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Petroleum drilling fundamentals Sigve Aspelund Hamilton
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Petroleum Drilling Fundamentals
Introduction to Rig types and Drill Component
Rig Selection and basic planning steps
Types of wells Types of rigsSteps to drill oil or gas wells The well construction team Well costingCommunications and safety
issues.
Basic pore pressure and fracture gradient estimation
Units and terminology and basic definitions Geo pressure and well design consideration Causes of overpressurePore pressure theoryReal time diagnostics of pore pressure Overburden gradient estimationFracture gradient estimation LOT analysisCasing seat selectionUncertainty analysis.
Designing the well Translating the geological prognosis into a well design Rig selection Types of drilling rigs – onshore and offshore Drilling equipment The rotary system – conventional, top drive, rotary steerable Automated rigs Contractor selection Casing and Cementing Drilling muds and completion fluids; types and functions Bits and specialised drilling equipment Formation and well evaluation requirements: Mud logging Wireline and MWD/LWD logging Case Study: Casing design including uncertainties in
pressure and rock strength Case Study: Identification of potential drilling hazards
Drilling the wellMonitoring progress in drilling operations The daily drilling report – what does it contain
and how do you read it? Well control issues – why the drilling foreman
needs a certificate: Mud control and testing Casing and cementing operations Things that can go wrong Stuck pipeOverpressuresLost circulationKicks
Completing the wellTypes of completions – what is their
function? Completion fluids – why are they
different from drilling fluids? Basic completion string equipment
and Xmas trees Sand control equipment – from
screens to gravel packs Perforation technology – equipment
and safety aspects
New technology & ideas“Drilling the limit” how to
improve and save money Expandable tubulars Multi-lateral wells Smart wells (Intelligent
completions)