NGHIEN CCfU-TRAO DCil QUY TRiNH DAU LAP HE DAM CONG X9N TREN GIAN KHOAN TLf NANG / / THE PROCESS OF MOUNTING THE CANTILEVER BEAMS ON JACK-UP RIG PGS,TS Nguyin Tnldng Thinh', KS Tran Anh Tuin' 'Trudng Dai hpc Sfl pham Ky thuit TR Hd Chi Minh 'Cdng ty Che tao Giin khoan Dau (PV Shipyard) T6MTAT Bdi bdo dUa cdc budc (quy trinh) tiln hdnh ddu lap hi thing ddm cdngxdn trin gidn khoan tu ndng bao gdm cdc budc: LUa chon phUdng phdp ddu lap din cdng tdc chudn bi mat bdng thi cang, chudn bi mdc cau vd tinh todn lifa chon cdc logi ciu dl thtfc hiin qud trinh ddu lap he thing ddm ang xdn Hi tiidng ddm cdng xdn dUdc chl Ida gom Imi ddm chinh, cd khd ndng dich chuyen dgc theo thdn gidn khoan nhd hi thong trUdt de dUa sdn khoan vd cum thilt bi khoan din ding vi tri gilng khoan cdn thifc hiln Quy trinh dl rd ndy, dUdc dp dung cha qua trinh ddu lap hi thdng ddm cdng xdn trin cdc logi gidn khoan tu ndng ndi chung vd trln gidn khoan tif ndng Tam Bdo 03 ndi rilng Tfl khda: Ddm cdng xdn, gidn khoan tU ndng sdn khoan, cum thilt bi khoan The paper shows the steps (the process) mounting cantilever system on Jack Up Rig includes the steps: Select mounting methods until preparation constritction plan, preparation hook the analysis option the crane to carry out the process of mounted cantilever beam system Cantilever was built includes two main catilever capable af moving along the body of Jack Up by slide system to put drill floor and cluster dritting equipment to drill wells ri^t position to make This process is applied to mounting cantilever system on general Jack Up Rig and Tam Dao 03 Jack Up Rig particular Keywords: CantUver lack up rig drillfloor, cluster drilling equipment B ISSN 0866.7056 TAP CHi CO KHl VIET NAM, Sd nim 2016 www.cokhivietnam.vn NGHieN Cliu - TRAO D I I.GIOITHIEU CHUNG 1.1 l o n g qnan vl giin khoan tfl ning va dam cdngxdn (Cantilever) d Viet Nam, hau het cic gimg khoan tim thiy Aaac phin bd tren them luc dia phia Nam vdi mvic nudc bien tfl 150m nflde trd xudng, rit thuan Ifli cho viec sfl dung cic giin khoan til nang cdng tic khoan thim dd va khai thic Diy cung li loai giin khoan hien dang chiSm tl ti-png ldn tdng so gian khoan tham di dpng dang boat dOng vi dang dfloc thi cdng che tao tren toan the gidi Gian khoan til ning gdm cac bd phin chinh: Thin gian, chin giin, khdi nha is, thip khoan, he thdng ning ha, he thong dim cdng xdn Trong do, dam cdng xdn (CMtilever) la mot nhflng bd phin quan trpng nhat cua gian khoan tU ning Dam cdng xdn la mdt phin dia he thdng k a can dd sin khoan va cum thiet bi khoan dupe lien ket vdi than giin khoan bang eic co cau dd va gifl Dam cdng xdn li dim td hop sieu tiildng sieu n-png, dflpc che tao tfl thep cd cUdng dp cao Tiet dien dam cdng xdn dang chfl I dfloc td hpp tfl cic thep tim Tren he dim cdng xdn (Cantilever) thfldng dflpc bd tri cic sin de thiet bi khoan va cac thiet bi khoan, he thdng pa lang vi khdng gian cdng nghe can thiet it nang h?, sfla ehfla cic thiet bi khoan dap flng yeu cau cfla hojt dpng khoan ndi rieng vi eia giin khoan tfl ning ndi chung Dim cdng xdn tren giin khoan tfl ning cd dang tinh tten tile li dam cong xdn chi di chuyen sau hoac ve phia trfldc dpc theo thin giin, giup cho sin khoan vUon xa hay gan ve thin giin Dim cdng xdn cd the dich chuyin dupc nhd he thdng binh ring - ring (he thdng thuy lUc) day trflflt dim edng xdn Dam cdng xdn (Cantilever) li mOt diinh phan quan trpng cflahethdngketcauda cvun thiet hi khoan gan lien vdi qui trinh thiet ke, che tao he thdng ket ciu dd cum thiet bi khoan v i cdng nghe thiet ke, che tao cic loai gian khoan dang dfloc nhieu nflde nghien cflu de thiet ke, che tao, dd cd Viet Nam 1.2 Phan tich va chon phUtfng an dau lip he dam cong xdn Dam cdng xdn cd khdi IflOng va Ueh thudc ldn nen viec chpn phuong an lap dUng la rat quan trpng Lua chpn phflong an lap dflng tdt se dem lai hieu quicdngviecnhfl:Antoin cong viec, ttft kiem thdi gian, giim chi phi nhin Iflc va trang thiet bi miy mdc 3~-^ n in Up dm,, h J\ EUig ^ r Hinh L Luu ddu lap cho ddm cdng xdn ISSN 0866 - 7056 TAP CHl CO KHI VI$T NAM, Sd nam 2016 www.cokhivietnani.vn NGHIEN cuu-TRAO D | vdi vi tri cua gian trOn bii vi vi tri dau Tfl nhflng thuan loi va hgn chl cfla hai lap cua dam cung trang thiet bi miy mdc san cd, phflong an dau lap da neu, phflong in chpn Ii de dau lap dim cdng xdn, cd hai phflong in dau phflong in diu lip tfl hai bOn than gian lap li dam dflpc dfla vio vi tri tren giin tfl phia sau than gian hoic tfl hai ben than giin QUA TRlNH CHUAN BI DAU L A P H | DAMC6NGX6N 1.2.1 Dau lip titphia sau gidn khoan 2.1 Chuin hi mat bang Ddi vdi viec dau lap dim cdng xdn tfl phia sau gian khoan, ta dflng cau 1.250 tan lit Mat bang la khau diu tiln cdng dflng dflng dam theo chieu lip dat Dam dflpc tic dau lap dam cdng xdn Nd anh hudng rit ldn quay dung hudng, di chuyin cau ve vi tri da tinh tdi ket qua cung nhfl hieu suat cdng vile Vi v|y, toin trfldc dl thUc hien cdng viec lip dvti^ Sau trfldc bat diu mptcdngviecphiicdsu chain dd, dim dupc dfla vio vi tri dau lap, cin chinh bi ve mat bang lam d l qui trinh diu lap dflpc chmh xac va tien hanh gdng chdng Nhfl viy, thu^n Ipi, cac vi tiri Iim viec khdng inh hfldng viec dau lip dam cdng xdn tfl phia sau gian gap din nhau, giim thilu sfl tic dOng cfla thdi tiet, mdt sd kho khan nhat dinh nhfl da nlu cung nhfl tJn dpng dflpc tdi da cac dieu kien thi cdng hien co Mat bang thi cdng phai dim bio dil dien tich, ning chju Iijc d l cac cau ldn di chuyin va can lip cic kit can silu trfldng sieu trpng Mat bang thi cong bao gdm, mat bing di chuyen cuadamcdngxdntflvitrichetaotdivi bi chuin hi ii cau len gian, mjt bing di chuyin cua cau qui trmh diu lip vi mgt bing Up dat cua dam edng xdn tren giin Hmh Bau idp dim til phia sau gidn khoan 1.2.2 Ddu lip tilhai ben thingiin khoan Viec dau lap dim tfl hai ben dian gian cung dupe thuc hien vdi cic budc tuong tU nhfl diu lip dam ta phia sau, nhflng nd khic phpe dupc mOt sd h?n chl cfla viec diu Mp tfl phia sau nhU: Quang dudng di chuyin dam tdi vi tri Mp dit ngin, it phai quay tii, khdng gian cho cau va xe nang ho?t ddng rOng, it chUdng ngai vat phai thu dpn cho vile di chuyin cung nhU diu lap; nen bii da dflpc san lip trfldc nen dn dinh hon mnh Sadd mgt bdng thi cdng ddm cdng xdn ISSN 0866.7056 T A P CHl CO KHi V i t T NAM, SdVnam 2016 www.cokliivietnam.vn I NGHIEN CCfU-TRAO D O I UU Hmh SO dd mgt bing di chuyin vd bdi cku&i bi lip dUng ddm cdngxdn trtn cic^ifb^ml- ^^fT°'' '•'" ^ " ^''" '*P ""^ * ^ P*" ã*"ô>ã d 'tog xdn dfloc djt I flinA W triitaij Up dim cdngxdn trln gidn Ngoai ra, lip xong dim cdng xdn dflpc chdng lit bing kit cau chdne lit Cic rfi inirn din hflong va kit can dd dam dupc lap, han hoin thi|n L o c kh! lip dim c t g ' x t o ^ e T d " S dim cong xdn vdih^ ben thinh gdi tniot dSnhfldngli 1,5mm nen kL lip cae gii t r ^ p ^ L h u d S phil dim bao ttnh ddng tim va ddng phing cua cic gdi niy irupt aan hUOng 2.2 Chuan bi mdc cau d l ciu dim cdng xdn Mdc ciu dupc chl tao vi lip djt theo ttiilt kl Moi hin gifla mdc ciu va dim nhii An„r 1,-s tra khuylt tat bing phflong phip ttifl miu vi silu am 100% v a ^ d f l o r i l ^ ^ l a n ^ ^ hx ? MnT [2], cic bao cao niy dfloc kem vio hd so an toin can Mp ^ ' ^ "^ ^^° '^° ^ ^ ^ ^ ISSN 0866-7056 TAP CHl CO KHl VlfiT NAM, Sd nam 2016 www.cokhivietnam.vn NGHieN CLCU-TRAODOI M6e cau 120T M6c cau 120T "7^; >z m rronq torn Kinh Sd dS bd tri moc cdu ddm cdng xdn 2.3 Tinh toan va chon cic thdng s6 cho cSu Can cu! tai trgng cda dam la 141.5 T [ ] vi tri dau lap d ^ tr^n g i ^ vk can cijt vao sd dd phan bd kh^ nang tai cia cSu ta chon cac thdng sd cda cSu nhU bang sau: Bdng Cdc thdng s3 ciia cdu tai thdi diim ddm d vi tri ddu lap CC6680 lii Lo^ cau Trpng Khdi Chilu dai Bin kinh lupng cau Iflpngddi cin(M) quay (M) trpng (T) (T) 330 240 72 43 193.3 Tai trpng dim(T) He sd sfl dung tai 141.5 0.732 Dfla theo tieu chuin cap vi cic trang bi [4], ta chpn eip cd ning tai 120 T, dii 26 mit, ma ni 120 T cung mdc can 120 T Bdng Cdc thdng s6 cdp cdu Idp Sdcip Mdtacap Ll-2 Cip thlp Tai trgng ning cho phep (T) 120 Chilu dii cip (M) 26 Sdlflong(Spi) 02 Bdng Cdc thdng ma ni cdu lap So ma ni Tai trgng nAi^ cho ph^p (T) ISSN 0866-7056 TAP CHf CO KHf VI|T NAM, Sd7 nam 2016 www.cokhivietnani.vn Sd liftfng (Cai) NGHieN Cliu-TRAOOOl I Hinh Sd dd bd tri doi ti A ™ kb?w„ r"^^ f T^° "" * ^ ^ ''* ã** ã""ô '** ^"^ =ô" ^ ^""S teô"g vat ning, ta chpn khdi Iflong vi V, tri dat ddi tt-png Chpn khdi luong va vi tti dat doi trpng phai d L b i o tl vi m m ddin l ™ r 'bao t f Tkhi ' ' ciu ^ ' ' ^quay ' " " «vi' *di' "chuyin ^ « ' ' ^ddi ^ " 8ttpng " l * khdng ^ " ^ e 'biô vfldng " " * ' ã v^t " ' ôcin