PIPELINE CURRENT MAPPER METHODOLOGY.docx

7/24/2019 PIPELINE CURRENT MAPPER METHODOLOGY.docx

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USING THE PCM FOR THE SIGNAL ATTENUATION COATING

SURVEY, HOLIDAY DETECTION, LEAK POINTS AND

TRACING/LOCATING THE PIPELINE

TECHNOLOGY EMPLOYED.

PIPELINE CURRENT MAPPER (PCM)

METHODOLOGY OF THE SYSTEM, DATA GATHERING AND

JUDGING CRITERIA

PIPELINE CURRENT MAPPER METHODOLOGY

The PCM system comprses o! " tr"#smtter, " rece$er, "# A !r"me "#% "

so!t&"re "mo#'st other "ccessores( The tr"#smtter o)tp)t *e"%s "re

co##ecte% to the t"r'et ppe*#e to +e s)r$eye% "#% " s)t"+*e e"rth#',

s"cr!c"* "#o%e or 'ro)#% co##ecto#( e!ore ths co##ecto# s %o#e the

tr"#s!ormer rect!er o# the t"r'et ppe*#e s s&tche% o!!(

The tr"#smtter the# #-ects " s'#"t)re mpresse% c)rre#t )#to the t"r'et

ppe*#e to +e s)r$eye%. ths c)rre#t tr"$e*s " %st"#ce o! /0 to /12m o# the

ppe*#e( Ths c)rre#t pro%)ces "# e*ectrom"'#etc !e*% 3s'#"*4 "ro)#% the

t"r'et ppe*#e( Ths s'#"* co#t"#s the s"me c)rre#t m"'#t)%e "#%

%recto# "s the mpresse% c)rre#t(

From the pr#cp*e o! c)rre#t5s'#"* "tte#)"to# the mpresse% c)rre#t

#"t)r"**y "tte#)"tes "*o#' the ppe*#e( The #te'rty o! the co"t#' "#%

ppe*#e %eterm#e the r"te o! c)rre#t *oss "*o#' the e#tre *e#'th o! the t"r'et

ppe*#e( At ppe*#e secto#s &th poor co"t#' co#%to# the c)rre#t *osses

+ecomes more s'#!c"#t "#% "t "re"s &ere " co"t#' !")*t "#% corros$e

"cto# s prese#t there s " sh"rp %rop # c)rre#t +e#' se#t !rom the

tr"#smtter(

A h"#% he*% rece$er "tt"che% to " m"'#etometer s )se% to me"s)re c)rre#t

*oss "t %es'#"te% %st"#ces "*o#' the ppe*#e ro)te "#% the me"s)reme#ts

"re store% # the rece$er( The '"there% %"t" # the rece$er "re *"ter )p*o"%e%

to " PC, the PCM so!t&"re s the# )se% to "#"*y6e the %"t" "#% prese#t "

'r"phc"* represe#t"to# o! the ppe*#e #te'rty(


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PIPELINE CURRENT MAPPER METHODOLOGY.docx

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