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…
Worldwide
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…
Why do cables get stuck during open-hole wireline logging operations?
In his book “Oil Notes”, geologist Rick Bass describes the importance of logging operations. Only after completing a log run, the well can be properly classed as a success or…
“I think it is going to be mission impossible”
“The key challenge when it comes to storing CO2 is containment”, says Raffik Lazar, CEO of Dubai-based GeomodL International. “And the only element I can trust in the containment scenario…
Quad 35 Hybrid MC3Ds: Innovative multi-parameter FWI for near field exploration
Figure 2: Gjøa Well Templates Show up on Timeslice 460 ms. Figure 3: Map of Geological Structures Around Quad 35. Utilising all hybrid acquired waveforms in a revolutionary MP-FWI processing…