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    • 10. 发明授权
    • Segmented tubular body
    • 分段管体
    • US07897915B2
    • 2011-03-01
    • US12339758
    • 2008-12-19
    • David R. HallPaula TurnerScott WoolstonNathan Nelson
    • David R. HallPaula TurnerScott WoolstonNathan Nelson
    • G01V5/10
    • G01V5/10
    • In one aspect of the invention, a downhole tool string component comprises a tubular body with a first and a second tool joint adapted to connect to adjacent tool string components, and a central bore adapted to pass drilling mud between the joints. A sleeve circumferentially disposed about an outer surface of the tubular body. The sleeve is rigidly attached to the outer surface at first and second sleeve ends and forming at least three stabilizer blades. A nuclear source and at least one nuclear detector are disposed within a gap formed between the inner surface of the sleeve and the outer surface of the tubular body.
    • 在本发明的一个方面,井下工具串组件包括具有适于连接到相邻工具组件的第一和第二工具接头以及适于在接头之间通过钻井泥浆的中心孔的管状体。 围绕管状体的外表面周向设置的套筒。 套筒在第一和第二套筒端部处刚性地附接到外表面并且形成至少三个稳定器叶片。 核源和至少一个核检测器设置在形成在套管的内表面和管状体的外表面之间的间隙内。