The video below on the basics of oil and gas drilling and completion explains the essential steps taken to safely and effectively bring hydrocarbons to the surface. It begins with drilling and casing operations, where casing strings are inserted into the wellbore to protect aquifers and stabilize the formation. Cementing follows, sealing the casing in place and ensuring a secure barrier before drilling resumes to total depth (TD). Once the target pay zone is reached, logging tools are used to evaluate the formation and determine if it is economically viable.
The completion process prepares the well for production. This involves cementing, cement evaluation, and perforation, where explosive charges create pathways between the reservoir and the production tubing. Production strings with packers are then installed to control the flow of hydrocarbons. Finally, the wellhead—commonly called the “Christmas tree”—is fitted, allowing hydrocarbons to be safely produced and sent to storage or pipelines until the well reaches the end of its productive life.
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