SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION | pipelineinte...
Page 1 of 4
pipelineintegrity
November 21, 2011
SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION
Filed under: Pipeline Engineering,Pipeline Integrity Management,Pipeline Maintenance & Operations
pipelineintegrity @ 7:08 am
Rate This
Sparing is one of the most important aspect in executing the Pipeline Installation Project.
Some material is Long lead items which is need time from requesting to Delivering the materials. We
can imagine how busy or might be crazy we are if the materials are not sufficient, or in different
situation, our boss will come to our desk and got mad, if we bought too many material and spent a lot
of money for that. We can conclude that material to be purchased shall be sufficient enough but not
over.
Several aspect should be considered in determining Spare Linepipe Material for Contingency
especially for Offshore Pipeline Installation, it include but not limited to:
Route Deviation
Its hard to find exact value the length of the pipe due to Profile of the seabed. The
Deviation can be Horizontally or Vertically. The common way to capture this issue is by
taking the percentage of the total length as deviation based on statistical data.
Its also need to make a different treatment for Short Pipeline and Long Route
of Pipeline.
Wet Buckle Contingency
If Wet Buckle happen, the pipeline will be abandoned and the buckle section to the
Pipehead will be removed. We have to take into account this scenario. The question then
how many wet buckle is allowed to happen? The answer may vary for any projects, Its
depend on the Environment, the lay barge capacity, etc.
Abandon and Recovery Head
After pipe is abandoned, the process next is jointing the pipe. During jointing the pipe it
probably fail, and 1 section length shall be removed. So I recommend to add 1 Joint
Contingency for each abandoned head.
Qualification for Welding Procedure and Welder
Welder is a human, and welding Procedure also has limitation.
Follow
Welds are qualified for a thickness of 20% against the qualification wall thickness, and
each weld qualifications require some additional pipe joints
Follow
http://pipelineintegrity.wordpress.com/2011/11/21/sparing-philosophy-for-offshore-pipelin... 1/23/2014
SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION | pipelineinte... Page 2 of 4
Coating Trial and Pigging Calibration
at least 1 pipe joint is required for Coating trial and Pigging Calibration.
Damage during Transporting, Handling and Storing
Spare quantity for any possible damage (loading & unloading, transportation,
coating) is required
Provision of Snake Lay
If there is Lateral buckling shall be anticipated, the snake lay method is commonly used
to anticipate Lateral Buckling. Additional pipe length also required for this method.
About these ads
Share this: Print Email Facebook LinkedIn Twitter Google
Like this: Like Loading...
Related
ENHANCING INTERNAL CORRO LONG-TERM INVESTMENT IN C The Role of Inspection During the
In "Pipeline Inspection" In "Pipeline Inspection" In "Pipeline Inspection"
Leave a Comment
Leave a Comment
No comments yet.
RSS feed for comments on this post. TrackBack URI
Leave a Reply
Enter your comment here...
Follow
Follow
http://pipelineintegrity.wordpress.com/2011/11/21/sparing-philosophy-for-offshore-pipelin... 1/23/2014
SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION | pipelineinte... Page 3 of 4
Recent Post
ENHANCING INTERNAL CORROSION DIRECT ASSESSMENT PROGRAMS
FOR WET GAS/DRY GAS PIPELINES
LONG-TERM INVESTMENT IN CORROSION MANAGEMENT WILL GENERATE
GREATER REWARDS
PIPELINE INTEGRITY: ITS NOT JUST HARDWARE
The Role of Inspection During the Lifetime of a Pipeline An Overview of Recent
Technology Advance
ASME B31.4 Acceptable Pipeline Repair Methods (non-indented, non-wrinkled and non-
buckled pipe)
List of countries by total length of pipelines
Pipeline transport Wikipedia Article
San Bruno fracture images
CONCRETE WEIGHT COATING FOR PIPELINE
SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION
Categories
Pipeline Engineering
Pipeline Inspection
Pipeline Integrity
Pipeline Integrity Management
Pipeline Maintenance & Operations
Pipeline Regulations, Code, and Standards
Uncategorized
Pages
About
Archives
Select Month
Search
Search
Email Subscription
Enter your email address to subscribe to this blog and receive notifications of new posts by
email.
Join 25 other followers Follow
Follow
http://pipelineintegrity.wordpress.com/2011/11/21/sparing-philosophy-for-offshore-pipelin... 1/23/2014
SPARING PHILOSOPHY FOR OFFSHORE PIPELINE INSTALLATION | pipelineinte... Page 4 of 4
Sign me up!
The Rubric Theme. Blog at WordPress.com.
Follow
Follow
http://pipelineintegrity.wordpress.com/2011/11/21/sparing-philosophy-for-offshore-pipelin... 1/23/2014
