Chairs: Mark Clapp, Baker Hughes; Manuel Marya, SLB

The key chemical reactions involved with CCS material performance will be discussed in this session.  The important differences versus typical oil field environments, such as the presence of oxygen and contaminants will be addressed.   Downhole interactions in depleted O & G reservoirs or Saline zones will be considered.

Chairs: James Cron, Geostock Sandia; Russell Bentley, WSP

Topics to be covered are CCS well design, including how to plan for and mitigate low pH reservoir influences (external issues), borehole conditions (internal issues), and wellhead and Christmas Tree (surface issues). We will build off earlier discussions in Session 1 and begin to incorporate tangible design criteria that pertain to specific operational PVT conditions. For example, what are the operating ranges of pressures, volumes (rates), or temperatures expected, and how should those guide the design? How “pure” or “water-free” is the CO2 to be injected, and how do various contaminants, such as free oxygen in the injectate and the Cl⁻ content in the reservoir fluid, affect the choice of construction materials?  Finally, we'll address practical considerations for material selection, given concerns around availability, lead times, and cost, which may impact project viability.

Chairs: Jalal Jalali, Blue Sky Infrastructure; Manuel Marya, SLB

This session will give an overview of the construction materials currently in use and also in need of new testing and qualification.  Primarily covered are existing API 5CRA and proprietary grades for tubulars, wellhead and completion equipment.  Key questions include: (1) determining the right environmental parameters to properly set up test lab testing to replicate downhole conditions. (2) determining the types of lab and scaled-up tests in that need to be performed (e.g., corrosion and others), and of key importance (3) the outcome from the tests that deem the material suitable for use in tubulars, wellhead or completion equipment (including acceptance criteria).

Chairs: Rajesh Pawar, U.S. DOE; Will Lamberth, Onium Engineering

This session will expand on specific test outcomes and the role of modeling in assessing corrosion evolution over longer-time. We will contemplate the potential as well as any challenges associated with new/proprietary material grades for application in CCS.  Coated/lined tubulars and other down-hole non-metallics will be discussed as well as the application/effectiveness of existing corrosion models for these materials.