Course Overview

Wells are the media through which engineers convey hydrocarbons from the reservoir to the surface. Since this transportation largely occurs in regions that are very rarely seen with the physical eyes and as hydrocarbons are highly flammable, careful considerations need to be put in place to ensure that hydrocarbons are brought to the surface in a safely controlled manner.

Casing and tubing are very important aspects of the well architecture. Casings ensure the well integrity is preserved and, sometimes like the tubing, provide a pathway for the flow of fluids through the well. Fluid pressure and the well trajectory make it imperative for engineers to carefully design casings and tubing’s so as to avoid failure and mishaps.

Every parameter is considered in the design process, from the type of material to its length, weight and thickness. Different wells, in different terrains targeting different reservoirs need to be considered individually, hence, the significance of understanding the possibilities available as well as the importance of matching each well with its appropriate casing and tubing design.

This Zoe training course will provide you with all relevant information and knowledge about casing and tubing designs and the practical operations required therein. Through this course, you would acquire the skills and capabilities to work as a drilling engineer, thus broadening avenues for greater opportunities and promoting career growth.

Course Objectives

The key objective of this Advanced Casing and Tubing Design Calculations course is to ensure trainees become professionals who are able to —

• Thoroughly understand various aspects of well architecture and the variety of subsurface tubular
• Have a firm grasp of the metallurgy of tubular as well as the advantages and disadvantages of various materials
• Recommend casing to be used throughout the length of the well for all terrains and conditions
• Accurately predict the effects of temperature, pressure and fluid properties on casing design as well as making appropriate corrections to design calculations
• Analyse casing failures and proffer viable and cost-effective solutions
• Utilize data analysis skills in well architecture problems
• Perform design calculations by hand and have a working knowledge of the application of software like WellCAT

Training Methodology

Zoe Talent Solutions has a track record of delivering bespoke courses in a wide array of subjects. These courses are aptly tailored to the needs of the trainees, putting into consideration all possible partakers of the courses. Training is delivered by professionals who have gathered a lifetime and a half of industry experience with regards to the subject matter.

Zoe Talent Solutions also recognizes the need for hands-on experience in conjunction with theoretical knowledge, hence, all courses are designed to be the perfect mix of theory and practical sessions. Frequent communication amongst trainees as well as between trainees and trainers is encouraged. This is not only aimed at improving the learning process but also providing a platform for easier networking.

All trainings are designed using the aforementioned format which was conceptualized by Zoe Talent Solutions and called the Do–Review–Learn–Apply Model.

Organisational Benefits

With professionals undergoing this Advanced Casing and Tubing Design Calculations course, organisations will benefit in ways mentioned below:

• Highly improved employees’ capacity
• Lower downtime during casing and tubing installation jobs as well as its associated cost savings
• Appropriate tubular selection in line with the highest of global standards
• Thorough review of existing subsurface tubular for potential failure and preventative maintenance
• Lower number of casing and tubing failures translating to little production disruption as well as lower potential for incidents
• More business opportunities as there will be increased capacity to execute more casing jobs

Personal Benefits

Professionals opting for this Advanced Casing and Tubing Design Calculations course will benefit in the below-mentioned ways:

• Complete understanding of well architecture and subsurface tubular
• Greater understanding and knowledge to review current casing and tubing design and make appropriate and accurate recommendations
• Enhanced predictive abilities to foresee potential casing failure for different well conditions
• Greater potential to manage organisational costs by speedy decision-making during casing and tubing jobs
• Up-to-date knowledge on the modern techniques involved in well planning and casing design
• Increased self-confidence in carrying out day-to-day activities
• Improved confidence in correcting colleagues with bad design practices

Who Should Attend?

• Executives and others working for drilling contractors
• Top management of E&P companies responsible for critical decision making
• Managers overseeing drilling operations in exploration and production companies
• Drilling Engineers looking to bolster their capacity and seeking better opportunities
• Vendors involved in the procurement of oil country tubular goods (OCTG)
• Internal/External auditors checking and ensuring compliance with all required standards
• Engineers with keen in the oil and gas industry, particularly drilling engineering

Course Outline

The course covers the following topics regarding advanced casing and tubing design calculations:

Module 1: Overview of Well Architecture

• Review of types of wells
• Typical well geometry
• Vertical
• Deviated
• Horizontal
• Well casing
• Functions
• Types
• Conductor casing
• Surface Casing
• Intermediate Casing
• Casing Liner
• Production Casing
• Casing accessories and functions
• Production tubing
• Functions
• Types
• Standards

Module 2: Casing and Tubing Metallurgy

• Properties
• Material
• Weight
• Wall Thickness
• Size
• Burst Pressure
• Collapse Pressure
• Typical range of tubular length
• Pipe Grades
• API
• ASTM

Module 3: Design Considerations

• Formation Pressure
• Fracture gradient
• Abnormally pressured zones
• Under pressured zones
• Over pressured zones
• Annular pressure build-up
• Definition
• Causes
• Mitigation
• Load distribution
• Tension
• Compression
• Elastic Limit
• Design factors
• Uniaxial
• Biaxial
• Triaxial
• Pipe equations and calculations
• Cost consideration

Module 4: Casing Setting

• Geologic considerations
• Choice of casing
• Casing seat selection
• Bottom up
• Top Down
• Wellhead suspension
• Sticking
• Mechanical sticking
• Differential sticking
• Factors that affect sticking
• Buckling
• Cementing
• Vertical Wells
• Deviated Wells

Module 5: Failure

• Failure Indicators
• Causes
• Pressure-based
• Corrosion

Module 6: Connections

• Introduction
• Types
• API
• Proprietary
• Tank supports

Module 7: Special Cases

• Design corrections for flowing fluid
• Liquid
• Gas
• Multiphase
• High Temperature High Pressure wells
• Effects of temperature
• Effects of pressure
• Design corrections
• Unconventional wells
• Hydraulic fracturing
• Steam cycling
• Design corrections

Module 8: Modern Techniques in Casing Design

• Data analysis and failure prediction
• Use of software
• Introduction to WellCAT
• Introduction to StressCheck

Module 9: Design Case Studies

• Case study 1 – Norne Field Data
• Hand calculation
• Case study 2 – Volve Field Data
• Hand calculation
• Use of WellCAT
• Case study 3 – Topaz Field Data (Exercise)
• Hand calculation
• Use of WellCAT