Tertiary recovery operation
    6.
    发明授权
    Tertiary recovery operation 失效
    临时恢复操作

    公开(公告)号:US3878891A

    公开(公告)日:1975-04-22

    申请号:US31758072

    申请日:1972-12-22

    Applicant: TEXACO INC

    Inventor: HOYT DONALD L

    CPC classification number: E21B43/30

    Abstract: Following completion of a secondary recovery operation at breakthrough of the driving flood at the production wells, additional injection wells are located where the oil saturation in the formation is usually higher, usually adjacent production wells with the new injection wells being located between production wells.

    Abstract translation: 在完成对生产井的驱动洪水突破的二次恢复操作之后,还有另外的注入井位于地层中的油饱和度通常较高,通常在生产井附近,新的注入井位于生产井之间。

    Interface advance control in secondary recovery program by reshaping of the interface between driving and driven fluids and by the use of a dynamic gradient barrier
    7.
    发明授权
    Interface advance control in secondary recovery program by reshaping of the interface between driving and driven fluids and by the use of a dynamic gradient barrier 失效
    通过修复驱动和驱动流体之间的界面以及使用动态梯度障碍物来进行二次恢复程序中的界面提前控制

    公开(公告)号:US3672448A

    公开(公告)日:1972-06-27

    申请号:US3672448D

    申请日:1970-12-30

    Applicant: TEXACO INC

    Inventor: HOYT DONALD L

    CPC classification number: E21B43/30 E21B43/16

    Abstract: The interface between driving and driven fluids in a secondary recovery operation is reshaped after a cusp has developed by injection of a fluid via wells controlling the flow gradients, and the arrival of the injected driving fluid into the vicinity of a production well is delayed by the imposition of a dynamic gradient barrier of produced formation fluids.

    Abstract translation: 在二次回收操作中的驱动和驱动流体之间的界面在通过经由控制流动梯度的孔注入流体而形成尖端之后重新成形,并且注入的驱动流体到达生产井附近的时间被延迟 施加产生的地层流体的动态梯度屏障。

    Tertiary recovery operation
    9.
    发明授权
    Tertiary recovery operation 失效
    三级恢复操作

    公开(公告)号:US3874449A

    公开(公告)日:1975-04-01

    申请号:US40711273

    申请日:1973-10-17

    Applicant: TEXACO INC

    CPC classification number: E21B43/18 E21B43/30

    Abstract: At the conclusion of a secondary recovery operation after breakthrough of the driving fluid at the production wells in a direct line drive, injection wells in alternate series are shut in and the production wells in the adjacent series are converted to injection wells, for tertiary recovery via the remainder of the production wells by the imposition of a new set of flow gradients.

    Abstract translation: 在直接驱动中在生产井的驱动液体突破后的二次恢复操作结束时,关闭了替代系列的注入井,并将相邻系列中的生产井转换为注入井,以通过 剩下的生产井通过施加一套新的流动梯度。

    Means and method for automatically determining the interface positions of an injection fluid in a petroleum or gas reservoir using an electrolytic model of the reservoir
    10.
    发明授权
    Means and method for automatically determining the interface positions of an injection fluid in a petroleum or gas reservoir using an electrolytic model of the reservoir 失效
    用于自动确定使用储存器的电解质模型的石油或天然气储存器中的注射液的界面位置的方法和方法

    公开(公告)号:US3684872A

    公开(公告)日:1972-08-15

    申请号:US3684872D

    申请日:1970-10-30

    Applicant: TEXACO INC

    CPC classification number: G06G7/57 G06G7/42

    Abstract: WHERE Vrx and Vry are the X and Y components, respectively, of the velocity of flow in the reservoir at a point r, Q is the rate of a forcing fluid entering the reservoir, i is the total current in the electrolytic solution, Phi is the effective porosity of the medium containing the reservoirs, Sv and Sh are the vertical and horizontal scale factors, respectively, of the reservoir to the model and ARE VOLTAGE GRADIENTS IN THE X and Y directions, respectively, at a point in the model corresponding to the point r in the reservoir. the velocities are used to compute the interface positions of the petroleum or gas and the fluid in the reservoir by determining each incremental change in distance Delta s for a point, commonly referred to as a trace point of the interface between the fluid and the petroleum or gas, in accordance with the following equation:
    An insulated grid, having four electrode probes at each intersection, overlays an analog model, using an electrolytic solution, of a petroleum or gas reservoir so that some or all of the probes are immersed in the electrolytic solution. Electrodes representing an injection well and a withdrawal well in the reservoir introduce an alternating current in the electrolytic solution corresponding to the injection rate of a fluid in the injection well. Alternating current voltages present at the probes, resulting from the alternating current in the electrolytic solution, are processed to provide digital signals. The digital signals are applied to a digital computer which determines the fluid velocity at a point r of the reservoir in accordance with the following vector equations:

    Abstract translation: 在每个交点处具有四个电极探针的绝缘栅格覆盖石油或气体储存器的电解溶液的模拟模型,使得一些或全部探针浸入电解溶液中。 在储存器中表示注入井和抽出井的电极在电解溶液中引入与注入井中的流体注入速率相对应的交流电。 由电解液中的交流产生的探针上存在的交流电压被处理以提供数字信号。 数字信号被施加到数字计算机,该数字计算机根据以下矢量方程确定储层的点r处的流体速度:

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