Ukusetyenziswa kweCMC kwi OilfieldIshishini

I-Carboxymethyl cellulose (CMC) isetyenziswa ngokubanzi kwishishini le-oilfield kwizicelo ezahlukeneyo ngenxa yeempawu zayo ezizodwa kunye nokusebenza. Isebenza njengesongezo esiguquguqukayo kulwelo lokomba, ulwelo lokugqibezela, kunye nodaka lwesamente, phakathi kwezinye iinkqubo. Nalu usetyenziso oluqhelekileyo lwe-CMC kwishishini le-oyile:

1. Ukugrunjwa kwamanzi:

• I-Viscosifier: I-CMC isetyenziswa njenge-agent ye-viscosifying kumanzi okomba asekelwe emanzini ukwandisa i-viscosity kunye nokuphucula umthamo wokuthwala ulwelo. Inceda ukugcina uzinzo lwe-wellbore, ukunqumamisa ukusikwa, kunye nokulawula ukulahleka kolwelo ngexesha lomsebenzi wokomba.
• Ulawulo lwelahleko yolwelo: I-CMC isebenza njengearhente yokulawula ilahleko yolwelo ngokwenza ikeyiki ecekethekileyo, enganyangekiyo yokucoca eludongeni lomthombo, ukuthintela ukulahleka kolwelo olugqithisileyo ekubunjweni kwayo.
• I-Shale Inhibition: I-CMC inceda ukuthintela ukudumba kwe-shale kunye nokusasazwa ngokugquma imiphezulu ye-shale kunye nokuthintela ukuhanjiswa kwamasuntswana odongwe, ukunciphisa umngcipheko wokungazinzi kwe-wellbore kunye neziganeko zombhobho obambekayo.
• Ukuzinziswa kodongwe: I-CMC izinzisa iiminerali zodongwe ezisebenzayo kulwelo lokomba, ukuthintela ukudumba kodongwe nokufuduka, kunye nokuphucula ukusebenza kakuhle kokomba kwizinto ezinodongwe olutyebileyo.

2. Ulwelo lokugqibezela:

• Ukulawulwa kwelahleko yolwelo: I-CMC yongezwa kumanzi okugqiba ukulawula ukulahleka kwamanzi ekubunjweni ngexesha lokugqitywa kakuhle kunye nokusebenza komsebenzi. Inceda ukugcina ingqibelelo yokwakheka kunye nokuthintela umonakalo wokwakheka.
• Uzinziso lwe-Shale: I-CMC inceda ekuzinziseni i-shale kunye nokuthintela ukuhanjiswa kwe-shale kunye nokudumba ngexesha lokugqitywa kwemisebenzi, ukunciphisa ukungazinzi kwemithombo yamanzi kunye nokuphucula imveliso elungileyo.
• I-Filter Cake Formation: I-CMC ikhuthaza ukubunjwa kwe-uniform, ikhekhe lokucoca elingenakunqongophala ebusweni bokuqulunqa, ukunciphisa uxinzelelo oluhlukeneyo kunye nokufuduka kwamanzi ekubunjweni.

3. Ukufaka isamente kwiiSlurry:

• I-Fluid Loss Additive: I-CMC isebenza njengesongezo selahleko yolwelo kwi-slurries yesamente ukunciphisa ilahleko yolwelo kwiindlela ezinokungena kunye nokuphucula ukusebenza kakuhle kokubeka isamente. Inceda ukuqinisekisa ukwahlukaniswa kwendawo okufanelekileyo kunye nokudibanisa kwesamente.
• I-Agent yokutyebisa: I-CMC isebenza njenge-ejenti yokuqina kwi-slurries yesamente, ibonelela ngolawulo lwe-viscosity kunye nokuphucula ukumpompa kunye nokunqunyanyiswa kwamasuntswana e-samente ngexesha lokubekwa.
• I-Rheology Modifier: I-CMC ilungisa i-rheology ye-slurries yesamente, iphucula iipropathi zokuhamba, ukuxhathisa kwe-sag, kunye nokuzinza phantsi kweemeko ze-downhole.

4. UkuFumana i-Oli eyongezelelweyo (EOR):

• Ukukhukula kwamanzi: I-CMC isetyenziswa kwimisebenzi yokukhukula kwamanzi ukunyusa ukusebenza kakuhle kokutshayela kunye nokuphucula ukubuyiswa kwe-oyile kwiidama. Yandisa i-viscosity yamanzi inaliti, iphucula ulawulo lokuhamba kunye nokusebenza kakuhle kokuhamba.
• Izikhukula zePolymer: Kwizicelo zezikhukula zepolymer, i-CMC iqeshwe njengearhente yokulawula ukushukumiseka ukuphucula ukuhambelana kweepolymers ezitofwayo kunye nokwandisa ukusebenza kakuhle kokususa ulwelo.

5. Ulwelo oluqhekezayo:

• I-Viscosifier ye-Fluid: I-CMC isetyenziswa njenge-ejenti ye-viscosifying kulwelo lwe-hydraulic fracturing ukunyusa i-viscosity yolwelo kunye nomthamo wokuthwala. Inceda ekudaleni nasekugcineni iifractures ekubunjweni kunye nokuphucula ukuthuthwa kwepropant kunye nokubekwa.
• Uphuculo lwe-Fracture Conductivity: I-CMC inceda ekugcineni ukunyaniseka kwepakethi ye-propant kunye ne-fracture conductivity ngokunciphisa ukuvuza kwamanzi ekubunjweni kunye nokuthintela ukulungiswa kwe-propant.

Isishwankathelo,carboxymethyl cellulose(CMC) idlala indima ebalulekileyo kwizicelo ezahlukeneyo kwishishini le-oyile, kubandakanya ulwelo lokomba, ulwelo lokugqibezela, ulwelo lwesamente, ukubuyiswa kwe-oyile eyandisiweyo (EOR), kunye nolwelo oluqhekezayo. Ukuguquguquka kwayo njengearhente yokulawula ilahleko yolwelo, i-viscosifier, inhibitor ye-shale, kunye ne-rheology modifier iyenza ibe yinto eyongeziweyo eyimfuneko ekuqinisekiseni ukusebenza ngempumelelo kunye nempumelelo kwindawo yeoli.