Are you prepared in attending an interview? Are you worried for job interview preparation? Then do not worry, we’ve a right answer for your job interview preparation. If you are preparing for Derrickman job interview and don’t know how to crack interview and what level or difficulty of questions to be asked in job interviews then go through Wisdomjobs Derrickman interview questions and answers page to crack your job interview. Derrickman is a senior member of the drill crew and reports to the Driller. They need to handle the pipe during drilling and tripping operations and maintaining them. Below are the list of frequently asked Derrickman interview questions and answers which can make you feel comfortable to face the interviews:
Question 1. What Is The Function Of Mud?
Answer :
Answer :
Shale shaker: remove big cutting from mud (74 micron
Desander: remove sand from mud less than (74 -40micron working pressure (35-45) psi. capacity 500gpm/cone
Deselter : remove salt from mud less than (40 - 20 micron
Working pressure (35-45) psi. capacity 75 gpm/cone
Degasser : remove gases from mud.working pressure (35-45) psi
Mud cleaner : remove cutting from 20 micron to 7 micron
Capacity 75gpm/cone
Center fuger :remove cutting from mud less than 7 micron to 4
micron
Question 3. How Many Tanks You Have On Rig?
Answer :
shaker tank-suction tank-reserve tank-trip tank-intermidate tanke mixing tank
Question 4. What Is Function Of Trip Tank?
Answer :
It is used to check the well for losses or gain during tripping or wire line operation
Question 5. What Are The Steps To Check On Mud Pump?
Answer :
Question 6. What Difference Between Sweep And Spot
Answer :
Question 7. Why We Using Cooling System In Mud Pump?
Answer :
To cooling pistons ,liners ,seats
Question 8. When You Need To Change Valve In Pump?
Answer :
Having cracked valve or change seat
Question 9. When You Need To Change Piston In Pump?
Answer :
Having cracked piston or change liner
Question 10. What Are P.p.e Using While Mixing?
Answer :
Rubber shoes,rubber gloves,helmet,apron,control
Question 11. What Is Slug Mud?
Answer :
Heavy mud using berfore triping out to save mud and cleen pipes
Question 12. What Are The Steps To Cleen Mud Tanks?
Answer :
Question 13. What Time Of Greasing Crown?
Answer :
Every day
Question 14. How You Can Calculate Mud Tank Size?
Answer :
Lenth* width* height =…/5.614 =…. bbls
Question 15. What’s The Hydro-static Pressure?
Answer :
Ph is the pressure exerted by the weight of a liquid on its “container
Ph is the pressure exerted by the drilling fluid to offset the pressure exerted by the formation fluid
Ph (PSI) = 0.007 * TVD (ft) * Mud wt. (pcf)
Ph (PSI) = 0.052 * TVD (ft) * Mud wt. (ppg)
Sufficient hydrostatic pressure is required to prevent the borehole wall from caving in and to keep formation fluid from entering the wellbo
Question 16. What Is The Relationship Between The Water Losses And Filter Cake?
Answer :
Filter cake increase with water losses increase
Question 17. What Will Happen When Sand Found With Drilling Mud?
Answer :
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