PetroChina's Chuanqing Drilling tsoo National Record rau thee, pob zeb thiab roj kab rov tav Wells

Tsis ntev los no, Ningtan 1H zoo drilled los ntawm PetroChina Chuanqing Drilling Team 70516 tau ua tiav drilled mus rau qhov tob ntawm 5,470 meters. Qhov tob tshaj plaws ntsug ntawm qhov dej no nce mus txog 4071.49 meters, teeb tsa lub teb chaws cov ntaub ntawv tshiab rau qhov tob tshaj plaws ntsug qhov tob ntawm cov roj av kab rov tav, nteg lub hauv paus ruaj khov rau kev txhim kho cov roj nkev zoo hauv Sichuan thiab Chongqing.

Drilling crew cov neeg ua haujlwm tshawb xyuas cov cuab yeej drilling. Diam duab courtesy ntawm Chuanqing Drilling

Coalbed methane yog ib yam ntawm unconventional natural gas. Kev lag luam feem ntau txheeb xyuas cov coalbed methane nrog qhov tob ntsug ntawm ntau dua 1,500 meters raws li qhov sib sib zog nqus coalbed methane. kuv lub teb chaws yog nplua nuj nyob rau hauv coalbed methane kev pab, tshwj xeeb tshaj yog sib sib zog nqus coalbed methane uas muaj broad prospects. Txawm li cas los xij, vim qhov nyuaj geological tej yam kev mob ntawm sib sib zog nqus coalbed methane, nrog rau cov yam ntxwv xws li sib sib zog nqus faus, siab nyob rau hauv-situ kev nyuaj siab, thiab muaj zog plasticity, txoj kev loj hlob yog nyuaj. Tam sim no, thaj chaw Sichuan thiab Chongqing tseem nyob rau theem pib ntawm kev tshawb nrhiav.

Xyoo no, Chuanqing Drilling tau txheeb xyuas qhov "Unconventional Gas Revolution Project" ua ib qho ntawm "Top Ten Projects" thiab yuav siv qhov no los ua cov lus qhia txhawm rau txhawm rau txhim kho kev ua haujlwm zoo engineering thiab kev pabcuam zoo.

Zoo Ningtan 1H yog thawj qhov kev pheej hmoo ntawm kev tshawb nrhiav roj av hauv Southwest Oil thiab Gas Field. Lub qhov dej tau raug laum thaum Lub Xya Hli 31, 2023, nrog rau kab rov tav ntawm 1,000 meters. Lub qhov dej tau ntsib cov thee thiab cov pob zeb zoo tsim ntawm Longtan Formation, nrog cov roj thiab cov pa ua haujlwm zoo thiab muaj kev tswj xyuas zoo; cov thee seam lub thawv yog nqaim, thee gangue txheej nyob rau hauv lub interlayer muaj complex lithology thiab tsis zoo drillability; txoj kev tsim inclination lub kaum sab xis hloov pauv zoo heev, lub qhov dej trajectory yog tortuous, thiab cov thee thiab pob zeb teeb meem xws li kev sib tsoo yooj yim.

Cov neeg ua haujlwm ntawm pab pawg drilling ua tiav cov haujlwm tsim kho kom zoo thiab ua haujlwm tau zoo. Diam duab courtesy ntawm Chuanqing Drilling

Thaum lub sijhawm tsim kho, Chuanqing Drilling tau xa cov kws tshaj lij los taug qab thiab qhia thoob plaws hauv cov txheej txheem, txuas ntxiv kho cov phiaj xwm thiab kev ntsuas, thiab ua kom zoo dua qhov ntsuas qhov ntsuas; pab neeg no nruj me ntsis siv cov kev ntsuas, hais kom ua hauj lwm ua ke nrog rau tag nrho cov muaj feem xyuam rau txhua txhua hnub, thiab tso siab rau qhov zoo ntawm kev koom ua ke engineering thiab geology kev koom tes los txais yuav loj-scale drilling txoj kev. Kev xaav, kev kub ceev thiab lwm yam txhais tau tias tuaj yeem daws teeb meem geological nyuaj hauv lub sijhawm. Nyob rau tib lub sijhawm, pab pawg yeej ib txwm tswj hwm kev nyab xeeb ua ntej, thiab cov tub ceev xwm ua haujlwm ua raws tag nrho cov txheej txheem, tiv thaiv cov teeb meem hauv av thiab xyuas kom lub qhov dej drilled zoo thiab nyab xeeb.

Kev lag luam ntseeg tias kev ua tiav zoo ntawm Well Ningtan 1H tsis yog tsuas yog qhib qhov xwm txheej tshiab hauv kev tshawb nrhiav thee, pob zeb, roj thiab roj thiab roj hauv thaj chaw Sichuan thiab Chongqing, tab sis kuj tau muab cov ntaub ntawv tseem ceeb thiab muaj txiaj ntsig zoo rau cov thee thiab pob zeb tom ntej. zoo kev tsim kho.