Description

Well life cycle starting from drilling to abandonment including the following stages: 1. Seismic and drilling: introduction. Oil well definition. Well life cycle stages. 3D seismic. IWCF principles, calculations, and exams. Drilling rigs and rig types. Well types. 2. Completion: Completion principle and completion design criteria. Completion objectives. Classification of completion. Completion types for oil producers and water injectors. Completion types for artificial lift. Typical permanent completion Completion components: tubing hanger, SCSSSV, production string, production packer and packer types, landing nipples (no-go landing nipple, selective landing nipple, safety valves landing nipple) Circulation devices: SSD and SPM, Flow coupling and blast joint, Polished bore receptacle PBR, Wireline entry guide WLEG, Xmas tree components and types. 3. Production stage: Classification of wells as per production method Gas lift system and design, Gas lift valve types, Well intervention definition types Wireline types: slickline – braidedline – E-line and application for each type. The standard wireline tool string Operations that can be carried out using wireline Fishing operations, Coiled tubing technology, Operations that can be performed using coiled tubing: Cement plug, Nitrogen kick-off, CT conveyed perforation, Open and close SSD in horizontal wells, Well stimulation: acidizing – matrix acidizing – fracture acidizing, Hydraulic fracturing: stages, Scale and sand cleanout, Milling, Fishing 4. Maintenance: Pumping using CT, Pumping applications, Wellhead maintenance, Workover, Well logging, Logging types: open hole logs – cased hole logs, Oil production phase: primary – secondary – tertiary, Problems that can occur in the well: paraffin wax – asphaltenes – gas hydrates – scale 5. Abandonment: procedures