158 JT920/JT920L - APPENDIX
C. DRILLING FLUID REQUIREMENTS
158 JT920/JT920L - APPENDIX
C. DRILLING FLUID REQUIREMENTS
C. DRILLING FLUID REQUIREMENTS
Backreaming is only successful when enough fluid reaches the
bore. The amount of fluid needed depends on sizes of bore,
pullback material, and nozzles.
The chart on the next page can be used to determine the
minimum amount of fluid needed in perfect conditions. Use
more than amount indicated or bore might be dry and
unsuccessful.
C. DRILLING FLUID REQUIREMENTS
Backreaming is only successful when enough fluid reaches the
bore. The amount of fluid needed depends on sizes of bore,
pullback material, and nozzles.
The chart on the next page can be used to determine the
minimum amount of fluid needed in perfect conditions. Use
more than amount indicated or bore might be dry and
unsuccessful.
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