Drill String Design

Course Code: 943645

Available Formats: iMVP (Remote)

Price: 3,999 USD

About Course

The course is designed for drilling operational staff and drilling engineers. The course provides a comprehensive treatment of drill string design, downhole drilling dynamics and the avoidance of operational problems and wear on equipment following the API recommended practices for design and operating limitations as well as the standard DS1 for design and inspection. The course starts with refreshing the engineering fundamentals and developing a sound understanding of the practical aspects and necessary considerations for design. These elements are put into practice and reinforced with a range of classroom exercises to consolidate the learning.

The emphasis is placed on practical engineering calculations and safe operating procedures. Industry standards are used as training aids to supplement the presentation material and provide a thorough understanding of the subject.

Course Details

Introduction to Drill String Design

• Overview
• Purpose of Drill String
• Drill String Components
• Drill Pipe Descriptions
• Bottom Hole Assembly (BHA)
• Exercise
• Weight on Bit Design

Mechanical Properties of Drill String

• Basic Concepts
• Deformation and Elongation
• Hook’s Law
• Moment of Inertia
• Yield Strength
• Collapse Pressure
• Burst Pressure
• Safety Factors
• Maximum Over Pull (MOP)

Drill String Dynamics

• Torque and Drag
• Free body diagram
• Buoyancy
• Forces on Submerged Tubular
• Shock Loading and Stick Slip

Calculations for Drill String Design

• Stiffness
• Weight on Bit (WOB)
• Neutral Point
• Buckling
• Axial Forces and Buckling in Submerged Tubular
• Exercise

API RP7G

• Introduction
• Drill String Design
• Operating Limits

Drilling Jars

• Purpose of Jars
• Types of Jars
• How Jars Work
• Use of Jars
• Exercises

Drill Pipe Specifications

•  Steel Grade
• Types of Connections (Tool Joints)
• Classification
• Exercises

BHA Selection Process

• Drill Collars
• Heavy Weight Drill Pipes
• Drill Pipes
• Bending Stiffness
• Stress Relief

Drill String Failures and Prevention

• Types of Failures
• Thermal Stresses
• Fatigue and Overload
• Inspection
• Care and Prevention

Overview of DS-I

• Technical Data
• Tables
• Exercises

Advances in BHA Components

• Adjustable Gauge Stabilizers
• Rotary Steerable Systems (RSS)
• Hybrid RSS