IWCF Level 2 Drilling study plan

Define primary well control, kick, influx, and blowout in your own words and distinguish a kick from a simple loss of hydrostatic overbalance.

List the primary barrier envelope for an onshore and an offshore well and identify at least three failure paths that lead to an influx.

Calculate formation pressure from mud weight and true vertical depth, and convert between pressure gradient (psi/ft), mud weight (ppg), and equivalent mud weight (EMW).

Explain the difference between pore pressure, fracture pressure, and overburden gradient and sketch them on a depth plot from memory.

Describe the sequence of events during a kick: underbalance, influx entry, shut-in, and pressure stabilisation, and state what each pressure gauge should read at each stage.

Calculate slow circulating rate (SCR) pressures and explain why they are taken at a low pump rate.

Compute kill mud weight from shut-in drill pipe pressure (SIDPP) and true vertical depth, and verify the result against the fracture gradient.

Explain the U-tube model and use it to predict shut-in casing pressure from shut-in drill pipe pressure plus influx hydrostatic.

Compare the driller's method and the wait-and-weight method step by step, including when each is preferred and what stays constant in each.

Trace the pressure schedule for both methods and identify where bottomhole pressure is held constant and where it is not.

Calculate the kill-mud displacement schedule and state the pressure to hold at each stage (start of kill, kill mud at bit, kill mud at surface).

Identify at least four warning signs of a kick (flow check, pit gain, pump pressure change, gas cut mud) and rank their reliability.

Explain the function of the BOP stack components: annular preventer, pipe rams, blind/shear rams, choke manifold, and choke and kill lines.

Describe a function test and a pressure test of the BOP stack and state typical test pressures and acceptance criteria relative to rated working pressure.

Explain the purpose of the accumulator and state the minimum usable volume and response-time requirement for closing and opening.

Walk through the correct shut-in procedure for a floating and a land rig and identify the common procedural errors that mask a kick.

Complete a timed set of 20 mixed well-control calculations (EMW, MAASP, kill weight, SCR, lag) with at least 90 percent accuracy.

Explain MAASP and how it changes after a kill mud weight increase, and calculate the new MAASP.

Define the scope of well intervention pressure control: wireline, coiled tubing, and snubbing operations and how each maintains a barrier.

Identify the pressure control equipment for wireline: grease injection head, lubricator, stuffing box, and BOP, and state the function of each.

Describe the two-barrier philosophy for well intervention and list the primary and secondary barriers for a wireline operation.

Explain lubricator and riser pressure ratings and how to calculate the maximum allowable surface pressure for a given intervention.

Describe how to calculate and control wireline tension, including the weight indicator reading and the effect of buoyancy.

Explain the procedures for pressure testing intervention equipment and the acceptance criteria for a successful test.

Explain coiled tubing pressure control: stripper, BOP stack, and the role of the circulating system in maintaining balance.

Describe snubbing operations and how the snubbing unit holds pressure while running pipe in or out of a live well.

Explain the hazard of gas migration in a shut-in well during intervention and describe at least two mitigation methods.

Describe emergency procedures for loss of primary barrier during wireline and coiled tubing operations, including shear and disconnect sequences.

Complete a full-length timed mock exam covering both domains and score it against the pass threshold you have set.

Review every missed question and map it to the underlying concept, not the wording of the question.

Re-derive the ten most-used formulas from memory without notes.

State the key differences and shared principles between drilling well control and intervention pressure control in a short written summary.