AdvancePipeliner

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AdvancePipeliner

bathyTools

bathyTools is a tiny program written in Visual Basic .NET 2010 express edition for editing two-dimensional bathymetry data. It reduces number of data points by applying three different filters, duplicate data remover, merging small lines, and merging two successive lines with small angle. It also provides user data editing as well as measuring the difference between original and modified seabed.

How to use it?

bathyTools is a simple tool. Following bullet points describe the function of each of bathyTools components shown by red numbers.

bathyTools

  1. bathymetry data filtration is started by importing bathymetry data. the data file should be in Excel csv file format,
  2. The imported data then will be shown in tabular format,
  3. and in graphical representation,
  4. By checking this option, duplicate data will be removed from the original data,
  5. By checking this option, short lines with length less than the user defined value will be removed from the original data,
  6. By checking this option small angles less than the user specified value will be removed from the original data,
  7. By checking this option filter will be applied on the modified data not on the original data. this option is used when different filtration stages are required,
  8. Press to apply the requested filter on the bathymetry data,
  9. If the user performed some manual modification on the data, this button updates the chart (chart will be updated automatically after applying filters),
  10. By moving mouse in chart area, the KP of the location that has been pointed by mouse cursor is shown here,
  11. By moving mouse in chart area, the water depth of the location that has been pointed by mouse cursor is shown here,
  12. Distance between two selected points is shown here (left mouse button),
  13. User can specify x-axis and y-axis bound and press update scale to zoom and pan the chart,
  14. To quit from the software,
  15. To save data in csv format.

 

License

This utility is released as freeware. You are allowed to freely distribute this utility via floppy disk, CD-ROM, Internet, or in any other way, as long as you don't charge anything for this. If you distribute this utility, you must include all files in the distribution package, without any modification !
Be aware that selling this utility as a part of a software package is not allowed !

Disclaimer

The software is provided "AS IS" without any warranty, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The author will not be liable for any special, incidental, consequential or indirect damages due to loss of data or any other reason.

Feedback

If you have any problem, suggestion, comment, or you found a bug in my utility, you can put a comment below.

Download Links:

bathyTools v0.1

Sample seabed

Last Updated on Sunday, 28 November 2010 23:17
 

Corrosion Monitoring and Systems

 There are many purposes to the application of corrosion monitoring in pipeline systems.  These purposes generally include one or more of the following:

  • Diagnosis of corrosion problems;
  • Monitoring of corrosion control methods (e.g. inhibition, pH control, etc.);
  • Advanced warning of system upsets leading to corrosion damage;
  • Invoke process controls;
  • Determination of inspection and/or maintenance schedules;
  • Estimation of used and remaining service lifes.

The application of corrosion monitoring techniques can be very important when the consequences of internal corrosion are considered. for example, unscheduled shutdowns, loss of production and hence loss of revenue; loss of capital equipment, hazard to personnel, and pollution of the environment may be occured in pipeline systems without adequate corrosin monitoring systems.

The rate of corrosion dictates how long components can be usefully and safely operated.  The measurement of corrosion and the action to remedy high corrosion rates permits the most cost effective plant operation to be achieved while reducing the life-cycle costs associated with the operation.  Corrosion monitoring techniques can help in several ways:
  • By providing an early warning that damaging process conditions are developing;
  • By revealing the correlation between changes in process parameters and their effect on system corrosivity;
  • By diagnosing a particular corrosion problem, identifying its cause and the rate controlling parameters, such as pressure, temperature, pH, flow rate, etc.;
  • By evaluating the effectiveness of a corrosion control/prevention program;
  • By providing management the information necessary to relate maintenance requirements to ongoing conditions of operation.

Monitoring Types

The main techniques, which are available for corrosion monitoring, are as follows:

  • Weight loss coupons;
  • Electrical resistance (ER) probs;
  • Linear Polarisation Resistance (LPR) probes
  • Hydrogen probes;
  • Bacteria probs;
  • Chemical analysis;
  • Ultrasonic
  • Intelligent Spools

The extent and type of corrosion monitoring should be established during front end engineering design of pipelie.


Data Integration

Real-time corrosion measurements refer to highly sensitive measurements, with a signal response taking place essentially instantaneously as the corrosion rate changes.  Numerous real-time corrosion monitoring programs in diverse branches of industry have revealed that the severity of corrosion damage is rarely uniform with time.  Complementary data from other relevant sources such as process parameter logging and inspection reports can be acquired together with the data from corrosion sensors, for use as input to the management information system.

Last Updated on Sunday, 10 October 2010 14:41
 

Transferring to CMS

Transferring to CMS

Last Updated on Wednesday, 02 June 2010 21:44
 

Sweet Corrosion Rate in Oil and Gas Pipelines

Corrosion Determination

The principal method of sweet corrosion assessment in the pipelines is as follows [1]:

Corrosion Rates

The not corrected corrosion rate in pipelines containing sweet hydrocarbon can be calculated using the following equation:

Where,

?             =    corrosion rate (mm/yr)

t             =    temperature in ºC.

FCO2 =    fugacity of CO2 in bar.

=     partial pressure of CO2 (in bar) x fugacity coefficient

fugacity coefficient     =     10 (0.0031 - 1.4 / (t + 273) x total pressure)

The following factors have been derived to adjust the corrosion rates determined from above equation, by de Waard & Smith [2], dependent upon the process stream constituents.

Last Updated on Thursday, 03 June 2010 01:02
 

Sandy Soil Axial Resistance On Buried Section of a Pipeline

The sandy soil axial resistance on a buried section of a pipeline may be calculated using the following equation [1, 2].

Where,

Far is the soil axial resistance including effect of backfill effect

D is the pipeline outside diameter

?r is the friction coefficient between exposed pipeline and sand

Last Updated on Thursday, 03 June 2010 01:01
 
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