Problem: ( E-2009/LKGN)Heavy Vibrations of Middle fluid end chamber in Mud pump-1 was observed. Informed to Drilling Shift in charge & DIC to plan for action. Drill string was pulled out upto shoe as the fluid end replacement takes more time. Requested Electrical i/c to put motor under repairs Tag.
Liner & Piston assy removed.Two broken studs at the bottom side of fluid end noticed. After removal of both suction and Discharge manifolds, Fluid retrieved with help of crane. With help of welder, tried to retrieve Broken studs, but no success. Another fluid end(NOV make,Fine threaded) available at site, New Brass adapter fitted, Replaced the same.
Major shutdowns could be averted with help of Fine threaded fluid end and High strength Stud bolts, which can with stand higher loads for long period.
What went well:
- Spare fluid end along with stud nut bolts availability(Thanks to Planning done by Area Manager & In charge Operations)
- High energetic FMP Team and Rig crew.
- Brass Adapter, check nut and other spares availabity.
Drilling operations resumed.
May be this article helpful for the people who are attending Rig Equipment Mechanical maintenance jobs.