IWCF Level 3 DWC study plan
IWCF Level 3 DWC · Give each week a clear focus.
8 weeks · About 6 hours per week
Drilling Well Control
Define primary well control barrier and secondary well control barrier, and list which physical equipment serves each role on a typical rig
Explain how formation pressure, hydrostatic pressure, and bottom hole pressure relate, and calculate BHP from mud weight and true vertical depth in both SI and field units
Derive mud weight required to balance a stated pore pressure gradient, and state why overbalance margin is applied
Convert between pressure gradient, mud weight, and equivalent mud weight (EMW) for at least five worked examples
Your checkpoint
A one-page formula sheet plus 20 self-worked pressure and EMW calculations, all correct on second pass
Drilling Well Control
Identify the causes of kicks grouped as swabbing, lost circulation, insufficient mud weight, and abnormal pressure, and give a rig-floor trigger for each
Describe the sequence of events that produces a swab kick during a trip, including tripping speed, gel strength, and bottom hole pressure reduction
Explain kick tolerance and annular capacity concepts and why they limit how far a well can be drilled ahead
Distinguish shallow gas hazards from deeper kick scenarios and state the operational differences in response
Your checkpoint
A cause-and-effect table linking 10 kick causes to their warning signs and the first corrective action for each
Drilling Well Control
List positive kick indicators and interpret them against pit gain, flow rate, and pump pressure changes
Explain the difference between a positive indicator and a negative indicator of a kick and give three examples of each
Describe the correct first actions on detecting a kick while drilling, while tripping, and while static, and state why shutting in fast preserves influx size
Analyze how pit gain and shut-in drill pipe pressure behave in a gas influx versus a saltwater influx
Your checkpoint
A written kick-detection decision tree covering drilling, tripping, and static conditions, with the alarm threshold stated for each
Drilling Well Control
Explain the purpose of the soft shut-in and hard shut-in procedures and compare their advantages and risks
Describe how to record shut-in drill pipe pressure (SIDPP) and shut-in casing pressure (SCP) and what each reading tells you about influx and formation pressure
Calculate formation pressure from SIDPP and current mud weight, and calculate kill mud weight
Explain what a stabilized SIDPP confirms and what pressure behaviour suggests an influx is still migrating
Your checkpoint
A step-by-step shut-in checklist with the pressure readings to record and the kill mud weight calculation worked for three scenarios
Drilling Well Control
Describe the driller's method sequence and state which pressure is held constant on each circulation
Describe the wait and weight method and compare its pressure schedule with the driller's method
Explain initial circulating pressure, final circulating pressure, and the slow circulating rate pressure used to build the kill sheet
Calculate kill mud weight, initial circulating pressure, and final circulating pressure for a worked example
Your checkpoint
A completed kill sheet for one scenario, showing SIDPP, SCP, slow circulating pressure, kill mud weight, ICP, FCP, and the pressure step-down schedule
Drilling Well Control
Explain the behaviour of SIDPP and SCP when gas is allowed to migrate with the well shut in, and state the correct action
Describe the volumetric method for allowing gas to expand while holding casing pressure within limits
Explain why casing shoe pressure is the limiting constraint and how to check it against formation fracture pressure
Identify what happens to bottom hole pressure if gas is circulated out without allowing expansion
Your checkpoint
A migration and volumetric control worksheet with casing shoe pressure calculated and compared to fracture pressure for two scenarios
Drilling Well Control
Describe well control equipment functions: BOP stack arrangement, choke manifold, accumulator, and choke line, and state the purpose of each in a kill operation
Explain the function of the annular preventer versus the pipe rams and when each is used
Describe choke adjustments needed to hold casing pressure on the gauge while bringing the pump to kill rate
Explain the risks of a kick while tripping, including the use of a trip tank, and the actions to take
Your checkpoint
An equipment-and-actions summary covering the BOP stack, choke manifold, and accumulator, with the correct choke response described for three pressure scenarios
Drilling Well Control
Re-derive every key formula from memory: hydrostatic pressure, EMW, kill mud weight, ICP, FCP, and casing shoe pressure
Work through five timed mixed scenarios covering kick detection, shut-in, kill method selection, and migration control
Identify personal weak areas from the timed scenarios and close each gap with targeted re-study
State the standard well control actions and reporting sequence expected of a Level 3 candidate in a kick situation
Your checkpoint
A timed 90-minute mock assessment of 25 mixed calculation and procedure questions, scored with a written list of weak areas and the corrective study for each
Milestones
Week 2: Score at least 80 percent on a self-made 15-question quiz on pressures, gradients, EMW, and kick causes, with all calculation errors corrected
Week 4: Shut in a simulated well and record SIDPP and SCP correctly, then calculate kill mud weight without reference notes
Week 6: Complete a kill sheet and casing shoe pressure check within 30 minutes with no formula lookup
Week 8: Score at least 85 percent on the timed 90-minute mock assessment, with no repeated error type from earlier weeks