Former Jack-Up Committee Chair to Speak at SUT Event on Foundation Issues

6 October 2021

Topics

Jackups rigs are designed to move. It should be of no surprise that a jackup rig will be used at more than a dozen worksites during its lifespan. Their engineering affords them a flexibility in various ranges of soil types, water depths, and environmental conditions. Wherever drillers need to drill offshore, a jackup rig’s legs can get jacked down into the water all the way to the seafloor.

Getting a good foundation is where problems can arise. Whether it’s issues with bearing and sliding capacity, rack phase difference, punch through, or existing footprints, a jackup rig’s foundation is vital to safe operation.

That’s why we were happy to hear that Mike Dowdy, former Chair of IADC’s Jackup Rig Committee will be speaking at a Society for Underwater Technology’s (SUT) webinar event. The event title is “Integrated Jack-up Rig Foundation Issues,” and is a collaboration between SUT’s Committee on Offshore Site Investigation and Geotechnics (OSIG) and IADC’s Committee on Jack-Ups.

Webinar Details

Integrated Jack-up Rig Foundation Issues
Wed, Oct 20, 2021 – 8:00 AM CST
Virtual Webinar (event registration)

Fees:

SUT Members: $100
Non-Members $125
SUT Student Members: Free
Student Non-Members: $15

ebinar Session Program

8:00AM CDT	Introduction Speaker: Mr. Jack Templeton, SAGE USA, Inc.
8:10AM CDT	Accident Record Speaker: Mr. Bob Jack, DNV, Noble Denton Marine Services. This presentation sets the scene for the webinar. It shows how foundation accidents fit into the overall jack-up accident regime and how they have changed with time to become one of the major causes of losses and deaths on jack-ups and lift boats. The causes and possible ways to reduce their effects are suggested. The relationship with jacking system failures, which tend to have very similar results is explored.
8:30AM CDT	Geophysical Site Evaluation Speaker: Mr. Andy Hill, BP
8:50AM CDT	Geotechnical Assessments Speaker: Mr. David Menzies, Matthews Daniel- Jack-Up Rigs – Data for Assessment – Methods of Analyses – Problem Soil Conditions – Foundation Risk Management – Foundation Case Histories
9:10AM CDT	Mechanical Aspects Speaker: Mr. Mike Dowdy, OE Consulting, LLC- Punch-thru load case – Leg & jacking system design evolution has increased consequences of punch-thru – Some Jacking system control technology has improved ability to monitor and recover RPD – Immediate response actions – Dumping preload rapidly – better dumping systems – Jacking during the event can make things worse – Designers should include nominal punch-thru load cases in leg design and specify RPD and/or punch-thru elastic limits – Deep penetration leg pulling is another critical load case
9:30AM CDT	Panel Q&A Session Speakers: Mr. Jack Templeton, SAGE USA, Inc.; Mr. Kerry Campbell, retired Fugro
10:00AM CDT	Closing Speakers: Mr. Kerry Campbell, retired Fugro

About the Society for Underwater Technology

The SUT was founded to promote the further understanding of the underwater environment and to encourage:

Cross-fertilization and dissemination of ideas, experience and information between workers in academic research, applied research and technology, industry and government.
Development of techniques and tools to explore, study and exploit the oceans.
Proper economic and sociological usage of resources in and beneath the oceans.
Further education of scientists and technologists to maintain high standards in marine science and technology.