Influence of Key Parameters on NACE Standard TM0177 DCB Sour Gas Test

L. Moderer; Christoph Holzer; Gregor Mori; Gerald Klösch; Jürgen Klarner; Robert Sonnleitner

doi:10.1007/s00501-013-0178-0

Influence of Key Parameters on NACE Standard TM0177 DCB Sour Gas Test

L. Moderer
, Christoph Holzer
, Gregor Mori
, Gerald Klösch
, Jürgen Klarner
, Robert Sonnleitner

Chair of General and Analytical Chemistry (120)

Christian Doppler Laboratory of Localized Corrosion
voestalpine Stahl Donawitz GmbH
Department R and D, Voestalpine Tubulars GmbH and Co. KG

Research output: Contribution to journal › Article › Research

Abstract

New oil and gas fields with increasing pressure, temperature, and H2S concentrations require higher standards of steel qualities. Recent investigations show that the production of SSC-resistant steels with increasing strength is necessary.
The NACE Standard TM0177-2005 allows tolerances for the manufacturing of Method D specimens. It is also possible to test with different arm displacements in a given range and to choose between a slot with a chevron crack starter or an electro discharge-machined slot. Furthermore also precracking is allowed resulting in a change of initial crack length.
Experiments were designed to investigate effects of initial crack length, precracking, arm displacement, and notch type on KISSC. All parameters were tested with a modified T95 quality regarding the NACE Standard TM0177 Method D, Solution A, and 100 % H2S. Characterization after testing was done by optical microscopy. Edge cracks were determined by a 3 dimensional optical device Infinite Focus AliconaTM.
Influences of arm displacement, initial crack length, precracking, and notch type are critically discussed with respect to the KISSC.

Translated title of the contribution	Influence of Key Parameters on NACE Standard TM0177 DCB Sour Gas Test
Original language	English
Pages (from-to)	348-354
Number of pages	7
Journal	Berg- und hüttenmännische Monatshefte : BHM
Volume	2013
Issue number	Band 158, Heft 9
DOIs	https://doi.org/10.1007/s00501-013-0178-0
Publication status	Published - 2013

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10.1007/s00501-013-0178-0

Cite this

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title = "Influence of Key Parameters on NACE Standard TM0177 DCB Sour Gas Test",

abstract = "New oil and gas fields with increasing pressure, temperature, and H2S concentrations require higher standards of steel qualities. Recent investigations show that the production of SSC-resistant steels with increasing strength is necessary. The NACE Standard TM0177-2005 allows tolerances for the manufacturing of Method D specimens. It is also possible to test with different arm displacements in a given range and to choose between a slot with a chevron crack starter or an electro discharge-machined slot. Furthermore also precracking is allowed resulting in a change of initial crack length. Experiments were designed to investigate effects of initial crack length, precracking, arm displacement, and notch type on KISSC. All parameters were tested with a modified T95 quality regarding the NACE Standard TM0177 Method D, Solution A, and 100 \% H2S. Characterization after testing was done by optical microscopy. Edge cracks were determined by a 3 dimensional optical device Infinite Focus AliconaTM. Influences of arm displacement, initial crack length, precracking, and notch type are critically discussed with respect to the KISSC.",

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T1 - Influence of Key Parameters on NACE Standard TM0177 DCB Sour Gas Test

AU - Moderer, L.

AU - Holzer, Christoph

AU - Mori, Gregor

AU - Klösch, Gerald

AU - Klarner, Jürgen

AU - Sonnleitner, Robert

PY - 2013

Y1 - 2013

N2 - New oil and gas fields with increasing pressure, temperature, and H2S concentrations require higher standards of steel qualities. Recent investigations show that the production of SSC-resistant steels with increasing strength is necessary. The NACE Standard TM0177-2005 allows tolerances for the manufacturing of Method D specimens. It is also possible to test with different arm displacements in a given range and to choose between a slot with a chevron crack starter or an electro discharge-machined slot. Furthermore also precracking is allowed resulting in a change of initial crack length. Experiments were designed to investigate effects of initial crack length, precracking, arm displacement, and notch type on KISSC. All parameters were tested with a modified T95 quality regarding the NACE Standard TM0177 Method D, Solution A, and 100 % H2S. Characterization after testing was done by optical microscopy. Edge cracks were determined by a 3 dimensional optical device Infinite Focus AliconaTM. Influences of arm displacement, initial crack length, precracking, and notch type are critically discussed with respect to the KISSC.

AB - New oil and gas fields with increasing pressure, temperature, and H2S concentrations require higher standards of steel qualities. Recent investigations show that the production of SSC-resistant steels with increasing strength is necessary. The NACE Standard TM0177-2005 allows tolerances for the manufacturing of Method D specimens. It is also possible to test with different arm displacements in a given range and to choose between a slot with a chevron crack starter or an electro discharge-machined slot. Furthermore also precracking is allowed resulting in a change of initial crack length. Experiments were designed to investigate effects of initial crack length, precracking, arm displacement, and notch type on KISSC. All parameters were tested with a modified T95 quality regarding the NACE Standard TM0177 Method D, Solution A, and 100 % H2S. Characterization after testing was done by optical microscopy. Edge cracks were determined by a 3 dimensional optical device Infinite Focus AliconaTM. Influences of arm displacement, initial crack length, precracking, and notch type are critically discussed with respect to the KISSC.

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DO - 10.1007/s00501-013-0178-0

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JO - Berg- und hüttenmännische Monatshefte : BHM

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