I-Hydroxyethyl Cellulose kwiFluid Fracturing kwi-Oil Drilling

I-Hydroxyethyl cellulose (HEC) ngamanye amaxesha isetyenziswa kulwelo oluqhekezayo olusetyenziswa kwimisebenzi yokomba ioyile, ngakumbi kwi-hydraulic fracturing, eyaziwa njenge-fracking. I-fracturing fluids ifakwe equleni kuxinzelelo oluphezulu ukwenza iifractures kulwakhiwo lwamatye, okuvumela ukutsalwa kweoyile kunye negesi. Nantsi indlela i-HEC enokuthi isetyenziswe ngayo kulwelo lwefracturing:

1. Ukuguqulwa kweViscosity: I-HEC isebenza njenge-rheology modifier, inceda ukulawula i-viscosity ye-fracturing fluid. Ngokuhlengahlengisa uxinaniso lwe-HEC, abaqhubi banokulungelelanisa i-viscosity ukufezekisa iipropathi ezifunwayo ze-fracturing fluid, ukuqinisekisa ukuthuthwa kwamanzi okusebenzayo kunye nokudalwa kwe-fracture.
2. Ukulawulwa koLahleko lwe-Fluid: I-HEC inokunceda ekulawuleni ukulahleka kwamanzi ekubunjweni ngexesha lokuqhekeka kwe-hydraulic. Yenza ikhekhe elicwengekileyo, elingenakunqongophala kwiindonga zokuphuka, ukunciphisa ukulahlekelwa kwamanzi kunye nokuthintela umonakalo ekubunjweni. Oku kunceda ukugcina ingqibelelo yokwaphuka kunye nokuqinisekisa ukusebenza kakuhle kwendawo yokugcina amanzi.
3. I-Proppant Suspension: I-Fracturing fluids ihlala iqulethe i-propants, njengesanti okanye iincinci ze-ceramic, ezithwalwa kwiifractures ukuze zihlale zivulekile. I-HEC inceda ukumisa aba baxhasi ngaphakathi kwe-fluid, ukukhusela ukuhlalisa kwabo kunye nokuqinisekisa ukusabalalisa okufanayo ngaphakathi kweefractures.
4. I-Fracture Cleanup: Emva kwenkqubo yokuqhawula, i-HEC inokuncedisa ekucoceni i-fracturing fluid kwi-wellbore kunye ne-fracture network. I-viscosity yayo kunye neempawu zokulawula ukulahleka kwamanzi zinceda ukuqinisekisa ukuba i-fracturing fluid inokubuyiselwa ngokufanelekileyo emthonjeni, okuvumela ukuveliswa kweoli kunye negesi ukuba kuqalise.
5. Ukuhambelana kunye neZongezo: I-HEC iyahambelana nezongezo ezahlukeneyo ezisetyenziswa ngokuqhelekileyo kwi-fracturing fluids, kuquka i-biocides, i-corrosion inhibitors, kunye ne-friction reducers. Ukuhambelana kwayo kuvumela ukuqulunqwa kwee-fracturing fluids ezilungiselelwe iimeko ezithile zequla kunye neemfuno zemveliso.
6. Ukuzinza kobushushu: I-HEC ibonisa ukuzinza okuhle kwe-thermal, okwenza kube yinto efanelekileyo yokusetyenziswa kwi-fracturing fluids evezwe kumaqondo aphezulu e-downhole. Igcina iipropathi zayo ze-rheological kunye nokusebenza njenge-additive fluid phantsi kweemeko ezinzima, iqinisekisa ukusebenza okuhambelanayo ngexesha lemisebenzi ye-hydraulic fracturing.

I-Hydroxyethyl cellulose (HEC) inokudlala indima ebalulekileyo ekuqulunqweni kwe-fracturing fluids kwizicelo zokugaya ioli. Ukuguqulwa kwayo kwe-viscosity, ukulawulwa kokulahlekelwa kwamanzi, ukumiswa kwe-proppant, ukuhambelana nezongezo, ukuzinza kweqondo lokushisa, kunye nezinye iipropathi zinegalelo ekusebenzeni nasekuphumeleleni kwemisebenzi ye-hydraulic fracturing. Nangona kunjalo, kubalulekile ukuqwalasela iimpawu ezithile zedama kunye neemeko zequla xa kuyilwa imixube ye-fracturing fluid ene-HEC.