Natural Fractures (Faults and Joints): Quantification and Analysis

GeoLogica Limited
Course summary
3 days
Corporate Training for Teams
Next available date: Enquire for more information - Online courses
Course Dates
Online courses
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United Kingdom
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Course description

Natural Fractures (Faults and Joints): Quantification and Analysis

TRACS and GeoLogica are working in partnership to deliver classes to the oil and gas industry. TRACS bring proven, high-quality courses and GeoLogica bring their years of experience in the ability to deliver them to a multi-client audience. This course will explore superb exposures of fault and joint systems within the Triassic/Lower Jurassic of the East Bristol Channel and Central Somerset Basins, focusing on 3-D seismic scale fault systems, including a variety of fracture geometries, fabrics and networks. Field analysis will be supported by materials on stress, strain and fracture development, as well as an analysis of both seal potential and flow potential. Key challenges regarding predicting fracture volumetrics and the challenges of fault seal will be addressed, including how to bridge the gap between outcrop detail and seismic structures and how to represent fractures in reservoir models, whether they be sealing or conductive to flow.

The manual will be provided in digital format and you will be required to bring a laptop or tablet computer to the course.

Suitability - Who should attend?

The course is designed for geoscientists, petrophysicists, reservoir engineers and well engineers. Ideally structured for groups working in multi-discipline, asset-based teams with structurally complex reservoirs wishing to understand fracture properties and their impact on fluid flow.

Exertion Level

This class requires an EASY exertion level. Somerset is quite comfortable in the spring and early summer, with temperatures of 520°C (4065°F) and occasional rain showers. Field stops require short walks along coastal paths, beaches and wave cut platforms. The longest walk is

Outcome / Qualification etc.

  • Characterize fracture systems and geometries in the subsurface.
  • Quantify fault properties, including sealing capacity and threshold pressure.
  • Quantify open natural fracture properties.
  • Address modeling challenges for fracture type and fracture property distribution.
  • Represent fractures (both faults and joints) in reservoir simulations.
  • Evaluate risk and uncertainty associated with fracture modeling.
  • Evaluate the impact of fractures on well planning and seal integrity.

Training Course Content

Itinerary (Provisional)

Day 0 Arrival into Bristol Airport and transfer to Holford, Somerset (or make own way to Holford).

Day 1 The class begins with a short introductory lecture and course safety briefing.

Classroom: Faults as structural elements

Fault properties (beyond “open or closed”)

  • Faults vs joints
  • Hybrid fractures
  • Fault terminology
  • Faults as volumes
  • Fault related fracturing
  • Damage zones

Fieldwork: Watchet

Day 2

Classroom: Fault seal components (inside a gouge)

  • Fault seal processes
  • Layer juxtaposition
  • Lithological mixing
  • Cementation
  • Clay smear
  • Shale Gouge Ratio

Fieldwork: Kilve

Day 3

Classroom: Fault rock permeability

  • Measured fault rock permeabilities
  • The Sperrevik relationships

Faults-Baffles, Barriers or Conduits

  • Fault seal
  • Relative permeability effects
  • Production behavior

Fieldwork: Klive

Day 4

  • Departure: Return to Bristol Airport for flights home.

Course delivery details

3 days; a mix of field visits (50%) and classroom lectures with exercises (50%).

About provider

Providing world-class training for the energy industry, GeoLogica is an experienced team with an extensive network of tutors and instructors on their books. Their expertise spans both subsurface training for the oil and gas industry, as well as training aimed...

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GeoLogica Limited

Oxford Point, 19 Oxford Road
BH8 8GS Bournemouth Dorset

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