Pipe Systems With Enhanced Operational Reliability Manufactured by ChTPZ Group CJSC for Field Pipelines

Author(s):  
A. P. Medvedev

About 200,000 km of internal field pipelines are being operated in the Russian Federation in ten oil companies. The reasons and factors for pipeline breakdown are as follows: • Lack of pipeline cleaning; • Low pipeline workload; • Ineffective program for inhibitor protection and corrosion monitoring; • Utilisation of washing and other process water into field pipelines; • Use of non-treated water in the RPM (reservoir pressure maintenance); • Low corrosion resistance and crack resistance of steels. The regulatory documentation (GOSTs) for oil and gas pipelines has become obsolete and does not take into account the enhancement of corrosion activity of oil field media fixed in recent years. Both internal field and pressure oil pipelines at oil fields are amenable to internal corrosion—pipes fail, as a rule, due to pit corrosion, less frequently due to groove (“rill”) corrosion. ChTPZ Group CJSC ranks the second in the Russian Federation by the volume of manufacture of pipes and welded connecting elements of oil tubular goods. Jointly with research centre specialists, in the course of a number of years it has been carrying out the development of oil and gas pipelines having an enhanced corrosion resistance and cold endurance. Pipes and connecting elements manufactured according new technologies have been operating without accidents since 1996 at a number of West Siberian and other deposits.

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1005 ◽  
Author(s):  
Xingyu Wang ◽  
Xiaoning Qi ◽  
Zhibin Lin ◽  
Dante Battocchi

Corrosion and corrosion-induced damage have resulted mostly in malfunctions and sometimes even in failures of metallic structures, including oil and gas pipelines. In this study, new high-performance composite coatings were developed by incorporating nanoparticles in the polymer resins with applications to oil and gas pipelines. The graphene nanoplatelets under different concentrations were used to prepare the epoxy-based nanocomposites and were then evaluated through mechanical and electrical tests. The integration of high-speed disk and ultrasonication were adopted as the dispersion technique to overcome nanoparticle agglomeration. Electron microscopy techniques were used to investigate the agglomeration. The new composites were qualitatively and quantitatively evaluated in terms of contact angle, surface roughness, adhesion to the substrate, corrosion resistance, and abrasion resistance. The results suggested that the composite with 0.5~1.0 wt.% of the graphene nanofillers led to the largest improvement in both mechanical and electrochemical properties. Distribution of nanoparticles in the matrix was observed using scanning electron microscopy and surface roughness using atomic force microscopy. Large agglomeration that was observed at the higher concentrations mainly resulted in the reduction of corrosion resistance and abrasion resistance.


Metallurgist ◽  
2005 ◽  
Vol 49 (5-6) ◽  
pp. 173-182 ◽  
Author(s):  
I. G. Rodionova ◽  
O. N. Baklanova ◽  
E. T. Shapovalov ◽  
N. I. Endel' ◽  
I. I. Reformatskaya ◽  
...  

2001 ◽  
Vol 15 (9) ◽  
pp. 723-728
Author(s):  
V D Makarenko ◽  
V A Belyaev ◽  
N N Prokhorov ◽  
S P Shatilo ◽  
N E Galichenko ◽  
...  

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