Simende inotsigira uye inodzivirira zvakanaka casings uye inobatsira kuwana zonal yekuzviparadzanisa nevamwe.Yakakosha kune yakachengeteka, nharaunda inonzwika, uye matsime ane pundutso, zonal isolation inogadzirwa uye inochengetwa mutsime nekuita simende.Zonal isolation inodzivirira zvinwiwa zvakaita semvura kana gasi mune imwe nzvimbo kubva kusanganiswa neoiri mune imwe nzvimbo.Izvi zvinowanikwa kuburikidza nekugadzirwa kwe hydraulic barriers pakati pe casing, simenti uye kuumbwa.Cement additives zvinhu zvinowedzerwa kusimende kuitira optimization yesimende zvivakwa uye nzira yekukuya simende.Cement additives inoiswa mumapoka akasiyana ezvigadzirwa zvakadai sezviyamuro zvekukuya, zvinosimbisa simba uye zvinosimudzira kuita.Kune maviri akakosha marudzi ezviitwa mukusimbisa, anoti, yekutanga uye yechipiri simende.Primary cementing inogadzirisa simbi yesimbi kune yakakomberedza maumbirwo.Sekondari simende inoshandiswa kuzadza mafomu, kuvhara, kana kuvhara mvura.Kuita kunogona kusiyanisa nekuwedzera kwekuwedzera maererano neakasiyana maficha.Zvichienderana nekushandiswa kwesamende, zvakasiyana-siyana zvekuwedzera zvinogona kuiswa.Izvi zvinosanganisira accelerators, retarders, dispersants, extenders, weighting agents, gels, foamers, uye fluid kurasikirwa additives.Foring Chemcials inopa huwandu hwakasiyana hwemhando yepamusoro makemikari ekuwedzera kune oirifield application uye inopawo-yakagadzirwa dhizaini kutsigira nekusimudzira maitiro esimende.Cement dispersants inovandudza slurry rheology kuitira kuti kureba kwepombi kunovandudzwa zvikuru uye panguva imwe chete mvura-inoderedza simenti slurries inogoneka.Fluid kurasikirwa zvinowedzera, izvo zvakatsiga pakupisa kwakanyanya uye yakadzika munyu mhinduro, inovimbisa yakavimbika simende basa pasi pemamiriro akaoma.Maretarders anogona kusanganiswa zvine mutsindo nemadiresi edu anoshanda zvakanyanya achibvumira nguva yakaoma simende mabasa pasi pemamiriro ekupisa.Iwo anorwisa-gasi ekufambisa ekuwedzera anodzivirira gasi kubva kunzira kuburikidza neinoomesa simende uye kuve nechokwadi chebasa rakavimbika rekuisa simende, nepo defoamers edu aine akatanhamara ekudzora furo zvivakwa.
Nguva yekutumira: Mar-03-2023