e sting Ultr asonic T Who we ar e Co nve ntio na l a nd Oil a - PowerPoint PPT Presentation

Phase d Ar r ay IO N SERVIC ES DAC O N INSPEC T e sting Ultr asonic T

Who we ar e Co nve ntio na l a nd Oil a nd Ga s, Re fine ry, Ove r 400 pe rso nne l T ha ila nd he a dq ua rte rs Adva nc e d NDT a nd Pe tro c he mic a l, He a vy inc luding mo re tha n with Inte rna tio na l Inspe c tio n Se rvic e s Industry, Mining 300 inspe c to rs e xpe rtise sinc e 1979

Advanc e d Ultr asonic Inspe c tion PAUT • PAUT = Pha se d Arra y Ultra so nic T e sting • Co mpute rize d a pplic a tio n o f ultra so nic s in whic h hig h spe e d e le c tro nic s, re a l time ima g ing . With to d a ys a d va nc e d te c hno lo g y, spe c ia l pro b e s a re utilize d fo r inspe c tio n. • T he re is no physic a l d iffe re nc e b e twe e n c o nve ntio na l UT a nd PAUT . Bo th use the sa me b a sic s a nd the o ry • T he ma in d iffe re nc e b e twe e n c o nve ntio na l UT a nd PAUT is within the pro b e S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT • A mo sa ic o f tra nsd uc e r e le me nts • Ba sic a lly PAUT pro b e is a c o nve ntio na l pro b e c ut into ma ny e le me nts • E le me nts' e xc ita tio n c a n b e ind ivid ua lly c o ntro lle d • Ce rta in d e sire d e ffe c ts c a n b e pro d uc e d b y timing the e le me nts e xc ita tio n  ste e ring the b e a m a xis  fo c using the b e a m. S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT How doe s it wor k • E le me nts a re a c o ustic a lly insula te d fro m e a c h o the r • E le me nts a re pulse d in g ro ups with pre c a lc ula te d time d e la y fo r e a c h e le me nt • F o c a l la w: d e fine s the e le me nts to b e fire d , time d e la ys, a nd vo lta g e s fo r b o th the tra nsmitte r a nd re c e ive r func tio ns. S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Be am F or ming • No time d e la y a pplie d • PAUT pro b e b e c o me s like a c o nve ntio na l UT pro b e S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Be am Ste e r ing • Pro vid e s c a pa b ility to mo d ify re fra c te d a ng le • Allo ws fo r multiple a ng le inspe c tio n using a sing le pro b e • Applie s a line a r fo c a l la w (d e la ys) S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Be am Ste e r ing • Pro vid e s c a pa b ility to mo d ify re fra c te d a ng le • Allo ws fo r multiple a ng le inspe c tio n using a sing le pro b e • Applie s a line a r fo c a l la w (d e la ys) S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Be am F oc using and Ste e r ing at the same time • Pro vid e s c a pa b ility to F o c us a t a c e rta in d e pths a nd a t a c ho se n ra ng e o f d iffe re nt a ng le s • Applie s a fo c a l la w (d e la ys) a s in b e lo w fig ure S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT E le c tr onic sc anning • T he a b ility to mo ve the b e a m a lo ng o ne a xis o f a n a rra y witho ut a ny me c ha nic a l mo ve me nt • T he mo ve me nt is pe rfo rme d o nly b y time multiple xing the a c tive e le me nt g ro up • T he b e a m mo ve me nt d e pe nd s o n the pro b e g e o me try a nd c o uld b e :  line a r sc a nning  se c to ria l sc a nning  la te ra l sc a nning  c o mb ina tio n S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT L ine ar e le c tr onic sc an • T he b e a m will mo ve a lo ng the le ng th o f the pro b e • Ca n b e stra ig ht b e a m o r a b e a m a t a fixe d a ng le • T his type o f sc a n is o fte n use d fo r c o rro sio n ma pping a pplic a tio ns S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Se c tor ial sc an • T he a b ility to sc a n a c o mple te se c to r o r vo lume witho ut a ny pro b e mo ve me nt • Use ful fo r inspe c tio n o f c o mple x g e o me trie s • T his is the mo st typic a l sc a n whic h d isting uishe s pha se d a rra y fro m o the r te c hniq ue s S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Applic ations • Ne w c o nstruc tio n we ld inspe c tio n • In-se rvic e we ld inspe c tio n inc lud ing Stre ss Co rro sio n Cra c king • Co mple x Ge o me trie s – No zzle s, F la ng e s, Sha fts, b o lts • C-Sc a n ma pping • AUT is a lso c o mmo nly use d , a c c e pte d , a nd c o d e c o mplia nt with pha se d a rra y ultra so nic s S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT We ld inspe c tion • A sc a n pla n to ma ke sure the we ld is c o ve re d c o mple te ly is ma d e first • T he sc a n pla n will a ssist in se tting up e q uipme nt a nd fo c a l la ws S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT We ld inspe c tion • E quipme nt c alibr ation  Ve lo c ity  We d g e d e la y fo r a ll a ng le s  Se nsitivity fo r a ll a ng le s  T ime Co rre c te d Ga in (T CG) • We ld sc anning  Ma nua lly  Se mi –a uto ma te d , using a n e nc o d e r a nd fixe d d ista nc e to we ld c e nte r line  Using a se mi-a uto ma te d o r c o mple te ly a uto ma te d sc a nne r S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Inspe c tion Re sults • Signal inte r pr e tation  On Omni sc a n  Using T o mo vie w Inte r pr e tation c an be pr e for me d in the fie ld “r e al time ” and also r e vie we d post inspe c tion. Pe r mane nt data file s c an be save d for futur e r e sour c e . Commonly use d for monitor ing and also Auditing inspe c tion r e sults S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE

Advanc e d Ultr asonic Inspe c tion PAUT Adva nta g e s & Disa dva nta g e s Advantage s Disadvantage s • Give s info rma tio n a b o ut la te ra l po sitio n o f • Hig he r c o st e q uipme nt re q uire d d e fe c t in we ld (d e pth a nd he ig ht) • Re q uire s e xpe rie nc e d a nd tra ine d • Give s a pe rma ne nt re c o rd te c hnic ia n fo r inte rpre ta tio n • Re pe a ta b ility, g o o d fo r mo nito ring • Ang le o f inc id e nc e is no t a lwa ys o ptima l whe n using S-sc a n • No ra d ia tio n invo lve d • Ca n b e use d fo r se ve ra l a pplic a tio ns • Ca n find d e fe c t a t surfa c e a nd in vo lume o f we ld (no d e a d zo ne ) • Inte rpre ta tio n simplifie d S FO R A LL YO UR INSPEC TIO N NEED S DACON INSPE CT ION SE RVICE