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    • 3. 发明申请
    • SYSTEM AND METHOD FOR EVALUATION OF STRUCTURE-BORN SOUND
    • 用于评估结构声波的系统和方法
    • WO2010019863A3
    • 2010-05-27
    • PCT/US2009053859
    • 2009-08-14
    • BAKER HUGHES INCORPORATTEDKRUEGER SVENHUMMES OLOFGARVEY DUSTIN
    • KRUEGER SVENHUMMES OLOFGARVEY DUSTIN
    • E21B47/00E21B47/12G01V1/40
    • E21B49/003G01V1/46
    • A system for evaluation of conditions in a borehole in an earth formation includes: a downhole tool configured to be disposed in the borehole, the downhole tool forming a portion of a drillstring; at least one sensor associated with the downhole tool for recording sound generated in the borehole by the downhole tool and generating data representative of the recorded sound, the recorded sound having a frequency selected from at least one of an audible frequency, a near audible frequency and an ultrasonic frequency; and a processor in operable communication with the at least one sensor, the processor configured to receive the sound data and identify at least one downhole condition selected from at least one of i) a drilling condition, ii) a characteristic of the earth formation and iii) an integrity of the downhole tool, by comparing the recorded sound data to exemplary data patterns.
    • 用于评估地层钻孔中的状况的系统包括:井下工具,其构造成设置在钻孔中,所述井下工具形成钻柱的一部分; 与所述井下工具相关联的至少一个传感器,用于记录由所述井下工具在井眼中产生的声音并产生表示所述记录声音的数据,所述记录声音具有选自下列中的至少一个的频率:听觉频率,接近可听频率和 超声频率 以及处理器,其与所述至少一个传感器可操作地通信,所述处理器被配置为接收所述声音数据并且识别从以下至少一个中选择的至少一个井下状况:i)钻井条件,ii)地层的特征和iii )井下工具的完整性,通过将记录的声音数据与示例性数据模式相比较。