AN INTRODUCTION TO OFFSHORE GEOPHYSICS & GEOTECHNICAL ENGINEERING
THURSDAY 8TH JUNE 2023 9:30AM
ROOM 201, LEVEL 2, SKEMPTON BUILDING
DEPARTMENT OF CIVIL & ENVIRONMENTAL ENGINEERING
9:30 Registration
10.00 Welcome & Introduction Richard Jardine
- Introduction to the course Imperial College
10.10 Industry Overview Mick Cook
- Overview Mick Cook Limited
- Seabed Risk
- Types of survey
- Desk studies & planning
10.40 Introduction to Positioning and Seabed/Subsea Surveying TBC
- Positioning basics (UTM, Zones, Spheroids, conventions) TBC
- Multibeam echosounder systems
- Sidescan Sonars
- Sub-bottom profiling
11.10 BREAK – Tea and Coffee sponsored by Ørsted
11.30 Introductory Seismic Principles Dei Huws
- Modes of propagation Bangor University
- Controls on propagation velocity
- Losses
- Effect of an interface
- What is a seismic trace?
12.00 The Use of 3D Seismic Data in Site Investigation Øyvind Ruden
- The 3-D exploration seismic technique Shell
- 3D vs 2D – benefits and limitations
- The power of 3D
- Case studies – an integrated approach
12.30 Q & A Session
12.45 LUNCH
13.30 Geotechnical Site Investigation TBC
- Seabed sampling & CPT systems Fugro
- Downhole drilling, sampling, and in-situ testing
- Different types of vessels
14.00 Data Interpretation Gayle Hough
- Geophysical interpretation applications BP
- End users and their needs
- Hazard interpretation for Facilities
- Hazard interpretation for Wells
14.30 Offshore Geohazard Assessment Jo Blackwell
- What are Geohazards? Fugro
- Why investigate them?
- A strategy for investigation & risk analysis
- Case study
15.00 BREAK – Tea and Coffee sponsored by Ørsted
15.15 Geotechnical Analysis for Pipelines Patrick Moran
- Key geotechnical parameters Inosys
- Site investigation requirements
- Design issues to be addressed
- Case studies
15.45 Shallow and Suction Installed Foundations Pablo Castillo Garcia
- Concepts & Definition Subsea 7
- Jack-up Rigs
- Suction Installed Foundations
- Gravity Based Foundations
- Summary
16.15 BREAK
16.20 Pile Design for Offshore Structures Avi Shonberg
- Overview Ørsted
- Axial pile performance
- Lateral pile performance
- Pile installation
- Other offshore issues (scour, setup)
16.50 Careers in Offshore Energy Stelios Panayides
Subsea 7
17.20 Q & A & Final comments and closure Richard Jardine
Imperial College
17.30 EVENING RECEPTION – sponsored by Subsea 7
