About Course
The course is designed for drilling operational staff and drilling engineers, with the objective to determine subsurface wellbore pressures during drilling operations under static and dynamic conditions.
Course Outline
-
Introduction to Oil & Gas Drilling
- Oil and gas development
- Formations, rock pressure, fluid traps
- Fundamentals of petroleum
- Basic geology
- Drilling hydraulics
-
Drilling fluid properties
- Density
- Compressibility of fluids
- properties of gases
- Z-Factor
- Hydrostatic pressure
- Annular pressure in complex fluid columns
-
Fluid Mechanics
- Free body diagram
- Buoyancy
- Forces and stresses in submerged tubular
-
Well Control
- Identification of a kick
- Shut-in pressures
- Kill mud weight calculations
- Annular pressure during well control
- Strength of casing shoe and maximum allowable annular pressure
- Exercise
-
Formation Pressure
- Pre-pressure development
- Porosity and permeability
- Pore pressure measurements
- Fluid pressure gradient and mud weight requirements
- Fluid level in annulus after loss circulation
- Exercises
-
Prediction of Fracture Gradient
- Definition
- Estimate fracture gradient from correlations
- Measurement of fracture gradient – Leak of Test (LOT)
- LOT data Analysis
- Exercises
-
Basic Laws of Fluid Flow
- Introduction
- Conservation of mass
- Velocity equation
- Energy and pressure balance equations
- Hydraulic calculations
- Pressure drop through bit nozzles
-
Rheological Models
- Introduction
- Calculation of frictional pressure losses
- Newtonian model
- Bingham Plastic model
- Power-Law model
- Flow regimes, laminar and turbulent
- Frictional pressure loss equations
- Exercises
-
Bit Hydraulics
- Introduction
- Bit nozzle size design
- Optimization of bit hydraulics
- Bit hydraulic horsepower
- Jet impact force
- Exercise
-
Hole Cleaning in Vertical Wells
- Introduction
- Particle slip velocity
- Cutting transport ratio
- Factors affecting hole cleaning
- Empirical correlations
- Exercise
-
Hole Cleaning in Directional Wells
- Same rules don’t apply
- Cutting transport in directional wells
- Difficulties in hole cleaning at different angles
- Factors affecting hole cleaning in directional wells
- Flow rate requirements for hole cleaning in different hole conditions
- Exercises
-
Swab and Surge
- Definitions
- Burkhardt method
- Mitchell method
- Recommended speeds for running in hole and pulling out of hole
- Exercises
Class Schedule
Dr. Qamar Sharif
Oil and Gas Industry Executive
PROFESSIONAL EXPERIENCE:
Dr. Qamar J Sharif is Ex-Chairman of the Board of Directors for Oil and Gas Development Company Limited (OGDCL), Pakistan. He has more than 35 years of experience in the oil and gas industry. He assumed multiple senior roles at Shell International Exploration and Production, Inc., Houston and Saudi Aramco, Dhahran.
Dr. Qamar’s expertise includes corporate governance, transformation, new joint ventures, drilling operations and engineering, applied research, development of innovative solutions and implementations.
OIL AND GAS TRAINING EXPERIENCE:
Dr Sharif conducted various training courses at Upstream Professional Development Center, Saudi Aramco and taught graduate courses at King Fahd University of Petroleum and Minerals as a visiting faculty.
He served as Curriculum Advisor for Well Construction discipline at Petro Skills representing Saudi Aramco. He served as Vice Chair-technical programs for SPE-Saudi Arabia chapter.
Various geographies where he offered training courses include Australia, Singapore, Kuala Lumpur, Cambodia, Dubai, Saudi Arabia, London, New Orleans, Houston, and Mexico.
EDUCATION:
- B.Sc. Mining Engineering, University of Engineering & Technology, Lahore, Pakistan
- M. Sc. Petroleum Engineering, Texas A&M University, College Station, TX, USA
- Ph.D. Petroleum Engineering, Texas A&M University, College Station, TX USA
PUBLICATIONS:
- Fiber Glass Lined Tubular as completion string for corrosion protection
- Application of Drilling-with-Casing (DwC) Technology
- Meeting Economic Challenges of Deepwater Drilling with Expandable Tubular Technology
- Strategic Cost Leadership – reduction of completion time by more than a hundred percent
- Probability of getting stuck while drilling and the likelihood of getting free, if stuck
- Unconventional Methods for managing Shallow Water Flow by Conductor Installation
- Carbonated Water Imbibition Flooding for fractured reservoirs