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    • 6. 发明公开
    • Rotating downhole logging tool with reduced torque
    • Rotierende Tiefbohrlochsonde mit reduziertem Drehmoment
    • EP2952674A1
    • 2015-12-09
    • EP14290161.0
    • 2014-06-04
    • Services Petroliers SchlumbergerSchlumberger Holdings LimitedSchlumberger Technology B.V.
    • Mouget, PierreDenoix, HenriParry, Andrew
    • E21B47/00E21B47/01E21B21/00
    • E21B47/00E21B21/00E21B47/01
    • Systems and methods for reducing torque on a rotating downhole logging tool are provided. In one embodiment, a downhole logging tool is provided. The downhole logging tool (200) may include a support element (202), which may include a hollow cavity (226). The support element may be configured to rotate about an axis(214) when the support element is inserted in a well, and the hollow cavity may be configured to permit fluid flow through the support element when the support element is in the well. Furthermore, the downhole logging tool may include a first fairing portion (212A), which may include a first sensor (210A) to obtain measurements in the well. Additionally, the first fairing portion may be configured to form a revolution surface associated with a portion of the support element to reduce fluidic resistance of the rotating support element.
    • 提供了用于减小旋转井下测井工具上的扭矩的系统和方法。 在一个实施例中,提供井下测井工具。 井下测井工具(200)可以包括支撑元件(202),其可以包括中空腔(226)。 支撑元件可以被配置为当支撑元件插入井中时围绕轴线(214)旋转,并且当支撑元件位于井中时,中空空腔可构造成允许流体流过支撑元件。 此外,井下测井工具可以包括第一整流罩部分(212A),其可以包括在井中获得测量的第一传感器(210A)。 此外,第一整流罩部分可以构造成形成与支撑元件的一部分相关联的旋转表面,以减少旋转支撑元件的流体阻力。
    • 8. 发明公开
    • System and method for measuring free and dissolved gasses in drilling fluids
    • 测量钻井液中游离和溶解气体的系统和方法
    • EP2930511A1
    • 2015-10-14
    • EP14305532.5
    • 2014-04-10
    • Geoservices Equipements
    • Kasprzykowski, PawelBreviere, Jerome
    • G01N33/28
    • G01N33/2823
    • A method is disclosed and performed by collecting, by a volumetric sampler (50), a known volume of a sample from drilling fluid (28) exiting a well bore (12) penetrating a formation (14), the sample having a free gas and a dissolved gas. A first quantity of the free gas entrained in the sample is measured by a free gas detection system (52). The sample is transferred to a dissolved gas detection system (54) after the free gas in the sample is measured. The method is further performed by measuring a second quantity of the dissolved gas in the sample by the dissolved gas detection system. A total amount of one or more certain type of gas in a formation is estimated based on the first and second quantities.
    • 公开了一种方法,其通过体积取样器(50)从钻出流体(28)的钻井液(28)中收集已知体积的样品,所述钻井液离开穿过地层(14)的井筒(12),所述样品具有游离气体, 一种溶解气体。 夹带在样品中的第一数量的游离气体由游离气体检测系统(52)测量。 在样品中游离气体被测量之后,将样品转移到溶解气体检测系统(54)。 该方法进一步通过溶解气体检测系统测量样品中溶解气体的第二数量来进行。 基于第一和第二量来估计地层中的一种或多种特定类型的气体的总量。
    • 10. 发明公开
    • Systems and Methods for Data Driven Parametric Correction of Acoustic Cement Evaluation Data
    • 系统和Verfahren zur datengesteuerten parametrischen Korrektur akustischer Zementbeurteilungsdaten
    • EP2803815A1
    • 2014-11-19
    • EP13305629.1
    • 2013-05-16
    • Services Pétroliers SchlumbergerSCHLUMBERGER TECHNOLOGY B.V.Schlumberger Holdings Limited
    • Van Kuijk, RobertKalyanaraman, Ram Sunder
    • E21B47/00
    • Systems, methods, and devices for evaluating proper cement installation in a well are provided. In one example, a method includes receiving acoustic cement evaluation data parameterized using a first parameterization. A subset of the acoustic cement evaluation data is compared to expected nominal values of the acoustic cement evaluation data. When the subset of the acoustic cement evaluation data does not substantially conform to the expected nominal values of the acoustic cement evaluation data, all or part of the acoustic cement evaluation data is corrected to cause the subset of the acoustic cement evaluation data to more closely match the expected nominal values of the acoustic cement evaluation data. The corrected acoustic cement evaluation data may be used to estimate a presence of solids, liquids, and/or gases behind the casing.
    • 提供了用于评估井中适当水泥安装的系统,方法和设备。 在一个示例中,一种方法包括接收使用第一参数化参数化的声学胶结评估数据。 将声学水泥评估数据的一个子集与声学水泥评估数据的预期标称值进行比较。 当声学水泥评估数据的子集基本上不符合声学水泥评估数据的预期名义值时,校正全部或部分声学水泥评估数据,以使声学水泥评价数据的子集更加匹配 声学水泥评估数据的预期名义值。 校正的声学水泥评估数据可以用于估计套管后面的固体,液体和/或气体的存在。