碩士 / 國立高雄第一科技大學 / 環境與安全衛生工程所 / 95 / Fossil oil has been the energy source on which human beings most rely since the 20th Century. Till now, no other form of energy can totally replace it. But human beings'' over-reliance on Fossil oil and excessive exploitation have been depleting oil reserves. In addition to looking for alternative energy sources, the radical solution is to save oil energy. A fundamental method for saving oil energy is to prevent oil loss associated with oil leaks. Oil leak incidents from subsea pipelines are not rare, and are usually accompanied by oil pollution to surrounding environment. Take the Mar. 2003 incident in Alaska as an example, 200,000 gallons of crude oil escaped from BP’s heavily corroded pipeline.
Corrosion of pipe material is a major cause behind oil/fuel pipeline leaks, which can only be prevented through monitoring and assessment of pipeline integrity. However, the internal of the pipeline is not easily accessible with traditional approaches. This can be achieved by means of special types of pipeline inspection tools which are not only difficult but also extremely expensive. Although numerous protective measures such as cathodic protection has been applied to the pipeline as it was fabricated and installed, the condition of pipeline is still unknown.
The Pipeline Inspection Tool (PIT) was selected as the vehicle for transporting sensors in and out of the pipeline due to its balanced performance in cost, effectiveness, and potential risk level. With the inspection data collected, locations and dimensions of the most heavily corroded spots are then identified and marked by the GPS utility. We then proceed to compute the effects of corrosion, rate of deterioration due to corrosion, and remaining life of the pipeline.
Results of the study indicate that the pipeline is mostly in good shape with roughly 22 years of remaining life available. However, it is suggested of the study to strengthen the maintenance plan and emergency response measures in order to be better prepared for the potential hazards of external forces and natural disasters.
| Identifer | oai:union.ndltd.org:TW/095NKIT5519019 |
| Date | January 2007 |
| Creators | Fang-Cheng Chang, 張芳正 |
| Contributors | Chen-hua Wang, 王振華 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 94 |
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