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    OIL PRODUCTION USING MULTISTAGE SURFACTANT POLYMER CHEMICAL FLOOD
    1.
    发明申请
    OIL PRODUCTION USING MULTISTAGE SURFACTANT POLYMER CHEMICAL FLOOD 审中-公开

    公开(公告)号：US20180002591A1

    公开(公告)日：2018-01-04

    申请号：US15538424

    申请日：2015-12-21

    Applicant: SHELL OIL COMPANY

    Inventor： Jeffrey George SOUTHWICK

    IPC: C09K8/584 ,  E21B43/20

    CPC classification number: E21B43/20 ,  C09K8/584 ,  E21B43/16

    Abstract: A process for recovering oil from an oil-bearing formation is disclosed comprising providing a first oil recovery formulation comprising a first surfactant able to create low interfacial tension with reservoir crude oil; injecting the first oil recovery formulation into the oil-bearing formation via an injection well (201); providing a second oil recovery formulation having a second surfactant with a higher solubility in water than the first formulation; injecting the second oil recovery formulation into the oil-bearing formation via the injection well; and producing oil to a production well (203).

    ENHANCED OIL RECOVERY METHODS USING A FLUID CONTAINING A SACRIFICIAL AGENT
    4.
    发明申请
    ENHANCED OIL RECOVERY METHODS USING A FLUID CONTAINING A SACRIFICIAL AGENT 审中-公开
    使用含有敏感剂的流体的增强油回收方法

    公开(公告)号：US20140034306A1

    公开(公告)日：2014-02-06

    申请号：US13957012

    申请日：2013-08-01

    Applicant: Shell Oil Company

    Inventor： Jeffrey George SOUTHWICK ,  Marten Marten BUIJSE ,  Diederik Willem VAN BATENBURG ,  Carolus Hendricus Theodorus VAN RIJN

    IPC: E21B43/25

    CPC classification number: E21B43/25 ,  C09K8/58 ,  C09K8/584

    Abstract: A method and a system for producing petroleum from a formation utilizing a sacrificial agent and a surfactant are provided. The sacrificial agent reduces the amount of surfactant required to enhance oil recovery from a petroleum-bearing formation. The sacrificial agent is provided in a oil recovery formulation comprising a sacrificial agent and a surfactant dispersed in a fluid. The sacrificial agent is selected from the group consisting of a compound comprising a single carboxylic acid, a single carboxylic acid derivative, or a single carboxylate salt, or a compound lacking a carboxylic acid group, a carboxylate group, a sulfonic acid group, or a sulfonate group that is a pheol, a sulphonamide, or a thiol, or a compound having a molecular weight of 1000 or less that comprises one or more hydroxyl groups. The oil recovery formulation is introduced into a petroleum-bearing formation and petroleum is produced therefrom.

    Abstract translation: 提供了一种利用牺牲剂和表面活性剂从地层中生产石油的方法和系统。 牺牲剂减少了从含石油地层提高采油量所需的表面活性剂的量。 牺牲剂提供在包含牺牲剂和分散在流体中的表面活性剂的油采收制剂中。 牺牲剂选自包含单一羧酸，单一羧酸衍生物或单一羧酸盐的化合物，或不含羧酸基的化合物，羧酸酯基，磺酸基或 磺酰胺或硫醇，或分子量为1000以下的包含一个或多个羟基的化合物。 将采油配方引入含石油地层，由此生产石油。

    PROCESS AND COMPOSITION FOR PRODUCING OIL
    6.
    发明申请
    PROCESS AND COMPOSITION FOR PRODUCING OIL 审中-公开
    生产油的方法和组合物

    公开(公告)号：US20150197685A1

    公开(公告)日：2015-07-16

    申请号：US14596377

    申请日：2015-01-14

    Applicant: SHELL OIL COMPANY

    Inventor： Jeffrey George SOUTHWICK ,  Richard Charles NELSON ,  Esther VAN DEN POL

    IPC: C09K8/588

    CPC classification number: C09K8/588 ,  C09K8/584

    Abstract: A process and composition for producing oil from a formation utilizing an oil recovery formulation comprising a surfactant, an ammonia liquid, an alkali metal bicarbonate, a polymer, and water, the composition having a pH of less than 10, are provided.

    Abstract translation: 提供了一种使用包含表面活性剂，氨液体，碱金属碳酸氢盐，聚合物和水的油回收制剂从地层生产油的方法和组合物，该组合物的pH小于10。

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