Elfen wellbore is utilised to accurately simulate the well-life process from beginning to end across all environments.
Together with advanced constitutive material models, various complex mechanisms can be captured including, breakout modes, creeping shale, internal / external filter-cake.
Elfen wellbore includes all near wellbore applications such as, stress, stability and loss circulation, fines migration and mud-cake modelling, sanding analysis and prediction, sand screens and advanced completions systems design, near wellbore fracture and damage prediction, and well string assessments (via Elfen horizon).
Utilisation of our software can accurately estimate mud-weight windows and well trajectory optimisation with the ability to model near-wellbore and completion scenarios.
Wellbore case study
There has been significant debate over the exact mechanisms that allow the sand to be produced and whether the process creates a radial zone of high permeability around the wellbore or more linear high permeability channels (wormholes) out from the reservoir. Numerical modelling of the sand production process presents significant numerical challenges mainly because it is a highly-coupled nonlinear process and requires constitutive models that are able to capture the material instability.
For simulations of the CHOPS process, the model shows that a key aspect of the process is the shifting of the overburden stress from parts of the reservoir sand that fail and are produced to those where the sand has not failed. It is this mechanism that allows wormholes to form in the numerical models. The models have also shown conditions which can be induced in the reservoir to enhance formation of wormholes. Automatic adaptive remeshing for TWC simulation (Rockfield, 2007)