Methods of Mitigating Lost Circulation While Drilling a Wellbore

    公开(公告)号:US20190186231A1

    公开(公告)日:2019-06-20

    申请号:US16189586

    申请日:2018-11-13

    IPC分类号: E21B33/12 E21B33/134

    摘要: Methods of mitigating lost circulation while drilling a wellbore. The methods include circulating a drilling mud to a downhole end of the wellbore via a drill string and, during the circulating, drilling the wellbore with a drill bit of the drill string. The methods also include detecting lost circulation within the wellbore while drilling the wellbore and include providing a monomer solution to the wellbore. The methods further include providing a catalyst to the wellbore responsive to detecting the lost circulation event and combining the monomer solution and the catalyst to polymerize a monomer from the monomer solution, within the wellbore, and forming a viscous plug within the wellbore. Subsequent to the combining, the methods include flowing at least a portion of the viscous plug within the wellbore and into a zone of lost circulation that extends within a subsurface region. The methods further include at least partially occluding fluid flow from the wellbore and into the zone of lost circulation with the viscous plug.

    Subsea well control system
    24.
    发明授权

    公开(公告)号:US10287849B2

    公开(公告)日:2019-05-14

    申请号:US15235496

    申请日:2016-08-12

    摘要: Systems, apparatus, and methods for controlling a well blowout comprising: a plug-forming agent reservoir comprising a plug-forming agent proximate a wellbore, the plug-forming agent reservoir in selective fluid communication with the wellbore; providing a pressure source capable of pressurizing the plug-forming agent reservoir containing the plug-forming agent to delivery pressure; and selectively introducing the pressurized first plug-forming agent into the wellbore to form a flow-restricting plug within the wellbore. Exemplary plug-forming agents are provided.

    Method and apparatus for detection of a liquid under a surface
    27.
    发明授权
    Method and apparatus for detection of a liquid under a surface 有权
    用于检测表面下的液体的方法和装置

    公开(公告)号:US08436609B2

    公开(公告)日:2013-05-07

    申请号:US12672969

    申请日:2008-08-29

    IPC分类号: G01V3/00

    摘要: Methods for detecting a liquid under a surface and characterizing Ice are provided The liquid may be a liquid hydrocarbon such as crude oil or fuel oil or mineral oil The surface may be ice, snow, or water, and the method may be practiced in an arctic region to detect oil spills, leaks, or seepages The methods may be used with a range finder to characterize marine ice The methods may include a nuclear magnetic resonance (NMR) tool with antenna to send a radio-frequency (RF) excitation pulse or signal into volume of substances being detected, detect an NMR response signal to determine the presence of the liquid of interest The NMR response may include a relaxation time element and an intensity level and may include a free induction signal (T2*), a spin echo signal (T2), a train of spin echo signals (T2), or a thermal equilibrium signal (T 1).

    摘要翻译: 提供用于检测表面下的液体并表征冰的方法液体可以是诸如原油或燃料油或矿物油的液体烃。表面可以是冰,雪或水,并且该方法可以在北极 检测漏油,泄漏或泄漏的方法可以与测距仪一起使用以表征海洋冰。该方法可以包括具有天线的核磁共振(NMR)工具以发送射频(RF)激发脉冲或信号 检测到的物质的体积,检测NMR响应信号以确定感兴趣的液体的存在。NMR响应可以包括弛豫时间元素和强度水平,并且可以包括自由感应信号(T2 *),自旋回波信号 (T2),一系列自旋回波信号(T2)或热平衡信号(T 1)。

    Ice Break-Up Using Artificially Generated Waves
    28.
    发明申请
    Ice Break-Up Using Artificially Generated Waves 有权
    使用人为产生的波浪分解冰

    公开(公告)号:US20110188938A1

    公开(公告)日:2011-08-04

    申请号:US12981155

    申请日:2010-12-29

    IPC分类号: E02B3/00 B63B35/08

    CPC分类号: B63B35/08 E02B3/00

    摘要: A system and method for clearing an approaching floating ice mass comprising locating a hydrocarbon development platform in a marine environment, and determining a direction from which the ice mass is approaching the hydrocarbon development platform. The method also includes providing an intervention vessel having a water-agitating mechanism associated therewith for propagating artificially generated waves towards a leading edge of the approaching ice mass to fracture the ice mass along the leading edge, thereby causing small ice pieces to separate from the ice mass.

    摘要翻译: 一种用于清除接近的浮冰块的系统和方法,包括在海洋环境中定位烃开发平台,以及确定冰块接近烃开发平台的方向。 该方法还包括提供具有与其相关联的水搅拌机构的介入容器,用于向接近的冰体的前缘传播人为产生的波浪,以使冰块沿着前缘裂开,从而使小冰块与冰分离 质量

    Method And Apparatus For Detection of A Liquid Under A Surface
    29.
    发明申请
    Method And Apparatus For Detection of A Liquid Under A Surface 有权
    用于检测表面液体的方法和装置

    公开(公告)号:US20110181279A1

    公开(公告)日:2011-07-28

    申请号:US12672969

    申请日:2008-08-29

    IPC分类号: G01R33/44

    摘要: Methods for detecting a liquid under a surface and characterizing Ice are provided The liquid may be a liquid hydrocarbon such as crude oil or fuel oil or mineral oil The surface may be ice, snow, or water, and the method may be practiced in an arctic region to detect oil spills, leaks, or seepages The methods may be used with a range finder to characterize marine ice The methods may include a nuclear magnetic resonance (NMR) tool with antenna to send a radio-frequency (RF) excitation pulse or signal into volume of substances being detected, detect an NMR response signal to determine the presence of the liquid of interest The NMR response may include a relaxation time element and an intensity level and may include a free induction signal (T2*), a spin echo signal (T2), a train of spin echo signals (T2), or a thermal equilibrium signal (T 1).

    摘要翻译: 提供用于检测表面下的液体并表征冰的方法液体可以是诸如原油或燃料油或矿物油的液体烃。表面可以是冰,雪或水,并且该方法可以在北极 检测漏油,泄漏或泄漏的方法可以与测距仪一起使用以表征海洋冰。该方法可以包括具有天线的核磁共振(NMR)工具以发送射频(RF)激发脉冲或信号 检测到的物质的体积,检测NMR响应信号以确定感兴趣的液体的存在。NMR响应可以包括弛豫时间元素和强度水平,并且可以包括自由感应信号(T2 *),自旋回波信号 (T2),一系列自旋回波信号(T2)或热平衡信号(T 1)。

    Systems and methods for achieving three-phase separation and core annular flow in pipelines

    公开(公告)号:US10246983B2

    公开(公告)日:2019-04-02

    申请号:US15615129

    申请日:2017-06-06

    摘要: A method for the subsea transport of a multi-phase production fluid from a wellhead to a point remote from the wellhead, the multi-phase production fluid comprising a water phase, an oil phase and a gas phase. The method includes introducing the multi-phase production fluid into a pipeline, the pipeline extending from proximate the wellhead to a point remote from the wellhead; imparting rotational motion to the multi-phase production fluid; wherein the rotational motion of the multi-phase production fluid separates the water phase from the oil phase and the gas phase and reduces the pressure drop along the pipeline. A system for the subsea transport of a multi-phase production fluid from a wellhead to a point remote from the wellhead and a method for reducing hydrate formation during the subsea transport of a multi-phase production fluid from a wellhead to a point remote from the wellhead are also provided.