Rehabilitation of a Critical High-Pressure Transmission Main underneath and in the Vicinity of a Major Highway

2019 ◽  
Author(s):  
Roman Obzejta ◽  
Sarah Mathis ◽  
Murat Engindeniz ◽  
Kristen A. Peterson
Keyword(s):  
High Pressure ◽  
Pressure Transmission ◽  
Major Highway

Combination Application Strategy of Non-Metal Compound Pipe and its Verification

2019 ◽  
Vol 944 ◽  
pp. 873-880
Author(s):  
Yong Qiang Zhang ◽  
Li Liu ◽  
Zhi Gang Yang ◽  
Chuan Ta
Keyword(s):  
High Pressure ◽  
Oil And Gas ◽  
Steel Pipeline ◽  
Combined Application ◽  
Oil And Gas Fields ◽  
Composite Pipe ◽  
Pressure Transmission ◽  
Corrosion Problem ◽  
Gas Fields ◽  
Pipeline Corrosion

The service environment of Yanchang oilfield was researched. The corrosion environment of the oil and gas area of Yanchang group is different, the summer rainstorm is frequent and the landslide debris flow is easy to occur. The theoretical analysis and pilot test of pipeline performance have been carried out. We suggest that the steel pipeline, t FRP pipeline and the flexible composite pipe for high pressure transmission can be used in Yanchang group. The combined application strategy of steel pipeline, FRP pipeline and flexible composite pipe for high pressure transmission was proposed and verified. The results show that the combined application strategy effectively slows down the pipeline corrosion problem, reduces pipeline leakage accidents caused by accidental landslides, and reduces environmental pollution accidents caused by accidents such as pipeline corrosion and leakage. The tracking and analysis of pipeline combined application strategy for up to 5 years, the results show that the pipeline combined application strategy is more economical. It is concluded that the combined application strategy of steel pipelines, FRP pipelines and Flexible Composite Pipe for High Pressure Transmissions can ensure smooth operation of pipelines and save costs in the development of oil and gas fields, and it is recommended to popularize.

scholarly journals Experimental Studies of Releases of High Pressure Natural Gas From Punctures and Rips in Above-Ground Pipework

2000 ◽  
Author(s):  
Geoff Hankinson ◽  
Barbara J. Lowesmith ◽  
Philippe Genillon ◽  
Gilbert Hamaide
Keyword(s):  
High Pressure ◽  
Natural Gas ◽  
Experimental Studies ◽  
Gas Industry ◽  
Size And Shape ◽  
Experimental Parameters ◽  
Pressure Transmission ◽  
Transmission Pipeline ◽  
Release Height ◽  
Gas Cloud

The gas industry has an excellent safety record in operating high-pressure transmission pipelines. Nevertheless, it is important that pipeline operators have an understanding of the consequences of possible accidental gas releases, in order to help manage the risks involved. This paper presents a programme of full scale experiments, undertaken by an international collaboration of gas companies, to study the consequences of both unignited and ignited releases of natural gas from simulated punctures and rips in a 900mm diameter above-ground transmission pipeline. Experimental parameters varied during the programme included release orifice size and shape, release pressure, release height, release direction, wind speed and wind direction. Instrumentation was deployed to obtain detailed data on the dispersion of gas, the ignitability of the gas cloud produced, the levels of incident thermal radiation and the resulting fire size and shape, following ignition. The results provide important data for the validation of mathematical models, used in developing risk assessment methodologies for gas pipelines, and in establishing those standards and design codes that are risk based.

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