• OpenAccess
  • Design of Tubular Azimuth Gamma Ray Logging Tool  [CET 2016]
  • DOI: 10.4236/wjet.2016.43D001   PP.1 - 8
  • Author(s)
  • Jing Yang
  • On the Gamma ray reception study, this paper presents the heavy metal shielding method, which is using C type heavy metal to shield Sodium iodide scintillation crystal. By rotating the drilling tools to scan and detect the gamma ray which are around the borehole wall formation, On study of angle measurement study, base on accelerometers and fluxgate sensors to design the algorithm which can confirm the detecting instrument measurement window position; Moreover, the paper also presents the Rock formation identification method, which is using changing tendency and sequencing of high side and low side gamma to decide the position of the drilling tool. Field experiments showed that the tool can effectively identify the reservoir and rock formation.
  • Azimuth Gamma Ray Logging Tool, Heavy Metal Shielding, Dynamic
  • References
  • [1]
    Sinopec Shengli Petroleum Administrative Bureau Drilling Technology Research Institute (1997) Inclination and Azimuth Gamma MWD Instrument. China Patent: 200510043226.4.
    Lin, Z.Q., Hao, Y.L. and Zhang, G.L. (2008) Apply the Azimuth Gamma LWD for the Horizontal Well Orientation in Jidong Oilfield. Mud Logging Engineering.
    Wu, Z.H. (2011) New Technology about Geological Orien-tation of Near-Drill Bit Azimuth Gamma Ray Imaging Tool in the Thin Reservoir. Well Logging Technology.
    Tang, Y. (2012) Azimuth Gamma of MWD Optimization of Shale Oil and Gas Detection. Well Logging Technology.

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