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    • 2. 发明授权
    • System for characterizing surfaces of pipes, ducts or similar structures
    • 用于表征管道,管道或类似结构的表面的系统
    • US5686674A
    • 1997-11-11
    • US514592
    • 1995-08-14
    • William E. LowrySandra Dalvit DunnCharles D. CremerEric J. Cramer
    • William E. LowrySandra Dalvit DunnCharles D. CremerEric J. Cramer
    • E21B23/08F16L55/48
    • F16L55/48E21B23/08
    • A system for characterizing contamination or integrity information from within a pipe, including a flexible tubular membrane which is extendable within the pipe and inflatable to a diameter effective to urge the tubular membrane against the rigid wall. The tubular membrane has a first end and a second end, and is initially rolled up and connected to a reel inside of a deployment system. A tether connects the deployment system to a characterization tool retained within the tubular membrane, which is attached adjacent to the second end of the tubular membrane. When the system is engaged, pressurized fluid enters the tubular membrane causing the membrane to invert and distend into and through the pipe's interior. Simultaneously, the attached characterization tool is towed adjacent to and in parallel with the path of the tubular membrane's second end, is protected from contamination by the surrounding tubular membrane, and is capable of repetitive testing for several forms of information, such as structural integrity of the pipe's interior or radioactive contamination. As the tool traverses the pipe's interior, this information is transmitted to a data acquisition system. When the system is disengaged, the deployment system, the tether and the characterization tool are used to retrieve the system in reverse order. A vent is provided for equalizing pressure beneath the tubular membrane while retracting the membrane.
    • 用于从管内表征污染或完整性信息的系统,包括柔性管状膜,其可在管内延伸并且可膨胀至直径以有效地将管状膜推向刚性壁。 管状膜具有第一端和第二端,并且初始地卷起并连接到展开系统内部的卷筒。 系绳将部署系统连接到保持在管状膜内的表征工具,其连接在管状膜的第二端附近。 当系统接合时,加压流体进入管状膜,导致膜反转并膨胀并穿过管道的内部。 同时,附着的表征工具在管状膜的第二端的路径附近被拖曳并且与管状膜的第二端的路径平行地被保护,免受周围管状膜的污染,并且能够重复测试几种形式的信息,例如结构完整性 管道内部或放射性污染。 当工具穿过管道内部时,该信息被传送到数据采集系统。 当系统脱离时,部署系统,系绳和表征工具用于以相反的顺序检索系统。 提供排气口用于在收缩膜的同时使管状膜下方的压力均衡。
    • 3. 发明授权
    • In situ measurement apparatus and method of measuring soil permeability
and fluid flow
    • 测量土壤渗透率和流体流量的现场测量仪器和方法
    • US6098448A
    • 2000-08-08
    • US061078
    • 1998-04-15
    • William E. LowryNeva Gray MasonDaniel Merewether
    • William E. LowryNeva Gray MasonDaniel Merewether
    • G01N15/08
    • G01N15/08G01N15/0826
    • An apparatus and method for discrete soil gas and saturated liquid permeability measurements with direct push emplacement systems (such as a cone penetrometer rod). A modified direct push emplacement system having at least one injection port and at least two measurement ports is first engaged to penetrate the soil to a predetermined depth. Gas or liquid is then injected into the soil at a predetermined location on the penetrometer rod. Next, a pressure response is recorded from each measurement port, which is at a known distance from the injection port (on the same penetrometer rod). This differential pressure response data allows calculation of the soil permeability directly by using a one-dimensional, spherical, steady state, porous flow model to measure the effective permeability of the soil, without substantial disturbance of the surrounding soil. The present invention minimizes false indications of reduced permeability as a result of soil compaction during the penetrometer emplacement.
    • 一种用于离散土壤气体和饱和液体渗透性测量的设备和方法,具有直接推入位置系统(例如锥形穿透仪棒)。 首先接合具有至少一个注射口和至少两个测量口的改进的直接推入装置,以将土壤穿透到预定的深度。 然后将气体或液体在穿透仪棒上的预定位置注入土壤中。 接下来,从距离注入口(在相同的测量棒上)已知距离的每个测量端口记录压力响应。 这种压差响应数据可以直接使用一维球形稳态多孔流模型来计算土壤渗透率,以测量土壤的有效渗透率,而不会对周围土壤产生实质的干扰。 本发明使渗透仪在渗透计量过程中由于土壤压实而导致的渗透性降低的错误迹象最小化。