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The Southern North Sea Basin area, stretching from the UK to the Netherlands, has a rich hydrocarbon exploration and production history. The past, present and expected future hydrocarbon and geothermal exploration trends in this area are discussed for eight key lithostratigraphic intervals, ranging from the Lower Carboniferous to Cenozoic. In the period between 2007 and 2017, a total of 95 new hydrocarbon fields were discovered, particularly in Upper Carboniferous, Rotliegend and Triassic reservoirs. Nineteen geothermal systems were discovered in the Netherlands onshore, mainly targeting aquifers in the Rotliegend and Upper Jurassic/Lower Cretaceous formations. Although the Southern North Sea Basin area is mature in terms of hydrocarbon exploration, it is shown that with existing and new geological insights, additional energy resources are still being proven in new plays such as the basal Upper Rotliegend (Ruby discovery) for natural gas and a new Chalk play for oil. It is predicted that hydrocarbon exploration in the Southern North Sea Basin area will probably experience a slight growth in the coming decade before slowing down, as the energy transition further matures. Geothermal exploration is expected to continue growing in the Netherlands onshore as well as gain more momentum in the UK.

Achtergrond. Training in evidence-based medicine (EBM) is een belangrijk onderdeel van de huisartsopleiding. Onderzoek laat zien dat in de klinische praktijk geïntegreerd EBM-onderwijs betere resultaten geeft dan opzichzelfstaande (stand-alone) theoretische modules. Echter, deze onderzoeken werden niet uitgevoerd binnen de huisartsgeneeskunde en keken niet naar effecten op EBM-gedrag in de praktijk na de opleiding. Wij onderzochten de effecten van geïntegreerd versus het gebruikelijke stand-alone EBM-onderwijs op EBM-gedrag, -attitude en -kennis bij huisartsen bij afronding van de opleiding en een jaar daarna.Methoden. In een pragmatische, cluster-gerandomiseerde trial werden zes groepen derdejaars aios huisartsgeneeskunde van het UMC Utrecht verdeeld over geïntegreerd of gangbaar EBM-onderwijs. Voor EBM-gedrag keken we naar het handelen volgens NHG-richtlijnen, het hebben van klinische dilemma’s en het zoeken naar antwoorden. Aios hielden consultlogboeken bij. EBM-attitude en -kennis werden gemeten met behulp van gevalideerde vragenlijsten. Data werden verzameld aan het begin (T0) en einde (T1) van het derde jaar, en een jaar na afronding van de opleiding (T2). Multilevel-analyses werden uitgevoerd op basis van intention-to-treat.Resultaten. Van 82 aios in 6 groepen deden er 79 mee (96%); 39 in de interventiegroep, 40 in de controlegroep. Van 76 (96%) hiervan waren logboekdata op baseline (T0) beschikbaar, van 60 (76%) op T1 en van 53 (67%) op T2. We vonden geen significante verschillen tussen de groepen in EBM-gedrag, -kennis en attitude.Conclusie. Meer in de praktijk geïntegreerd EBM-onderwijs heeft, vergeleken met het gebruikelijke, stand-alone, onderwijs, geen effect op EBM-toepassing, -attitude of -kennis van (toekomstige) huisartsen.

Safety and cost control are critical success factors in the realm of drilling. Actual well costs frequently exceed planned costs due to unexpected drilling incidents related to potentially avoidable geohazards. It is estimated that - in the Netherlands on average - around 20% of drilling time is spent recovering from such unexpected incidents. A significant part of this non-productive time (NPT) can be avoided if geohazards are identified upfront. The risk assessment for a well trajectory is largely based on the experience from offset wells: boreholes in the neighbourhood that have been drilled earlier or holes drilled through similar geological settings. Easy access to relevant historic drilling data and the records of geohazards encountered in offset wells is essential for effective de-risking of future drilling programs. Currently operators typically have their own databases containing this type of information. However, their databases are often incomplete and lack data from competitor wells. Obviously, the risk assessment would greatly benefit from access to a complete set of drilling hazard data, whilst making use of "best practices" in data analyses and incident classification. EBN B.V., the Dutch state E&P company with 0.5 million BOE/d equity production, is involved in most of the 40+ wells being drilled annually in the Netherlands. Recognising its major vested interest in improved drilling performance, EBN launched a Joint Industry Project to capture the knowledge of drilling hazards across the Industry. An important tool to classify drilling incidents is the Drilling Incidence Triangle. Based on this new concept, those drilling incidents that have a geological component are selected, analysed and made accessible for the Industry partners. Copyright 2013, Society of Petroleum Engineers.