13Kick Warnings - Tripping Improper hole fillDO NOT WAIT FOR PIT GAIN OR FOR THE WELL TO FLOWWhat should you do if the well is not taking the proper fill on a trip?
14Shut In Procedures - Drilling Soft Shut InPick up the kelly until the tool joint clears the floor.Shut down the pumps.Check for flow.If flowing, open the HCR valve.Close BOP.Close choke.Hard Shut InPick up the kelly until the tool joint clears the floor.Shut down the pumps.Check for flow.If flowing, Close BOP.Open HCR valve.Close choke.
15Shut In Procedures - Drilling Soft Shut InNotify supervisorsRead & record SIDPP, SICP, Pit Gain, Time, DatePrepare to implement kill.Hard Shut InNotify supervisorsRead & record SIDPP, SICP, Pit Gain, Time, DatePrepare to implement kill.
16Shut In Procedures - Tripping 1. Set slips below top tool joint2. Stab a full opening safety valve and close it.3. Open the HCR and close the BOP, and choke4. Pick up and stab the kelly or a pump-in line
17Shut In Procedures - Tripping 5. Open the safety valve.6. Notify the supervisors.7. Read and record SIDPP, SICP, Pit gain, TVD of Well, TVD of bit, time, and date.8. Prepare to implement kill.
18Shut In Procedures - Diverters With diverters in use (prior to setting surface casing)DO NOT SHUT IN WELL - DIVERT.
19Shut In Procedures - Casing 1. Lower casing until a swage and valve can be stabbed.2. Close the casing rams or annular preventer.3. Stab the swage and valve.4. Notify supervisor5. Read and record pressures6. Prepare to kill well
25Wait & Weight Method When well is full of KWM, Shut in well Check for remaining pressuresIf surface pressures are zero, check for flow by cracking chokeIf no flow, carefully open BOP’sCirculate around again
26Wait & Weight - Advantages Kill well in one circulationLeast amount of maximum casing pressures
27Driller’s MethodShut in well long enough to measured stabilized SI pressuresCirculate kick fluids from wellbore with original weight mud maintaining ICP on drillpipeWhen kick fluids are circulated out, shut in well
28Driller’s Method Weight up mud to KWM Circulate KWM to bit following pressure decline scheduleContinue circulating KWM around maintaining FCP until KWM reaches surfaceShut well in, check for pressures, flow etc.
30Driller’s Method - Advantages Short shut in timesEasy
31Circulate & WeightShut in long enough to measure stabilized SI pressuresBegin circulating kick from wellbore with OWM at ICPWhile circulating, isolate one pit and begin to weight up to KWMWhen mud is weighted up, switch pump suction to weighted pit, and follow W&W
32Circulate & Weight - Advantages Best of W&W and Driller’s
33Concurrent method Weight up and circulate in increments Takes one complete circulation for each increment
34Reverse CirculationCirculate down annulus and up the drillpipe or tubing.Used extensively in workovers and completions
35Dynamic Kill For blowout control For shallow gas Use high pump speeds and viscosities to generate high annular friction pressuresAnnular friction used instead of surface chokeFor shallow gasCirculate as fast as rig pumps will allow through divertersDO NOT HOLD ANY BACK PRESSURE
36BullheadingPump kill fluid down wellbore, usually at relatively high speeds to force formation fluids back into formationUsed predominantly in:Workover and completion operationsAustin Chalk flow drillingWhen danger of H2S
37Lubricate & Bleed Only applicable with gas at the surface Pump in KWM into wellboreLet KWM fall for some timeBleed off gasRepeat
38Volumetric MethodUsed when circulation is not possible or when gas is migrating in closed in wellAs surface pressures increase due to gas migration, bleed off excessive pressure and allow bubble to expand.Continue until circulation can be resumed or until gas reaches surface
39Use of Kill Sheet Pre-recorded information SPP Pump output Drillstring capacityAnnular capacityPressure limitationsCirculation timesNumber of strokes
40Use of Kill SheetPost kick informationSIDPPSICPPit gainTimeDate