Generating Relative Permeabilities and Capillary Pressures
    21.
    发明申请
    Generating Relative Permeabilities and Capillary Pressures 审中-公开
    产生相对渗透率和毛细管压力

    公开(公告)号:US20150369957A1

    公开(公告)日:2015-12-24

    申请号:US14741913

    申请日:2015-06-17

    CPC classification number: E21B49/08 E21B49/00 E21B49/088 E21B49/10 G01N15/0826

    Abstract: An apparatus is operated to obtain a model predicting data associated with a theoretical sampling operation to be performed by a downhole sampling tool, including predicted water-cut and pressure data relative to time elapsed during the theoretical sampling operation. The model predicts the water-cut and pressure data based on estimated relative permeability and capillary pressure related to different constituents of fluid theoretically obtained from a subterranean formation by the downhole sampling tool during the theoretical sampling operation. An actual sampling operation is performed with the downhole sampling tool to actually obtain fluid and data associated with the actually obtained fluid, including actual water-cut and drawdown pressure data. The apparatus is then operated to update the model utilizing the actual data water-cut and drawdown pressure data, thus obtaining actual relative permeability and capillary pressure data.

    Abstract translation: 操作装置以获得预测与由井下采样工具执行的理论采样操作相关联的数据的模型,包括相对于在理论抽样操作期间经过的时间的预测的水切割和压力数据。 该模型基于在理论抽样操作期间由井下采样工具从地下地层理论上获得的流体的不同成分相关的估计的相对渗透率和毛细管压力,预测了水分和压力数据。 利用井下采样工具进行实际采样操作,以实际获得与实际获得的流体相关的流体和数据,包括实际的水分和压降数据。 然后操作该装置,利用实际的数据切割和抽取压力数据更新模型,从而获得实际的相对渗透率和毛细管压力数据。

    Packer Tool Including Multiple Ports
    22.
    发明申请
    Packer Tool Including Multiple Ports 有权
    封隔器工具包括多个端口

    公开(公告)号:US20150176376A1

    公开(公告)日:2015-06-25

    申请号:US14136935

    申请日:2013-12-20

    CPC classification number: E21B43/12 E21B33/1243 E21B47/06

    Abstract: A tool to be used within a wellbore including a wall, the wellbore extending through a formation including formation fluid, includes a first packer and a second packer. The first packer includes a packer port to enable formation fluid flow through the first packer, with the second packer spaced from the first packer. The first packer and the second packer are expandable to abut the wellbore wall to form an interval within the wellbore between the first packer and the second packer, in which the tool further includes an interval port in fluid communication with the interval.

    Abstract translation: 在井眼内使用的工具,包括壁,穿过包括地层流体的地层的井筒,包括第一封隔器和第二封隔器。 第一封隔器包括封隔器端口,以使得地层流体能够流过第一封隔器,第二封隔器与第一封隔器隔开。 第一封隔器和第二封隔器可扩张以邻接井眼壁,以在第一封隔器和第二封隔器之间的井筒内形成间隔,其中该工具还包括与该区间流体连通的间隔端口。

    Method Of Testing A Barrier In A Wellbore
    23.
    发明申请
    Method Of Testing A Barrier In A Wellbore 审中-公开
    井眼测试屏障的方法

    公开(公告)号:US20150159480A1

    公开(公告)日:2015-06-11

    申请号:US14564913

    申请日:2014-12-09

    CPC classification number: E21B47/06 E21B33/124 E21B47/1025

    Abstract: A method of testing a barrier in a wellbore that includes isolating a volume in the wellbore between an isolation device connected with an apparatus and the barrier, and pressure testing the barrier using the apparatus to adjust the pressure in the volume.

    Abstract translation: 一种测试井眼中的屏障的方法,包括隔离在与设备连接的隔离装置与隔离物之间的井眼中的体积,以及使用该装置对该阻挡层进行压力测试以调节体积中的压力。

    System and method for controlled pumping in a downhole sampling tool

    公开(公告)号:US11280188B2

    公开(公告)日:2022-03-22

    申请号:US16852905

    申请日:2020-04-20

    Abstract: A downhole tool designed to be disposed in a borehole of a subterranean formation that includes a probe used to interface with the subterranean formation in order to sample fluid from or to inject fluid into the subterranean formation. The downhole tool also includes a sample flowline fluidly coupled to the probe and used to direct fluid through the downhole tool. The downhole tool further includes at least two volume chambers. These volume chambers each include a first side fluidly coupled to the sample flowline, a second side fluidly coupled to the guard flowline, and a piston separating the first side from the second side. The downhole tool is able to control a flow of fluid from a high pressure environment to a low pressure environment via the at least two volume chambers, the sample flowline, and the guard flowline.

    Generating relative permeabilities and capillary pressures

    公开(公告)号:US10358917B2

    公开(公告)日:2019-07-23

    申请号:US14741913

    申请日:2015-06-17

    Abstract: An apparatus is operated to obtain a model predicting data associated with a theoretical sampling operation to be performed by a downhole sampling tool, including predicted water-cut and pressure data relative to time elapsed during the theoretical sampling operation. The model predicts the water-cut and pressure data based on estimated relative permeability and capillary pressure related to different constituents of fluid theoretically obtained from a subterranean formation by the downhole sampling tool during the theoretical sampling operation. An actual sampling operation is performed with the downhole sampling tool to actually obtain fluid and data associated with the actually obtained fluid, including actual water-cut and drawdown pressure data. The apparatus is then operated to update the model utilizing the actual data water-cut and drawdown pressure data, thus obtaining actual relative permeability and capillary pressure data.

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