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专利名称：Detecting Anomalies in Annular Materials of
Single and Dual Casing String Environments
发明人：Philip Teague,Alex Stewart申请号：US15903155申请日：20180223
公开号：US20180180765A1公开日：20180628
专利附图：
摘要：An x-ray based cement evaluation tool for measurement of the density ofmaterial volumes within single, dual and multiple-casing wellbore environments isprovided, the tool including at least an internal length -comprising a sonde section,
wherein said sonde section further comprises an x-ray source; a radiation shield forradiation measuring detectors; sonde-dependent electronics; and a plurality of tool logicelectronics and PSUs, wherein the tool uses x-rays to illuminate the formationsurrounding a borehole and a plurality of detectors are used to directly measure thedensity of the cement annuli and any variations in density within. Detectors used tomeasure casing standoff such that other detector responses are compensated for toolstand-off and centralization; a plurality of reference detectors is used to monitor theoutput of the x-ray source, and a shortest-axial offset detector is configured to distributeincoming photons into energy classifications such that photoelectric measurements maybe made.
申请人：Philip Teague,Alex Stewart
地址：Houston TX US,San Francisco CA US
国籍：US,US
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