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CHIKYU TECHNOLOGY DEVELOPMENT

Turbine Driven Coring System (TDCS)

JAMSTEC is developing an improved, more effective, Turbine Driven Coring System (TDCS).
This novel wire-line retrievable coring system is designed to improve recovery in formations that are otherwise difficult to core, e.g., hard, fractured crystalline rock, interbedded hard/soft formations, or friable conglomerate and reef materials.
Since the TDCS applies less weight-on-bit and higher rotary speed to the core bit, core quality and recovery is enhanced. The core barrel can use mud as a drilling fluid.

TDCS

TDCS
    Objective:
  1. Higher rpm and less weight-on-bit to enhance core quality and recovery in hard rock formations.
  2. Use mud as drilling fluid to drive turbine.
  3. Wireline retrievable
Thruster Section Component Test (Piston Rod:2m)

Thruster Section Component Test (Piston Rod:2m)

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