Deciphering the wealth of data that come from fibre optic sensing
It is corrosion resistant, has a long lifetime, no electronics are required downhole, and the “cable” is only a quarter of a millimeter thick. Fibre optic sensing technology has a…
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A dissolvable tool
Andrew Garioch from Well-SENSE talks us through the use of fibre-optic technology for well intervention work
Can a seal fail?
A seal is a rock that has a higher capillary entry pressure relative to other adjacent rocks. The higher the contrast, the greater the hydrocarbon column it can hold. The…
What is the longest well drilled along hole?
Based on a post on social media, in which we asked our followers to name the well with the highest step-out ratio – the ratio between horizontal distance and vertical…
This is the time of subsurface by-products
Speaking to an Aberdeen audience about 10 years ago, Jon Gluyas argued that the North Sea oil business was in essence a water industry. Looking at volumes of produced water…
Seismic velocity – A strong identifier of gas prospects
P-wave velocity (Vp) is an essential parameter for constructing seismic velocity models for geophysical exploration data, and porosity is the single most important factor affecting it, along with the type of…
When will the first prospect be drilled that was identified and de-risked through the use of AI?
There is a buzz around artificial intelligence (AI). With routine tasks being increasingly taken over by machines, to the point that they are better trained than the human eye, when…
“It is important to embrace what matters in other subsurface realms”
“Having worked in oil and gas for years, I was convinced I knew how to drill a well”, Rodney Garrard says. “Then I moved to Switzerland to join NAGRA, the…
The future lies in low-perm reservoirs – not only in the desert but possibly in deep-water too
We received quite a few comments on our short story about the commencement of tight gas production from the Ghawar field in Saudi Arabia. Thanks to that, there is an…
What moves a grain?
Plume dispersion is not solely a matter of distance from the mine site, physical processeses are also important”, said Thomas Peacock, professor at Massachusetts Institute of Technology (MIT) at the…
Advanced digital solutions help upstream oil & gas companies increase productivity and profitability
Today’s energy industry faces the unprecedented challenge of balancing energy security, affordability and environmental sustainability. As hydrocarbons are expected to remain major components of global energy demand for the foreseeable…
“Rigs are fantastic places for R&D”
“I have always wanted to have one foot in the field and one foot in the lab, to better solve practical problems in the oilfield”, says Guy Wheater on a…