Hauv kev tshawb nrhiav roj thiab roj hauv Abu Dhabi, UAE, qhov txuas ntxiv - ncav cuag tus lej No. 29 tau tsoo lub ntiaj teb cov ntaub ntawv txuas ntxiv - mus txog qhov dej drilling nrog ib qho kev xav tsis thoob -trip drilling footage ntawm 4389.12 meters (14,400 ko taw). Qhov dej no tsis tsuas yog ua tiav 10 hnub ua ntej lub sijhawm, tab sis kuj tau teeb tsa qhov ntev tshaj plaws ϕ311.15 hli (12¼ nti) cov ntaub ntawv zoo hauv keeb kwm ntawm United Arab Emirates National Oil Company (ADNOC) nrog qhov zoo ntawm 508.4 meters (1,668 ko taw) dhau qhov thib ob - qhov chaw zoo. Tom qab qhov kev ua yeeb yam no yog qhov tseeb superposition thiab kev ua tiav ntawm rau lub thev naus laus zis tseem ceeb, uas ua ke daws ntau yam teeb meem uas tau cuam tshuam kev lag luam hauv kev txuas ntxiv - mus txog qhov zoo drilling, xws li cov txheej txheem nyuaj, tsis tshua muaj drilling ceev, siab tiv thaiv - kev sib tsoo nyuaj thiab cov cuab yeej fragility.
Nyob rau hauv ib txwm txuas ntxiv -mus txog qhov dej drilling, cov pob zeb nyuaj tsim ib txwm yog qhov tseem ceeb txwv qhov drilling ceev thiab lub neej ntawm lub cuab yeej. Zoo 29# tau ua tiav qhov kev hloov pauv hloov pauv hauv cov pob zeb nyuaj los ntawm kev tso tseg cov pa 7-blade PDC laum me ntsis thiab siv 6-hniav PDC laum me ntsis ua ke nrog lub pob zeb diamond tshiab ridged cutter.
Qhov kev xyaum tshiab no ua ke nrog kev txiav thiab txiav lub peev xwm ntawm PDC laum me ntsis nrog lub peev xwm ntawm cov menyuam me, tso cai rau lub laum me ntsis kom tsis txhob cuam tshuam cov pob zeb hauv cov pob zeb nyuaj, tab sis kuj ntxiv cov pob zeb los ntawm kev sib tsoo, yog li txhim kho cov cuab yeej drilling ceev. Nyob rau tib lub sij hawm, los ntawm equipping lub φ16 hli loj- loj cutter, nruab nrab parabolic profile thiab 9-nozzle tsim, qhov drilling efficiency ntawm lub laum me ntsis nyob rau hauv cov pob zeb nyuaj formations tau tiav ib tug zoo leap. Qhov loj-loj cutter txhim kho qhov hnav tsis kam thiab cuam tshuam tsis kam ntawm cov laum me ntsis, thiab qhov nruab nrab parabolic profile optimizes lub zog faib ntawm lub cutter, txo kev co thiab hnav thaum lub sij hawm txiav. Lub 9-nozzle tsim kom ntseeg tau tias cov kua dej drilling tuaj yeem sib npaug thiab ua haujlwm tau zoo ntawm lub tshuab txiav, ntxiv kev txhim kho cov nyhuv txias thiab kev ua haujlwm ntawm cov laum me ntsis.
Kev tsim kho tshiab ntawm qhov sib dhos hauv qab (BHA) yog lwm tus yuam sij rau kev ua haujlwm zoo ntawm qhov dej 29 #. Lub qhov dej siv lub laub- hom rotary steering system nrog hlau - mus rau - hlau foob. Qhov system no muaj kev cuam tshuam zoo heev thiab kev vibration tsis kam thiab tuaj yeem tswj tau qhov kev taw qhia ruaj khov drilling hauv cov txheej txheem nyuaj.
Nyob rau tib lub sijhawm, lub laum hlua sib dhos tau ua kom zoo dua qub, siv φ149.2 mm (5⅞ inch) laum kav (suav nrog 390 G- qib + 210 S-qib) los hloov cov tsoos φ127 mm (5-}inch) laum rau cov kav dej. Qhov loj no - loj laum yeeb nkab tsis yog tsuas yog txhim khu lub rigidity thiab stability ntawm lub laum hlua, tab sis kuj txo kev co thiab hnav thaum lub sij hawm drilling. Tsis tas li ntawd, nrog MWD (kev ntsuas thaum drilling) thiab φ307.98 hli (12⅛ inch) reamer (25.91 meters los ntawm lub laum me ntsis), kev tswj xyuas meej ntawm high-pressure interlayer formations tiav. Kev siv cov reamer zoo txo qhov tsim ntawm lub qhov dej hauv lub qhov dej thiab cov kauj ruam, txhim kho lub qhov dej zoo, thiab muab kev lav zoo rau kev ua haujlwm tom qab drilling.
Thaum lub sij hawm drilling txheej txheem, kev tsom xam ntawm cov ntaub ntawv nyob ib sab yog qhov tseem ceeb rau kev tsim qhov tsim nyog drilling tsis. ADNOC thiab Schlumberger engineers tau kho qhov ntsuas qhov ntsuas txoj hauv kev rau Well 29# los ntawm kev txheeb xyuas cov ntaub ntawv zoo nyob ib sab. Qhov no AI-pab kev soj ntsuam txoj kev ua tiav txiav txim siab ntau yam xws li laum kev ruaj ntseg, cov tshuab drilling ceev thiab kev vibration suppression, thiab txo qhov cuam tshuam kev co los ntawm optimizing drilling tsis.
Tshwj xeeb tshaj yog, AI algorithm txheeb xyuas qhov kev pom zoo ntawm kev sib xyaw ua ke ntawm qhov drilling tsis nyob rau hauv cov txheej txheem sib txawv los ntawm kev kawm cov ntaub ntawv drilling ntawm cov qhov dej uas nyob ib sab. Tom qab ntawd, raws li qhov tseeb tsim cov xwm txheej ntawm Well 29 #, qhov kev ntsuas qhov drilling tau hloov kho kom ntseeg tau tias lub laum me ntsis tuaj yeem ua tiav qhov ceev tshaj plaws drilling ceev thaum tswj kev ruaj ntseg. Qhov no precisely customized drilling parameter roadmap tsis tsuas yog txhim kho drilling efficiency, tab sis kuj txo qhov xyaum me ntsis hnav thiab cov cuab yeej tsis ua hauj lwm, ua kom cov efficiency thiab kev nyab xeeb ntawm cov txheej txheem drilling.
Qhov teeb meem ntawm cov kauj ruam yooj yim tsim nyob rau hauv qhov ntev shale zoo seem tau ib txwm yog ib qho teeb meem uas plague txuas mus txog qhov zoo drilling. Zoo 29# ua tiav "tsis pom" phab ntsa trimming los ntawm kev siv lub φ307.98 hli (12⅛ nti) bidirectional reamer thiab tungsten carbide ntxig txiav cov ntsiab lus. Qhov no bidirectional reamer tuaj yeem ua haujlwm reaming thiab kho kom zoo ib txhij thaum lub sijhawm drilling. Los ntawm qhov tseeb txiav ntawm tungsten carbide ntxig txiav cov ntsiab lus, lub qhov nqus dej shrinkage thiab cov kauj ruam tsim tau txo qis. Nyob rau tib lub sijhawm, vim qhov hnyav hnyav hnyav thiab cuam tshuam tsis kam ntawm tungsten carbide inserts, nws tuaj yeem tswj xyuas kev ua haujlwm ruaj khov hauv cov txheej txheem nyuaj, txhim kho kev kho kom zoo. Qhov no "tsis pom zoo kho" thev naus laus zis tsis yog tsuas yog txo qhov zaus ntawm rov qab reaming, tab sis kuj txhim kho lub qhov dej zoo, muab cov channel smoother rau kev ua haujlwm tom qab drilling.
When drilling in dense well network areas, collision risk prevention has always been an issue that needs to be focused on. Muaj kev sib tsoo siab heev ntawm Well 29# thiab Well 26#, nrog rau qhov sib cais ntawm azimuth tsuas yog 0.88. Txhawm rau kom ntseeg tau tias kev nyab xeeb drilling, ADNOC tau txais ib txoj hauv kev sib txuas cov kev pabcuam geomagnetic nrog ntau-chaw nres tsheb tsom xam. Los ntawm cov kev pabcuam geomagnetic, cov ntaub ntawv txoj haujlwm ntawm lub laum me ntsis tuaj yeem tau txais hauv lub sijhawm tiag tiag, thiab ua ke nrog ntau -chaw nres tsheb tsom xam tshuab, kev txav ntawm qhov laum me ntsis tuaj yeem raug kwv yees thiab hloov kho. Txoj kev no nce qhov sib cais ntawm azimuth mus rau 1.77 (kev nyab xeeb pib), yog li tshem tawm qhov kev ntsuas gyroscope thaum xub thawj tau teem tseg ntawm 5181.6 meters (17,000 ko taw). Qhov no tsis tsuas yog txuag ntau lub sijhawm thiab tus nqi, tab sis kuj txhim kho qhov tseeb thiab kev ua haujlwm ntawm kev tiv thaiv kev sib tsoo. Los ntawm kev ua tiav daim ntawv thov ntawm cov kev pabcuam geomagnetic, Well 29 tau ua tiav zam qhov kev pheej hmoo ntawm kev sib tsoo nrog Well 26, ua kom muaj kev nyab xeeb ntawm cov txheej txheem drilling.
Thaum lub sij hawm drilling txheej txheem, kev ua tau zoo ntawm cov dej drilling yog qhov tseem ceeb heev rau kev tiv thaiv cov cuab yeej downhole thiab ua kom muaj kev nyab xeeb ntawm drilling. Zoo 29 siv cov roj ntxhia zoo heev-raws li cov dej drilling, thiab ntxiv cov txiv qaub thiab alkalinity tswj cov neeg ua haujlwm los ua "ob npaug-}cov mis tsis muaj zog" nrog cov kua qaub tiv thaiv thiab tiv thaiv -stick- plam zog. Qhov ceev ntawm cov dej drilling no yog maj mam nce los ntawm 1.32 g / cm3 mus rau 1.44 g / cm3, uas tuaj yeem cuam tshuam cov corrosion ntawm CO₂ / H₂S thiab txo qhov tshwm sim ntawm lo{11}} plam. Cov roj ntxhia tau zoo heev-raws li cov kua dej drilling muaj lubricity zoo thiab ruaj khov, thiab tuaj yeem tswj xyuas kev ua haujlwm ruaj khov hauv cov txheej txheem nyuaj. Nyob rau tib lub sijhawm, ntxiv cov txiv qaub thiab alkalinity tswj cov neeg ua haujlwm ntxiv kho tus nqi pH thiab alkalinity ntawm cov kua dej drilling, txhim kho nws cov corrosion kuj thiab tiv thaiv -stick- plam muaj peev xwm. Qhov no "ob npaug-tiv thaiv-formulation" tsis tsuas yog tiv thaiv cov cuab yeej downhole los ntawm corrosion thiab hnav, tab sis kuj txhim kho kev ruaj ntseg thiab kev nyab xeeb ntawm cov txheej txheem drilling.
Los ntawm cov pob zeb diamond sib xyaw txiav cov khoom siv rau geomagnetic siv cov kev pabcuam, txhua qhov kev siv thev naus laus zis hauv Well 29# yog rov txhais cov kev txwv ntawm kev ncua mus txog qhov dej. ADNOC tau ua pov thawj los ntawm 4,389-meter "ib-trip drilling" ntawm qhov dej no uas nyob rau hauv kev lag luam roj thiab roj, cov ntaub ntawv tawg tsis yog qhov yuam kev, tab sis qhov tshwm sim ntawm qhov tsis muaj tseeb ntawm cov txheej txheem superposition. Qhov kev ua yeeb yam no tsis yog tsuas yog yeej kev qhuas thiab lub koob npe nrov rau ADNOC, tab sis kuj tseem muab cov ntaub ntawv muaj txiaj ntsig thiab kev tshoov siab rau kev ua haujlwm thev naus laus zis ntawm kev lag luam roj thiab roj thoob ntiaj teb. Nws qhia peb tias nyob rau hauv lub ntsej muag ntawm complex formations thiab drilling teeb meem, tsuas yog los ntawm kev nruam nruam innovation thiab technology breakthroughs peb yuav ua tau kom cov kev txhim kho ntawm drilling efficiency thiab txo cov nqi. Nyob rau tib lub sijhawm, qhov no tseem xav kom peb ntxiv dag zog rau kev sib koom tes thoob ntiaj teb thiab kev sib pauv thiab sib koom ua ke txhawb kev txhim kho thev naus laus zis thiab kev loj hlob ntawm kev lag luam roj thiab roj.
Lub 4,389-meter "ib-trip drilling" feat ntawm Abu Dhabi Well No. 29 yog qhov microcosm ntawm kev hloov kho thev naus laus zis hauv kev lag luam roj thiab roj. Nws qhia txog qhov tseeb superposition thiab kev ua tiav ntawm 6 lub thev naus laus zis tseem ceeb, thiab muab cov kev daws teeb meem muaj zog rau cov teeb meem hauv kev drilling qhov dej loj. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib thiab kev tsim kho tshiab ntawm kev siv thev naus laus zis, peb muaj laj thawj ntseeg tias kev lag luam roj thiab roj yuav ua rau muaj kev nthuav dav dav dua thiab ua tiav zoo dua.
