Page 520 - Pipelines and Risers

LCC Modeling as a Decision Making Tool in Pipeline Design 487

25.6.10 Step 9- Initial Cost
The initial cost of the method by which the pipeline is stabilized can be found universally
among pipeline design consultants and operators.

Table 25.8 Initial Costs.

25.6.11 Step 10- Comparison of Life-Cycle Cost
The final product of this analysis will render a range of on-bottom stability methods along
with their potential Life-Cycle Costs, allowing an informed decision to be reached.

Table 25.9 Combination of Consequence Outcomes.

Combination Unplanned Maintenance Environment
Upper Upper
UOOeT bW.3
II 3 I Lower I Lower II
4 Lower

25.7 References
1. ASME B31G (1993) “Manual for Determining the Remaining Strength of Corroded
Pipes”, American Society of Mechanical Engineers
2. Bai, Y., Sorheim, M., Nodland, S. and Damsleth, P.A. (1999) “LCC Modeling as a
Decision Making Tool in Pipeline Design”. OMAE’99.
3. Bea, R. (1994) “The role of human error in the design, construction and reliability of
marine structures”, Ship Structure Committee, USA.
4. Bea, R. (1998) “Human and organization factors in the safety of offshore structures”, in
Risk and reliability in Marine Technology, edited by C. Guedes Soares, Published by
A. A.B dkema.
5. Bea, R. et al. (1996) “Life-cycle reliability characteristic of minimum structures”
OMAE’96.
6. Cui, W., Mansour, A.E, Elsayed, T. and Wirsching, W. (1998) “Reliability based quality
and cost optimisation of unstiffened plates in ship structures”, Proc. of PRADS ’98,
Edited by M.W. C. Oosterveld and S. G. Tan, Elsevier Science B.V.
7. deWaard, Lotz U. (1993) “Prediction of COz Corrosion of Carbon Steel”, CORROSION
‘93, paper no. 69
8. Fabrycky, W.J. and Blanchard, B.S. (1991) “Life-Cycle Cost and Economic Analysis”,
Prentice-Hall
9. Langford, G. and Kelly, P.G. (1990) “Design, Installation and Tie-in of Flowlines”, PK
Report No. 4680.1