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CHIKYU TECHNOLOGY DEVELOPMENT

Measurement While Coring (MWC) and Logging While Coring (LWC) Systems

The Measurement-while-Coring (MWC) / Logging-while-Coring (LWC) systems, as part of the rotary core barrel (RCB), enable drilling information, which includes measurements of the directional survey (inclination/ Azimuth), tool face, borehole pressure, temperature, natural gamma-ray and resistivity of the formations, to be monitored and transmitted to the surface.
That is, "Real-Time Data" is retrieved while coring the borehole and the data is used to adjust drilling direction and to keep it vertical.
Combined with the downhole motor (1-1-4), these systems enable more precise directional control in drilling the borehole.

MWC/LWC Systems

MWC/LWC Systems
    Objective:
  1. Directional coring control by monitoring inclination, azimuth, tool face, etc.
  2. Logging the formation properties such as natural gamma-ray, resistivity, sonic data, etc.
  3. Real-time Data transmitting systems development
  4. Monitoring of additional downhole information such as temperature and pressure
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