MPD (tswj siab drilling) IADC txhais tau hais tias yog ib qho kev hloov kho drilling txheej txheem siv los tswj cov txheej txheem siab tshaj plaws thoob plaws hauv lub qhov dej.Lub hom phiaj yog 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 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 txhuam, nws yuav tsum tau txiav cov txiav.MPD yog tsim los kom tsis txhob muaj cov kua dej txuas ntxiv mus rau qhov chaw.Txhua qhov influx tshwm sim rau kev ua haujlwm yuav muaj kev nyab xeeb siv cov txheej txheem tsim nyog.
Peb lub tuam txhab ua tus tsim nyog muab kev pabcuam rau MPD (Managed Pressure Drilling) thev naus laus zis rau CNPC thiab CNOOC, txij li thaum Halliburton's MPD thev naus laus zis kev pabcuam rau Tuam Tshoj xyoo 2010, peb tau sau tag nrho 25 tus qauv MPD cov kev pabcuam thev naus laus zis rau CNPC yav dhau los 13. xyoo, suav nrog 8 qhov dej nrog qhov tob tshaj 8000 meters.
Tam sim no, peb lub tuam txhab muaj kev pabcuam kev pabcuam ntawm ntau dua 60 tus neeg ua haujlwm, suav nrog 17 tus kws tshaj lij nrog ntau tshaj 10 xyoo ntawm kev paub hauv MPD cov kev pabcuam thiab 26 tus kws tshaj lij nrog tshaj 5 xyoos ntawm MPD kev paub.Nws sawv ua ib qho ntawm MPD cov kev pabcuam thev naus laus zis muaj zog tshaj plaws hauv Suav teb.
Qhov zoo ntawm MPD
| Khoom | Tau txais txiaj ntsig | Kev tshwm sim | Saib |
| Kaw voj Circuit Court | Kev hloov pauv hauv qhov dej tawm ntawm qhov dej yuav raug kuaj pom tam sim ntawd | Txo qhov tsis paub tseeb | Kicks thiab poob pom nyob rau hauv ib qho teeb meem ntawm feeb |
| Muaj cov roj tsim tawm thiab cov kua dej downhole | Txhim kho HSE | Tsis tshua muaj feem cuam tshuam cov kua dej txaus ntshai mus rau hauv pem teb rig | |
| Ua FIT & LOT xeem thaum drilling | Kev paub ntau ntxiv txog kev tswj hwm lub siab | Tsawg dua yuav ntsib cov xwm txheej txaus ntshai | |
| Siv backpressure | Kho lub siab zoo nyob rau hauv ib qho teeb meem ntawm feeb | Txo lub sij hawm siv rau cov xwm txheej tswj kom zoo, txhim kho HSE | Tsis tas yuav mus ncig hauv av nkos tshiab |
| Cov npoo me me | Laum nqaim av nkos qhov rais | ||
| Nruam CirculationSystem | Tsis txhob muaj lub siab surges thaum pib ncig, tswj kev ruaj ntseg borehole thaum ua kev sib txuas | Txhim kho HSE, txo qhov yuav poob zoo | Txhim kho borehole zoo, tsis txhob tsim nyem, tsis txhob poob ncig |
| Drilling ze dua tobalanced tej yam kev mob (tso siab sib txawv ntawm borehole thiab tsim) | Nce ROP | Txo cov kev siv nyiaj txiag | Vim txo "Chip Hold Down" rog |
| Nce me ntsis lub neej | Txo me ntsis kev siv nyiaj thiab lub sij hawm siv tripping hlua tawm ntawm qhov | Tsawg WOB, tsawg dua ntawm "ntsis balling" tshwm sim, tsawg hnav ntawm me ntsis | |
| Txo cov kua dej tsawg | Txo cov av nkos kev siv nyiaj | Tsis tshua muaj siab tshaj qhov tawg thaum lub sij hawm drilling | |
| Txo qhov tshwm sim ntawm kev poob / ncaws pob | Txhim kho kev nyab xeeb thiab siv sijhawm los tswj cov xwm txheej zoo | Vim muaj kev tswj ntau dua ntawm kev tswj hwm siab thiab qis qis | |
| Nthuav cov ntsiab lus casing, teeb cov casings ntxaum | Txo tus naj npawb ntawm cov hlua casing hauv zoo | ||
| Txo kev tsim kev puas tsuaj | Txhim kho cov khoom tsim tau, txo lub sijhawm siv thiab / lossis txhim kho kev ua haujlwm ntawm kev ntxuav | Qhov tshwm sim ntawm kev txo qis tsim dej thiab particle ntxeem tau | |
| Txo qhov tshwm sim ntawm qhov teeb meem sib txawv | Txo lub sij hawm siv txoj hlua ua haujlwm, nuv ntses, taug qab, thiab tus nqi ntawm cov cuab yeej sab laug downhole | Qhov sib txawv zog ua rau ntawm txoj hlua raug txo |
Taw qhia txog cov khoom siv MPD:
Pressure Control Center
Kev tawg-pov thawj nyob rau hauv qhov zoo siab nrog CCS thiab DNV nkoj cais pawg neeg pov thawj.
☆ 316L stainless hlau sab hauv vaj huam sib luag, compact qauv, thiab kev ua haujlwm zoo.
☆ Yam tsawg kawg nkaus qhov ntev, dav, thiab qhov siab: 3 meters x 2.6 meters x 2.75 meters.
Tsis siv neegchokeqhov system
Muaj daim ntawv pov thawj ntawm Tuam Tshoj Classification Society (CCS).
☆ Rated siab: 35 MPa, Txoj kab uas hla: 103 mm
☆ Ib qho tseem ceeb thiab ib qho thaub qab
☆ High-precision mass flow meter: Real-time saib xyuas ntawm qhov hluav taws xob ntws.
PLC cov ntaub ntawv tau txais thiab tswj qhov system
Muaj daim ntawv pov thawj ntawm Tuam Tshoj Classification Society (CCS).
Distribution box explosion-proof rating ExdⅡBT4, plhaub tiv thaiv IP56.
Hydraulic tswj chaw nres tsheb
☆ Nruab nrog rau ntawm qhov chaw thiab chaw taws teeb tswj tsis siv neeg ua haujlwm.
☆ Fais fab mov: Peb hom - hluav taws xob, pneumatic, thiab phau ntawv.
☆ Lub raj mis accumulator nrog ASME ntawv pov thawj.
Rotary tswj lub taub hau
☆ Export flange 17.5, qis flange qauv 35-35.
☆ Diameter 192/206mm, siab ntsuas 17.5MPa.
☆ Kaw siab ntawm lub clamp yog 21MPa, qhib siab yog ≤7.5MPa, roj txhaj twj tso kua mis siab yog 20MPa, tag nrho lub zog yog 8KW.
Backpressure them nyiaj system
☆ Tsav hom: Internal combustion engine-tsav.
☆ Ua haujlwm siab tshaj plaws: 35 MPa.
☆ Tawm: 1.5-15 l / s
PWD (Pressure while Drilling)
☆ Ua haujlwm siab tshaj plaws
☆ Ua haujlwm kub siab tshaj plaws: 175 ℃.
Post lub sij hawm: Dec-01-2023