World-class training for the modern energy industry

Reconnecting Teams on the Rocks of the Wessex Basin, Dorset, UK (G056)

  • TypeType: Field
  • TypeDiscipline: Basin Analysis, Depositional Systems
  • TypeDuration: 2 Days

Tutor(s)

Jonathan Evans: GeoLogica

Overview

After a year of working remotely and endless video calls, wouldn’t it be great to get your team together to visit some classic geological outcrops, (re)learn something about field geology and have some time together. This two-day trip will illustrate the petroleum geology of the Wessex Basin using the outcrops of the Jurassic Coast of Devon and Dorset. We will see source rocks, reservoirs, caprocks and different trapping structures and also have chance to find some fossils.

Duration and Logistics

A 2 day field course in Dorset.

Exertion Level

This class requires a LOW exertion level. Hikes are generally 1-2 km in length across irregular terrain, on sandy beaches, coastal paths and sometimes on rocky beaches.

Level and Audience

The level of the trip can be tailored to cater for the target audience: subsurface teams, integrated project teams or raising awareness for a generalist audience.

Objectives

Your team will learn to:

  1. Appreciate what elements are required for a working Petroleum System.
  2. Identify source rocks, how they form and what makes a good source rock.
  3. Compare different reservoir rocks, including sandstones and chalk, to work out how they were deposited and what controls the key reservoir properties of porosity and permeability at different scales.
  4. Understand what different types of subsurface data measure and what scale of information they provide e.g. seismic, well logs, core, well tests, production tests.
  5. Describe different seals both above and within the reservoir intervals.
  6. Understand the Petroleum Geology of the Wessex Basin including the giant Wytch Farm oilfield.

Course Content

Itinerary (draft)

The trip can be run starting and finishing in Exeter or as a “one way” trip from Poole to Exeter (or vice versa) with an overnight stay in Lyme Regis or Bridport.

Teams may want to spend a night in a hotel (Poole or Exeter) before Day 1 and/or to add a day before or after the trip for work-related off-site meetings or other team-building activities.

Day 1

Visit outcrops of the:

  • Kimmeridge Clay (Source rock and seal) – Kimmeridge Bay
  • Chalk and Greensand (reservoirs & structures) – Lulworth Cove

Lunch at the Smugglers Inn, Osmington

  • Bencliff Grit (reservoir and carrier bed/seep) – Osmington Mills
  • Bridport Sands (Reservoir)

Overnight in Exeter

Day 2

Visit outcrops of the:

  • Exmouth Sandstone (reservoir, faults and seals) – Orcombe Point
  • Otter Sandstone (reservoir and seals) – Ladram Bay

Lunch at Otterton

  • Blue Lias (Source Rock & Fossils) – Lyme Regis
  • Visit to Wytch Farm (gathering station viewpoint and Godlingston viewpoint)

Depart

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