GEO ExPro

GEO Science Explained

GEO Science Explained Worldwide

Deep-Reading Technologies

Deep-reading technologies image the interwell space at higher resolution and provide a new scale of characterization that was previously not possible.

GEO Science Explained Worldwide

Linking seismic response to geomechanics

This article discusses the linkage between 4D seismic responses and geomechanics. Exploitation of this relationship has helped reduce development costs and maximize recovery from the compacting Valhall reservoir.

GEO Science Explained Europe

The Valhall LoFS Project

The Valhall permanent seismic array (Life of Field Seismic; LoFS) has successfully provided easy access to high quality 4D images for the purpose of improving oil recovery.

GEO Science Explained Worldwide

Understanding electro-magnetic surveys

Electromagnetic surveying is one of the least well understood of the non-seismic exploration techniques. There are various acquisition choices to be made - for example it can be undertaken using both horizontal and vertical transmitters/receivers. To understand the physics it pays off to use an analogy with heat waves.

GEO Science Explained Europe

The Snorre Field Pilot

In 2008 the Optowave fibre-optic seismic sensor cable was trenched at the StatoilHydro-operated Snorre field with the aim of achieving insight into installation, data acquisition and monitoring procedures. The Snorre pilot demonstrated ‘real time' data transfer and quality control - the fundamental requirement for reservoir monitoring ‘on demand'.

GEO Science Explained Europe

Providing In-depth Knowledge

Making depth conversions more reliable has become an obsession for a dedicated geophysicist. As a result the Norwegian consultancy Aker Geo now claims to have the very best tool to convert from time domain to depth domain.

GEO Science Explained Worldwide

The Next Generation Subsurface Modelling

Modelling reservoirs using a 3D grid is a common tool for both the geologist and the reservoir engineer. As models increase in structural and stratigraphic complexity the process of creating these grids has become cumbersome. In many cases the results are not satisfactory to either the geologist or the engineer.

GEO Science Explained Worldwide

Measuring Seismic with Light

Fibre optic sensing technology offers the potential for a cost-effective, reliable reservoir monitoring system as an alternative to seismic systems based on electronics. Interested in learning about fibre optic seismic sensors? This article has been designed to get you started.

GEO Science Explained Worldwide

Technology: Changing exploration - using non-seismic technology

The main purpose of applying EM data is to improve exploration decision making. "As a geoscientist working in an oil company which values integration, we try to maximise the use of data that add to our decision-making process and improve the chances of finding oil and gas," says Jonny Hesthammer, Vice President Technology with Rocksource, a Norwegian oil company that proactively uses CSEM (controlled-source electromagnetic data) in their exploration efforts in the North Sea and elsewhere.

GEO Science Explained Worldwide

The Growing Role of Geophysics

The use of geophysical methods in petroleum exploration continues to expand and is an integral discipline in the discovery and production of oil and gas deposits.

GEO Science Explained Worldwide

Advanced Remote Sensing

Radio waves from satellites can now be used to measure miniscule movements at the Earth's surface at a millimetre level. The method has gained wide acceptance for several scientific purposes, but also has definite potential for use in reservoir management.