Casing Integrity
well design in geological challenging scenarios
Where geomechanics and structural engineering meet numerical simulations to evaluate wellbore stability, predict salt creep and guarantee adequate casing selection.
How can we help you?
Below is a short description of the key research areas. For further details or new researches, feel free to contact us.
Salt mechanics
Correlate different constitutive models to foresee transient and steady state creep behavior
Wellbore closure in Salt
Evaluate mud weight and wellbore closure to estimate critical time window and avoid non productive time.
Casing stress analysis
Casing stress-strain evolution during the events of well life and estimate yield and post-yield critical conditions.
Casing collapse
Critical annulus pressure for casing collapse and collapse propagation, as well as cascade collapse in multistring sections.
Cement channeling
The impacts of non-uniform loads due to cement channeling may result in cross-section bending and severe casing yield.
Annulus Pressure Build-up
Correlate the wellbore closure in salt to the evolution of annulus pressurization in confined annular spaces.
Salt dissolution
Salt creep combined with dissolution process. How it affects drilling time window, and how casing stresses change in the precence of salt caverns.
Subsidence
With pore pressure changes, the rock compaction is transfered to casing through cemented zones, where severe loads can lead to failure.
Software development
Automation of all well integrity analysis methodologies, and the development of a friendly user interface application for Abaqus®.
Our Customers
Petrobras has been funding this researsh as a cooperative term with PUC-Rio since 2010.
Would you like to start a project with us?
Feel free to contact us for any details of ongoing projects or new researches. Our group would be happy to share our expertise and contribute to your project.