I-Polyanionic cellulose (PAC) yipolymer enyibilikayo emanzini esetyenziswa ngokuqhelekileyo kwishishini leoli kunye negesi njenge-drilling fluid additive.I-PAC iphuma kwi-cellulose, eyona nxalenye yokwakheka kweendonga zesityalo.I-PAC iphumelela kakhulu ekuphuculeni iimpawu ze-rheological zolwelo lokomba, ezifana ne-viscosity, ulawulo lwelahleko yolwelo, kunye neempawu zokumiswa.Eli nqaku liza kuxoxa ngeepropati, usetyenziso, kunye noncedo lwePAC kulwelo lokomba i-petroleum.

Iipropati zePolyanionic Cellulose

I-PAC yipolymer enyibilikayo emanzini ephuma kwi-cellulose.Yikhompawundi ephezulu ye-molecular weight equkethe i-carboxymethyl kunye namaqela e-hydroxyl.Iqondo lokutshintshela (DS) lePAC libhekisa kumndilili wenani lamaqela e-carboxymethyl ngokweyunithi ye-anhydroglucose yomqolo weseli.Ixabiso le-DS liyiparameter ebalulekileyo echaphazela iimpawu zePAC, ezifana ne-solubility yayo, i-viscosity, kunye nokuzinza kwe-thermal.

I-PAC inesakhiwo esikhethekileyo esivumela ukuba idibane neemolekyuli zamanzi kunye nezinye iipolymers kwi-drilling fluids.Iimolekyuli zePAC zenza uthungelwano olunamacala amathathu ebhondi ye-hydrogen kunye nokusebenzisana kwe-electrostatic kunye neemolekyuli zamanzi kunye nezinye izongezo ze-polymeric, njenge-xanthan gum okanye i-guar gum.Esi sakhiwo sothungelwano siphucula i-viscosity kunye nokuziphatha kwe-shear-thinning ye-drilling fluids, eziyimpahla ebalulekileyo ekusebenzeni ngokufanelekileyo kokomba.

Ukusetyenziswa kwePolyanionic Cellulose

I-PAC yipolymer eguquguqukayo enokuthi isetyenziswe kwiinkqubo ezahlukeneyo zokwemba ulwelo, ezinje ngodaka olusekwe emanzini, udaka olusekwe kwi-oyile, kunye nodaka olusekwe kwi-synthetic.I-PAC isetyenziswa kakhulu kudaka olusekwe emanzini ngenxa yokunyibilika kwayo kakuhle kwamanzi kunye nokuhambelana nezinye izongezo.I-PAC yongezwa kwi-drilling fluids kwi-concentrations ukusuka kwi-0.1% ukuya kwi-1.0% ngobunzima, ngokuxhomekeke kwiimeko ezithile zokomba kunye neenjongo.

I-PAC isetyenziselwa ukugrumba ulwelo kwizicelo ezininzi, kubandakanya:

1. I-Viscosification: I-PAC yonyusa i-viscosity yolwelo lokomba, olunceda ukunqumamisa kunye nokuthutha amaqhekeza kunye nezinye izinto eziqinileyo ngaphandle kwequla.I-PAC ikwanceda ukugcina ingqibelelo yequla ngokunqanda ukulahleka kolwelo kwiindlela ezinokungena.
2. Ulawulo lwelahleko yolwelo: I-PAC isebenza njenge-arhente yokulawula ilahleko yolwelo ngokwenza ikeyiki ecekethekileyo, engatshoniyo yokuhluza kudonga lomngxuma.Le khekhe yokucoca ikhusela ukulahlekelwa kwe-drilling fluid ekubunjweni, okunokubangela umonakalo wokwakheka kunye nokunciphisa ukusebenza kakuhle kwemisebenzi yokugaya.
3. Uthintelo lwe-Shale: I-PAC inolwakhiwo olulodwa oluyivumelayo ukuba inxibelelane nezimbiwa zodongwe kunye nokwakheka kweeshale.Oku kubhengezwa kunciphisa ukudumba kunye nokusasazeka kweendlela ze-shale, ezinokubangela ukungazinzi kwe-wellbore kunye nezinye iingxaki zokomba.

Izibonelelo zePolyanionic Cellulose

IPAC ibonelela ngeenzuzo ezininzi kwimisebenzi yokomba, kubandakanya:

1. Ukuphuculwa kokusebenza kokugrumba: I-PAC iphucula iipropathi zerheological zolwelo lokomba, olufana ne-viscosity kunye nolawulo lokulahleka kolwelo.Oku kuphucula ukusebenza kakuhle kwemisebenzi yokomba ngokunciphisa ixesha kunye neendleko ezifunekayo ukumba iqula.
2. Ukukhuselwa kokuqulunqwa: I-PAC inceda ukugcina ingqibelelo ye-wellbore ngokuthintela ukulahlekelwa kwamanzi kunye nokunciphisa umonakalo wokwakheka.Oku kukhusela ukubunjwa kunye nokunciphisa umngcipheko wokungazinzi kwe-wellbore kunye nezinye iingxaki zokomba.
3. Ukuhambelana kokusingqongileyo: I-PAC yipolima enyibilikayo emanzini ekwazi ukubola kwaye iyahambelana nokusingqongileyo.Oku kuyenza ibe sisongezo esikhethwayo sokugrumba ulwelo kwiindawo ezibuthathaka kokusingqongileyo.

Ukuqukumbela

I-Polyanionic cellulose sisongezo esisebenza kakhulu kwi-petroleum yokomba ulwelo ngenxa yeempawu zayo ezizodwa kunye nokusetyenziswa okuguquguqukayo.I-PAC iphucula iipropathi zerheological zolwelo lokomba, iphucula ukusebenza kakuhle kokomba, kwaye ikhusela ukubunjwa kumonakalo.I-PAC ikwahambelana nokusingqongileyo kwaye ikhethwa kwiindawo ezinobuthathaka.Ukusetyenziswa kwePAC kulwelo lokomba kulindeleke ukuba kuqhubeke ukukhula kwixesha elizayo njengoko ishishini leoli negesi liqhubeka lifuna ubugcisa obutsha bokomba kunye neendlela zokunyusa imveliso kunye nokunciphisa iindleko.