Sampling of hydrocarbons from geological formations
    64.
    发明授权
    Sampling of hydrocarbons from geological formations 有权
    从地质构造中抽取碳氢化合物

    公开(公告)号:US07094736B2

    公开(公告)日:2006-08-22

    申请号:US10451856

    申请日:2002-02-01

    CPC分类号: G01N33/2823 E21B21/068

    摘要: A method of separating from a mixture of oil-based drilling fluid and sample of formation hydrocarbon, the liquid component of the drilling fluid, which method comprises treating, e.g. chemically, the mixture in a way that selectively substantially affects the liquid component of the drilling fluid, producing one or more treatment products, while leaving the formation hydrocarbon substantially unaffected; and separating the treatment products from the formation hydrocarbon, by solvent extraction. The liquid component of the drilling fluid conveniently comprises one or more esters (which do not occur in significant quantities in naturally occuring formation hydrocarbons) and which can be hydrolysed to give water-soluble products readily removable from the formation hydrocarbon. The invention is applicable to sampling of formation hydrocarbon using wireline formation testers or sampling tools.

    摘要翻译: 一种从油基钻井液和地层烃样品,钻井液的液体组分的混合物中分离出来的方法,该方法包括如下步骤: 化学地,混合物以选择性地基本上影响钻井液的液体组分的方式产生一种或多种处理产物,同时使地层烃基本上不受影响; 并通过溶剂萃取将处理产物与地层烃分离。 钻井液的液体组分方便地包括一种或多种酯(其在天然存在的形成烃中不会显着地发生),并且可以被水解以得到容易从地层烃中除去的水溶性产物。 本发明适用于使用有线地层测试仪或采样工具对地层烃进行采样。