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    • 9. 发明申请
    • DOWNHOLE DETERMINATION OF ASPHALTENE CONTENT
    • ASPHALTENE内容的深层确定
    • US20100229623A1
    • 2010-09-16
    • US12401813
    • 2009-03-11
    • Carlos AbadAnthony R.H. GoodwinBruno Drochon
    • Carlos AbadAnthony R.H. GoodwinBruno Drochon
    • E21B47/00
    • E21B49/08E21B43/16
    • A system and method for determining the asphaltene content of a downhole oil sample are provided. In one example, the method includes obtaining a hydrocarbon sample from a hydrocarbon formation of a reservoir at a given depth using a downhole tool. A liquid phase of the hydrocarbon sample is isolated within the downhole tool and the liquid phase is subjected to downhole analysis within the downhole tool to create a chromatography sample. The downhole analysis is based at least partially on size exclusion chromatography. A first property of the chromatography sample is measured to obtain a measured value, and a second property of the chromatography sample is estimated based on the measured value and known calibration curves.
    • 提供了一种用于确定井下油样品的沥青质含量的系统和方法。 在一个实例中,该方法包括使用井下工具从给定深度的储层的烃层中获得烃样品。 在井下工具内分离烃样品的液相,并在井下工具内对液相进行井下分析以产生色谱样品。 井下分析至少部分地基于尺寸排阻层析。 测量层析样品的第一性能以获得测量值,并且基于测量值和已知校准曲线来估计色谱样品的第二性质。