Unformatted text preview: til a tool
joint is above the rotary table.
b. Shut down the pumps.
c. Open the diverter line valve.
d. Close the diverter bag (annular preventer).
e. Start the pumps at a fast rate.
f. Notify the company personnel.
74 Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 37 C. Crew Member Responsibilities for
Driller (or Assistant Driller) 75 6. Obtaining and Interpreting
the Shut-In Pressures
A. Reading and Interpreting the Pressures.
a. Reading the pressure
b. Interpretation of the recorded pressures
c. Constant bottom hole pressure
d. Effect of time
f. Trapped pressure
g. Drill pipe floats
h. Kick identification
76 Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 38 B. Kill Mud Weight Calculations
K.W.M.= SIDPP×19.23/Depth + O.W.M.
Where SIDPP = Shut-in Drill Pipe Pressure,
19.23 = The reciprocal of .052
Depth= The true vertical depth of the bit,
O.W.M.= The original weight mud in the
77 Example Problem:
15,000 ft well, 8 ½” hole with...
View Full Document
This document was uploaded on 03/28/2014.
- Fall '14