PIPELINE DEPTH ROUTE DESIGN WITH HORIZONTAL DIRECTIONAL DRILLING (HDD) UNDER THE KALIGARANG RIVER
Currently, the need for natural gas as energy source continues to increase. Therefore, distribution from production well is needed. The method for this distribution is using pipeline. Installation for pipeline of course has a variety of methods. One of the methods thath became the main highlight...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/67459 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Currently, the need for natural gas as energy source continues to increase. Therefore,
distribution from production well is needed. The method for this distribution is using
pipeline. Installation for pipeline of course has a variety of methods. One of the methods
thath became the main highlight in this research is Horizontal Directional Drilling (HDD).
This method is done by making hole in the ground then the pipe is pulled using HDD rig
machine.
The case study for this research is crossing the Kaligarang river in Semarang. The
outputs of design process are determining suitable route for HDD, calculating stress, analyze
pipe between LSAW and SSAW, and coating thickness. This research begin with calculating
the theoretical load and stress. After that, Ansys is used to determine the stress that occurs
in the pipe and coating. The resulting stress then compared with criterias for the HDD process
during installation, operation, and hydrotest.
There are two designs that can be selected from this case. It should be noted that these
options arise as a result of two bending stress criterias. The stress that occurs in both options
has met the specified criteria. The results of the calculation show that SSAW pipe can be
selected. The coating thickness (PE) that can be propesed is 2.5 mm with minimum safety
factor of 2.27. |
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