Get notified when this course becomes available
Be one of the first to know when you can start training.
Well Engineering for CO2 Storage Applications (EC033)
Course Summary
This course covers the design specifics of CO2 injection wells. Such wells may be existing or new wells which need to be designed with the challenges of CO2 injection in mind. The design includes the casing, cement, completion and all associated equipment. The challenges covered included potentially highly corrosive (to metals and cements) fluids, large temperature changes associated with potential phase changes and the long-term integrity requirements. In addition to casing design and cement design, equipment selection (such as packers with their associated elastomers) and tubular connections will be examined for their suitability for CO2 injection. Legacy offset wells will be examined for potential leak paths over the long-term. Examples from existing and planned schemes will be reviewed throughout.
Attendees should be capable well engineers (completions or drilling) or technical specialists such as chemists, geomechanics, or material specialists.
Available H2 2023
Course Details
Course duration and training method
Courses are accessed on the RPS Learning Hub, each course consists of a series of modules of up to 90 minutes learning time, including self-assessment elements. Learning materials are structured into short sections, each including interactive text and image content, animations, video and audio. An end of course quiz is scored to provide the learner with their learning progress.
Course Duration: 12 Hours
Learning outcomes
Participants will learn to:
- Evaluate well integrity with respect to CO2.
- Consider the challenges that CO2 gas versus dense phases present and undertake PVT calculations.
- Assess the corrosive impacts of CO2 including the impact of stress corrosion at low temperatures.
- Formulate stress calculations for the liner, production casing and tubing.
- Analyse the issues of cement design for CO2 wells, including both legacy and new well designs.
- Examine the issues involved in repurposing existing wells with reference to existing casing designs and cement evaluation.
- Construct risk assessments and understand monitoring technology and regulatory frameworks.
Course content
Topic 1
- Overview, global and subsurface perspective
- Well integrity perspective with respect to CCS - Short vs. long-term and existing vs. new design
Topic 2
- The volume challenge with CO2 and the facilities challenges, including calculations – gas vs. dense phase
- PVT Properties of CO2 with phase envelope and enthalpy
- Associated thermal calculations for CCS - the potential for large cooling
- Worked Example using PVT and enthalpy calculations
Topic 3
- Corrosion and material selection with specific reference to CO2
- Wet vs. dry CO2
- Stress corrosion cracking at low temperatures
- Worked example using partial pressures and corrosion experimental data
- Tubular material properties and asymmetry/ anisotropy as well as temperature dependent yield and coefficient of thermal expansion
Topic 4
- Working stress calculations and well design
- Formulate hand calculations and software input
- Simple hand calculations using Session 2 temperatures for the liner, production casing and tubing
- Worked Example demo using software of tubing, liner and production casing
- The specific difficulties with the VME / Design limit plot
- Well design with reference to the cap rock and cap rock fracturing and cap rock strength reduction
Topic 5
- Equipment and tubular connections. CAL III and CAL IV ISO testing and connection envelopes
- Cement design for CCS – legacy vs. new well designs
Topic 6
- Repurposing existing wells with reference to existing casing designs and cement evaluation
- Managing offset to injection legacy suspended and abandoned wells
- Example from Goldeneye
- Risk assessments, monitoring technology and regulatory framework