• a) Pulling speed.
  • b) Mud Properties, viscosity - Gel strength.
  • c) Profile of hole (Wellbore geometry).

4 1/2" if box - 6 5/8" reg pin.

  • Hyd mud to sea bed) - (Hyd sea water)
  • Frac g - Mud g) = (365 x 9.2 x .052) - (300 x .445)
  • 68 - .478)

10. False.

11. Mud Wt to give 200 psi overbalance

If the 200 psi is to overbalance formation pressure at 8500ft mud wt would be 9.6 ppg. This would overbalance the sands at 5000ft by 148 psi.

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