Methods and apparatus to sample heavy oil in a subterranean formation
    2.
    发明授权
    Methods and apparatus to sample heavy oil in a subterranean formation 有权
    用于在地层中采样重油的方法和设备

    公开(公告)号:US08496054B2

    公开(公告)日:2013-07-30

    申请号:US11962857

    申请日:2007-12-21

    IPC分类号: E21B49/10

    摘要: A method for sampling fluid in a subterranean formation includes, reducing a viscosity of a fluid, pressurizing a portion of the subterranean formation and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.

    摘要翻译: 用于对地下地层中的流体进行采样的方法包括:降低流体的粘度,加压地下地层的一部分并收集流体样品。 具体地说,通过将位移流体注入到地下地层中,地层的一部分中的流体的粘度降低,地层的一部分被加压。 然后收集由置换液体加压的流体样品。

    Apparatus and Method for Formation Evaluation
    5.
    发明申请
    Apparatus and Method for Formation Evaluation 有权
    装置及方法评估

    公开(公告)号:US20070209793A1

    公开(公告)日:2007-09-13

    申请号:US11739536

    申请日:2007-04-24

    IPC分类号: E21B49/08

    CPC分类号: E21B49/10

    摘要: A method for acquiring a sample of a virgin fluid from a subsurface formation penetrated by a wellbore surrounded by a layer of contaminated fluid is disclosed. The method includes abutting a first packer against a wall of the wellbore, and extending at least a portion of a second packer beyond the first packer, wherein the second packer is at least partially disposed in the first packer. An inlet to a first flowline is at least partially defined by the first packer, and an inlet to a second flowline is defined by the second packer. The method further includes drawing one of virgin fluid, contaminated fluid and combinations thereof into the first flowline; and drawing virgin fluid into the second flowline.

    摘要翻译: 公开了一种从受污染流体层围绕的井眼渗透的地下地层获取原始流体样品的方法。 该方法包括将第一封隔器抵靠井壁的壁,并将第二封隔器的至少一部分延伸超过第一封隔器,其中第二封隔器至少部分地布置在第一封隔器中。 第一流线的入口至少部分地由第一封隔器限定,并且第二流线的入口由第二封隔器限定。 该方法还包括将初始流体,污染流体及其组合中的一种引入第一流线中; 并将原始流体绘制到第二流线中。

    Cleanup production during sampling
    7.
    发明授权
    Cleanup production during sampling 有权
    抽样过程中清理生产

    公开(公告)号:US08744774B2

    公开(公告)日:2014-06-03

    申请号:US12742677

    申请日:2008-11-10

    IPC分类号: E21B49/08 G06G7/48

    CPC分类号: E21B49/08 E21B49/087

    摘要: Cleanup monitoring and prediction in real time targeting estimation of pumpout volume versus final contamination, including detecting breakthrough of formation fluid to a sampling tool and detecting transition of cleanup regime from a predominantly circumferential cleanup regime to a predominantly vertical cleanup regime. Similar workflow can be employed for estimating contamination at the end of cleanup production for a given pumpout volume.

    摘要翻译: 清理监测和预测实时目标估计抽水量与最终污染,包括检测地层流体到采样工具的突破,以及检测清理方案从主要是周向清理方式向主要垂直清理方式的转变。 可以采用类似的工作流程来估计给定抽水量的净化生产结束时的污染。