I-HYDROXYETHTHleTELL ye-Sellulose (Hec) yindawo eyongeziweyo ye-oyile yeoyile, apho isebenza khona imisebenzi eyahlukeneyo ekuqhliseni ifomula. Ezi fom, zikwabizwa ngokuba yimbuyekezo yodaka, zidlala indima ebalulekileyo ekuququzeleleni inkqubo yokupholisa ngokupholisa kunye nokuthambisa i-Drill Time, kwaye ibonelele kwi-quelbore. Nantsi isishwankathelo sezicelo, imisebenzi, kunye nokuqwalaselwa kwe-hec kwi-ocping yeoyile:

1. Intshayelelo kwi-HydroxyEtheethyl Selelose (Hec) kwi-oyile yeoyile

1.1 Ingcaciso kunye noMthombo

I-HydroxyEtheetheetheetheetheetheetheetheetheethl seluplose sisimo se-sellulose eguqulweyo efunyenwe ngokusabela kwi-sellyulose ethylene oxide. Ihlala isungulwa kwi-Pulp yeWoods okanye ikotoni kwaye iqhubekisiwe ukuze kudalwe i-ircower, i-viscoisa yokuthetha.

1.2 Vidiyolisa iarhente yokuqhuba i-flull

I-hec isetyenzisiwe ekuthandeni ulwelo ukuba luhlengahlengise kwaye lulawule i-viscofity yabo. Oku kubalulekile ukugcina uxinzelelo oluyimfuneko lwe-hydraulic kwi-quelbore kunye nokuqinisekisa ukusebenza okusebenzayo kumphezulu.

I-2. Imisebenzi ye-hydroxyteethy kwi-olid yokuqhuba ioyile

2.1 Ulawulo lwe-viscosity

I-Hec isebenza njenge-Rheology Modifier, ibonelela ngolawulo malunga nohlobo lwe-vissity ye-fluid. Ukukwazi ukuhlengahlengisa i-viscofity kubalulekile ukuze kube lula ukwenziwa kweepropathi zokuhamba kolwelo phantsi kweemeko ezahlukeneyo zokumba.

2.2 Ukunqunyulwa kokunqunyulwa

Kwinkqubo yokuqhuba, ukusikwa kwamatye kuveliswa, kwaye kubalulekile ukuba unqunyulwe ezi zinto zisikweyo kwi-fluid fluid ukususwa kwequla. I-hec inceda ukugcina ukunqunyanyiswa okuzinzileyo kokusikelwa.

2.3 Ukucoca hole

Ukucoca umngxunya wokucoca kubalulekile kwinkqubo yokuqhuba. I-HEC inegalelo kumandla ombhobho wokuphatha kunye nokuhamba nokuhamba kumphezulu, ukuthintela ukuqokelelwa kwequla kunye nokukhuthaza imisebenzi yokuqhuba efanelekileyo yokuqhuba.

2.4 Uzinzo lobushushu

I-HEC ibonisa uzinzo lobushushu obuhle, lenza ilungele ukusetyenziswa kwii-falls ezinokuthi zidibane nobushushu benkqubo yokuqhuba.

I-3. Izicelo kwii-oniding zeoyile

3.1 I-fluaids esekwe emanzini

I-HEC idla ngokusetyenziswa kulwelo olusekwe emanzini, ukubonelela ngolawulo lwe-Vicofity, ukunqunyulwa kokunqunyanyiswa, kunye nokuzinza. Iphucula intsebenzo ngokubanzi yodaka olusekwe emanzini kwiindawo ezahlukeneyo zokumba.

3.2 I-Shale Thibing

I-hec inokuba negalelo kwi-Shale Thibing ngokwenza umqobo okhuselayo kwiindonga zequlanere. Oku kunceda ukukhusela ukudumba kunye nokungasebenzi kakuhle kwenkqubo ye-shale, ukugcina uzinzo lwe-cedbore.

3.3 Ulawulo lweShishini lokuSebenzisa

Ekuthambekeni kwemisebenzi apho ilahleko ye-fluid kuso inkxalabo, i-HEC inokubandakanywa ekunikezelweni ukulawula ukujikeleza okulahlekileyo, ukuqinisekisa ukuba i-fluid fluid ihlala kwi-fletbore.

4. Iingqwalaselo kunye namanyathelo okhuseleko

Uxinzelelo

Ukuxinezeleka kwe-hec ekuthambekeni i-fluids kufuneka ilawulwe ngononophelo ukufezekisa iipropathi zeRhaiological enqwenelekayo ngaphandle kokubangela ukuthamba okugqithisileyo okanye ukuchaphazela kakubi ezinye iimpawu ze-fluid.

4.2 Ukuhambelana

Ukuhambelana nezinye izongezelelo zokuntywila kunye nezinto zibalulekile. Kuya kufuneka kuthathelwe ingqalelo ngononophelo ukuze kuthathwe konke ukwenziwa kokuthintela imiba efana nokusetyenziswa okanye ukunciphisa ukusebenza.

4.3 Ulawulo oluyimfihlakalo

Ngelixa i-hec inokufaka igalelo kulawulo lwelahleko lokulahleka, ezinye izongezo zinokuba yimfuneko ukuba ijongane nemicimbi ethile yokulahleka komhlaba kwaye uqhubeke nolawulo oluyisityalo.

5. Ukuqukumbela

I-HydroxyEtheetheetheethy idlala indima ebalulekileyo kwimisebenzi yokuqhuba ioyile ngokufaka igalelo ekusebenzeni nasezinzo zolwelo. Njengearhente yokufota, inceda ukulawula iipropathi ze-fluid, ukunqumamisa ukusikwa, kwaye kugcinwe iziqu zozinzo. Iifomula kufuneka ziqwalasele ngononophelo loxinzelelo, ukungqinelana, kunye nokwenziwa kwenkqubo ukuqinisekisa ukuba i-HC yandisa izibonelelo zayo kwizicelo zokuqhuba ioyile.