High-Pressure Natural Gas Pipeline in Geohazardous Region of Papua New Guinea Sustains M 7.5 Earthquake: Key Factors of Successful Outcome

2021 ◽  
Author(s):  
Bob Albrecht ◽  
John Calame ◽  
Mike Cook ◽  
Ignacio Falcon ◽  
Patrick Lee
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Papua New Guinea ◽  
New Guinea ◽  
Gas Pipeline ◽  
Successful Outcome ◽  
Key Factors ◽  
Natural Gas Pipeline

High-Pressure Natural Gas Pipeline in Geohazard Region of Papua New Guinea Sustains Mw7.5 Earthquake: Key Factors of Successful Outcome

2020 ◽  
Author(s):  
Robert Albrecht ◽  
John Calame ◽  
Mike Cook ◽  
Ignacio Falcon ◽  
Patrick Lee
Keyword(s):  
Natural Gas ◽  
Papua New Guinea ◽  
Joint Venture ◽  
Leading Edge ◽  
New Guinea ◽  
Host Community ◽  
Successful Outcome ◽  
Pipe Material ◽  
Key Factors ◽  
Gas Conditioning

Abstract ExxonMobil PNG Limited (EMPNG) operates the Papua New Guinea Liquefied Natural Gas Project (PNG LNG), an integrated LNG project comprising wellpads, gathering lines, gas conditioning plant, onshore and offshore export pipelines, liquefaction plant and marine terminal in Papua New Guinea (PNG). The PNG LNG project is a joint venture with participation by ExxonMobil, Oil Search Limited (OSL), Kumul Petroleum, Santos, JX Nippon Oil and Gas Exploration and Mineral Resources Development Company, and began production in 2014. The highlands of PNG presents a challenging physical environment, with high rainfall, steep terrain, active tectonics and seismicity, and ongoing landsliding and erosion. The PNG LNG onshore gas and condensate pipelines confront these physical challenges by having to traverse approximately 150 km of steep volcanic, mudstone and Karstic highlands along the Papuan Fold and Thrust Belt, the modern leading edge of active mountain-building, plus an additional 150 km in Karstic lowlands. During design, construction and operations of the pipelines, ExxonMobil has addressed these challenges in partnership with the engineering, construction and specialist consulting communities. On February 25th, 2018 (UTC) a Magnitude 7.5 earthquake struck the PNG highlands. The event, along with its approximately 300 aftershocks, caused widespread community impact, landsliding and damage to over 1000s of km2, and was centered directly under the highlands portion of the PNG LNG pipelines. The pipelines however, did not lose containment or pressure, and, following inspections and repairs to the PNG LNG gas conditioning plant, PNG LNG production was restored within seven weeks of the main shock. This technical paper and companion oral presentation discuss the key factors of this successful outcome, in particular the sustained condition of the gas and condensate pipelines. Contributing factors to the pipeline’s success include route selection, pipe material specification, early commitment to field studies, careful assessment of geohazards, high awareness of off-ROW community impacts, micro-routing during construction, and active geohazard management during startup and operations. The paper demonstrates that, with respect for the host community, thoughtful engineering, careful construction and ongoing surveillance, pipelines can be safely and successfully designed, constructed and operated in remote and extreme geohazardous environments.

Evaluation of Harm Effect Distances after High-Pressure Natural Gas Pipeline Leakage

ICPTT 2013 ◽  
2013 ◽  
Author(s):  
Xin Wang ◽  
Huabing Zhang ◽  
Wanzhou Cheng ◽  
Honglong Zheng
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Pipeline ◽  
Natural Gas Pipeline

Design and Performance of High-Pressure Blowoff Silencers

1971 ◽  
Vol 93 (2) ◽  
pp. 695-702 ◽  
Author(s):  
Cecil R. Sparks ◽  
D. E. Lindgren
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Field Data ◽  
Fluid Dynamic ◽  
Gas Pipeline ◽  
Noise Generation ◽  
Test Results ◽  
Natural Gas Pipeline ◽  
And Performance

Through the application of fluid dynamic and acoustic theory, the noise generation of a high pressure blowoff can be approximated. The effects of silencer configurations can likewise be predicted through the application of pertinent field data taken to define performance of the silencer components. This paper describes recent test results and their application to improved silencer design for natural gas pipeline applications.

scholarly journals A study of hydrate plug formation in a subsea natural gas pipeline using a novel high-pressure flow loop

2013 ◽  
Vol 10 (1) ◽  
pp. 97-105 ◽  
Author(s):  
Wenqing Li ◽  
Jing Gong ◽  
Xiaofang Lü ◽  
Jiankui Zhao ◽  
Yaorong Feng ◽  
...  
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Gas Pipeline ◽  
Flow Loop ◽  
Pressure Flow ◽  
Natural Gas Pipeline ◽  
Hydrate Plug ◽  
Plug Formation
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