CP BLOG Continued from page 39
A A
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The high reading at the casing on the pipeline is probably caused Ja \PM QVÆ]MVKM WN \PM UIOVM- [Q]U IVWLM IZM NW]VL _Q\PW]\ \PM XZM[- MVKM WN [\ZIa K]ZZMV\[ 1N \PMZM Q[ VW WJ^QW][ ZMI[WV NWZ [\ZIa K]Z-
ZMV\[ \PMZM XZWJIJTa IZM VWVM
Depleted anodes on a marine pipeline
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I have encountered an unusual situation on a marine pipeline chan- nel crossing. <_W
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TQVM[ PI^M MQOP\ IVWLM Q[
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IVWLM [\ZQVO[ -IKP SO bQVK \W I KWXXMZ KWXXMZ []TNI\M +] +];7 MTMK\ZWLM +;- 0W_M^MZ IN\MZ UMI[]ZQVO K]ZZMV\ W]\X]\ WN \PM MQOP\ IVWLM [\ZQVO[ 1 NW]VL WVM [\ZQVO X]\\QVO W]\
U) NW]Z W\PMZ[ _Q\P bMZW K]ZZMV\
IVL \PZMM ZM\]ZVQVO I \W\IT WN U) \W \PM TQVM[ 1 LQ[KWVVMK\ML ITT \PM [\ZQVO[ M`KMX\ \PM WVM _Q\P K]ZZMV\ ÆW_ QV \PM XZWXMZ LQZMK\QWV IVL VW_ IKPQM^M XZW\MK- \QWV _Q\P U) 1 IU ]VKMZ\IQV I[ \W \PM ZMUIQVQVO
TQNM WN \PM [a[\MU IVL IU \PMZMNWZM considering replacing the groundbeds _Q\P IT]UQV]U K]\\QVO MUQ[[QWV WN bQVK QWV[ \W \PM KWI[\IT _I\MZ[ Q[ KWV[QLMZML I XT][ ?PQTM ZM[MIZKPQVO \PM TQ\MZI\]ZM WV bQVK IT]UQV]U KWUJQVI\QWV[ 1 NW]VL ¹4WVO