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首页> 外文会议>SPE annual technical conference and exhibition;SPE 2002 >An Integrated Caliper from Neutron, Density, and Ultrasonic Azimuthal LWD Data
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An Integrated Caliper from Neutron, Density, and Ultrasonic Azimuthal LWD Data

机译：来自中子，密度和超声波方位角LWD数据的集成卡尺

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摘要

Accurate logging-while-drilling (LWD) borehole caliper datarnare important for drilling, logging and well completion. Arnsingle, accurate LWD caliper can greatly minimize risk andrnimprove quality by bringing critical new information tornthese applications.rnPresently, an LWD azimuthal density porosity tool canrnprovide three different hole-size measurements. In addition tornan ultrasonic caliper, a neutron-derived and a density-derivedrncaliper have been recently introduced. Each method hasrndifferent advantages and limitations that are related to thernphysics of the measurement and environmental conditions.rnThis paper provides an overview of the ultrasonic caliper, thernnew neutron- and density-derived calipers and also describesrnthe applicability range of each measurement. A method is alsornproposed to integrate the different techniques in order to formrna single, robust and accurate LWD caliper. Examples of thernindividual and integrated calipers from an azimuthal densityrnporosity tool are presented.
机译：准确的随钻测井（LWD）井径卡尺数据对于钻井，测井和完井至关重要。通过将关键的新信息引入这些应用程序，准确的随钻测井卡尺可以极大地降低风险，并改善质量。随便使用随钻测井方位角孔隙度工具可以提供三种不同的孔尺寸测量结果。除了超声波卡尺外，最近还引入了中子源和密度源卡尺。每种方法都具有与测量的物理性质和环境条件有关的不同优点和局限性。本文概述了超声卡尺，新型中子和密度卡尺，并描述了每种测量的适用范围。还提出了一种整合不同技术的方法，以形成单个，坚固且准确的随钻测井卡尺。提供了来自方位角密度孔隙度工具的单个和集成卡尺的示例。

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