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INNOVATION & TECHNOLOGY

 

Explore for Challenging Resources

Mastering the necessary skills to effectively explore frontier and environmentally harsh areas becomes crucial to gaining access to resources adding up to several billions of barrels.
Even though there still are large quantities of oil held by producing Countries, the search for hydrocarbons trapped into environmentally complex formations (deep or ultradeep waters, Arctic and sub-Arctic regions) is still open.
Accumulations estimated to account for several hundreds of billions of barrels of resources are believed to be trapped in those basins: over 200 billion barrels of oil can potentially be discovered in basins located in deep and extra deep waters (10% of the world total) and over 400 billion barrels in Arctic regions (over 20% of the world total).
These areas present complex geological structures or weak seismic response (in presence of salt domes, basalts, geological systems, diffused gases or hydrates). Therefore, improving the subsurface description is essential – increasing the resolution of seismic images from tens of meters to meters – and the ability to estimate the quantities and quality of the fluids contained in the sedimentary basins.
In 2009-2010 the most significant results of the Eni’s activities were focused on techniques to predict the presence of hydrocarbons in the subsoil, geophysical prospecting technologies, basin and petroleum system modelling.

  • DVADVA
  • Coil shootingCoil shooting
  • Depositional modelsDepositional models
  • Uncertainty estimationUncertainty estimation

internal technology (DVA) Depth Velocity Analysis (DVA).
Eni has developed special software that can accurately analyze the velocity of seismic signals moving through different geological structures in the analized subsoil. Its use is possible in every situation where visualizing structurally complex subsoil zones is required (e.g. deep water fields “hidden‘ by salt or basalt layers in the Gulf of Mexico, in Brazil, Africa, the Caspian Sea, etc.).
In 2009 the technology was successfully applied in Egypt and Angola
For the development of DVA platform, the Eni Award - Eni innovation prize 2009 was assigned to Clara Andreoletti (E&P Division).

map of subsoil made up with the use of coil shooting technologyCoil Shooting.
Coil shooting is a methodology for seismic data acquisition in offshore fields, that uses streamers dragged by a ship on spiral routes rather than on traditional regular geometric grids. This technology enables to obtain subsoil images more detailed than the ones obtained by conventional techniques, and reduces operating times and mineral risks.
In 2008, seismic data acquisition was successfully carried out in Indonesia by using this methodology for the first time in the world and data interpretation is actually on-going.

Depositional models for meandering channel systems
This proprietary technology is based on geologic simulation codes that allows to build models on the more favorable conditions for hydrocarbon reservoirs. It allows to prepare three-dimensional simulations of past erosion and accumulation phases, typical of underwater channels. It has been successfully applied for the evaluation of mineral potential in fields in India and Angola.

Uncertainty estimation for thinly bedded reservoir
This methodology has been successfully applied in Angola for estimating the production potential of a field as it allows to detail some parts of the subsoil.




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Last updated on 15/12/10