Ua ntej ntawm tag nrho cov, ob qho tib si dej-raws li thiab roj-base drilling kua muaj qhov zoo thiab qhov tsis zoo, thiab lawv hloov mus rau qhov sib txawv stratigraphic.Yog li ntawd, tsis muaj superior lossis inferior stratum, thiab nws yog tsis yooj yim sua kom arbitrarily hais tias ib tug yog tus yav tom ntej txoj kev loj hlob qauv.API thiab IADC faib cov kua dej drilling rau hauv cuaj pawg, thawj xya hom yog cov dej hauv cov dej drilling, hom yim yog cov roj drilling kua, thiab hom kawg yog roj raws li qhov nruab nrab nruab nrab.Non-dispersive system, 2, dispersive system, 3, calcium kev kho system, 4, polymer system, 5, low-solid system, 6, saturated brine system, 7, zoo tiav kua system, 8, roj-base drilling kua system, 9, huab cua, huab cua, ua npuas ncauj thiab roj system.
Dej-raws li drilling kua muaj qhov zoo ntawm tus nqi qis, yooj yim configuration, kev kho thiab kev kho, dav qhov chaw ntawm kev kho tus neeg saib xyuas, ntau hom muaj rau xaiv, yooj yim tswj kev ua tau zoo, thiab lwm yam, nrog rau kev tiv thaiv zoo ntawm cov roj thiab roj txheej. .Roj-base drilling kua yog hais txog cov roj raws li cov theem txuas ntxiv drilling kua.Raws li thaum ntxov xyoo 1920s, cov roj crude tau siv los ua cov dej drilling kom tsis txhob muaj thiab txo qhov tshwm sim ntawm ntau qhov teeb meem nyuaj hauv drilling.Txawm li cas los xij, nws pom nyob rau hauv kev xyaum uas cov roj crude muaj qhov tsis zoo hauv qab no: me me shear quab yuam, nyuaj rau ncua barite, loj pom poob, thiab volatile Cheebtsam nyob rau hauv cov roj crude yuav yooj yim ua rau hluav taws.Yog li ntawd, nws maj mam tsim mus rau hauv ob lub roj-puag drilling kua nrog diesel raws li theem txuas ntxiv - tag nrho cov roj drilling kua thiab dej-hauv-roj emulsion drilling kua.Nyob rau hauv tag nrho cov roj drilling kua, dej yog siv tsis tau, nws cov ntsiab lus dej yuav tsum tsis pub tshaj 7%.Nyob rau hauv cov roj-ladle dej drilling kua, dej yog faib sib npaug hauv cov roj diesel raws li qhov tsim nyog, thiab nws cov ntsiab lus dej feem ntau yog 10% ~ 60%.
Piv nrog rau cov dej-raws li drilling kua, muaj peev xwm roj-base drilling kua nrog kub tsis kam, tsis kam mus rau ntsev, calcium contamination, borehole phab ntsa stability, zoo lubrication thiab hydrocarbon reservoir puas tsawg dua, thiab lwm yam zoo, tau tam sim no los ua ib tug xyaum. nyuaj siab kub sib sib zog nqus zoo, siab lub kaum sab xis deviated thiab kab rov tav Wells thiab cov ntsiab lus tseem ceeb ntawm ntau yam complex tsim, thiab tuaj yeem siv dav rau cov kua dej pom, perforating tiav cov kua dej, cov dej ua haujlwm thiab lub plawv dhia dej.Txawm li cas los xij, kev npaj cov nqi ntawm cov roj-puag drilling kua yog ntau dua li cov dej-base drilling kua, thiab thaum siv, nws feem ntau yuav ua rau muaj kev cuam tshuam loj rau thaj chaw ecological ze ntawm qhov chaw zoo, thiab cov tshuab drilling ceev feem ntau qis dua. tshaj qhov dej-base drilling kua.Cov kev tsis zoo no txwv tsis pub sib kis thiab siv cov roj hauv paus drilling kua.Txhawm rau txhim kho tus nqi drilling, qis gel roj pob dej emulsion drilling kua tau dav siv los ntawm nruab nrab-1970s.Txhawm rau tiv thaiv ib puag ncig ecological thiab hloov mus rau cov kev xav tau ntawm ntug dej hiav txwv drilling, txij li xyoo 1980s, cov roj tsis muaj tshuaj lom-dej-dej emulsion drilling kua nrog ntxhia roj raws li cov roj hauv paus tau maj mam nrov.Tam sim no, tag nrho cov roj drilling kua tau siv tsawg dua, yog li feem ntau hais lus, cov roj hauv paus drilling kua yog hais txog cov dej-hauv-roj emulsion drilling kua nrog roj av lossis cov roj ntxhia uas tsis muaj tshuaj lom (cov roj dawb) raws li qhov txuas ntxiv. theem.
Post lub sij hawm: Aug-09-2018