| EPSRC Reference: |
GR/L54271/01 |
| Title: |
STRUCTURAL STABILITY OF THERMOPLASTIC PIPE LININGS FOR THE TRANSPORT OF HYDROCARBONS |
| Principal Investigator: |
Boot, Dr JC |
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| Department: |
Civil & Environmental Engineering |
| Organisation: |
University of Bradford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
15 September 1997 |
Ends: |
14 September 1999 |
Value (£): |
133,293
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| EPSRC Research Topic Classifications: |
| Oil & Gas Extraction |
Water Engineering |
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Summary on Grant Application Form |
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The project aims to evaluate the fundamental criteria governing the stuctural performance of thermoplastic pipe linings proposed for the corrosion protection of high pressure steel pipes for the transport of raw well head fluids for the oil and gas industries. In this respect it has been identified that two possibly ctritical conditions occur at depressurisation. Firstly, differential temperature expansion and gas absorption can cause the lining to buckle longitudinally at a weld bead. Initial mathematical investigations have identifed an imperfection sensitive elastoplastic mode of failure. Results from a range of representative laboratory tests are to be correlated with those given by shell and three-dimensional finite element analysis to obtain a fundamental understanding of the problem. This should facilitate development of a reasonably simple design procedure in this respect. Secondly, seepage of gas into the lining-pipe annulus can lead to pressure buckling. A similar programme of laboratory testing and mathematical modelling is proposed to investigate this problem; this will show if it is necessary to devise a means of venting the annulus pressure. Finally, the possibility of adverse interaction between these two buckling modes will be investigated numerically.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.brad.ac.uk |