Furthering the pursuit of delivering wellbore integrity, Halliburton invested two years and significant resources in developing the most advanced analytical tool in the industry, iCem® Service. Based on computational fluid dynamics and finite element analysis, the simulations run with iCem service help enable the evaluation and optimization of cement designs. iCem service simulations have been tested for accuracy by an independent laboratory in Adelaide, Australia.
Selecting a cement composition for individual wells that has adequate pumping time, sufficient strength development (without excessive wait-on-cement time), and balanced displacement force is complicated business. iCem service helps simplify the complexities of achieving a reliable annular seal.
iCem Service is operated by Halliburton-certified technical professionals globally, iCem service evaluates the effect of changes to variables including mud displacement, slurry properties, casing/pipe movement & centralization, fluid volumes, pump rates, and temperature/pressure differentials in order to optimize the cement placement and sheath design for the life of the well. Prognostic models simulate fluid-flow interaction, displacement phenomena, and stresses in set cement to optimize designs for primary cementing, a reverse-circulation job, a balanced plug job, or a post-cementing job evaluation. It appraises the cumulative effect of stress to the cement sheath from events such as pressure and well testing, injection and stimulation treatments and production cycling. Different results can be compared simultaneously for vigorous design evaluation and in real time during operations, enabling continual improvement from pre-job planning through to post-job analysis.
iCem service is a scientifically-grounded analytical tool to help operators, regardless of the asset they are developing, make better decisions faster. Simulations that took days to develop and execute are now reduced to 2-3 hours. Such time savings calculated against the global volume of wells planned yearly is the equivalent of the annual man hours for 60 technical professionals, enhancing overall productivity. With a uniform platform and single data entry, iCem service simplifies complexities while enhancing reliability, simulating the cement sheath at any point in the life of the well, helping answer questions before the job is run, enabling the pre-determination of the true top of cement, the fluid intermingling effect on cement purity, and the extent of mud channeling. Such specific investigative modeling helps operators improve well economics with an annular barrier that serves as a foundation for helping increase ultimate recovery. iCem service enables prediction of required material choices and volumes, potentially reducing the cost of an operation. iCem service runs various simulations according to specific wellbore architecture design data provided by the operator, enabling cementing solutions to be specifically designed to meet the needs of individual wells in assets worldwide ranging from geothermal to deepwater, unconventional to thermal recovery.