Case Studies
Abnormal formation pressure due to offset water injection wells - IOGP
Higher than predicted pore pressure during completion operations- IOGP
Improper mud treatment resulted in a Well Control incident - IOGP
Influx during MPD operations - IOGP
Wellbore flow observed during fishing of completion tubing string - IOGP
Kick while drilling underbalanced with poorly isolated tight formation behind casing - IOGP
Gas influx due to lost returns during 7” casing running - IOGP
Well Control Incidents whilst drilling a sensitive section on MPD mode - IOGP
Circulation of gas through a Mud Gas Separator, beyond its capacity - IOGP
e-Learning Resources
U-Tube Drilling Concept: Explains the concept of U-Tube and provides the basic understanding as it affects the well control principles.
Overburden, Pore Pressure, and Fracture Gradient- Develop a clear understanding of concepts of porosity, overburden, formation, and fracture pressures. Also includes fracture gradient models, mitigating lost returns along with a preliminary discussion on casing seat selection and design factors.
Understanding MAASP: MAASP or Maximum Allowable Annular Surface Pressure is an important parameter while killing the well.
Hard Shut-in: Hard shut-in is a procedure for closing a well in preparation for well killing.
Drillers Method (First Circulation): Drillers method of well control is a two circulation method. Let's learn concepts and pressure variations in the first circulation.
Well Control Quizzes: Master Well Control Preparation with Interactive Quizzes
Data Sheets and Calculation Tools