PGK monthly lecture

Our monthly meeting of Wednesday 21 October will be a ‘hybrid’ event; members can join either physically or online. Our guest speaker is Richard Huis in ‘t Veld (Wintershall Noordzee) and he will give a talk about: “the Wingate Field (UK): reservoir development and dynamic behaviour of a Westphalian gas field compared to its analogues”.

Program:
17:30-18:00 hrs: Social
18:00-19:00 hrs: Lecture
19:00 hrs: Social

Join us online…
The meeting will be live streamed through MS Teams for members who prefer to join remotely. Click the link below shortly before 18:00 hrs to participate online. Note that you do not need to register. Join Microsoft Teams Meeting

… or physically attend
Those who are willing and able can register to physically attend the event. A larger lecture room at the Haagsche Kluis and a maximum attendance set at 25 participants allow us to keep a safe distance. Rules and guidelines specific to the venue and the event will be explained upon entry and we will keep a record of attendees and their contact details in case a contact inquiry is needed. We count on everyone there to help make this happen in a safe and responsible way. Click here to sign up

By signing up to this event, you acknowledge that…

• … participation is at your own risk
• … you will help prevent contamination by keeping to the rules and guidelines set out by the Dutch authorities, the venue, and the PGK board
• … your attendance requires that you leave your contact details (Email and phone number) in case a contact inquiry is needed
• … you will let us know if you develop symptoms and/or are positively tested for COVID-19 prior to the event or within 14 days after the event
• … the PGK will continue to assess the need to modify or cancel the event in case the situation demands that we do so

Abstract:
The Wingate gas field was discovered in August 2008 by Wintershall Noordzee exploration well 44/24b-7, which targeted a Base Permian closure with subcropping reservoirs of the Late Carboniferous Lower Ketch Formation. Pre-drill, significant upside was identified as a result of ConocoPhillips’ nearby 44/23b-13 well (drilled in 2006), where the Westoe Coal Formation provides a seat seal to the Lower Ketch Formation. Because of the large difference in free water level between the two wells, the volumetric uncertainty of undrilled compartments with reservoirs in the Lower Ketch, as well as the Caister Formation, remained relatively high. To manage development risk and uncertainty without further appraisal expenditure, and to allow for early gas production, a phased field development was planned: that is, to appraise through development and production. Gas production, through a six-slot platform and export to the Dutch Neptune Energy operated D15-A platform, commenced in October 2011, only 3 years after discovery. Initial development comprised the tieback of the exploration well and drilling of the second compartment with well 44/24b-A2Y. Subsequently, three more compartments were drilled as soon as production dropped off plateau. During the appraisal/development and 7 years of production, knowledge of the reservoirs increased significantly, improving the understanding of the challenging Westphalian gas play.
Knowledge acquired during the development and production phases of the Wingate Field, as well as the analogous Dutch D12-A and D15-A Fields and studies on released data of nearby UK fields in the Caister-Murdoch System and Tyne Field, is applied by the operator Wintershall Noordzee in managing the complex Westphalian reservoirs and constructing the static-dynamic 3D reservoir models. It also resulted in further exploration success and the current development of the Sillimanite Field, which has significantly extended the life expectancy of key offshore gas producing infrastructure, the D15-A production platform and the WGT pipeline system. The most important subsurface production issues of the analogues, such as dynamic pressure behaviour, aquifer response and downhole halite scaling, and their relationship with reservoir architecture and quality, will also be discussed during the presentation.