Page 280 - Pipeline Risk Management Manual Ideas, Techniques, and Resources

131257

Stations and Surface

Fac i I it i es

Contents Equivalent surface area 131265
External forces index 131266
Corrosion index 13’267
T. Background 13i257 Design index 131268
Types of facilities 13125Y Incorrect operations index 131268
11. Station risk assessment 131260 Leak impact fdctor 13/27 1
Scope 131260 I? Modeling ideas I 131275
Sectioning 131260 VI Modeling idcas 11 131277
Data requirements 13/26 1 VI1 Modeling ideas 111 131278
Model design 131263 1X Example ofriskmanagemcnt application 131286
Weightings 131263 X Companng pipelines and station? 131287
Process 131264 XI Station nskvaiiables 131288
HI. Risk assessment model 131264
Risk model components I31265

1. Background that accounts for the differences in risk and still allows direct
comparisons among various system components. This chapter
Most pipelines will have surface (above ground) facilities in outlines some techniques for such risk assessements.
addition to buried pipeline. These include pump and compres- Many station facilities employ design techniques, such as
sor stations, tank farms, as well as metering and valve loca- piping corrosion allowances, reliability-based equipment
tions. Such facilities differ from pipe-only portions of the maintenance, and best preventive maintenance practices.
pipeline in significant ways an4 yet, must be included in most Facilities often include pieces of large rotating equipment (e.g.,
decisions regarding risk management. Typical operating and compressors, pumps, motor operated valves), as well as sophis-
maintenance processes involve prioritizing work on tanks, ticated electronic monitoring equipment (e.g., SCADA, pro-
pumps, and compressors with ROW activities. Many modem grammable logic controllers, leak detection, on-site control
risk assessments are including surface facilities in a manner centers, etc.).