Ukugrumba ulwelo lokongeza i-HEC (i-hydroxyethyl cellulose)

IHydroxyethyl Cellulose (HEC) sisongezo esiqhelekileyo esisetyenziswa kulwelo lokomba, olukwabizwa ngokuba ludaka lokomba, ukuguqula iimpawu zabo zerheological kunye nokuphucula ukusebenza kwabo ngexesha lomsebenzi wokomba. Nantsi indlela iHEC esetyenziswa ngayo njengesongezo solwelo lokomba:

1. Ukulawulwa kweViscosity: I-HEC yipolymer enyibilikayo emanzini enokunyusa kakhulu i-viscosity ye-drilling fluids. Ngokulungelelanisa ukugxininiswa kwe-HEC kulwelo, oomatshini bokusebenza banokulawula i-viscosity yayo, ebaluleke kakhulu ekuthwaleni ama-cuttings agrunjiweyo phezulu kunye nokugcina uzinzo lwe-wellbore.
2. Ukulawulwa koLahleko lwe-Fluid: I-HEC inceda ukunciphisa ukulahlekelwa kwamanzi ukusuka kumanzi okugaya ekubunjweni ngexesha lokugaya. Oku kubalulekile ekugcineni uxinzelelo lwe-hydrostatic olwaneleyo kwi-wellbore, ukuthintela umonakalo wokwakheka, kunye nokunciphisa umngcipheko wokujikeleza okulahlekileyo.
3. Ukucocwa komngxuma: I-viscosity eyandisiweyo enikwa yi-HEC inceda ukunqumamisa ukusika okugrunjiweyo kunye nezinye izinto eziqinileyo kulwelo lokomba, kube lula ukususwa kwazo kumthombo. Oku kuphucula ukusebenza kakuhle kokucoca umngxuma kunye nokunciphisa amathuba okuba neengxaki ze-downhole ezifana nombhobho oxinyiweyo okanye ukuncamathela ngokwahlukileyo.
4. Ukuzinza kobushushu: I-HEC ibonisa ukuzinza okuhle kwe-thermal, okwenza kube yinto efanelekileyo yokusetyenziswa kwi-drilling fluids esebenza phantsi kweemeko ezininzi zokushisa. Igcina iimpawu zayo ze-rheological kunye nokusebenza nangona kumaqondo obushushu aphezulu adibana nawo kwiindawo ezinzulu zokomba.
5. Ityuwa kunye noNyamezelo oluNcincisayo: I-HEC iyanyamezela ukugxininiswa okuphezulu kweetyuwa kunye nokungcola okuqhelekileyo kufumaneka kwi-drilling fluids, efana ne-brine okanye ukugrumba izongezo zodaka. Oku kuqinisekisa ukusebenza okungaguqukiyo kunye nokuzinza kolwelo lokomba nakwimeko ezinzima zokomba.
6. Ukuhambelana nezinye izongezo: I-HEC iyahambelana neentlobo zezinye izongezo zamanzi zokomba, kubandakanywa i-biocides, i-lubricants, i-shale inhibitors, kunye ne-agent yokulawula ukulahleka kwamanzi. Inokuthi ifakwe ngokulula kwi-drilling fluid formulation ukufezekisa iipropati ezifunwayo kunye neempawu zokusebenza.
7. Iingqwalasela zokusiNgqongileyo: I-HEC ngokuqhelekileyo ithathwa njengenobuhlobo nokusingqongileyo kwaye ayinayo ityhefu. Ayibeki mingcipheko ibalulekileyo kokusingqongileyo okanye kubasebenzi xa isetyenziswa ngokufanelekileyo kwimisebenzi yokomba.
8. Idosi kunye nesicelo: I-dosage ye-HEC kwi-drilling fluids iyahluka ngokuxhomekeke kwizinto ezifana ne-viscosity efunwayo, iimfuno zokulawula ukulahleka kwamanzi, iimeko zokomba, kunye neempawu ezithile ze-wellbore. Ngokuqhelekileyo, i-HEC yongezwa kwi-drilling fluid system kwaye ixutywe ngokucokisekileyo ukuqinisekisa ukusabalalisa okufanayo ngaphambi kokusetyenziswa.

I-HEC yongezelelo oluguquguqukayo oludlala indima ebalulekileyo ekuphuculeni ukusebenza kunye nokuzinza kwe-drilling fluids, igalelo ekusebenzeni ngokufanelekileyo kunye nempumelelo yokomba kwishishini leoli kunye negesi.