Graphene Reinforced Composites as Protective Coatings for Oil and Gas Pipelines

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.

Download Full-text

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

Volume 1: Project Management; Design and Construction; Environmental Issues; GIS/Database Development; Innovative Projects and Emerging Issues; Operations and Maintenance; Pipelining in Northern Environments; Standards and Regulations ◽

10.1115/ipc2006-10618 ◽

2006 ◽

Author(s):

A. P. Medvedev

Keyword(s):

Corrosion Resistance ◽

Russian Federation ◽

Oil And Gas ◽

Internal Field ◽

Oil Field ◽

Research Centre ◽

Corrosion Monitoring ◽

Gas Pipelines ◽

Oil And Gas Pipelines ◽

The Russian Federation

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.

Download Full-text

Methods of Evaluating the Corrosion Resistance of Low-Alloy and Carbon Tube Steels under the Service Conditions of Oil and Gas Pipelines

Metallurgist ◽

10.1007/s11015-005-0074-2 ◽

2005 ◽

Vol 49 (5-6) ◽

pp. 173-182 ◽

Cited By ~ 1

Author(s):

I. G. Rodionova ◽

O. N. Baklanova ◽

E. T. Shapovalov ◽

N. I. Endel' ◽

I. I. Reformatskaya ◽

...

Keyword(s):

Corrosion Resistance ◽

Oil And Gas ◽

Gas Pipelines ◽

Carbon Tube ◽

Tube Steels ◽

Oil And Gas Pipelines ◽

Service Conditions

Download Full-text

SMOOTH AND REDUCED OIL AND GAS PIPES WITH INCREASED CORROSION RESISTANCE

Physical Metallurgy and Heat Treatment of Metals ◽

10.30838/j.pmhtm.2413.010721.7.777 ◽

2021 ◽

pp. 7-18

Author(s):

V.I. BOLSHAKOV ◽

Т. О. DERHACH ◽

D.A. SUKHOMLYN

Keyword(s):

Mechanical Properties ◽

Corrosion Resistance ◽

Oil And Gas ◽

Protective Coatings ◽

Oil And Gas Industry ◽

High Corrosion Resistance ◽

Gas Industry ◽

High Corrosion ◽

Oil And Gas Pipelines ◽

Qualitative Characteristics

Formulation of the problem. Corrosion of pipes used in the oil and gas industry leads to significant economic losses, therefore, increasing their corrosion resistance and durability is an urgent task. Purpose: generalization of results of developments of technologies of manufacturing and research of qualitative characteristics of oil and gas pipelines (smooth) and pump-compressor (threaded) pipes of the increased and high corrosion resistance and giving recommendations on their application in oil and gas industry in environments of various corrosion aggressiveness. Methodology. The microstructure of tubular steels and protective coatings was studied by light metallography and electron microscopy. Complex corrosion studies included laboratory tests of samples in model chloride and hydrogen sulfide-containing media, the resistance to sulfide corrosion cracking under stress (SCCS) and hydrogen cracking (НС) according to the methods of NACE TM 0177 and NACE TM 0284 as well as operational tests at the oil fields of Ukraine. Mechanical properties for stretching and impact bending of samples by standard methods. Results. The results of the development of production technologies and the study of the qualitative characteristics of oil and gas pipelines and tubing with increased and high corrosion resistance in aggressive oil and gas production environments are summarized. The influence of the chemical composition of steels and protective coatings, as well as pipe manufacturing technologies on their microstructure, corrosion resistance in various media, and mechanical properties is shown. Scientific novelty. For the first time, the presence of special low-energy boundaries in the ferrite of low-alloy ferrite-pearlite and high-alloy ferritic-austenitic steels was established, their number and energy level were estimated. The high operational reliability of threaded pipes with a protective coating is substantiated. Practical value. The results of the work and recommendations for the rational use of oil and gas pipes with increased corrosion resistance can be used to increase the economic efficiency of production in the oil and gas industry.

Download Full-text