I-Hydroxyethylcellulose (HEC) i-nonionic, i-polymer e-soluble yamanzi ephuma kwi-cellulose ngokusebenzisa uchungechunge lwee-chemical reactions. Isetyenziswa kakhulu kumashishini ahlukeneyo, kubandakanywa i-oyile kunye ne-gas industry, idlala indima ebalulekileyo ekwembeni kunye nokugqiba ulwelo. Kulo mongo, i-HEC isebenza njenge-rheology modifier, i-ejenti yokulawula ukuhamba, kunye ne-tackifier, inceda ukuphucula ukusebenza kakuhle kunye nempumelelo ye-oilfield operations.
1.Intshayelelo ngeHydroxyethyl Cellulose (HEC)
I-Hydroxyethylcellulose iphuma kwi-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zezityalo. Ukuqaliswa kwamaqela e-hydroxyethyl ngokuguqulwa kweekhemikhali kwandisa ukunyibilika kwayo kwamanzi, okwenza kube yinto edibeneyo efanelekileyo kwizicelo ezahlukeneyo. Kwishishini leoli kunye negesi, i-HEC ixabiswa ngenxa yeempawu zayo ze-rheological, ukuzinza, kunye nokuhambelana nezinye izongezo ezisetyenziselwa ukucoca ulwelo.
2. Ukusebenza kwe-HEC ehambelana nezicelo ze-oilfield
2.1. Ukunyibilika kwamanzi
Ukunyibilika kwamanzi kwe-HEC luphawu oluphambili kwizicelo zalo ze-oyile. Ukunyibilika kwamanzi kwepolymer kwenza kube lula ukuxubana nezinye izithako zolwelo lokomba kwaye kuqinisekisa ukusasazwa ngokulinganayo ngaphakathi kwenkqubo yolwelo.
2.2. Ulawulo lwe-Rheology
Omnye wemisebenzi ephambili ye-HEC kwi-oilfield fluids kukulawula i-rheology. Itshintsha i-viscosity ye-fluid kwaye inika uzinzo phantsi kweemeko ezahlukeneyo zokuhla. Le propati ibalulekile ekugcineni iimpawu zokuhamba ezifunekayo zolwelo lokomba kuyo yonke inkqubo yokomba.
2.3. Ukulawulwa kwelahleko yamanzi
I-HEC yi-arhente esebenzayo yokulawula ukulahleka kwamanzi. Inceda ukuthintela ukulahleka kwamanzi okubhobhoza ekubunjweni ngokwenza umqobo okhuselayo kwiindonga zomthombo. Le propati ibalulekile kuzinzo lwe-wellbore kunye nokunciphisa umonakalo wokwakheka.
2.4. Ukuzinza kwe-Thermal
Imisebenzi ye-Oilfield ihlala idibana nemigangatho emikhulu yokushisa. I-HEC izinzile ngokwe-thermal kwaye igcina ukusebenza kwayo ekulawuleni i-rheology kunye nokulahlekelwa kwamanzi naphantsi kweemeko eziphezulu zokushisa ezifunyenwe kwi-drilling enzulu.
2.5. Ukuhambelana nezinye izongezo
I-HEC iyahambelana neentlobo ngeentlobo zezongezo eziqhelekileyo ezisetyenziselwa ukugrumba ulwelo, njengetyuwa, i-surfactants kunye nezinye iipolymers. Oku kuhambelana kwandisa ukuguquguquka kwayo kwaye ivumela iinkqubo zolwelo oluqhelekileyo lokomba ukuba zenziwe ngokusekelwe kwiimeko ezithile zomthombo.
3. Ukusetyenziswa kulwelo lwe-oyile
3.1. Ulwelo lokwemba
Ngexesha lemisebenzi yokugaya, i-HEC yongezwa kwi-drilling fluid ukufezekisa iipropati ezifanelekileyo ze-rheological. Inceda ukulawula i-viscosity yolwelo, iqinisekisa ukuthuthwa ngokufanelekileyo kwe-drill cuttings ukuya phezulu kunye nokuthintela imiba yokungazinzi kwe-wellbore.
3.2. Ulwelo lokugqibezela
I-HEC ingasetyenziswa njenge-arhente yokulawula ukuhluza ekuzaliseni ulwelo olusetyenziswa ngexesha lokugqitywa kakuhle kunye nokusebenza komsebenzi. Yenza umqobo eludongeni lomthombo, inceda ukugcina uzinzo eludongeni kakuhle kunye nokuthintela umonakalo kwizakhiwo ezijikelezileyo.
3.3. Ulwelo oluqhekezayo
Kwi-hydraulic fracturing, i-HEC ingasetyenziselwa ukuguqula iimpawu ze-rheological ze-fracturing fluid. Inceda ekumisweni okungxamisekileyo kunye nothutho, igalelo kwimpumelelo yenkqubo yokuqhekeka kunye nokudalwa kothungelwano olusebenzayo lokuqhekeka.
4. Ukuqwalaselwa koqulunqo
4.1. Gxininisa
Ukuxinwa kwe-HEC kwi-drilling fluid yiparameter ebalulekileyo. Kufuneka iphuculwe ngokweemeko ezithile zequla, iimfuno zolwelo kunye nobukho bezinye izongezo. Ukusetyenziswa ngokugqithiseleyo okanye ukugxila okungonelanga kunokuchaphazela ukusebenza kwamanzi.
4.2. Inkqubo yokuxuba
Iinkqubo zokuxuba ezichanekileyo zibalulekile ukuqinisekisa ukusabalalisa okufanayo kwe-HEC kumanzi okugaya. Ukuxuba okungaphelelanga kunokubangela iimpawu ezingalinganiyo zamanzi, ezichaphazela ukusebenza ngokubanzi kwe-drilling fluid.
4.3. Ulawulo lwemeko
Amanyathelo okulawula umgangatho abaluleke kakhulu kwimveliso kunye nokusetyenziswa kwe-HEC kwizicelo ze-oilfield. Uvavanyo olungqongqo kufuneka lwenziwe ukuqinisekisa ukusebenza kwepolymer kunye nokuqinisekisa ukusebenza okufanayo.
5. Iingqwalasela zokusingqongileyo kunye nokhuseleko
5.1. I-Biodegradability
I-HEC ngokuqhelekileyo ithathwa njengento enokubola, eyona nto ibalulekileyo ekuhloleni impembelelo yayo yokusingqongileyo. I-Biodegradability inciphisa impembelelo yexesha elide enokubakho ye-HEC kokusingqongileyo.
5.2. Impilo nokhuseleko
Nangona i-HEC ithathwa njengekhuselekile ukusetyenziswa kwizicelo ze-oilfield, iinkqubo ezifanelekileyo zokuphatha kufuneka zilandelwe ukuthintela ukuvezwa. Iphepha leDatha loKhuseleko lweMpahla (MSDS) libonelela ngolwazi olubalulekileyo malunga nokuphathwa ngokukhuselekileyo nokusetyenziswa kwe-HEC.
6. Iintsingiselo zexesha elizayo kunye nezinto ezintsha
Ishishini leoli kunye negesi liyaqhubeka nokufuna izinto ezintsha zokuphucula ukusebenza kakuhle kokomba kunye nokunciphisa impembelelo yokusingqongileyo. Uphando oluqhubekayo lugxile ekuphuhliseni iipolymer ezintsha ezineepropathi eziphuculweyo kunye nokuhlola ezinye iindlela ezizinzileyo kwizongezo zesiqhelo zokomba ulwelo.
7. Isiphelo
IHydroxyethylcellulose idlala indima ebalulekileyo kwishishini leoli negesi, ngakumbi ekwembeni nasekugqibezeleni imixube yolwelo. Inhlanganisela yayo ekhethekileyo yokulawula i-rheology, ukuthintela ukulahlekelwa kwamanzi kunye nokuhambelana nezinye izongezo kwenza kube yinto ebalulekileyo ekuqinisekiseni ukusebenza ngempumelelo kunye nokusebenza kakuhle kwe-oilfield. Njengoko iteknoloji ihambela phambili, uphando oluqhubekayo kunye nophuhliso lunokukhokelela kuphuculo olongezelelweyo kwi-HEC kunye nokugrumba i-fluid formulations, ngaloo ndlela inceda ukuphononongwa okuzinzileyo kunye noxanduva lwemithombo yeoli negesi.
Ixesha lokuposa: Dec-02-2023