CONG NGHE CONG NGHE MOI trong tham do, khai thac, van chuyen dau khi « '''' J * ? Trong linh vUc thdm dd dja vdr ly biin vd khai thdc vdn chuyin ddu khi, cdc khd khdn, thdch thUc dd trd thdnh dpng lUc gi[.]
Trang 1CONG NGHE MOI
Trong linh vUc thdm dd dja vdr ly biin vd khai thdc - vdn chuyin ddu khi, cdc khd khdn, thdch thUc dd trd thdnh
dpng lUc giup khoa hpc - ky thudt - cdng nghi phdt triin vdi tdc dp cao Bdi viit ndy gidi thliu mpt sd thdnh tUU ve cdng nghi thu no dia chdn da phUOng vf cua CCCVeritas vd mpt so tUn bp ky thudt trong khai thdc - vdn chuyin ddu khi d nhdng cdng ty nhd cua My Hy vpng qua ddy ban dpc tiip cdn dUpc mpt s6 cong nghi, ky thudt mdi vd quan trpng han Id rut dUpc bdi hpc Idm thi ndo dicdc cdng ty nhd (cdch ddy 10 ndm khdng cd tiing tdm), nay dd ddng vdo danh sdch cdc cdng ty hdng ddu cda ngdnh ddu khi thigidi
Cong nghe dia c h i n mdi cua CGG Veritas
De hinh i n h trong Idng dat rd hon, Cdng ty Dia v i t ly
CGGVeritas (Nauy) ap dyng cdng nghd thu no, xd ly mdi
tren khu vue Keathley Canyon, vjnh Mexico, phan thudc
My D i y la eong nghe dia chin 3D, phu bdi, mang tdn
IBALT, tham dd trdn 221 Id {5.150km''), sddung ddng thdi
5 - 6 tau dia c h i n va dijng phuong p h i p thu nd phuong
vi rdng (wide azimuth) Du bao, cdng nghe nay se duoc
nganh dau khi sd dyng nhidu trong thdi gian tdi, mac dii
kha d i t lidn Bii lai, khich hang se cd nhdng l i t cit, b i n do
dja c h i n chat tuang cao, chi t i l l hon so vdi viee sd dyng
cic phuong p h i p phd bidn hidn nay, do dd g i i m riii ro
trong vide chon vj tri gidng khoan phat tnen, eung tdc l i
g i i m chi phi khoan cung nhu g i i m long chi phi tham dd
vdi cdng nghe niy, CGGVeritas da chdng minh ring hp t i
mdt trong eic cdng ly dia vat ty hang d i u , canh tranh vdi
Western Geco va Petroleum Geo-Service {PGS) - nhdng
cdng ty noi t i i n g trong nganh d i u khi bien dang sd hdu
cdng nghe dia ehin phuong vi rdng
De i n n i y dupc xem la bude khdi d i u eiia ddi t i u
StagSeis, mdt doi thii trong cudc chay dua tham dd dja
c h i n trong cac mdi trudng dia chit phdc tap, nhu c i u tao
dudi mudi d cic vung b i l n Bac My, Nam My ITieo dng
Jean - George Malcor - CEO cua CGGVeritas, "CGGVeritas
tudn ddng h i n g d i u trong cdng cudc sing lao v i i p dung
cic cdng nghd dia c h i n tidn bd d vinh Mexico' Sau khi
i p dung phUPng p h i p phucmg vj rdng nay lan dau tien
d vmh Mexico each d i y 5 nam, CGGVeritas da t u t i n md rdng dja ban hoat dpng ra nhieu noi k h i c Su khac bidt Idn nhat eiia IBALT la sif dung t i u dia c h i n 2 chdc nang (dual), offset (cda s6) d i i n h i t hidn nay, cd thd ddn 20km, tao dp phil tat c i cic phuang vj trong pham vi 10km cho ndn
nd CO t h i trd t h i n h t h i c h thifc true t i l p ddi vdi ky thuit Coil Shooting { b i n xoin) cua Western Geco trong he thu
dir lidu Q-Marme vdi offset d i i 14km Coil Shooting ddtjc
thiet ke de md rdng k h i n i n g tham dd phuong vj rdng, phue vy nhidu khich h i n g , dimg chi mdt tau chay tren nhieu vijng chdng l i p nhau theo eie vdng trdn lidn tuc
Hidn nay, tren thj trudng d i cd mdt ky thuit mdi, goi l i Multivessel dual - coil shooting (bin xoin, diing nhidu t i u dia c h i n 2 ehiirc n i n g - vda p h i t sdng vda thu sdng - cimg mdt liic) Tiu chay theo vdng trdn cd nghTa la tao didu kien thu - no theo n h i l u phuong vi, nhidu offcet hon la phuong thdc chay theo cic tuyen song song nhUtif trudc d i n nay v i n l i m Ngoii ra, phuong thdc ehay vong trdn khdng tao ra thdi gian phi sin x u i t nhU khi chuy^
t d t u y l n n i y sang tuyen khic trong phuang thdc tau chay theo tuydn song song CGGVeritas cho rang, vdi cich tiep
c i n thdng qua k i t hpp cdng nghd StagSeis vdi BroadSeis thi edng nghe mdi ciia hp cd the cung e i p hinh inh day
du theo cic phuong vi khic nhau ma khach hing mong
Trang 2mudn v i sd lieu thu duac cung dupe xir ty de d i n g hon
•kj^ thuit Coil shooting CGGVeritas dang c i i t i l n d l h o i n
thidn mdt sd kdnh ghi nhanh trong m i y ghi sdng va hy
vgng se trinh b i y trong Hdi t h i o ciia Hpi Oia v i t ly t h i m
F(SEG) tai Las Vegas v i o t h i n g 11/2012
StagSeis d i duoc cdng n h i n l i mdt cdng ngh$ t i l n
bd duoc CGGVeritas v i Sercel (cdng ty sin x u i t thidt bj dia
vat ly, t h i n h vidn ciia CGG Veritas) sing tao Cdng nghd
PJoadSeis (bang ghi rdng, n h i l u t i n sd) do hp dUa ra cich
day 2 nam ciJng dUpc gdp v i o cdng nghd StagSeis, Vdi
do tin cay/chinh xic cao, sd lieu tan sd t h i p cho phdp
nang cao dp xam n h i p siu cua sdng dd l i m rd hinh i n h
eic dfii tuong d s i u cung nhu tao ra sU dn dinh trong ky
thuat nghich d i o tin hieu sdng Mpt Ipi ieh b i t ngd, khdng
CO chii y trong thidt ke cua cic ky t h u i t bang rpng l i cic
cong ty d i u khi cd the md rdng/kdo d i i cda so thdi tidt
thu s6ng khi thuc h i n h n g o i i thuc dja bdi vi streamers
(day miy thu) dUPe lai d i t chim d dp siu nhd hPn k i t c i u
thiet bi truyin thdng, do dd it bj ha hdng do cie dieu kidn
nude bidn thay ddi theo mua hay thdi t i l t g i y ra [3]
PGS dua ra Omg dung cdng nghd bang rdng l i n d i u
vio nam 2007 v i hien nay trdn thj trUdng dia v i t ly b i l n
fla CO he thdng Geostreamer GS b i n g rdng vdi streamer
kep (dual streamer) cung nguon kep chuyen bidt (special
dual-source}.Td'kdp"dung dday dUPe hieu la ngudn p h i t
Hinh I idt cdt dia chdn thu dupe trin cdu tgo Hinh 2 Ldt
efife diapla mudi bdng cdng nghi dia chdn chdadidpia
tiling dung [3]
sdng (source) eung nhu may thu sdng dupe t h i l t k l dat ddng thdi d 2 hoic nhilu do sau khac nhau so vdi mat nude b i l n tai d i l m khio sat Didu do ndi Idn ring cdng
eu niy ed t h i thu dupc hinh i n h vdi do phin g i i i cao, loai trir dupe cic nhieu dUdi dang "tin hidu ma (ghosts)" ciia
m i y thu l i n ngudn (mat nude b i l n t i c dpng nhu mdt mat guong i m hpc h o i n h i o ndn g i y ra tin hidu ma khdng t h i
t h o i t trong sd tidu ghi sdng dia chin thdng thudng) cung nhu loai trd sy han chd ciia ngUdng thu sdng nhd sif dung
d i i l i n s6 rdng Tai vj tri ngudn ddi vdi moi lin b i n , mdt
p h i n xa mudn ve thdi gian t d mat bien l i m keo dai qua trinh irudng sdng d i n hdi do vu nd g i y ra truyen trye tiep
v i o Idng dat Didu dd hiiy diet e i thdng tin t i n sd thap tan
t i n sd eao Tuong tu, tai vj tri moi mdt may thu dpe theo streamer, mdt p h i n xa mudn t d mat b i l n se giao thoa vdi sdng p h i n xa ed ieh Bin ehit eiia sy giao thoa gida trUdng sdng "so cap" (primary) v i trudng sdng "ma" thay doi theo
dd sau eiia vi tri ngudn (doi vdi ngudn ma - source ghost) hoac dp chim (siu) ciia streamer (ddi vdi miy thu ma -receiver ghost) V l phin may thu"ma", ddi vdi do ehim siu
d i cho bat ky cOa streamer, bien dp eiia mpt sd t i n sd se
bj c i t bd hoan toan tai sensor ghi sdng ("notches" - bidn
dp t i n so bj eat), cdn bidn do eiia cie t i n sd khac lai se dupe tang g i p ddi ("peaks"- dinh) Ndi ehung, eie t i n so
"dinh"xe djch ve phia eie gia tr| t h i p khi tang dp chim siu eiia streamer va ngUpe lai Hidn tUPng "miy thu ma" ludn
la van de/khd khan ddi vdi streamer g i n hydrophone
e i vd phuong didn dia vat
ly lan thUe hanh t r i l n khai tren thue dja
Ve CO b i n , cdng nghe bang t i n sd rdng eho phep thu dupe cie sdng con (wavelets) cd hinh hai
rd rang, noi bat n h i t ndn dieu do d i p dng duoc ydu cau trong vide thu hinh
i n h cua nhdng doi tUong hinh t h i n h d mdi trUdng nudc ndng nhu cie Idp mdng, eic bay nhd trong
da t r i m tich, doi hdi p h i i
cd dp p h i n g i i i cao e i d nhdng t i n so t h i p lan t i n
so cao mdi cd the nhin didn ehinh xic dUpc Cich
t i l p can ciia PGS dUa vao
cat dia chdn thu duac tren cau tao mudi bdng cdng nghi cCia Veritas
Trang 3i.icnang v i o chien t h u i t thu sdng, n h i t
• cjmers kdp lai kdo d nhCfng dd siu khic
.,,1 ling n h u c i c ngudn t^o sdng kdp v i b i o t o i n cic
dac diem cua tin hidu thu trong q u i trinh xif ly sd lidu thyc
dja [1.2]
Lira chon cd y nghia
Cdng nghd BroadSeis cd sOrc h i p d i n Idn trdn thj
trudng djch vy dja v i t ly vdi khoing 42.000km' dja c h i n
3D da dupe thu nd hoic dang tidn h i n h trdn t o i n thd gidi
Trong sd dd, khoing 1 ll khdi tUOng thudc vd cic dd i n dia
ehin khdng ddc quydn (ho^c cdn goi t i dd i n da khieh
hing) Nhd eP chd b i n sin p h i m thu dupe trdn cung mdt
dien tich t h i m dd cho nhidu ngudi ndn g i i b i n ed thd h^
t h i p ddn mdc thi trudng chap n h i n dupe, trong khi cdng
ly dja v i t ly v i n cd lai mic dCi chi phi d i u lU dd cd sin
p h i m dd eao hpn r i t nhidu so vdi dd i n chi phuc vy cho
mdt khich h i n g Tuy nhidn, Cdng ty Dja v i t ly r i t nhay
c i m ddi vdi trich nhidm trong vide chpn g i i i p h i p cdng
nghe dUa tren nghd t h u i t "hop den" trong xd ly sd lidu
(tife la tuydt ddi giCr bi m i t , khdng chuyen giao nguyen ty
cdng nghd ndi trdi ra ngoii) Vi t h i , chi cd cie dai gia d i u
khi CO vdn Idn de d i u tunghien cdu tai nguyen mdi du sde
thue rieng eong nghd hien dai nay
CGGVeritas mong mudn, edng nghd ciia hp dupc
hieu rang g i i i p h i p BroadSeis thUc ra la mpt gdi sd lieu
dja chan 3D va 4D day du, thu dUoc tif thiet bj phat - thu
lai d i t theo dp sau bien thien WesternGeco g i n d i y da
dung each t i l p can nay eiing vdi viec dUa v i o sd dung
ObliQslant streamer (streamer nghieng) CGGVeritas eho
rang, yeu to chii y l u trong he edng nghd ciia minh l i
dimg eie streamer Sentinel cdng do Sercel sin x u i t v i
duac diing rdng rai trong n g i n h d i u khi bdi nhidu cdng
ty dia vat ly {ngoai trCr PGS v i WesternGeco ed thiet bj
rieng ciia hp) Streamer cdng eung e i p t i n sd t h i p mong
mudn v i nhieu t h i p eung nhu k h i n i n g ed the dupe lai
dat d dp siu nUdc b i l n Idn hOn eic quy dinh chuin eiia
nganh d i u khi Cdng nghd dien tir t h i he mdi cho phdp
ghi so lidu t h i p den 2Hz, md rpng them 1 - 2 octaves cho
m i l n kdt thuc t i n so thap eua pho, npi tdn tai thieh thirc
trong phep ghi tin hieu cd ich chinh xac hon so vdi nhieu d
mien t i n sd niy Viee k i t hop thu sdng b i n g thiiy dia ehin
ky (hydrophone) tan sd thap v i g i i m nhieu do streamer
edng dUa tai la rat cP ban ddi vdi g i i i p h i p d i i bang rdng
(broadband solution) [3]
Trong mdt b i i bao trUde day, CGGVeritas md t i
t i n sd t h i p n i y dpc theo d i y c i p v i "tinh da dang ciia notch" dupc khai t h i e nhU thd n i o d l loai bd nhidu "pia" cung nhu trong k y t h u i t h i l n thj hinh i n h Sdng con thu dupc c i cho t^ sd tin hidu/nhidu cao v i cho dd rdng toi
da ciia b i n g t i n , giiip cho eic hinh i n h rd rang hon ve hinh thd eic ddi tUpng d n h i l u dd s i u khic nhau trong Idng d i t Ttnh da dang cCia dd s i u ciia streamer, hinh d^ng ciia c i p v i sy da dang cOa "streamer ghost notch"
cd thd dupc didu chinh cho cic myc tidu khic nhau sao cho tinh da d^ng cua notch v i ph6 d i u ra dupe t6i Uu hda cho mdi dd i n nghidn cu'u/thim dd Hinh dang ciia
c i p dupc thidt kd phu hpp vdi dd siu mdc nude, d6 siu ddi tupng nghidn cdu v i l i t c i t tdc dd t r u y i n sdng trong didn tich nghidn edu
CGGVeritas dang dUa BroadSouree, mdt ngudn tao sdng nhidu t i n g duoe ddng bd hda (synchronized multi-level source) kdt hpp vdi n i n g c i p cic t h u i t t o i n xir ly de loai nhidu "ma" eiia ngudn Oieu n i y cd nghia la eung cip cic t i n sd t h i p cCing loai cho ngudn sdng lai d i t chim siu trong nudc thdng thudng, md rdng phd trong mien tan so cao d l cho dd p h i n g i i i lot hOn v i l i m rd hon hinh inh ciia eic t i n g d i t dudi siu
Theo CGGVeritas, c i i t i l n cd y nghTa nhat tren s6 lieu BroadSeis ciing vdi BroadSouree la loai bd "source ghost"
v i t i n g cie t i n sd eao Bdi BroadSeis da cung cip cic tin
so t h i p khi diing mdt ngudn tao sdng quy Ude nen nguon
da e i p chi c i n giiip n i n g them dd rpng cua d i i t i n so thap d mdc tdi t h i l u Cdng ty n i y eho bilt, khi sir dung BroadSeis, cic ngudn sdng d i ed the p h i t cic tin hidu co
t i n sd t h i p hon 3Hz Dong thdi vdi vide mdt nguon bang tan rdng duoc tridn khai d mue nudc siu, tiic do tan so sdng dupe n i n g Idn trong k h o i n g 7 - 20Hz, didu nay rit
cd ich cho vide lam rd hinh i n h cie Idp d i n i m dudi Idp bazalt hoic dUdi mudi
I\fldl p h i n khdng l i c h rdi ciia phUOng p h i p thu song dja c h i n b i l n cua CCGVeritas l i bd thiet bj cd chdc nang
r i i lidn tyc xudng nude cic m i y Nautilus cua Sercel, mot cdng cu d l q u i n ly djnh vj i m hpc, k i l m soit dp siu va
l i i t y ddng (dinh vj t y ddng) d i y c i p thu sdng ket hpp tai
t h i n h mdt bd thiet bj k h i o s i t tich hop Ndi cich khac Nautilus dieu chinh vide t r i l n khai tU ddng ngudn song,
m i y thu sdng de phii 3D tdt n h i t khu vUc nghidn eilu/ tham dd va cung c i p k h i n i n g lap lai cic thdng so 4D duoc n i n g c i p b i n g cich kdt hpp may nay vdi eac day
c i p thu (bd tri nhu hinh ldng chim) giup dieu chinh d6 Idch hudng, k i l m soit dd siu va d i l u khiln phUflng vj eiia
t h i l t bj thu p h i t sdng chfnh x i c hon nda, n h i m phucvu
Trang 4Hinh 3 Tdu Ola chdn Ocean Sirius [3]
cho cdng t i c xic djnh sp bd cic vj tri nghidn ciru/thim
dd Ngoii ra, n h i t h i l t k l cdn sd dyng g i i i p h i p kiem kd
streamer d l p h i t hidn v i d i l u ehinh dd Idch hudng Idn
eua eip thu khdng duoc d u kidn trudc Vi du, do Idch
hudng do eic ddng b i l n manh g i y ra cung nhu sd dyng
phan mem ndi suy thdng minh dd nang eao do chinh xic
trong vide xic dinh vj tri m i y thu trdn hidn trudng trong
qua trinh xir lysd lidu
Lpi ich cua cdng nghd mdi nay l i g i i m d i n g ke sy
can thiet phii dan them tuydn k h i o s i t hoac p h i i thu
no lai khi xiy ra trudng hpp sd lieu thu dupe d mdt doan
tuyen nao dd khdng dii hoic chat lupng kem vi eie khiem
Ichuyet niy co t h i dupe khie phyc b i n g each sd dung so
lieu tot eua cac d i l m do khic theo cic phuong vj khie
thay vao v i d i l u n i y mang tai gia tn kinh t l Idn nhd t i l t
Iciem thdi gian, edng sdc cung nhu ed so lidu sdm cho eie
hoat dpng t h i m dd tiep theo CGGVeritas cho rang, tif
mpt edng ty nhd nhutig vdi vide sif dyng IBALT BroadSeis,
hp dang vUpt Idn cai bdng ciia WesternGeco v i PGS tren
thj trudng thd gidi trong ITnh vyc tham dd dja chin b i l n ,
du rang trong cudc canh tranh niy, con dudng dan d i n
chien thing cdn rat n h i l u cam go
Trong cic n i m cudi the ky XX, CGG chi l i mpt cdng ty
nhd, chiem thi p h i n khidm ton trong thi trddng dja c h i n
bien Cac tdn tudi n i m gidthj trudng the gidi giai doan dd
ta Western Atlas, GecoPrakIa va PGS Tuy nhidn, CGG da cd
cai nhin loan dien de chuin bj cho phat trien tUOng lai,
the hien trong cocau td chdc vdi 3 bo p h i n g i n k i t nhau:
bo phin nghidn cdu - xd Vj so lieu (Trung tam Massy),
Cong ty sin x u i t m i y mde t h i l t bi (Sercel) va bd p h i n thi
c6ng thuc dja (cic t i u dia chan) Ve n h i n sy, CGG chpn
ngu6i rit ky, hau het la cic sinh vidn gidi tdt nghidp eac
trucfng dai hpc Phip (khoa t o i n , ly, didn td, d\a chit) va
^Upc cong ty cap lUOng (Idn hon hoe bdng thdng thudng)
tfl hpc tiep nganh dja vat \-j d Vidn Dau khi Phap, sau dd
fleu trd thanh cic ky sU cd tai n i n g V l cO sd v i t c h i t
CGG mua tau bien hidn dai nhat ciia Aker Maritime (Nauy), Sercel mua lai cie edng ty chuydn sin xuit miy dja v i t ly (nhu Syntron, Sodera, Multiwave Geophysical)
dd nhanh ehdng tang tiem lUe ky thuit Nam 2006, CGG hpp n h i t vdi Veritas DGC (Nauy), trd thanh CGGVeritas Nhd cd tidm lue t i i chinh mdi, CGGVeritas trang bi mdt ham dpi t i u Idn, dii su'c thUe hidn cic du i n Idn de cd the tham gia canh tranh trdn thj trUdng i h l gidi Nam 2009, ho mua thdm Cdng ty Dja v i t ly bien Wavefield Inseis (Nauy)
Hien nay, CGGVeritas dang dat myc tidu trd thanh cdng ty dja vat ly bien Idn n h i t thd gidi Tuy nhidn, CGGVeritas eung dang ddng trude nhidu khd khan vi he
sd no/tai sin len den 37 - 39% va con sd nay khd g i i m trong didu kidn kinh t l l o i n eau suy thoii Mac dii vay,
CGGVeritas v i n dau tU 1 ty USD 6e nang eip dpi tau v i
mdi day ho mua them t i u dja chin Oceanic Sirius vdi t h i l l
kd mdi ciia Ulstein X-Bow, mpt loai tau dupe WesternGeco
r i t Ua chudng
Hien nay, CGGVeritas dang chuan bj hidn dai hda dpi t i u , duy tri sd lupng 15 t i u 3D cdng suit Idn, 4 tau 3D/2D cdng suit t h i p , thich nghi cac tau nay vdi edng nghe thu p h i t sdng da phUOng vj va cae ky thuat t i l n bo khac Cdng ty ehii trUPng t n l n khai cac djch vy eho eic thj trudng khu vyc dac bidt, ky kdt eie thda thuin mdi vdi
Sevmorneftegeofizika (SMNG) ciia Lidn bang Nga 6e hinh
thanh lidn minh chien lupe giiip Nga va cie nude thude Lien Xd cu xiy dUng thj trUdng cho tau dja chin Cac lien minh chidn lupe trUdc day d i dupe t h i l t lap vdi Viet Nam
va Indonesia [1,2,3]
He thong pha vd via da tang
Cdng ty i-TEC d i sin xuit v i thir nghidm t h i n h edng
he thdng p h i vd via nhidu doan (a multistage fracturing system) vdi ten gpi i-FRAC CEM system, sd dung eho cot dng ehdng gieng d i i d i t r i m xi mang va dng Iifng (liner)
He thong gdm dan trdn duac kich hoat v i nhieu doan dng ndi nhau, ed 16 hd va ong Idng truot d l md hoic ddng cic
16 hd dd, dupc l i p dat t h i n h cum trong mdi doan d l tidp xuc tdi da vdi t i n g chda Mdt t h i l t bi don, khi dupe kich ddng se md tat ea van cua cic doan dng tdt va tiic do dan
ed nhilu kich cd khic nhau (de tdi Uu hda t i c ddng tao
khe ndt trong via) 6\sac b i n ra, tao mpt i p suit manh de
p h i vd tdp vo XI mang v i tao ke nut trong t i n g chda Cd
Trang 5i i luan trong mdt g i l n g v i mdi doan cd the
HI I i 20 ihidt bj b i n via Vide d i t he thdng n i y trong
gieny dtioc thUc hidn ehl trong mdt l i n , khdng c i n p h i i
diing can trye, d i y tdi hay cic t h i l l bj cudn 6ng (coiled
tubing units) Vide xd ly khe m i l dupc t i l n h i n h b i n g
ddng t i e bom lidn tyc gidng nhu hd thdng b i n t i n g md
via thdng thudng Hd thdng p h i vd via da t i n g dupc thidt
kd dd cd t h i kdo Idn mat d i t sau khi xd ly v i dung tidp cho
eic gidng khie
Cong nghd kilm tra cho rd rl
Cdng ty Omega Well Monitoring (thudc T i p d o i n
Reservoir Group) vda dua ra thj trudng thidt bj p h i t hidn
chd rd ri trong Idng g i l n g (Leakator) mdi nhit D i y l i
cdng cy dupe tdi Uu hda d l xic dinh vi tri cic ch6 rd ri v i
kidm soit ddng luu i h l trong ldng gidng, d i p dng ydu c i u
n i n g cao hidu q u i v i g i i m chi phi trong cdng t i e kidm
tra su l o i n ven ciia gidng Vide sif dung t h i l l b\ n i y r i t
don g i i n , chi c i n mdt td cdng n h i n didu khidn, khdng c i n
p h i i cd chuydn vidn ky t h u i t cao c i p didu h i n h Thidt bi
khdng cd bd p h i n ddng (moving part) m i cht ed eie vdng
xuyen (gpi l i 0-rings) v i eie ic-quy cd the t i e h rdi, thay
the trong q u i trinh l i m viee, Vi ic-quy l i nhdng vien pin
loai AA nen ngUdi sd dung khdng bj ring budc bdi cie
quy ehe an toan ddi vdi h i n g hda nguy hiem trong q u i
trinh van chuydn Bd nhd rdi (the modular memory) dimg
cic bd sensor da l i n g vdi sd lidu dUoc ddng bO hda tif cic sensor hpp n h i t v i cd t h i b i l u hidn dUdi d^ng do thj tuong dng vdi dd siu eua g i l n g n h i m xic dinh rd nhCftig bidn thidn ehi t i l t cua cic tham s6 ghi trong gilng Cic s6 lidu n i y eung c i p cic chi d i n v| tri cOa cic ch6 rd rl Cic module sensor dimg khdng b i t budc (optional) cd thd cung c i p thdm nhOng sd lidu khic c i n theo ddi nhusy
bidn thidn ciia nhidt dd cic Idp d i t d i , cudng dd ddng luu
rd rl, phuong hudng ehiy ciia ddng luu t h i Cic sensor<i6
thd sip x i p v i didu chinh tin hidu d i u ra dd t i n g d$ IShay tdi uu, d i p irng dupc ydu c i u p h i t hidn nhdng dj thudng yeu n h i t eiia nhidt dd v i ddng luu t h i T h i l t bj cung cung
c i p k h i n i n g dpc sd lidu d i u ra ngay til m i t d i t (ngoii
midng gilng) Cic ydu c i u eiia cic dieh vu ridng Id khic
r i n g budc bdi didu kidn gidng cy t h i se dupc n h i cung
c i p d i p dng b i n g cich lip ghdp thdm cic module phy
trp ndu khich h i n g ydu c i u [4]
Trln NgocToAn (giOithiiii)
T i i lidu tham k h i o
1 w w w offshore-engineer.com
2 Andrew McBarnet Building a tour de force, www
offshore engineer.com
3 Oil and gas journaL 1/2012
4 www.omegawell.com