The objective of this workshop is to review ice scour and environmental effects relevant to the safe design and operation of marine pipelines in northern offshore regions. With the continued development of several arctic marine pipeline projects in ice scoured areas, this second workshop is a response to a continued demand for such an information exchange. The deliverables of this workshop will be a forum for presentation, discussion, interaction and education about current knowledge and understanding of ice scour and arctic marine pipeline issues and a published proceedings.

A second workshop on ice scour and arctic marine pipeline issues will be held at the 15th International Symposium on Okhotsk Sea and Sea Ice from 6 to 9 February 2000. The general aims of the workshop are to continue the review of ice scour effects relevant to the safe design and operation of marine pipelines offshore, and to address the issues of damage control, oil spill cleanup and risk management. The 3-day workshop will be an unprecedented opportunity to exchange and critically assess the information gained from studies to date. Invited presentations will be given by representatives from oil & gas industries, regulatory authorities, research institutes and consultants from both the Russian Federation, NATO and Asian countries. The workshop will identify directions for future research and further the development of practical recommendations for an economic and environmentally acceptable pipeline design methodology.

The workshop has already received over 10 firm, and 25 more tentative, commitments from scientists and engineers from Canada, Japan, Norway, Russia, UK and USA. The Minerals Management Service, C-CORE, OSCORA and the Sakhalin Oil & Gas Institute (SOGI) are jointly organizing this second workshop. The workshop will be held jointly with the 15th International Symposium on Okhotsk & Sea Ice in Mombetsu Hokkaido, Japan. Hokkaido is a very appropriate venue because of the Russian offshore oil and gas developments off its north coast; the relative ease of Russian travel (and therefore participation) to the workshop; the traditional symposiums focus on environmental issues; the symposiums offer to host the workshop; and the relative success of the 1st ISAMP workshop at this venue.

About 25 keynote speakers have been invited by the executive committee. The workshop has been widely advertised in the second half of 1999 by an 800-flyer e-mailout and adverts at appropriate conference venues and bulletin boards. The workshop attendance will be open to all symposium attendees. The workshop is expected to involve about 75 international participants.

The 6-person workshop executive committee is directed by Dr Andrew Palmer of Cambridge University, a world authority on pipelines and Dr Astafiev of Rosneft-Sakhalinmorneftegaz and Sakhalin Oil & Gas Institute, an authority on sea ice. The workshop organising committee comprises more than 12 members with representatives from oil & gas industries, regulatory authorities, research institutes and consultants. The current members of the executive and organising committees are listed below.

To receive further information on the Ice Scour and Arctic Marine Pipelines Workshop, please contact:

Dr. Ryan Phillips, C-CORE, Memorial University, St. John's, Newfoundland, Canada, A1B 3X5
                Phone: +1 709 737 8354, Fax: +1 709 737 4706, E-mail: ryanp@morgan.ucs.mun.ca

For details regarding symposium registration, domestic transportation, accommodation and field trip please return the attached Registration Form to the address shown below.

9.00 - 10:45 Place: Garinko (1F)

9.00-9.55 Offshore Oil Development in the Alaskan Arctic: Who Bears the Risk

WORKSHOP ON OIL SPILL & MARINE ENVIRONMENT (Joint session)

10:00-10:15 Case of oil recovery for the oil spill accident by "Nakhotoka" in the Japan

Kazuko Seo

10:15-10:40 Oil Spill on Sakhalin Shelf: Problems and Solutions (in English)

Erwin Kalinin (Sakhalin Oil & Gas Institute)

10.45-11.00 Break

2nd WORKSHOP ON ICE SCOUR AND ARCTIC MARINE PIPELINES

11.00 - 12.30

Current State of Knowledge and Problem Definition

Alaskan Arctic Pipeline Workshop Summary

Charles Smith, Minerals Management Service

Behaviour of Oil in Ice.

12.00 - 13.30 Lunch

13.30 - 17.00 ISAMP Workshop

Oil Spill Response in Ice Infested Waters

Ice Scour Morphology, Degradation Processes and Seabed Impact Rates, Resolute Bay, Cornwallis Island, Canadian Central Arctic

15.00 - 15.30 Break

Seashore Morphology and Lithodynamic of the North-East Sakhalin Coast

G Surkov, Amolotoly Polomoshnov ,

Can Seabed Gouge Survey Data Be Applied to Prediction of Maximum Depths of Ice Keel Penetration? Igor Stepanov Arctic & Antarctic Research Institute

Measuring Sub-Scour Soil Displacements in Different Soil Types Using Examples from the Geological Record

C.M.T. Woodworth-Lynas

9.00 - 12.00 ISAMP Workshop - Ice Limitations

Crushing failure during ice-structure interaction

Ice Imposed Limits to Ice Scouring

Behavior of ridge ice at the time of ice scouring

10.30 - 11.00 Break

Comparison of Ice Strength and Scour Resistance

Discrete Element Simulation of Ridge Keel Resistance during Scouring

12.00-13.30 Lunch

13.30 - 17.00 ISAMP Workshop

Deformation Analysis of Strain-Rate Sensitive Clays Subject to Ice-Scouring Via Schwartz-Christoffel Transform

ISAMP Workshop - Pipeline Considerations

Method a Choice of an Optimum Burial Depth Profile of Underwater Pipelines on the North-East Shelf of Sakhalin

Response of Buried Arctic Marine Pipelines to Ice Scour Events

S Kenny, Ryan Phillips . R McKenna & J Clark, C-CORE

15.00 - 15.30 Break

Welding Challenges for Strain-Based Design

Alaska State Pipeline Coordinators Office

MORICE (Mechanical Oil Recovery in Ice Infested Waters) (Probably cancelled)

Presentations from the floor.

Open Discussion

Wed 9 February 9.00 - 12.30 Place: Sea Ice (3F)

Discussion Sessions led by Jack Clark and Andrew Palmer

Discussion Summaries and Definition of Future Directions & Research Needs

Adjourn 12.30

The schedule for the workshop is as follows:

31 May 1999	Mailout preliminary workshop announcement
15 November	Mailout final workshop announcement, including technical program
15 December	Receipt of paper abstracts
6-9 February 2000	Workshop
15 April	Publication of workshop proceedings

Ice scour of the seabed is common in northern offshore regions. This natural hazard is a serious threat to the integrity of structures, particularly to oil and gas production pipelines, that are exposed on or buried in the seabed. The loss of integrity may cause loss of life and significant marine pollution from hydrocarbons in these environmentally sensitive coastal zones.

Each year, sea ice pressure ridges scour the Beaufort Sea floor producing scour marks with mean dimensions of 0.5 m deep and 26 m wide in water depths of 10 to 40 m. Gouge up to 2.2m deep and 40m wide have been reported in Baydaratskaya Bay of the Russian Arctic. Scouring icebergs threaten seabed installation, notably on the eastern Canadian continental shelf and in the Norwegian/Russian Barents Sea. Gouge marks off the north and east coast of Sakhalin Island, Russia, are made by first year sea ice stamukhi during spring breakup. With new oil and gas developments in these and other such regions a safe method of product transportation must be chosen. Pipelines and seafloor wellheads are viable transport options if the threat of damage by ice scour can be mitigated.

Ice scour and pipeline interaction studies have been undertaken in northern countries including those of the Norwegian Geological Institute, the Geological Survey of Canada, the US Geological Survey and C-CORE. Their ongoing Pressure Ridge Ice Scour Experiment (PRISE) has the specific goal of developing the capability to design pipelines and other seabed installations in regions scoured by ice. PRISE, sponsored by major international oil companies, North American government bodies and others, has included phenomenological (field) studies, theoretical studies, and physical experiments. Similar ice scour studies have also been progressed in Russia by the Sakhalin Oil & Gas Institute, the Arctic and Antarctic Research Institute and others.

Pipeline and seafloor facilties are now being either considered, developed or operated in offshore regions subject to ice scouring, including the Beaufort Sea, Prudhoe Bay, the Grand Banks, Lake Erie, and offshore Sakhalin Island. There have been 5 previous related workshops, the first 4 sponsored mainly by the Canadian government in 1982, 1986, 1990 and 1993 respectively. The fifth was the 1st Ice Scour and Arctic Marine Pipelines workshop.

C-CORE organised the first Ice Scour & Arctic Marine Pipelines workshop in February 1998 at the time of the 13th International Symposium on Okhotsk Sea and Sea Ice in Hokkaido, Japan. This workshop was attended by up to 50 international participants. The workshop was sponsored by Minerals Management Service with the Geological Survey of Canada, Exxon Neftegas and BP Exploration. The proceedings of that workshop are available from C-CORE.

The first workshop reviewed and discussed ice scour effects relevant to the safe design and operation of marine pipelines offshore Canada, Alaska and the Russian Federation, including Sakhalin Island and Baydaratskaya Bay. The review comprised 14 technical presentations over a 1.5-day period. The general aims of that workshop were to exchange information through the review of progress in understanding the mechanics of ice keel scour, the ability to model the scouring process and the application of models to the issue of pipeline burial and protection.

Workshop Executive Committee:

Workshop Technical Committee (members arranged by country)

Travel (Note important change to travel recommendation)

Workshop participants should fly direct to Mombetsu (MBE) via Sapporo-Chitose Airport (SPK). There is now no need to change airports in Sapporo, as in previous years. It takes about 10 mins from the new Mombetsu Airport (opened on 11 November 1999) to downtown Mombetsu by airport shuttle bus. The cost for the transportation to and from Mombetsu airport to town is Yen 300 each way

The daily flight schedule between Sapporo-Chitose and Mombetsu in February 2000 is as follows:

Mombetsu (12:45) to Sapporo/Chitose (13:30) (by Air Nippon ANK138)

The discount airfare (special for the conference participants) is Yen 9,510 one way through the Symposium secretariat. They will make your flight booking between Sapporo-Chitose and Mombetsu on your request. The regular price is Yen 15,850.

**If you have already booked to fly to Memanbetsu (MMB), Hokkaido from Tokyo Haneda (TYO), please contact the Symposium secretariat so that they can arrange transportation for you, as there is no airport shuttle bus service between Memanbetsu Airport and Mombetsu.

Airlines serving Memanbetsu (MMB) are:

All Nippon Airways	http://svc.ana.co.jp/eng/index.html
Japan Air Systems	http://www.jas.co.jp/e_jashom.htm
Japanese Airlines (JAL)	http://www.jal.co.jp/ domestic flight information is in Japanese
JAL domestic flight information in English from:	http://www.japanair.com/journey/travelreser/Default.htm

The symposium organisers can arrange accommodation at the Central and Prince hotels for about Yen 7,500/night including breakfast. Accommodation is also available of the University of Hokkaido guesthouse. It is about 15 minutes walk from the hotels and guesthouse to the workshop venue.

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