Drilling Engineering

  1. Well Control
    1. Fundamentals of Formation Pressure
      1. Hydrostatic Pressure
        1. Pressure Gradient Calculations
          1. Fluid Column Effects
          2. Formation Pressure Gradients
            1. Normal Pressure
              1. Abnormal Pressure
                1. Subnormal Pressure
                2. Pressure Detection Methods
                  1. Direct Indicators
                    1. Indirect Indicators
                  2. Causes of Kicks
                    1. Underbalanced Drilling
                      1. Insufficient Mud Weight
                        1. Formation Pressure Changes
                        2. Swabbing and Surging
                          1. Tripping Effects
                            1. Pipe Movement
                            2. Lost Circulation
                              1. Mud Loss Mechanisms
                                1. Pressure Reduction
                                2. Mud Cut by Gas
                                  1. Gas Influx Effects
                                    1. Density Reduction
                                  2. Kick Detection Methods
                                    1. Primary Indicators
                                      1. Pit Gain
                                        1. Increased Flow Rate
                                          1. Drilling Break
                                          2. Secondary Indicators
                                            1. Gas Cut Mud
                                              1. Chloride Increase
                                                1. Temperature Change
                                                2. Flow Check Procedures
                                                  1. Pump Shutdown
                                                    1. Flow Observation
                                                      1. Well Monitoring
                                                    2. Shut-in Procedures
                                                      1. Hard Shut-in
                                                        1. Immediate Closure
                                                          1. Pressure Buildup
                                                          2. Soft Shut-in
                                                            1. Controlled Closure
                                                              1. Choke Adjustment
                                                              2. Shut-in Pressure Recording
                                                                1. Drill Pipe Pressure
                                                                  1. Casing Pressure
                                                                    1. Pressure Stabilization
                                                                  2. Well Kill Methods
                                                                    1. Driller's Method
                                                                      1. Two-Circulation Method
                                                                        1. Procedure Steps
                                                                          1. Advantages and Limitations
                                                                          2. Wait and Weight Method
                                                                            1. Kill Mud Preparation
                                                                              1. Single Circulation
                                                                                1. Pressure Control
                                                                                2. Volumetric Method
                                                                                  1. Constant Bottom Hole Pressure
                                                                                    1. Volume Calculations
                                                                                      1. Lubricate and Bleed
                                                                                      2. Bullheading
                                                                                        1. Reverse Circulation
                                                                                          1. Formation Acceptance
                                                                                            1. Risk Considerations
                                                                                          2. Well Control Equipment
                                                                                            1. BOP Stack Components
                                                                                              1. Annular Preventers
                                                                                                1. Spherical Elements
                                                                                                  1. Closing Mechanisms
                                                                                                  2. Ram Preventers
                                                                                                    1. Pipe Ram Functions
                                                                                                      1. Blind Ram Applications
                                                                                                        1. Shear Ram Capabilities
                                                                                                      2. Choke and Kill Systems
                                                                                                        1. Manual Chokes
                                                                                                          1. Remote Chokes
                                                                                                            1. Choke Line Sizing
                                                                                                            2. Diverter Systems
                                                                                                              1. Shallow Gas Control
                                                                                                                1. Diverter Line Sizing
                                                                                                                2. Accumulator Systems
                                                                                                                  1. Pressure Requirements
                                                                                                                    1. Volume Calculations
                                                                                                                      1. Backup Systems
                                                                                                                    2. Well Control Calculations
                                                                                                                      1. Kill Mud Weight
                                                                                                                        1. Formation Pressure
                                                                                                                          1. Safety Margin
                                                                                                                          2. Circulating Pressures
                                                                                                                            1. Initial Circulating Pressure
                                                                                                                              1. Final Circulating Pressure
                                                                                                                              2. Pump Stroke Calculations
                                                                                                                                1. Annular Capacity
                                                                                                                                  1. Displacement Volumes