Composite sampling of fluids
    2.
    发明授权

    公开(公告)号:US09945821B2

    公开(公告)日:2018-04-17

    申请号:US14804846

    申请日:2015-07-21

    摘要: Composite sampling of a fluid flowing through a conduit includes collecting, in a vessel coupled to the conduit through which the fluid is flowing, a first discrete sample of fluid from the conduit, the first discrete sample having a first selected volume, and collecting, in the vessel and at a first interval from the first sample, a second discrete sample of the fluid from the conduit, the second discrete sample having a second selected volume, thereby forming a composite sample in the vessel while the vessel is coupled to conduit. The composite sample includes the first discrete sample and the second discrete sample, and may include one or more additional discrete samples. An apparatus for collecting the composite sample includes a gas chromatograph, and is arranged such that the composite sample is provided to the gas chromatograph without removing the composite sample from the apparatus or transporting the composite sample.

    Speed Loop for Take-Off and Return by Single Pipeline Probe

    公开(公告)号:US20170089809A1

    公开(公告)日:2017-03-30

    申请号:US15252686

    申请日:2016-08-31

    发明人: Claude A. Rolston

    IPC分类号: G01N1/20 G01N1/44

    摘要: A post-probe upstream metering pump for insuring phase change completion of a multi-phase fluid such as Natural Gas Liquid (NGL) in a sample conditioning system having a pipeline sample take-off probe for fluid extraction, a sample conditioning unit for conditioning the extracted fluid to a select range of temperature and pressure for analysis of the fluid sample by an associated analyzer without dew point dropout or phase separation, and a metering pump disposed in-line between the sample take-off probe and the sample conditioning unit to pressurize the fluid sample to condense into a substantially fully liquid phase and to reduce lag time between extraction and fluid sample conditioning.

    Methods and systems for determining and using gas extraction correction coefficients at a well site
    6.
    发明授权
    Methods and systems for determining and using gas extraction correction coefficients at a well site 有权
    在井场确定和使用气体提取校正系数的方法和系统

    公开(公告)号:US09593576B2

    公开(公告)日:2017-03-14

    申请号:US14655599

    申请日:2013-11-25

    摘要: Methods and systems for monitoring, analyzing, and characterizing well bores and reservoir fluids in a subterranean formation are provided. In particular, methods and systems for determining and using correction coefficients for quantitative analysis of gas samples extracted from fluids at a well site based on Fick's laws of diffusion are provided. In one embodiment, the systems include: a gas trap configured to extract one or more gaseous samples from a fluid at a well site; a gas analyzer configured to receive one or more gaseous samples from the gas extraction system and generate data regarding the amount of one or more gas species in the gaseous sample; and an information handling system communicatively coupled to the gas analyzer that is configured to use data received from the gas analyzer to determine an extraction efficiency coefficient for the gas species.

    摘要翻译: 提供了用于监测,分析和表征地下地层井眼和储层流体的方法和系统。 特别地,提供了用于确定和使用基于Fick定律扩散从井场提取的气体样品进行定量分析的校正系数的方法和系统。 在一个实施例中,所述系统包括:气阱,被配置为从井位置的流体提取一种或多种气态样品; 气体分析器,被配置为从气体提取系统接收一个或多个气体样品并产生关于气态样品中一种或多种气体物质的量的数据; 以及通信地耦合到所述气体分析器的信息处理系统,其被配置为使用从所述气体分析器接收的数据来确定所述气体种类的提取效率系数。

    Method for determining the dew point of a vaporised hydrocarbon feedstock
    8.
    发明授权
    Method for determining the dew point of a vaporised hydrocarbon feedstock 有权
    测定蒸发的烃原料的露点的方法

    公开(公告)号:US09488608B2

    公开(公告)日:2016-11-08

    申请号:US14356834

    申请日:2012-11-13

    申请人: SHELL OIL COMPANY

    摘要: The invention provides a method for determining the dew point of a vaporized hydrocarbon feedstock, comprising heating a hydrocarbon feedstock and a hydrocarbon diluent to a first temperature and maintaining the feedstock and diluent at that temperature until all hydrocarbon feedstock is vaporized and a homogeneous mixture is obtained; passing a first flow of the mixture through a first zone maintained at a second temperature, which is lower than the first temperature; halting the first flow; passing a sweep gas through the first zone and providing the sweep gas to a detector for detecting hydrocarbons; decreasing the temperature of the first zone, wherein steps (c) to (f) are repeated at least until a hydrocarbon presence is detected in the sweep gas.The invention further provides a method for measuring the dew point of a steam cracker feed and a system for determining the dew point of a vaporized hydrocarbon feedstock.

    摘要翻译: 本发明还提供了一种用于测量蒸汽裂化器进料的露点和用于确定蒸发的烃原料的露点的系统的方法。

    Systems and methods for pressure differential molecular spectroscopy of compressible fluids
    9.
    发明授权
    Systems and methods for pressure differential molecular spectroscopy of compressible fluids 有权
    可压缩流体的压力差分谱法的系统和方法

    公开(公告)号:US09488570B2

    公开(公告)日:2016-11-08

    申请号:US14511842

    申请日:2014-10-10

    发明人: Vidi A. Saptari

    摘要: Described herein is a spectroscopic system and method for measuring and monitoring the chemical composition and/or impurity content of a sample or sample stream using absorption light spectroscopy. Specifically, in certain embodiments, this invention relates to the use of sample pressure variation to alter the magnitude of the absorption spectrum (e.g., wavelength-dependent signal) received for the sample, thereby obviating the need for a reference or ‘zero’ sample. Rather than use a reference or ‘zero’ sample, embodiments described herein obtain a spectrum/signal from a sample-containing cell at both a first pressure and a second (different) pressure.

    摘要翻译: 本文描述的是使用吸收光谱测量和监测样品或样品流的化学成分和/或杂质含量的光谱系统和方法。 具体来说,在某些实施方案中,本发明涉及使用样品压力变化来改变为样品接收的吸收光谱的幅度(例如,依赖于波长的信号),从而避免了对参考或“零”样品的需要。 不是使用参考或“零”样本,本文所述的实施例在第一压力和第二(不同)压力下都从含样品的电池获得光谱/信号。

    SPECTRAL ANALYSIS THROUGH MODEL SWITCHING
    10.
    发明申请
    SPECTRAL ANALYSIS THROUGH MODEL SWITCHING 审中-公开
    通过模型切换进行光谱分析

    公开(公告)号:US20160290919A1

    公开(公告)日:2016-10-06

    申请号:US15090189

    申请日:2016-04-04

    摘要: An improved method and system for analyzing multistate fluids using NIR spectroscopy. If the sample to be tested resides in a single state condition, the configuration file used in spectroscopic analysis will only be applied against a single model. However, if the sample to be tested is in a multi-state environment, an algorithm determines which model set of a plurality of model sets should be utilized based on the sample characteristics, and the configuration file used in spectroscopic analysis will be applied against the selected model. Results are generated showing the designated parameters.

    摘要翻译: 一种改进的使用NIR光谱分析多态流体的方法和系统。 如果要测试的样本处于单一状态,则光谱分析中使用的配置文件将仅适用于单个模型。 然而,如果要测试的样本处于多状态环境中,则算法基于样本特征确定应该使用多个模型集合的哪个模型集合,并且将在光谱分析中使用的配置文件应用于 选择型号。 生成显示指定参数的结果。