SUBSEA PIPELINE DESIGN AND CATHODIC PROTECTION ANALYSIS AT MADURA STRAIT
Indonesia has abundant natural resources, one of which is oil and gas. The need for oil and natural gas is still the main fuel requirement for humans. Therefore, oil and gas exploration activities will continue to be carried out for the sake of human needs that must be met. One of the oil and nat...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/68047 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Indonesia has abundant natural resources, one of which is oil and gas. The need for
oil and natural gas is still the main fuel requirement for humans. Therefore, oil and
gas exploration activities will continue to be carried out for the sake of human needs
that must be met. One of the oil and natural gas exploration facilities is an
underwater pipeline that functions as a means of transporting fluids from the
offshore platform.
Prior to the subsea pipeline construction process, the design and analysis of the
subsea pipeline construction will be carried out. The first stage is pipe wall
thickness analysis using the DNVGL-ST-F101 standard. This analysis includes the
minimum thickness of the pipe wall thickness to withstand excessive internal
pressure and local buckling pressure which includes system collapse pressure and
propagation buckling pressure. Then choose the pipe wall thickness that meets the
DNVGL-ST-F101 criteria. The next analysis is the pipe stability analysis using the
DNVGL-RP-F109 standard and this analysis aims to determine the stability of the
underwater pipe when subjected to environmental loads in lateral and vertical
directions. The results of the stability analysis of the submarine pipeline are used
for the analysis of the underwater pipeline installation. This analysis uses OFFPIPE
and MOSES software, then the configuration of the roller, stinger, and tensioner
along with the pipe tension during installation is obtained so that it does not exceed
the allowable stress. The uneven contour of the seabed along with the continuous
movement of the seabed makes the pipe not fully touch the seabed and free span
occurs. This free span analysis uses the DNVGL-RP-F105 standard and the
allowable free span length is obtained. Next is an analysis of the cathodic protection
of submarine pipes using the DNVGL-RP-F102 and DNVGL-RP-B401 standards
and the value of the distance between the anodes is 300 meters, the number of
anodes is 36, and the anode mass is 876.97 kg.
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