Stress Analysis of Shallow Sea Gas Pipelines

Shallow Gas Analysis in Skrugard Area, SW Barents Sea

In 2011, Skrugard discovery made an explorational breakthrough in the south-western Barents Sea. Earlier this year, Havis discovery (well 7220/7-1) was found in the same area. Both two discoveries are found in the same production license. The double flat spots were found in both Skrugard and Harvis discoveries. However, there are many dry wells in the same area before these two discoveries. The...

Stress analysis of parallel oil and gas steel pipelines in inclined tunnels

Geological conditions along long distance pipelines are complex. In consideration of differences in elevation and terrain obstacles, long distance pipelines are commonly laid through tunnels. Oil and gas pipelines are often laid side by side to reduce construction costs and minimize geological impact. The layout and construction of parallel oil and gas pipelines are more complex than those of s...

Natural Gas Pipelines

Metallurgical Analysis of High Pressure Gas Pipelines Rupture

On 6 July 2004, two parallel-running gas pipelines (18-inch and 24-inch diameters), in the main transmission network of SNGPL (a gas company in Pakistan) were ruptured. The ruptures occurred in the early hours of the morning about 8 miles downstream of the compressor station AC-4. The ruptures were indicated by the increased gas flow at the outlet of AC-4 [1], first at about 0648 hours and then...

Towards the Formal Reliability Analysis of Oil and Gas Pipelines

It is customary to assess the reliability of underground oil and gas pipelines in the presence of excessive loading and corrosion effects to ensure a leak-free transport of hazardous materials. The main idea behind this reliability analysis is to model the given pipeline system as a Reliability Block Diagram (RBD) of segments such that the reliability of an individual pipeline segment can be re...