I-Carboxymethyl cellulose (CMC) yi-polymer enyibilikayo emanzini ephuma kwi-cellulose, esetyenziswa kakhulu kumashishini ahlukeneyo ngenxa yeempawu zayo zokutyeba, ukuzinza, kunye nokuxubha. I-CMC ene-viscosity ephezulu (CMC-HV) ngokukodwa ineempawu ezikhethekileyo ezenza ukuba ibe luncedo kakhulu kwizicelo ezinxulumene ne-petroleum.
1. Ulwakhiwo lweeKhemikhali kunye nokuQulunqwa kwazo
I-CMC iveliswa kukuguqulwa kweekhemikhali ze-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zezityalo. Le nkqubo ibandakanya ukungeniswa kwamaqela e-carboxymethyl (-CH2-COOH) kumqolo we-cellulose, okwenza i-cellulose inyibilike emanzini. Iqondo lokutshintshwa (DS), elibhekisa kwinani eliqhelekileyo lamaqela e-carboxymethyl ngeyunithi nganye ye-anhydroglucose kwimolekyuli ye-cellulose, lichaphazela kakhulu iipropati ze-CMC. I-CMC ene-viscosity ephezulu ye-petroleum grade ine-DS ephezulu, nto leyo ephucula ukunyibilika kwayo emanzini kunye ne-viscosity.
2. Ubunzulu obuphezulu
Uphawu olucacileyo lwe-CMC-HV kukuxinana kwayo okuphezulu xa inyibilikisiwe emanzini. Ukuxinana kukulinganisa ukumelana kolwelo nokuhamba kwamanzi, kwaye ukuxinana okuphezulu kwe-CMC kwenza isisombululo esityebileyo, esifana nejeli nokuba kumanqanaba aphantsi. Le mpawu ibalulekile ekusetyenzisweni kwepetroleum apho i-CMC-HV isetyenziselwa ukuguqula iipropati ze-rheological zolwelo lokugrumba kunye nezinye iindlela. Ukuxinana okuphezulu kuqinisekisa ukumiswa okusebenzayo kwezinto eziqinileyo, ukuthambisa okungcono, kunye nokuzinza okuphuculweyo kodaka lokugrumba.
3. Ukunyibilika kwamanzi
I-CMC-HV inyibilika kakhulu emanzini, nto leyo eyimfuneko ephambili ekusetyenzisweni kwayo kwishishini lepetroleum. Xa idityaniswe kwimixube esekwe emanzini, inyibilikisa ngokukhawuleza kwaye inyibilike, yenze isisombululo esifanayo. Oku kunyibilika kubalulekile ekulungiseleleni nasekusebenziseni ngokufanelekileyo ulwelo lokugrumba, i-slurry yesamente, kunye nolwelo lokugqiba ukusebenza kwepetroleum.
4. Uzinzo lobushushu
Imisebenzi yepetroliyam idla ngokubandakanya iindawo ezinobushushu obuphezulu, kwaye ukuzinza kobushushu beCMC-HV kubalulekile. Olu didi lweCMC lwenzelwe ukugcina ubungqindilili bayo kunye nokusebenza kwayo phantsi kobushushu obuphezulu, ngesiqhelo ukuya kuthi ga kwi-150°C (302°F). Olu zinzo lobushushu luqinisekisa ukusebenza rhoqo kwiinkqubo zokubhola kunye nemveliso ezinobushushu obuphezulu, ukuthintela ukuwohloka kunye nokulahleka kweempawu.
5. Uzinzo lwe-pH
I-CMC-HV ibonakalisa uzinzo oluhle kuluhlu olubanzi lwe-pH, ngesiqhelo ukusuka kwi-4 ukuya kwi-11. Olu zinzo lwe-pH lubalulekile kuba ulwelo lokubhola kunye nezinye iindlela ezinxulumene nepetroleum zinokuhlangabezana neemeko ezahlukeneyo ze-pH. Ukugcina i-viscosity kunye nokusebenza kwiindawo ezahlukeneyo ze-pH kuqinisekisa ukusebenza kakuhle kunye nokuthembeka kwe-CMC-HV kwiimeko ezahlukeneyo zokusebenza.
6. Ukunyamezelana neTyuwa
Kwizinto ezisetyenziswa kwi-petroleum, ulwelo ludla ngokudibana neetyuwa ezahlukeneyo kunye nee-electrolytes. I-CMC-HV yenzelwe ukuba ikwazi ukumelana nezi meko, igcine ubungqingqwa bayo kunye neempawu zokusebenza xa kukho iityuwa. Olu xikelelo lokunyamezela ityuwa luluncedo ngakumbi ekugrumbeni olwandle nakwezinye iindawo apho iimeko zetyuwa zixhaphakileyo.
7. Ulawulo lokuhluza
Omnye wemisebenzi ephambili ye-CMC-HV kulwelo lokugrumba kukulawula ukulahleka kolwelo, okwaziwa ngokuba lulawulo lokuhluza. Xa isetyenziswa kudoti lokugrumba, i-CMC-HV inceda ekwenzeni ikhekhe lesihluzo elincinci nelingangeni manzi eludongeni lomngxuma, ithintela ukulahleka kolwelo oluninzi ekubunjweni. Olu lawulo lokuhluza lubalulekile ekugcineni uzinzo lwemibhobho kunye nokuthintela umonakalo ekubunjweni.
8. Ukubola kwezinto eziphilayo kunye nempembelelo kwindalo esingqongileyo
Njengokhetho olukhathalele okusingqongileyo, i-CMC-HV iyabola kwaye isuka kwizixhobo ezivuselelekayo. Ukubola kwayo kuthetha ukuba iyabola ngokwendalo ngokuhamba kwexesha, inciphisa impembelelo yokusingqongileyo xa ithelekiswa nee-polymers zokwenziwa. Olu phawu lubaluleke ngakumbi njengoko ishishini le-petroleum ligxila ekuzinzeni nasekunciphiseni iimpawu zokusingqongileyo.
9. Ukuhambelana nezinye izongezo
I-CMC-HV idla ngokusetyenziswa kunye nezinye izongezo kwi-drilling fluids nakwezinye ii-petroleum formulations. Ukuhambelana kwayo neekhemikhali ezahlukeneyo, ezifana ne-xanthan gum, i-guar gum, kunye nee-synthetic polymers, kuvumela ukwenziwa ngokwezifiso kweempawu ze-fluid ukuze kuhlangatyezwane neemfuno ezithile zokusebenza. Oku kuguquguquka kuphucula ukusebenza kunye nokusebenza kakuhle kwe-drilling fluids.
10. Ukutyeba
Kwimisebenzi yokugrumba, ukunciphisa ukungqubana phakathi kwentambo yokugrumba kunye nomngxuma kubalulekile ukuze kugrunjwe ngokufanelekileyo kwaye kuncitshiswe ukuguguleka. I-CMC-HV inegalelo ekuthambiseni ulwelo lokugrumba, inciphisa i-torque kunye nokutsalwa, kwaye iphucula ukusebenza kakuhle kwenkqubo yokugrumba. Olu thambise lukwanceda ekwandiseni ubomi bezixhobo zokugrumba.
11. Ukumiswa kunye nozinzo
Ukukwazi ukuxhoma nokuzinzisa izinto eziqinileyo kulwelo lokubhola kubalulekile ekuthinteleni ukuzinza nokuqinisekisa ukuba izinto ziyafana kulo lonke ulwelo. I-CMC-HV inika amandla okuxhoma agqwesileyo, igcina izinto zokulinganisa ubunzima, iziqwenga, kunye nezinye izinto eziqinileyo zisasazwa ngokulinganayo. Olu zinzo lubalulekile ekugcineni iimpawu zolwelo lokubhola zihlala zihleli kwaye kuthintelwe iingxaki zokusebenza.
12. Iingenelo Ezithile Kwisicelo
Ulwelo Lokugrumba: Kulwelo lokugrumba, i-CMC-HV yonyusa uburhabaxa, ilawula ukulahleka kolwelo, izinzisa umngxuma, kwaye ibonelela ngokuthambisa. Iimpawu zayo ziqinisekisa ukusebenza kakuhle kokugrumba, zinciphisa impembelelo yokusingqongileyo, kwaye ziphucula ukusebenza ngokubanzi kwenkqubo yolwelo lokugrumba.
Ulwelo Lokugqiba: Kwizinto ezigqityiweyo, i-CMC-HV isetyenziselwa ukulawula ukulahleka kolwelo, ukuzinzisa i-wellbor, nokuqinisekisa ukuthembeka kwenkqubo yokugqiba. Uzinzo lwayo lobushushu kunye nokuhambelana kwayo nezinye izongezo kwenza ukuba ifaneleke ukusetyenziswa kwimithombo enobushushu obuphezulu, enoxinzelelo oluphezulu.
Imisebenzi Yokufaka I-samente: Kwi-slurry zesamente, i-CMC-HV isebenza njenge-viscosifier kunye ne-arhente yokulawula ukulahleka kolwelo. Inceda ekufezekiseni iipropati ezifunekayo ze-rheological ze-slurry yesamente, iqinisekisa ukubekwa kakuhle kunye nokubekwa kwesamente, kwaye ithintela ukuhamba kwegesi kunye nokulahleka kolwelo.
I-CMC (i-CMC-HV) ekumgangatho ophezulu we-petroleum yi-polymer eguquguqukayo nebalulekileyo kwishishini le-petroleum. Iimpawu zayo ezikhethekileyo, kubandakanya i-viscosity ephezulu, ukunyibilika kwamanzi, uzinzo lobushushu kunye ne-pH, ukunyamezela ityuwa, ulawulo lokucoca, ukubola kwezinto eziphilayo, kunye nokuhambelana nezinye izongezo, zenza ukuba ibe yinto eyimfuneko kwizicelo ezahlukeneyo ezinxulumene ne-petroleum. Ukususela kulwelo lokumba ukuya kwimisebenzi yokugqitywa kunye nokufaka i-samente, i-CMC-HV iphucula ukusebenza, ukusebenza kakuhle, kunye nokuzinza kokusingqongileyo kwenkqubo yokukhupha i-petroleum kunye nemveliso. Njengoko ishishini liqhubeka nokukhula, imfuno yezongezo ezisebenzayo nezinobuhlobo nokusingqongileyo ezifana ne-CMC-HV iya kwanda kuphela, igxininisa indima yayo ebalulekileyo kwimisebenzi ye-petroleum yanamhlanje.
Ixesha leposi: Juni-06-2024