Rehabilitation of corrosion protective coatings on buried steel pipelines (English)

International Conference on Pipeline Protection, 18
BHR Group , Cranfield; 2009

After construction of large pipeline networks in the past 50 years, rehabilitation of these pipelines now becomes a major topic. Materials to be refurbished are bituminous and coaltar coatings, PVC and PE- two-ply tapes. Collapse of these systems are both material properties and intrinsic system-built up drawbacks as well as application faults. This paper introduces some state of the art tape systems and polyurethane coatings which guarantee powerful and economical solutions for a variety of project requirements and includes a rehabilitation job site experience and long-term investigations of a major European operator. It pays off to choose the appropriate system for the unique project requirements of every rehabilitation site. It has to be taken into consideration that the percentage of each coating system is around 0,03 % - 1 % of the total project costs only, but due to low quality materials, not suited for the requirements on site or incorrect application, field joint coatings are a major source of defects which originates indirect losses and high consequential damages. Every chain is only as strong as its weakest part. Therefore it is negligent to disdain the value for a coating protection. For nearly all requirements on site there are high-quality long-lasting solutions available worldwide, one only have to choose the appropriate system. For standard temperatures up to +50 deg C state-of-the art three-ply tapes systems offer the widest range to meet the diverse and many conditions on sites and can be applied at ambient temperatures from -35 deg C to +60 deg C. At exceeded temperature ranges or requested raised mechanical resistance, thermosetting compounds based on polyurethane or epoxy will probably be the best choice.

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Table of contents conference proceedings

The table of contents of the conference proceedings is generated automatically, so it can be incomplete, although all articles are available in the TIB.

5
Residual stresses in 3LPO external pipeline coatings - disbondment and cracking
Chang, B.T.A. / Wong, D. / Kehr, A. / Aguirre, F. / Pham, H. / Snider, W. | 2009
25
A new application process that assures good adhesion of fusion bonded epoxy coating exposed to very severe conditions
Gaillard, G. / Bouliez, J.L. / BHR Group Limited | 2009
43
Adhesion failure of external 3 layer extruded polyethylene (3 LPE) based coatings for gas/oil transmission pipelines buried under soil
Hussain, A. / Pflugbeil, C. | 2009
57
Development and performance of a low application temperature FBE coating
Pratt, J.K. / Mallozzi, M.L. | 2009
67
Design of Mid.Tg FBE powder coatings to meet the requirements of pipe coaters and pipeline owners
Patterson, M. / Drew, S. / Boerschel, V. | 2009
81
Rheokinetic modeling of fusion bonded epoxy powder coatings at standard and low application temperature
Shafi, M.A. / Aguirre, F. / Trottier, E. / Falcone-Potts, S. | 2009
95
PNC: A new solution for offshore field joint coatings
Mallozzi, M. / Perez, M. / BHR Group Limited | 2009
103
Novel field joint coating solutions for the construction of subsea pipelines
Tailor, D. / Tacoma, E. / BHR Group Limited | 2009
117
Pipeline rehabilitation for the 21st century
Bond, T.J.M. / Miles, D.J. / Burke, R.N. / Venero, N.J. / BHR Group Limited | 2009
137
The impact of logistic operations on coatings in the supply chain of pipelines
van Assema, I.M. / BHR Group Limited | 2009
151
Rapid hardening concrete cloth for oil, gas and water pipeline protection applications
Orr- Adams, F.A. / Brewin, P. / Hiam, E. | 2009
161
Dow products for 3LPE steel pipe coating - AMPLIFY™ GR 320 and HDPE 12110G
Henschke, O. / BHR Group Limited | 2009
169
Rehabilitation of corrosion protective coatings on buried steel pipelines
Schad, M. / Ströter, C. / Rehberg, T. | 2009
185
The challenge - renovation project in new dimensions: the renewal of the anti-corrosion protection of the hydropower station at Wehr, Germany
Zwanzinger, A. / Rainer, E. / Huber, T. / BHR Group Limited | 2009
201
Foamed cement mortar to protect coated steel pipelines from external acid attack
Trebicki, D.D.P. / BHR Group Limited | 2009

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