QUANTITATIVE ANALYSIS FOR REMAINING STRENGTH OF DEGRADATED PIPELINE CASE STUDY : PETANI-DURI PIPELINE
Oil and gas production from offshore (offshore) and an increase in the last ten years. This means increased offshore technology pipeline. At this time of marine technology pipeline reached more than 6000 feet. Often the cost of offshore pipelines more than the cost of drilling and production costs....
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/15166 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Oil and gas production from offshore (offshore) and an increase in the last ten years. This means increased offshore technology pipeline. At this time of marine technology pipeline reached more than 6000 feet. Often the cost of offshore pipelines more than the cost of drilling and production costs. Thus, the development and maintenance of offshore pipelines has become an important topic to streamline costs of oil and gas production from offshore (offshore) and deep sea.. <br />
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In this thesis, the analysis is based on Corroded Pipe Recommended Practice DNV-RP-F101 to determine the remaining strength of corroded pipe riser with Chevron case srudi West Seno-riser pipe. This analysis is based on residual strength of corrosion data obtained from the ultrasonic test conducted in 2008, data from pipeline operations, dimensional data, and data pipe material. The analysis is based on the limitations contained in the Recommended Practice DNV-RP-F101 Corroded pipes by using the auxiliary program that has been made.. <br />
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From the results of analysis of residual strength of the riser pipe Santan-FPU is concluded as follows on the maximum allowable 3375 psi, 59.5 km oil pipeline riser x 12 "FPU-Santan still safe to operate critical point with the highest corrosion depth on the IP ID .- 15 (58.4 km absolute location of the terminal coconut milk), where t 22% defect depth with the allowable pressure (pcorr) based on part-RP-F101 and DNV A safe working pressure (psw) based on the DNV-RP-F101 part B of 6208 psi and 6221, 5 psi (reduced to 3% of initial strength). The maximum allowable 3375 psi, 59.5 km of gas pipe riser x 12 "FPU-Santan still safe to operate. The critical point with the highest corrosion depth on the ID IP-16 (58.2 km absolute location of the terminal coconut milk), where t 21% defect depth with pressure allowed (pcorr) based on the DNV-RP-F101 A and a safe working pressure ( psw) under section B DNV-RP-F101 from 6211.36 and 6224.46 psi psi (2.9% reduction of strength) |
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