Elfen wellbore & well log v.1.7
Release date: 11th November 2020
Successful hydrocarbon recovery has become increasingly challenging with the oil and gas industry exploring reservoirs under unfavourable geological conditions. Many operations rely on wellbore stability, usually provided by suitable mud-weight. Estimating the operating mud-weight window requires the combination of in-situ stress conditions, well trajectory and formation material properties to eliminate instability issues.
Elfen well log software is a simple yet powerful tool, which amongst other operations conducts analytical calculations to predict the onset of plastic yielding and damage around a wellbore. However, since analytical assumptions can become limiting, Elfen well log is directly integrated with Elfen wellbore, a dedicated finite element software package for modelling near-wellbore scenarios. These models can be used to assess more accurately areas of concern initially raised from analytical estimates. Together with advanced constitutive material models, various complex mechanisms can be captured including:
Breakout and breakdown modes
Assessment of any stress condition
Full range of well inclination / azimuth
Automated parameter sensitivity studies
Features and Benefits:
Integration between log-based data /assessment and state-of-the-art finite element modelling; parameters directly mapped from 1D/3D MEM
Robust modelling of complex phenomena with simple, intuitive and fast UI
Elfen well log includes predefined functions such as mud-weight windows and polar plots, as well as a process editor for bespoke calculations
Sophisticated material models capable of representing
● Tensile, shear and compaction yielding
● Planes of weakness / bedding
Tools aid managing and mitigating risk:
● Address uncertainty (sensitivity assessment)
● Understanding of operating conditions and setting safety factors