Secondary oil recovery
    1.
    发明授权
    Secondary oil recovery 失效
    二次恢复

    公开(公告)号:US3805892A

    公开(公告)日:1974-04-23

    申请号:US31758272

    申请日:1972-12-22

    Applicant: TEXACO INC

    Inventor: HAYNES S

    CPC classification number: E21B43/18 E21B43/30

    Abstract: Improving secondary recovery following breakthrough of driving fluid at the production wells of inverted five-spot patterns by reversing the functions of injection wells in alternate patterns to producing and that of production wells to injecting.

    Abstract translation: 在逆向五点模式生产井的驱动流体突破后,通过将注入井的功能反转到生产和生产井注入的功能,提高二次恢复。

    Method for recovery of hydrocarbons utilizing steam injection
    2.
    发明授权
    Method for recovery of hydrocarbons utilizing steam injection 失效
    采用蒸汽注射法回收烃类的方法

    公开(公告)号:US3732926A

    公开(公告)日:1973-05-15

    申请号:US3732926D

    申请日:1971-06-01

    Applicant: TEXACO INC

    CPC classification number: E21B43/24 C09K8/592

    Abstract: A method of recovering hydrocarbons from a subterranean hydrocarbon-bearing formation wherein a mixture of steam and a minor amount of an interfacial tension reducer, such as quinoline, etc. is introduced into the formation and oil displaced through the formation is recovered through a production well. Preferably, the formation is heated prior to the introduction of the steam-interfacial tension reducer mixture.

    Abstract translation: 从地下含烃地层中回收碳氢化合物的方法,其中将蒸汽和少量界面张力减少剂(例如喹啉等)的混合物引入地层,通过地层排出的油被回收通过生产井 。 优选地,在引入蒸汽界面张力减小剂混合物之前,将地层加热。

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