None of Statoil’s three wells in the Barents Sea in 2014 were associated with EM anomalies of any significance. It is therefore not surprising that not one of them proved commercial quantities of hydrocarbons.
Dr. Stephen Rippington and Chris Anderson, ARKeX Ltd.
The recent opening of the south-east Barents Sea to oil and gas exploration has provided an opportunity to deploy the latest technologies such as full tensor gravity gradiometry to improve efficiency and reduce time to first oil.
The prospectivity of stratigraphically younger sediments beneath a salt layer has held oil and gas explorationists' interest for years. The target of imaging technology has been to enhance the salt-sediment interface to efficiently optimise drilling in subsalt and presalt plays.
Kinematic modelling and analysis unlock many secrets of geological systems, providing a structurally valid framework for further analysis and risk assessment, ultimately reducing uncertainty in hydrocarbon exploration and production.
For the first time, geoscientists can produce 3D images of rock features at a wide range of scales - from millimetre through micron and down to nanometre size - and peer into the rock’s porous structure, seeing what is there and how it can be produced most effectively.
Recent developments in permanent downhole monitoring provide accurate and stable measurements even in extreme high pressure/high temperature reservoir conditions. The integration of multiple measurements as they happen allows operators to make field decisions for production and reservoir management.
David Maggs, Silvia Lattuada, Roger Griffiths, Schlumberger; Mauricio Mele and Antonio Valdisturlo, Eni E&P
The benefits of directional drilling are widely known – increased reservoir exposure and greater production. However, the practice can pose formation evaluation challenges in high angle and horizontal wells, making traditional petrophysical interpretation techniques harder to apply because of geometric effects on the data. Modern wellbore software can provide a viable solution.