MAR8051 : Design and Manufacture of Pipelines, Risers and Umbilicals

Semester 1 Credit Value: 10
ECTS Credits: 5.0


A1. To explain the basis, significance and application of stress analysis to buckling and fatigue of offshore pipelines, risers and umbilicals.
A2. To gain professional skills in the design of pipelines, umbilicals and riser systems.
A3. To explore various manufacturing issues in subsea systems.
A4. To gain an understanding of relevant international design codes.

Outline Of Syllabus

1. General principles of stress analysis (6 hours): An introduction to the principles of stress analysis and the principles of reliability based design, finite element analysis.
2. Yielding, buckling and fatigue (3 hours): Analysis techniques for yielding, buckling and fatigue of pipelines, risers and umbilicals. Fatigue analysis will include S-N and fracture mechanics approaches and the principles of cycle counting.
3. Manufacture of rigid pipeline (3 hours): The manufacturing process for rigid pipeline will be explained, including UOE and ERW pipe, the methods for coating and concrete coating pipelines and the welding processes employed onshore and offshore.
4. Design and manufacture of risers (6 hours): An explanation of the design issues associated with risers and the manufacturing processes involved including catenary-chains and heavy cables, neutral buoyant cables
5. Design and manufacture of umbilicals (6 hours): An explanation of the design issues associated with risers and the manufacturing processes involved.
6. Site visit (3 hours): A visit will be arranged to either a rigid pipe, riser or umbilical manufacturer in the region.

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Guided Independent StudyAssessment preparation and completion115:0015:00Coursework
Guided Independent StudyAssessment preparation and completion112:0012:00Examination Revision
Guided Independent StudyAssessment preparation and completion12:002:00Examination
Scheduled Learning And Teaching ActivitiesLecture83:0024:00Including tutorials
Guided Independent StudyDirected research and reading144:0044:00Includes background reading and review of lecture notes for a full understanding of material
Scheduled Learning And Teaching ActivitiesFieldwork13:003:00Site visit
Teaching Rationale And Relationship

Directed study and the formal lectures will provide an effective method for students to assimilate the knowledge content, define the scope of the syllabus topics and attain the required knowledge and skill outcomes (ISO1-2). The directed study allows students to work through material at their own pace allowing them to develop an in-depth understanding of the material (IKO1-4).

Assessment Methods

The format of resits will be determined by the Board of Examiners

Description Length Semester When Set Percentage Comment
Written Examination1201A100N/A
Assessment Rationale And Relationship

The exam tests acquisition of a clear general knowledge of the subject plus the ability to think and analyse a problem quickly, to select from and to apply both the general knowledge and detailed knowledge of aspects of the subject. The exam also assesses problem solving skills, the ability to work unaided and to communicate clearly and concisely in writing. The Graduate Skills Framework entries indicated as 'A' are also assessed in this way.

Reading Lists