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Posted on: 25 Mar 2010, 08:01 AM
  • hendo
  • Directional Drilling Coordinator
  • hendo's avatar
  • Organisation: Halliburton
  • Total posts: 96
  • Join date: Feb 2008
Folks of the community.

When designing and engineering wells for underbalnced drilling, what are the changes that need to be made to the Torque and Drag models to make them more realistic? (I think most torque and drag software is designed with overbalance and mud in mind).
Surely the lack of dampening and different bouyancy effects must be taken into account somehow..???
Chris Henderson
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  1. Running Casing underbalanced

  2. Maximum Torque for 13.3/8" Buttress

  3. (Surface installed) soft torque systems

  4. Conn torque and dope preference in H2S wells.

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