CAHM is the technology that makes deriving a set of distinct history-matched models possible in a realistic time frame.
Implementing multiple realisation-based workflows, where several simulation models are generated and processed concurrently, and the use of CAHM techniques, represent significant changes to workflows and the way reservoir engineers operate.
Workflows that use multiple-realisation simulations and CAHM techniques and tools can help E&P companies develop oil and gas resources faster, with better understanding of the uncertainties and reduced risk.
The use of CAHM techniques overcomes the time constraints of conventional workflows that prohibit the creation of multiple acceptable models.
Tools for CAHM are gaining acceptance among E&P companies to improve conventional simulation workflows.
CAHM tools use techniques that vary the uncertain parameters and perform simulation runs to encompass a wide range of possible results.
Petrotechnical modelling applications such as Eclipse reservoir simulation software, when used with high-performance computing resources and integrated with CAHM tools, can be used to generate multiple distinct history-matched models.
Simulation workflows that employ CAHM have great potential, but their implementation is a transformational exercise for most E&P companies.
A holistic approach to implementation, which includes a pilot project, has been shown to be effective when adopting CAHM workflows.
An assessment of the business and reservoir engineering requirements for CAHM should first seek to understand the business challenges and constraints, the current reservoir engineering workflows and capabilities, and the infrastructure and application landscape.