Chekutanga pane zvese, ese ari maviri-akavakirwa-mvura uye oiri-base-yakadzika yekuchera zvinwiwa zvine zvakanakira nekuipira, uye ivo vanochinjika kune akasiyana stratigraphic mamiriro.Naizvozvo, hapana chepamusoro kana yakaderera stratum, uye hazvigoneke kutaura tichipokana kuti ndeipi ndiyo nzira yebudiriro yeramangwana.API neIADC dzinoisa hurongwa hwekuchera mvura muzvikamu zvipfumbamwe, mhando nomwe dzekutanga imvura-yakavakirwa mvura yekuchera, yerusere rudzi rweoiri-based drilling fluid, uye yekupedzisira mhando igasi seyakanyanya svikiro.Non-dispersive system, 2, dispersive system, 3, calcium treatment system, 4, polymer system, 5, low-solid system, 6, saturated brine system, 7, tsime rinopedza mvura, 8, mafuta-base drilling fluid system, 9, mhepo, mhute, furo uye gasi system.
Mvura-based drilling fluid ine zvakanakira mutengo wakaderera, kurongeka, kurapwa uye kugadzirisa, kwakawanda sosi yekurapa, mhando dzakawanda dziripo pakusarudza, kudzora kuri nyore kwekuita, nezvimwewo, pamwe nekudzivirira kwakanaka kwemafuta uye gasi layer. .Oil-base drilling fluid inoreva oiri senzira inoenderera mberi yekuchera mvura.Kare kuma1920s, mafuta asina kuchena aishandiswa semvura yekuchera kudzivirira uye kuderedza kuitika kwemamiriro akasiyana-siyana akaoma mukuchera.Zvisinei, zvinowanikwa mukuita kuti mafuta asina kuchena ane zvinotevera: simba diki rekugera, rakaoma kumisa barite, kurasikirwa kukuru kwefiltration, uye zvinhu zvinoputika mumafuta asina kuchena zvinogona kukonzera moto nyore nyore.Nekuda kweizvozvo, yakawedzera zvishoma nezvishoma kuita maoiri-base yekuchera zvinwiwa nedhiziri sechikamu chinoenderera --ese-oiri yekuchera mvura uye mvura-mu-oiri emulsion yekuchera fluid.Mumafuta ose ekuchera mvura, mvura haina maturo chikamu, mvura yaro haifaniri kudarika 7%.Mumafuta-ladle mvura yekuchera mvura, mvura inogovaniswa zvakaenzana mumafuta edhiziri sechinhu chinodiwa, uye mvura yaro inowanzova 10% ~ 60%.
Zvichienzaniswa nemvura-based drilling fluid, inogona mafuta-base drilling fluid ine yakakwirira tembiricha kuramba, kuramba munyu, calcium kusvibiswa, borehole rusvingo kugadzikana, zvakanaka lubricity uye nokuda hydrocarbon reservoir kukuvadzwa kuduku zvikuru, uye zvimwe zvakanakira, zvino yava chibooreso. yakaoma tembiricha yakadzika yakadzika mutsime, yakakwira Angle yakatsauka uye yakachinjika Matsime uye nzira dzakakosha dzekuumbwa kwakasiyana kwakaoma, uye inogona kushandiswa zvakanyanya kuona mvura, perforating yekupedzisa fluid, workover fluid uye fluid drive moyo.Nekudaro, mutengo wekugadzirira weoiri-base yekuchera mvura yakakwira zvakanyanya kupfuura yemvura-yakadzika yekuchera mvura, uye kana ikashandiswa, inowanzokonzera kukanganisa kwakakomba panharaunda yetiziro padyo nenzvimbo yetsime, uye kumhanya kwemuchina wekuchera kunowanzo kuderera. kupfuura iyo yemvura-base yekuchera mvura.Izvi zvinokanganisa zvakanyanya kudzikisira kupararira uye kushandiswa kwemafuta-base yekuchera zvinwiwa.Kuti uvandudze chiyero chekuchera, yakaderera gel oiri pasuru yemvura emulsion yekuchera mvura yakashandiswa zvakanyanya kubva pakati pemakore ekuma1970.Kuitira kuchengetedza nharaunda uye kuenderana nezvinodiwa zvekuchera kumahombekombe, kubva kutanga kwema1980, iyo yakaderera-chepfu yemafuta-mvura emulsion yekuchera fluid ine mineral oiri sezvo mafuta epasi aizivikanwa zvishoma nezvishoma.Parizvino, mafuta-se-kuchera mvura yakashandiswa zvishoma, saka kazhinji kutaura, iyo mafuta-base yekuchera mvura inoreva mvura-mu-oiri emulsion yekuchera fluid nemafuta edhiziri kana yakaderera-chepfu mineral oil (white oil) seinoenderera. phase.
Nguva yekutumira: Aug-09-2018