Drilling Ahead In HPHT Formations

The intention of this procedure is to maintain full pressure control during drilling operations and have the bit as close as possible to bottom in case a kick should occur. At the same time have the kelly valve close to the rotary table in order to carry out jobs which require a tool joint near the rotary table, e.g. installation of high pressure circulation lines, wireline lubricator, etc.

The recommended procedure is:

  1. Make-up a kelly cock (15,000psi) to the single in the mouse-hole. The valve is to be in the open position.
  2. Make-up the single onto the top drive.
  3. Drill the single and break out above the kelly cock.
  4. Pick-up a new single with another kelly cock (15,000psi).
  5. Break out and lay down the kelly cock in the string.

Was this article helpful?

0 0
Trash To Cash

Trash To Cash

This book will surely change your life due to the fact that after reading this book and following through with the steps that are laid out for you in a clear and concise form you will be earning as much as several thousand extra dollars a month,  as you can see by the cover of the book we will be discussing how you can make cash for what is considered trash by many people, these are items that have value to many people that can be sold and help people who need these items most.

Get My Free Ebook

Post a comment