Free Practice Questions for IWCF Level 1

Oil and Gas Overview

How hydrocarbons form, migrate and become trapped in a reservoir; the upstream exploration and production industry; key roles on a well team; and core terminology such as reservoir, formation, porosity and permeability that underpins later well control concepts.

Life Cycle of a Well

The stages of a well from exploration and drilling through casing and completion, production, workover or intervention, and finally plug and abandonment, with the well control considerations and barriers that apply at each phase.

Drilling Rigs and Equipment

Land and offshore rig types, the major rig systems including hoisting, rotating and circulating systems, the role of drilling fluid (mud), and the blowout preventer (BOP) stack and other equipment that act as well barriers.

Well Control During Drilling

Hydrostatic pressure and formation pressure, the difference between primary and secondary well control, the causes and early warning signs of a kick, the role of the driller in detecting an influx, and the basic principle of shutting in and circulating out a kick.

Well Intervention and Workover

Why wells are re-entered after completion, the main intervention methods including wireline, coiled tubing, snubbing and workover, and the barrier philosophy used to keep a live well under control during these operations.

Pressure Control During Intervention

Pressure control equipment used during intervention, well barrier elements and barrier envelopes, monitoring of pressures and returns, and safe-practice principles for keeping a well controlled while working on it.