Lessons Learned o Operations experience should be retained and utilised in a correct and positive manner. As the operators of the facilities Company had the greatest level of knowledge of what was there and how it might be dealt with. o Preparation of the platform for removal is an Operator responsibility. The requirement for a very robust preparation has to be done prior to hand over of the platform for decommissioning. o There is a requirement for engineering and investigation that is on a par with that required for construction – this is especially so in the heavily legislated North Sea environment. o The records for the entire installation have to be maintained even when the structure and equipment is substantially unused. In the case of MCP-01 the catalogue for the redundant elements had been allowed to lapse and the reliability of information gave rise to problems and extra work. All the information was probably there but could have been more accessible. o Some pre-qualification of new techniques should be conducted. The additional engineering that might be involved in using such can outweigh the perceived benefits o Irrespective of the contractual arrangements, it is essential that the participants provide a comprehensive reporting of all technical, contractual and safety matters. o Planning is a major issue. The essence of decommissioning planning is a clear understanding of the local environment and how the various stages of the work relate to each other. The sequence is not as logically obvious as most constructs and so it cannot be done as a remote activity. This is especially so for the older installations. o The availability and reliability of cranes is something that was recognised from the outset as critical to progress. Despite this awareness they were a source of problem throughout the topsides work o The problems of lay down and storage places on any offshore installation should be understood. Given the large quantities of equipment, materials handling and additional emergency equipment needed for a removal project such as this almost all current installation offshore will have this as a problem. The solution has to be engineered „up-front‟ o Any offshore project has to be worked around the availability of the most significant tools. In this case it is offshore crane facilities – „the heavy lifters‟. This is a very limited market in terms of available players. In the next few years when we start to see more of these installations being considered for removal the market for heavy lift services will become even tighter. The planning will revolve around them. o The labour pool is limited. Despite the potential attraction of decommissioning as a nice to have‟ on the CV few engineers have shown that they want to make a career of it. The real problem of decommissioning is that it needs genuine multi-skilling. o Under the Step Change in Safety banner there was a very useful document produced „Offshore Decommissioning Learning‟. This was produced directly on the back of the 2006 intervention at MCP01 and captures many of the experiences.