Buchheit et al 1998a - Revision history

Scipediacontent at 10:23, 22 January 2021

2021-01-22T10:23:08Z

Scipediacontent: Scipediacontent moved page Draft Content 342087985 to Buchheit et al 1998a

2020-10-26T09:06:59Z

Scipediacontent moved page Draft Content 342087985 to Buchheit et al 1998a

Scipediacontent: Created page with " == Abstract == Results of two studies conducted as part of the Strategic Petroleum Reserve (SPR) Pipeline Corrosion Control Program are reported. These studies focused on ev..."

2020-10-26T09:06:57Z

Created page with " == Abstract == Results of two studies conducted as part of the Strategic Petroleum Reserve (SPR) Pipeline Corrosion Control Program are reported. These studies focused on ev..."

New page

== Abstract ==

Results of two studies conducted as part of the Strategic Petroleum Reserve (SPR) Pipeline Corrosion Control Program are reported. These studies focused on evaluation of rotary-applied concrete materials for internal pipeline protection against the erosive and corrosive effects of flowing brine. The study also included evaluation of liners applied by hand on pipe pieces that cannot be lined by rotary methods. Such pipe pieces include tees, elbows and flanged pipe sections. Results are reported from a corrosion survey of 17 different liner formulations tested at the-Big-Rill SPR Site. Testing consisted of electrochemical corrosion rate measurements made on lined pipe sections exposed, in a test manifold, to flowing SPR generated fluids. Testing also involved cumulative immersion exposure where samples were exposed to static site-generated brine for increasing periods of time. Samples were returned to the laboratory for various diagnostic analyses. Results of this study showed that standard calcium silicate concrete (API RP10E) and a rotary calcium aluminate concrete formulation were excellent performers. Hand-lined pipe pieces did not provide as much corrosion protection. The focus of the second part of the study was on further evaluation of the calcium silicate, calcium aluminate and hand-applied liners in actual SPR equipment and service. It was a further objective to assess the practicality of electrochemical impedance spectroscopy (EIS) for field corrosion monitoring of concrete lined pipe compared to the more well-known linear polarization technique. This study showed that concrete linings reduced the corrosion rate for bare steel from 10 to 15 mils per year to 1 mil per year or less. Again, the hand-applied liners did not provide as much corrosion protection as the rotary-applied liners. The EIS technique was found to be robust for field corrosion measurements. Mechanistic and kinetic corrosion rate data were reliably obtained.

Document type: Report

== Full document ==
<pdf>Media:Draft_Content_342087985-beopen119-5865-document.pdf</pdf>

== Original document ==

The different versions of the original document can be found in:

* [http://dx.doi.org/10.2172/570145 http://dx.doi.org/10.2172/570145]

* [https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf]

* [https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf],[https://digital.library.unt.edu/ark:/67531/metadc694261 https://digital.library.unt.edu/ark:/67531/metadc694261],[https://core.ac.uk/display/71183512 https://core.ac.uk/display/71183512],[https://academic.microsoft.com/#/detail/1592649965 https://academic.microsoft.com/#/detail/1592649965]

@@ Line 3: / Line 3: @@
 Results of two studies conducted as part of the Strategic Petroleum Reserve (SPR) Pipeline Corrosion Control Program are reported. These studies focused on evaluation of rotary-applied concrete materials for internal pipeline protection against the erosive and corrosive effects of flowing brine. The study also included evaluation of liners applied by hand on pipe pieces that cannot be lined by rotary methods. Such pipe pieces include tees, elbows and flanged pipe sections. Results are reported from a corrosion survey of 17 different liner formulations tested at the-Big-Rill SPR Site. Testing consisted of electrochemical corrosion rate measurements made on lined pipe sections exposed, in a test manifold, to flowing SPR generated fluids. Testing also involved cumulative immersion exposure where samples were exposed to static site-generated brine for increasing periods of time. Samples were returned to the laboratory for various diagnostic analyses. Results of this study showed that standard calcium silicate concrete (API RP10E) and a rotary calcium aluminate concrete formulation were excellent performers. Hand-lined pipe pieces did not provide as much corrosion protection. The focus of the second part of the study was on further evaluation of the calcium silicate, calcium aluminate and hand-applied liners in actual SPR equipment and service. It was a further objective to assess the practicality of electrochemical impedance spectroscopy (EIS) for field corrosion monitoring of concrete lined pipe compared to the more well-known linear polarization technique. This study showed that concrete linings reduced the corrosion rate for bare steel from 10 to 15 mils per year to 1 mil per year or less. Again, the hand-applied liners did not provide as much corrosion protection as the rotary-applied liners. The EIS technique was found to be robust for field corrosion measurements. Mechanistic and kinetic corrosion rate data were reliably obtained.
@@ Line 18: / Line 13: @@
 * [https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf]
-* [https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf],[https://digital.library.unt.edu/ark:/67531/metadc694261 https://digital.library.unt.edu/ark:/67531/metadc694261],[https://core.ac.uk/display/71183512 https://core.ac.uk/display/71183512],[https://academic.microsoft.com/#/detail/1592649965 https://academic.microsoft.com/#/detail/1592649965]
+* [https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf https://digital.library.unt.edu/ark:/67531/metadc694261/m2/1/high_res_d/570145.pdf],

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