AMPP Store - Products tagged with 'girth weld'

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05031 Testing and Selection of Girth Weld Protective Coatings

Product Number: 51300-05031-SG

ISBN: 05031 2005 CP

Author: Amal Al-Borno and Mick D. Brown, Charter Coating Service

Publication Date: 2005

$20.00

This paper describes the relevant characteristics of available joint coating types and examines different testing protocols to explore these characteristics. The objective is to assist in the selection of appropriate, practical, cost effective girth weld protective coatings. that will provide good long-term corrosion protection.

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51316-6970-Development Of Spray-Applied Pipeline Erosion-Protective Epoxy Linings

Product Number: 51316-6970-SG

ISBN: 6970 2016 CP

Author: Osmay OHarriz

Publication Date: 2016

$20.00

This paper aims to present a novel class of pipeline protective lining materials that provide erosion-corrosion resistance combined with negligible wear to spray equipment. These coatings have been formulated with a blend of thermoplastic fillers rather than the traditional ceramic fillers used for erosion resistance.

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Failure Investigation of Internal Girth Weld Coating Surface Preparation: A Case Study

Product Number: MPWT19-14360

Author: Rashed Alhajri, Yousef Alrayes, Fahad Alhindas, Ghassan Bahamden

Publication Date: 2019

$0.00

During the construction of a 56km long 16 in. carbon steel sour gas pipeline, repetitive surface
preparation failures were detected during visual inspection of pipeline girth weld internal surface prior to
coating application. Such failures represented 67% of the total pipeline girth welds and were manifested
by excessive sharp-edges at the root pass. To identify the failure causes, an investigation was
performed through reviewing the pipeline, fabrication and coating application specifications and
procedures, quality control records and performing an extensive visual inspection through an advanced
video robotic crawler on all pipeline girth welds made. Upon investigation analysis, the failures were
caused by sharp-edges in the root pass which were attributed to improper practices during
manufacturing, field fabrication and pre-coating quality control. The failure analysis indicated that the
mechanized Gas Metal Arc Welding process, with the parameters used, was not suitable for internal
girth weld coating application. In addition, a more stringent requirement should be applied to the
acceptable pipe-end diameter tolerance and pre-coating quality control to ensure absence of similar
premature surface preparation failures. The pre-coating quality control can be improved through
utilization of robotic laser contour mapping crawler for precise detection and sizing of unsatisfactory
surface weldment defects, including sharp edges.

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Failure of Pipeline Internal Girth Weld Coating Surface Preparation: Investigation and Case Study

Product Number: MECC23-20165-SG

Author: Rashed Alhajri; Yousef Alrayes; Yasser Alsubhi

Publication Date: 2023

$20.00

Pipelines have primarily been developed for the oil and gas business as well as building domestic water networks. To ensure the quality and longstanding pipelines, inspection and quality during design, construction and operations are of prime importance. During construction, pipe manufacturing and field fabrication represent the major cornerstone of a construction quality program.

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Improved Girth Welding On Seamless Linepipe For High H2S Partial Pressure Condition

Product Number: 51322-17710-SG

Author: Florian Thebault, Antoine Remy, Laurent Faivre, Sébastien Leconte

Publication Date: 2022

$20.00

NACE MR0175 / ISO 15156 document part 2 provides material requirements for selecting cast irons and low-alloy steels for sour environments.¹ Figure 1 is reproduced from this standard and describes different regions of environmental severity for Sulfide Stress Cracking (SSC): service in region 0 being the least susceptible to cracking, even for very sensitive materials, and region 3 being the worst.

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NACE SP0716-2023, Soluble Salt Testing Frequency and Locations on Previously Coated Surfaces

Product Number: NACE SP0716-2023

Publication Date: 2023

$109.00

Asset owners, engineers, consultants, coating contractors, inspectors, and others are specifying allowable levels of surface soluble salts to prevent premature coating failures. The purpose of this standard is to provide guidance about the number of and locations for soluble salt tests on steel surfaces.

This standard establishes siting and frequency requirements for soluble salt testing before the application of a subsequent coating system to previously coated substrates and replacement substrate material. It does not include allowable limits of soluble salts, which are typically addressed by the procurement documents or the coating manufacturer’s documentation.

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Qualification of Seamless X60QOS and X65QOS Line Pipe Grades for Extreme Sour Service Conditions with Partial Pressure of H2S beyond 1 Bar

Product Number: MPWT19-15127

Author: Florian THEBAULT, Laurent LADEUILLE, Harold EVIN, Laurent LAMPS

Publication Date: 2019

$0.00

Seamless X60QOS and X65QOS line pipes are widely used for offshore and onshore Sour Service applications. Sour Service refers to the risk of hydrogen related cracking as Sulfide Stress Cracking (SSC). The International standard (NACE MR0175 / ISO 15156) provides requirements for assessing the resistance to SSC, specifically on how to qualify for use in region 3 of the environmental severity diagram (Figure 1 in paragraph 7.2.1.2 of part 2). It is requested to expose materials in an acid solution saturated by 1 bar of H2S (NACE TM0177 Solution A) and to apply a tensile stress above 80% AYS by means of different methods: uniaxial tensile, C-ring or Four-Points Bend. However, for very sour fields presenting H2S partial pressures much higher than 1 bar, the preservation of the SSC resistance might be questioned and is presently a major concern for the O&G industry.
The present paper is dedicated to the evaluation of the SSC resistance of seamless quenched and tempered X65 grades, including the girth weld in the standard NACE TM0177 Solution A up to 15 bar of H2S partial pressure. Corrosion tests consisted of four-point bend tests performed in autoclave vessels. Different test configurations were investigated as specimen sampling locations through the wall thickness and surface state preparation.

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Qualification of seamless X60QOS and X65QOS linepipe grades for extreme sour service conditions with partial pressure of H2S beyond 1 bar

Product Number: 51320-14585-SG

Author: Florian Thebault, Laurent Ladeuille, Laurent Lamps, Harold Evin

Publication Date: 2020

$20.00

Seamless X60QOS and X65QOS linepipes are widely used for Sour Service offshore and onshore applications. Sour Service refers to the risk of hydrogen related cracking, such as by Sulfide Stress Cracking (SSC). The International standard NACE MR0175 / ISO 15156 provides requirements for assessing the resistance to SSC, specifically on how to qualify for use in region 3 of the environmental severity diagram (Figure 1 in paragraph 7.2.1.2 of part 2). Qualification requires exposing materials in an acid solution saturated by 1 bar of H2S (NACE TM0177 Solution A) and to apply a tensile stress above 80% AYS by means of different methods: uniaxial tensile, C-ring or Four-Point Bend. However, for very sour fields presenting H2S partial pressures much greater than 1 bar, the preservation of the SSC resistance might be questioned and is presently a major concern for the O&G industry.

Available for download

Selection and Testing of Fusion Bond Epoxy Coating for High Pressure Pipelines with H2S and CO2 Acid Gases

Product Number: 51323-19482-SG

Author: Sameer Ayyar

Publication Date: 2023

$20.00

New gas field expansion will provide offshore facilities to process non-associated gas, where the new
gas gathering system takes non-associated gas from offshore gas wells and transports it through
pipeline to onshore processing plants. The gas is very corrosive due to high levels of H2S and CO2 acid
gases content. Further hydrate control is achieved by injecting mono ethylene glycol (MEG).

Products tagged with 'girth weld'

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