Yintoni i-PAC kulwelo lokugrumba?

Kwizinto ezisetyenziswa ekubholeni, i-PAC ibhekisa kwi-polyanionic cellulose, eyinxalenye ebalulekileyo esetyenziswa ekubholeni udaka. Udaka lokubhoboza, okwaziwa ngokuba lulwelo lokubhoboza, ludlala indima ebalulekileyo kwinkqubo yokubhoboza imigodi yeoyile negesi. Lusebenza ngeenjongo ezahlukeneyo, ezinje ngokupholisa nokuthambisa ii-drill bits, ukuthutha iziqwenga ziye kumphezulu, ukubonelela ngozinzo lwe-wellbore, kunye nokulawula uxinzelelo lokwakheka.

I-polyanionic cellulose yi-polymer enyibilikayo emanzini ephuma kwi-cellulose, i-polymer yendalo efumaneka kwizityalo. I-PAC yongezwa kulwelo lokubhola ukuze iphucule i-rheology kunye neempawu zokulawula ukuhluza.

1. Ulwakhiwo lweekhemikhali kunye neempawu ze-polyanionic cellulose (PAC):

I-PAC yi-polymer ye-cellulose eguquliweyo ene-anionic charge.
Ulwakhiwo lwayo lweekhemikhali lwenza ukuba inyibilike lula emanzini, nto leyo eyenza isisombululo esizinzileyo.
Indalo ye-anionic ye-PAC inegalelo ekubeni ikwazi ukusebenzisana nezinye izinto ezikulwelo lokugrumba.

2. Iimpawu ze-rheological eziphuculweyo:

I-PAC isetyenziselwa ukuguqula iipropati ze-rheological ze-drilling fluids.
Ichaphazela i-viscosity, amandla ejeli kunye nolawulo lokulahleka kolwelo.
Ukulawula i-rheology kubalulekile ekuphuculeni ukuthuthwa kwezihlahla kunye nokugcina uzinzo lwe-wellbore.

3. Ulawulo lwefilitha:

Omnye wemisebenzi ephambili ye-PAC kukulawula ukulahleka kolwelo ngexesha lokugrumba.
Yenza ikeyiki yesihluzo esincinci, esingangeni manzi eludongeni lomthombo, ithintela ukulahleka kolwelo lokugrumba kwindawo eyakhiweyo.
Oku kunceda ukugcina iipropati ezifunekayo zodaka lokugrumba kunye nokuthintela umonakalo wokwakheka.

4. Uzinzo lwe-Wellbore:

I-PAC inegalelo ekuzinzeni kwe-wellbore ngokuthintela ulwelo olugqithisileyo ukuba lungangeni ekwakhiweni.
Inceda ekunciphiseni iingxaki zokubanjwa kwemisipha kunye nezinye iingxaki ezinxulumene nokungazinzi kwemisipha.
Uzinzo lwe-Wellbore lubalulekile kwimpumelelo yemisebenzi yokugrumba.

5. Iintlobo ze-PAC kunye nezicelo zazo:

Iindidi ezahlukeneyo ze-PAC ziyafumaneka ngokuxhomekeke kubunzima beemolekyuli kunye nenqanaba lokutshintshwa.
IiPAC ezixineneyo kakhulu zihlala zisetyenziswa apho kufuneka ulawulo oluphezulu lwe-rheology.
Kwizicelo apho ulawulo lokulahleka kolwelo luyinto ephambili, i-PAC ene-viscosity ephantsi inokukhethwa.

6. Izinto eziqwalaselwayo malunga nokusingqongileyo:

I-PAC idla ngokuthathwa njengenobuhlobo nokusingqongileyo kuba iyabola.
Uvavanyo lwempembelelo kokusingqongileyo lwenziwe ukuqinisekisa ukusetyenziswa nokulahlwa kolwelo lokugrumba olune-PAC ngendlela efanelekileyo.

7. Ulawulo lomgangatho kunye novavanyo:

Kusetyenziswa amanyathelo angqongqo okulawula umgangatho ukuqinisekisa ukusebenza kakuhle kwe-PAC kulwelo lokugrumba.
Uvavanyo olwahlukeneyo, kuquka ukulinganisa i-rheological kunye novavanyo lokulahleka kolwelo, lwenziwe ukuvavanya ukusebenza kodaka lokugrumba olune-PAC.

8. Imingeni kunye nezinto ezintsha:

Nangona isetyenziswa kakhulu, imingeni efana nokuzinza kobushushu kunye nokuhambelana nezinye izongezo inokuvela.
Uphando oluqhubekayo kunye nokuvelisa izinto ezintsha zizinikele ekusombululeni le mingeni kunye nokuphucula ukusebenza ngokubanzi kwe-PAC kulwelo lokugrumba.

I-Polyanionic cellulose (PAC) yinxalenye ebalulekileyo kwi-drilling fluid formulations kwaye inegalelo kulawulo lwe-rheology, ulawulo lokucoca kunye nozinzo lwe-wellbore. Iimpawu zayo ezikhethekileyo zenza ukuba ibe sisongezelelo esibalulekileyo kwishishini lokugrumba ioyile negesi, idlala indima ephambili kwimpumelelo kunye nokusebenza kakuhle kwemisebenzi yokugrumba.