Measuring hydrocarbon content of a rock formation downhole using laser-induced vaporization and pyrolysis
    41.
    发明授权
    Measuring hydrocarbon content of a rock formation downhole using laser-induced vaporization and pyrolysis 有权
    使用激光诱导蒸发和热解测量井下岩层的烃含量

    公开(公告)号:US09593983B2

    公开(公告)日:2017-03-14

    申请号:US14477740

    申请日:2014-09-04

    Abstract: A downhole tool to make one or more downhole measurements of laser-induced vaporization and/or pyrolysis of hydrocarbons is provided and disposed at a desired location within a wellbore. A tool head of the downhole tool is brought into sealing engagement with the wellbore wall. The fluid within an interior region enclosed by the tool head and the wellbore wall is evacuated and a measurement spot is irradiated with a laser to generate volatile hydrocarbons and/or pyrolytic hydrocarbons. Measurements are made on the volatile hydrocarbons and/or pyrolytic hydrocarbons and one or more formation properties are inferred based on the measurements. A low level of laser radiation intensity, irradiating some or all of the wellbore wall enclosing the interior region, may be used to prevent measurement contamination, and both medium power and high power levels of laser radiation may be used to first vaporize and then pyrolyze the hydrocarbons.

    Abstract translation: 提供并设置在井筒内的期望位置处进行一个或多个井下测量激光诱导的烃的蒸发和/或热解的井下工具。 井下工具的工具头与井筒壁密封接合。 由工具头和井眼壁包围的内部区域内的流体被抽真空,并且用激光照射测量点以产生挥发性烃和/或热解烃。 对挥发性烃和/或热解烃进行测量,并且基于测量推断出一种或多种形成性质。 可以使用低水平的激光辐射强度,照射围绕内部区域的井眼壁的一些或全部,以防止测量污染,并且可以使用中等功率和高功率水平的激光辐射来首先蒸发然后热解 碳氢化合物。

    Geomechanical logging tool
    42.
    发明授权
    Geomechanical logging tool 有权
    地质力学测井工具

    公开(公告)号:US09482087B2

    公开(公告)日:2016-11-01

    申请号:US13857620

    申请日:2013-04-05

    CPC classification number: E21B49/00 G01V9/00 G01V11/005

    Abstract: An apparatus including a body having a central axis defined therethrough, at least one extendable arm coupled to the body, and a mechanical property tester coupled to the at least one extendable arm, the mechanical property tester configured to penetrate a surface of a borehole and to measure one or more mechanical properties of the surface of the borehole.

    Abstract translation: 一种装置,包括具有穿过其中限定的中心轴线的主体,连接到所述主体的至少一个可伸展臂以及耦合到所述至少一个可伸展臂的机械特性测试器,所述机械特性测试器构造成穿透钻孔的表面,并且 测量钻孔表面的一个或多个机械性能。

    FRACTURING WHILE TRIPPING
    43.
    发明申请
    FRACTURING WHILE TRIPPING 审中-公开
    破碎时抓住

    公开(公告)号:US20160265329A1

    公开(公告)日:2016-09-15

    申请号:US14642845

    申请日:2015-03-10

    CPC classification number: E21B43/26 E21B33/124 E21B47/00

    Abstract: A drill string includes drill pipe and a modular fracturing sub. A processor can control the drill string to drill a wellbore to some desired depth. The drill string is positioned at a desired location in the wellbore and a section of the wellbore is hydraulically isolated, forming a cavity. Existing fluid may be evacuated from the cavity and fracturing fluid injected into the cavity until a desired level of fracturing is attained. Retrievable packers are used for the hydraulic isolation. A pump evacuates the existing fluid via ports in the fracturing sub. The ports may also be used when injecting fracturing fluid. Seismic sensors may be distributed along the drill string to monitor fracture growth. Logging-while-drilling tools may be integrated into the drill string. Fluid from the lower portion of the wellbore is blocked by a lower sealing unit on a bottomhole assembly.

    Abstract translation: 钻柱包括钻杆和模块化压裂子。 处理器可以控制钻柱将钻井钻井到一些所需的深度。 钻柱被定位在井筒中的期望位置处,并且井眼的一部分被液压地隔离,形成空腔。 现有的流体可以从空腔中抽出并将压裂流体注入腔中,直到获得所需的压裂水平。 可拆卸的包装机用于液压隔离。 泵通过压裂副的端口排出现有流体。 注射压裂液时也可以使用这些端口。 地震传感器可以沿钻柱分布以监测断裂增长。 钻井工具可以集成在钻柱中。 来自井筒下部的流体被井底组件上的下密封单元堵塞。

    Monitoring Carbon Dioxide Flooding Using Nuclear Magnetic Resonance (NMR) Measurements
    44.
    发明申请
    Monitoring Carbon Dioxide Flooding Using Nuclear Magnetic Resonance (NMR) Measurements 审中-公开
    使用核磁共振(NMR)测量监测二氧化碳洪水

    公开(公告)号:US20160161629A1

    公开(公告)日:2016-06-09

    申请号:US14886187

    申请日:2015-10-19

    CPC classification number: G01V3/32 E21B47/04 E21B49/008 G01R33/448

    Abstract: A NMR logging tool is provided and disposed at some desired depth in a wellbore penetrating a subsurface formation. A first set of NMR measurements is made over a desired depth range and depth of investigation, wherein the first set of NMR measurements includes a first NMR signal intensity. Supercritical carbon dioxide is injected into the formation and a second set of NMR measurements is made over the desired depth range and depth of investigation, wherein the second set of NMR measurements includes a second NMR signal intensity. The first NMR signal intensity is compared to the second NMR signal intensity and one or more properties of the formation are inferred using the compared NMR measurements. A magnetic field gradient that varies a static magnetic field along a desired spatial dimension of a region of investigation may be provided to map a rate of fluid movement.

    Abstract translation: 提供NMR测井工具并将其设置在穿透地下地层的井眼中的某些所需深度处。 在所需的深度范围和调查深度上进行第一组NMR测量,其中第一组NMR测量包括第一NMR信号强度。 将超临界二氧化碳注入到地层中,并在所需的深度范围和深度进行第二组NMR测量,其中第二组NMR测量包括第二NMR信号强度。 将第一NMR信号强度与第二NMR信号强度进行比较,并使用比较的NMR测量推断地层的一个或多个性质。 可以提供沿着调查区域的期望空间维度改变静态磁场的磁场梯度以映射流体运动的速率。

    MECHANICALLY ASSISTED FRACTURE INITIATION
    45.
    发明申请
    MECHANICALLY ASSISTED FRACTURE INITIATION 审中-公开
    机械辅助断裂启动

    公开(公告)号:US20150322760A1

    公开(公告)日:2015-11-12

    申请号:US14652040

    申请日:2013-10-11

    Abstract: Systems and methods are described for controlling the location where a fracture initiates and the fracture direction at the initiation point. A mechanical device is positioned in a main wellbore or partially or fully in a side hole off of the main wellbore. The mechanical device is actuated so as to contact the formation walls and induce stress in the formation. According to some embodiments, fractures are also initiated using the mechanical device. A hydraulic fracturing process is then carried out to fracture and/or propagate fractures in locations and/or directions according to the actuation of the mechanical device.

    Abstract translation: 描述了用于控制断裂发生的位置和起始点处的断裂方向的系统和方法。 机械装置位于主井眼中,或者部分地或完全地位于主井眼的侧孔中。 机械装置被致动以接触地层壁并在地层中引起应力。 根据一些实施例,还使用机械装置启动裂缝。 然后根据机械装置的致动进行水力压裂过程以在位置和/或方向断裂和/或传播断裂。

    METHODS FOR SEPARATING OIL AND WATER ON MULTIDIMENSIONAL NUCLEAR MAGNETIC RESONANCE MAPS
    46.
    发明申请
    METHODS FOR SEPARATING OIL AND WATER ON MULTIDIMENSIONAL NUCLEAR MAGNETIC RESONANCE MAPS 审中-公开
    用于分离多个核磁共振膜上的油和水的方法

    公开(公告)号:US20150130460A1

    公开(公告)日:2015-05-14

    申请号:US14536823

    申请日:2014-11-10

    CPC classification number: G01V3/32 G01N24/081

    Abstract: Methods are provided for separating oil and water signals in multidimensional nuclear magnetic resonance (NMR) maps. In one embodiment, separate multidimensional NMR maps are provided for oil and water content. In another embodiment, an oil-water boundary and a water-gas boundary are generated on a D-T2 map. The boundaries may be curved boundaries or lines.

    Abstract translation: 提供了用于在多维核磁共振(NMR)图中分离油和水信号的方法。 在一个实施方案中,提供用于油和水含量的单独的多维NMR图。 在另一个实施例中,在D-T2图上产生油水边界和水气边界。 边界可以是弯曲的边界或线。

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