流体例如水,以将分散体推到生产井。
    • 15. 发明授权
    • Modified lignosulfonates as additives in oil recovery processes
involving chemical recovery agents
    • 改性木素磺酸盐作为包含化学回收剂的油回收过程中的添加剂
    • US4344487A
    • 1982-08-17
    • US130911
    • 1980-03-17
    • George Kalfoglou
    • George Kalfoglou
    • C09K8/88E21B43/22
    • C09K8/885Y10S507/936
    • A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of modified lignosulfonate salt as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the modified lignosulfonates into the formation through the injection well mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well. The lignosulfonates may be modified by any combination of any two or more of: reaction with chloroacetic acid, reaction with carbon dioxide, addition of the methylene sulfonate radical to the lignosulfonate molecule and oxidation with oxygen.
    • 公开了一种从地层生产石油的方法,其中从地层中的生产是通过将流体从注入井驱动到生产井获得的。 该方法包括通过注入井注入改性木质素磺酸盐的水溶液作为牺牲剂,以抑制表面活性剂和/或聚合物沉积在储层基质上。 该方法最好通过将改性的木质素磺酸盐通过与聚合物,表面活性剂溶液和/或胶束分散体混合的注入井注入到地层中来进行。 然后该混合物之后是驱动流体例如水,以将化学品推向生产井。 木素磺酸盐可以通过以下任何两种或多种的任何组合进行改性:与氯乙酸反应,与二氧化碳反应,向木质素磺酸盐分子中加入亚甲基磺酸根基团并用氧气氧化。
    • 16. 发明授权
    • Surfacant waterflooding oil recovery method
    • Surfacant注水采油方法
    • US4296812A
    • 1981-10-27
    • US106212
    • 1979-12-21
    • George Kalfoglou
    • George Kalfoglou
    • C09K8/584C09K8/60E21B43/22
    • C09K8/60C09K8/584Y10S507/936
    • Disclosed is a novel surfactant fluid and an oil recovery method using the fluid for recovering oil from subterranean formations thereof by surfactant waterflooding process. The fluid comprises water and at least one surfactant, preferably including an alkylpolyalkoxyalkylene sulfonate or an alkylarylpolyalkoxyalkylene sulfonate and as an additive for reducing the rigidity of the interfacial film, a silica-polydialkylsiloxane such as a silica-polydimethylsiloxane. Reduction in rididity of the interfacial film occupied by surfactant molecules of which the hydrophobic portion is dissolved in the oil phase and the hydrophilic portion is dissolved in the aqueous phase, improves the effectiveness of the surfactant fluid for recovering oil from subterranean formations.
    • 公开了一种新型的表面活性剂流体和油回收方法,该方法使用流体通过表面活性剂注水方法从其地层中回收油。 流体包含水和至少一种表面活性剂,优选包括烷基聚烷氧基亚烷基磺酸盐或烷基芳基聚烷氧基亚烷基磺酸盐,并且作为用于降低界面膜刚性的添加剂,二氧化硅 - 聚二烷基硅氧烷如二氧化硅 - 聚二甲基硅氧烷。 将疏水部分溶解在油相中的表面活性剂分子和亲水部分所溶解的界面膜的吸附性降低到水相中,提高了用于从地层中回收油的表面活性剂流体的有效性。
    • 17. 发明授权
    • Tannin materials as additives in oil recovery processes involving
chemical recovery agents
    • 单宁材料作为添加剂在采油过程中涉及化学回收剂
    • US4147214A
    • 1979-04-03
    • US859423
    • 1977-12-12
    • George Kalfoglou
    • George Kalfoglou
    • C09K8/90E21B43/22
    • C09K8/90
    • A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of tannin as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the tannin into the formation through the injection well ahead of or mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well.
    • 公开了一种从地层生产石油的方法,其中从地层中的生产是通过将流体从注入井驱动到生产井获得的。 该方法包括通过注射井将形成单宁的水溶液作为牺牲剂注入,以抑制表面活性剂和/或聚合物沉积在储层基质上。 该方法最好通过将注入井中的单宁注射到地层中,或者与聚合物,表面活性剂溶液和/或胶束分散体混合来进行。 然后该混合物之后是驱动流体例如水,以将化学品推向生产井。
    • 18. 发明授权
    • Tertiary oil recovery process utilizing a preflush
    • 采用预冲洗的三次采油工艺
    • US4143716A
    • 1979-03-13
    • US718993
    • 1976-08-30
    • George KalfoglouKenoth H. Flournoy
    • George KalfoglouKenoth H. Flournoy
    • C09K8/588C09K8/60E21B43/22
    • C09K8/584C09K8/588C09K8/607Y10S507/936Y10S516/922
    • An adjusted salinity and hardness, aqueous preflush containing a thickening material which can be, for example, a hydrophilic material such as polyacrylamide, polysaccharide, polyvinyl aromatic sulfonate, polyethylene oxide, methyl cellulose, etc. or colloidal silica, etc. in a concentration sufficient to increase the viscosity of the adjusted salinity aqueous preflush fluid is injected into a subterranean, petroleum-containing formation. Optionally, the preflush fluid may contain a sacrificial agent, such as sodium tripolyphosphate, etc. The high salinity formation water is efficiently displaced by viscous low salinity aqueous preflush fluid to increase the effectiveness of a subsequently injected high salinity sensitive single surfactant solution. The surfactant may be displaced by a mobility buffer solution, which then may be displaced by water.
    • 调节的盐度和硬度,含有增稠材料的水性预冲洗,其可以是例如浓度足够的例如聚丙烯酰胺,多糖,聚乙烯基芳族磺酸盐,聚环氧乙烷,甲基纤维素等或胶态二氧化硅等亲水性材料 为了增加调节后的盐度水性预喷流体的粘度被注入地下含石油的地层中。 任选地,预冲洗流体可以含有牺牲剂,例如三聚磷酸钠等。高盐度形成水通过粘性低盐度水性预冲洗液有效地移位,以增加随后注射的高盐度敏感性单一表面活性剂溶液的有效性。 表面活性剂可以被移动性缓冲溶液置换,然后移动性缓冲溶液可能被水置换。
    • 19. 发明授权
    • Oxidized lignosulfonates as additives in oil recovery processes
involving chemical recovery agents
    • 氧化木质素磺酸盐作为涉及化学回收剂的采油过程中的添加剂
    • US4133385A
    • 1979-01-09
    • US807948
    • 1977-06-20
    • George Kalfoglou
    • George Kalfoglou
    • C09K8/88E21B43/22
    • C09K8/885Y10S507/936
    • A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of oxidized lignosulfonate salt as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the oxidized lignosulfonates into the formation through the injection well mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well.
    • 公开了一种从地层生产石油的方法,其中从地层中的生产是通过将流体从注入井驱动到生产井获得的。 该方法包括通过注入井注入氧化木质素磺酸盐的水溶液作为牺牲剂,以抑制表面活性剂和/或聚合物沉积在储层基质上。 该方法最好通过将氧化的木质素磺酸盐通过与聚合物,表面活性剂溶液和/或胶束分散体混合的注射剂注入到地层中来进行。 然后该混合物之后是驱动流体例如水,以将化学品推向生产井。