Ntsiab lus: radial drilling;Titanium alloy yeeb nkab; Ultra tob tob; taug qab
Tom qab: Tahe oilfield yog qhov kub thiab txias thiab kub siab ultra-qhov tob nrog qhov tob ntawm ntau tshaj 6500m, qhov kub ntawm qhov kub ntawm ntau tshaj 150 degree, thiab lub qhov siab hauv qab ntawm ntau tshaj 70MPa.
Tahe Oilfield txais kev siv tshuab sidetracking thiab high-pressure radial hydraulic drilling tshuab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau muaj kev cuam tshuam, nws tau siv cov cuab yeej siv high-pressure radial hydraulic drilling tshuab. Nws yog ib qho nyuaj rau kev sib txuas lus nyob rau hauv lub nonprincipal stress kev taw qhia reconstruction ntawm carbonate reservoir, thaum lub sidetracking nqi yog siab, lub voj voog yog ntev, thiab ntsug nrug yog loj. High-pressure radial hydraulic drilling tshuab muaj ib daim ntawv thov dav dav hauv Tahe roj. Lub tuam txhab RDS ntawm Tebchaws Meskas tau siv lub tshuab dav hlau hydraulic los laum lub qhov 50 hli, mus txog 100m. Jianghan Petroleum Machinery Research Institute ntawm PetroChina thiab Drilling Technology Research Institute ntawm Sinopec Shengli Petroleum Engineering Company kuj tau ua tiav cov kev tshawb fawb thiab kev sim ntawm high-pressure radial hydraulic drilling tshuab.
Thaum qhov kev khiav hauj lwm zoo qhov tob ntawm Tahe Oilfield tshaj 6000m, high-strength yeeb nkab txoj hlua thiab dav dav dav dav dav yuav tsum tau, thiab cov yeeb nkab hlua yuav kis tau WOB.In thiaj li yuav ua tau raws li cov uas twb muaj lawm kev xav tau ntawm radial drilling, lub radial drilling tshuab siv ib tug workover rig. thiab tubing yog npaj, thiab cov neeg kho tshuab tsom xam thiab cov kauj ruam tsim ntawm nws cov txheej txheem drilling yog nqa tawm.
Txhawm rau daws cov teeb meem ntawm lub zog qis ntawm cov yeeb nkab hlua thiab tsis zoo hloov pauv ntawm qhov drilling siab thaum lub sij hawm radial drilling hauv qhov tob ntawm 6000m thiab siab dua hauv Tahe Oilfield, cov txheej txheem radial drilling nrog workover rig thiab roj yeeb nkab thiabtitanium alloy yeeb nkabyog muab tso rau pem hauv ntej, thiab ib-txoj kev dabtsi yog khoov kauj khiav ntawm straightening seem yog optimized los ntawm cov zauv simulation. Kev cuam tshuam ntawm cov kauj kauj vojvoog, sab nraud txoj kab uas hla thiab phab ntsa thickness ntawmtitanium alloy yeeb nkab, thiab taug qab thiab cov yeeb nkab-kem qhov sib txawv ntawm qhov muaj peev xwm drilling tau kawm. Thib ob, Kev soj ntsuam rhiab heev thiab kev ua kom zoo dua ntawm cov ntsuas saum toj no yog ua los ntawm txoj kev ntsuas orthogonal. Cov txiaj ntsig tau pom tias lub kauj vojvoog thiab kev tshem tawm ntawm txoj kev khiav yog qhov sib npaug ntawm cov kauj ruam, thaum lub taub sab nraud thiab phab ntsa tuab ntawm titanium alloy raj yog ncaj qha proportional rau lawv. Yog li ntawd, qhov kev pom zoo ua ke ntawm titanium raj thiab lub kauj khiav yog: lub vojvoog ntawm lub kauj yog 600 hli, lub kaum sab xis yog 30 degrees, sab nraud txoj kab uas hla ntawm titanium raj yog 25 hli, phab ntsa thickness yog 2 hli, thiab Qhov sib txawv ntawm lub titanium raj thiab lub kauj kauj yog 4 hli.
