Circulation system - Resumo Fluidos De Perfuração E Completação PDF

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STUDENT: J AQUELI NETEI XEI RA DI AMANTI NO

DI RECTED STUDY

CI RCULATI ON SYSTEM

Thec i r c ul a t i o ns y s t e mi sr e s pons i bl ef o rpumpi ngdr i l l i ng flui da ta ppr opr i a t e pr e s s ur e sa nd flo w r a t e sf o r dr i l l i ng o pe r a t i o ns ; 1 . f unc t i ons : r e mo v ede br i sa swe l lt hepr o gr e s soft he dr i l l i ng ;I ta l l o ws t he c i r c ul a t i o na nd t r e a t me nt o f flui ds ; r e s po ns i b l ef o rpumpi ng dr i l l i ng flui d wi t ha ppr opr i a t eflo w a ndpr e s s ur e ; 2 . t r a j e c t or y:mudt a nks=mudpumpdr i l l s t r i ng=== dr i l lho l edr i l l=a nnul a rs pa c eb e t we e nt hedr i l ls t r i nga ndt he wa l l so fwe l l==t r e a t me nte q ui pme ntr e t ur nst ot hemudt a nks ; 3 . c i r c ul a t i on s y s t e m c o mpo ne nt s : mud t a nks ;mud pump; mudho s e ; s l udget r e a t me nte q ui pme nt ; di ke ; i r c ul a t i o ns y s t e m c a n bedi vi de di nt ot hr e e 4 . Thec pha s e s : =4 . 1Pha s ei nj e c t i o nflui di ss uc k e dt hr o ught het a nks a nd mud pumps i nj e c t e di nt ot he dr i l ls t r i ng ;t he s l udg e di s c ha r g el i nepa s s e st hr o ught hes t a ndpi pea nd t he nr o t a t i ng t hehos e ; Thes t a ndpi pel e a di ngt hes l ur r yt ot het o we rha l fho s e i sa l r e a dyr o t a t i ngs t e e lr e i nf o r c e dr ubbe r ; r o t a t i ngt heho s ef r o m t hepumpmo v e st hemuds wi v e l ,do wnt heKe l l ya ndt hedr i l l s t r i ng ; Ta nque ss l udge :t ank dug i nt hegr ound a nd dug = c oa t e d wooda ndc l a ys oi l s ,c l a ywasut i l i ze dt opr e par et hes l ur r y;=t a nks pl a t epumps uc t i onfindsi t s e l fBe l ow: t heflui dl e ve li nt het ank; e a s eof c l e ani ngandt hewhol evol umeofs l udgec oul dbeus e d;Numbe rof t anks :s hal l ow bor e s=2 ;3=de e pdr i l l i ng;=ve r yde e pdr i l l i ngt o5.A l ar ge rnumbe roft anksr e qui r e dt omakepe r f or a t i onsi nc i r c ul a t i on l os sa r e at ot hegr e a t e rt hewe l ldi ame t e r , di ffic ul tt oac c e s sl oc a t i ons . -pumps :t he ys ho ul dpr o vi deas ui t a bl ev ol umeo fflui d, wha t e v e rt hepr e s s ur er e q ui r e dt or a i s et ot hes ur f a c et hede br i s r e mo v e db yt heb i t ,ma i nt a i ni ngapr e s s ur ee q ui l i br i um wi t hi n t hewe l la nd pr o mo t et heh ydr a ul i ce ffe c to no pe r a t i o na nd e ffic i e nc yo ft hedr i l l sj e t ;t wopumpsa r eus e d;de e pwe l l s :3 4 ; Dupl e xPump:1 9 0 1 7 9 0HP ,ma x i mum pr e s s ur eof5 0 0 0ps i , doubl e a c t i ng pump;Tr i pl e x Pump:2 2 0 2 2 0 0 HP ,ma x i mum

pr e s s ur e7 0 0 0 ps i ,ma x i mum pumpi ng 4 0 0 0 Lm;No t e s :t he t r i pl e xpumpsa r et hemos tus e d, be c a us et he ya r emor ec o mpa c t a ndwe i gh3 0 %l e s s ,di s c ha r gi ngt heflui dmo r es moo t hl y ,c a n mo v el a r g ev ol ume so fs l udg ea thi ghe rpr e s s ur e sr e qui r e di n de e pe rwe l l s ;Pump i ns e r i e s :hi ghe rpr e s s ur e s( de e p we l l s ) , i mpr o v e dc l e a ni ngo ft hewe l l ; Pumpi npa r a l l e l : Re t ur nSt a ge4 . 2 : Thes l ur r ya l ongwi t hde b r i sr e t ur nst he a nnul a rs pa c ea ndpa s s e st hr o ught her e t ur nl i ne , a ndt he nmo r e wa s t eflui dsr e a c ht hevi br a t i ngs c r e e n; 4 . 3Tr e a t me ntPha s e :I st hee l i mi na t i o nofs o l i dsorg a s whi c hi nc o r por a t et he flui dsdur i ng dr i l l i ng a nd a l s o whe n ne e de d,i na ddi t i on t oa dj us t me nto fc he mi c a lpr ope r t i e so f flui ds ;Equi pme nt :S i e v e( me c ha ni c a l l yr e mo v e sde b r i sf r o mt he dr i l l i ngmuddo e sno tr e mo v efinede br i s )de s a r e i a do r( f o rs a nd r e mo v a l ,flui ds wi t hs a nd up t o5 % do no tc a us el a r g e i nc o n v e ni e nc e s ) , de s s i l t a do rc e nt r i f ug e d....