Ukusetshenziswa kwe-sodium carboxymethyl cellulose ku-drilling fluid

I-Sodium carboxymethyl cellulose (CMC-Na ngamafuphi) iyinhlanganisela ebalulekile ye-polymer encibilika emanzini futhi isetshenziswa kabanzi oketshezini lokubhoboza uwoyela. Izakhiwo zayo eziyingqayizivele ziyenza ibe yingxenye ebalulekile ohlelweni loketshezi lokubhoboza.

1. Izakhiwo eziyisisekelo ze-sodium carboxymethyl cellulose

I-Sodium carboxymethyl cellulose iyi-anionic cellulose ether ekhiqizwa yi-cellulose ngemuva kokwelashwa nge-alkali kanye ne-chloroacetic acid. Isakhiwo sayo sama-molecule siqukethe inani elikhulu lamaqembu e-carboxymethyl, okwenza ibe nokuncibilika kwamanzi okuhle kanye nokuqina. I-CMC-Na ingakha isixazululo esinokuqina okuphezulu emanzini, esinokuqina, ukuzinza kanye nezakhiwo zokwakha ifilimu.

2. Ukusetshenziswa kwe-sodium carboxymethyl cellulose ku-drilling fluid

Isiqinisi

I-CMC-Na isetshenziswa njengesithambisi kuketshezi lokubhoboza. Umsebenzi wayo oyinhloko ukwandisa ubulukhuni boketshezi lokubhoboza nokuthuthukisa ikhono layo lokuthwala izingcezu zamatshe kanye nezingcezu zokubhoboza. Ubulukhuni obufanele boketshezi lokubhoboza bungavimbela ngempumelelo ukubhidlika kodonga lomthombo futhi bugcine ukuzinza komgodi womthombo.

Isinciphisi sokulahlekelwa uketshezi

Ngesikhathi senqubo yokubhoboza, uketshezi lokubhoboza luzongena ezimbotsheni zokwakheka, okubangela ukulahleka kwamanzi oketshezini lokubhoboza, olungagcini nje ngokuchitha uketshezi lokubhoboza, kodwa futhi lungabangela ukubhidlika kodonga lomthombo kanye nomonakalo wedamu. Njengomnciphisi wokulahleka koketshezi, i-CMC-Na ingakha ikhekhe lokuhlunga eliqinile odongeni lomthombo, inciphise ngempumelelo ukulahleka kokuhlunga koketshezi lokubhoboza futhi ivikele ukwakheka nodonga lomthombo.

Isithambisi

Ngesikhathi senqubo yokubhoboza, ukungqubuzana phakathi kwengxenye yokubhoboza nodonga lomthombo kuzokhiqiza ukushisa okuningi, okuholela ekugugeni okukhulu kwethuluzi lokubhoboza. Ukugcotshwa kwe-CMC-Na kusiza ekunciphiseni ukungqubuzana, ukunciphisa ukuguguleka kwethuluzi lokubhoboza, nokuthuthukisa ukusebenza kahle kokubhoboza.

Isiqinisi

Uketshezi lokubhoboza lungagobhoza noma luwohloke ngaphansi kokushisa okuphezulu kanye nomfutho ophezulu, ngaleyo ndlela lulahlekelwe umsebenzi walo. I-CMC-Na inokuqina okuhle kokushisa kanye nokumelana nosawoti, futhi ingagcina ukuqina koketshezi lokubhoboza ngaphansi kwezimo ezinzima futhi yandise impilo yalo yokusebenza.

3. Indlela yokusebenza kwe-sodium carboxymethyl cellulose

Ukulungiswa kwe-viscosity

Isakhiwo sama-molecule se-CMC-Na siqukethe inani elikhulu lamaqembu e-carboxymethyl, angakha izibopho ze-hydrogen emanzini ukuze kwandiswe i-viscosity yesisombululo. Ngokulungisa isisindo sama-molecule kanye nezinga lokufaka esikhundleni se-CMC-Na, i-viscosity yoketshezi lokubhoboza ingalawulwa ukuze kuhlangatshezwane nezidingo zezimo ezahlukene zokubhoboza.

Ukulawula ukuhlunga

Ama-molecule e-CMC-Na angakha isakhiwo senethiwekhi esinezilinganiso ezintathu emanzini, esingakha ikhekhe lesihlungi eliminyene odongeni lomthombo futhi sinciphise ukulahleka kokuhluzwa koketshezi lokubhoboza. Ukwakheka kwekhekhe lesihlungi akuxhomekile kuphela ekugxilweni kwe-CMC-Na, kodwa futhi nasesindweni sayo sama-molecule kanye nezinga lokufaka esikhundleni.

Ukuthambisa

Ama-molecule e-CMC-Na angamuncwa ebusweni be-drill bit kanye nodonga lomthombo emanzini ukuze akhe ifilimu yokugcoba futhi anciphise i-friction coefficient. Ngaphezu kwalokho, i-CMC-Na inganciphisa ngokungaqondile ukungqubuzana phakathi kwe-drill bit kanye nodonga lomthombo ngokulungisa i-viscosity yoketshezi lokubhoboza.

Ukuqina kokushisa

I-CMC-Na ingagcina ukuqina kwesakhiwo sayo sama-molecule ngaphansi kwezimo zokushisa okuphezulu futhi ayithambekeli ekuwohlokeni kokushisa. Lokhu kungenxa yokuthi amaqembu e-carboxyl kuma-molecule ayo angakha izibopho ze-hydrogen ezizinzile nama-molecule amanzi ukuze amelane nokulimala kokushisa okuphezulu. Ngaphezu kwalokho, i-CMC-Na nayo inokumelana okuhle nosawoti futhi ingagcina ukusebenza kwayo ekwakhekeni kosawoti. 

4. Izibonelo Zokusetshenziswa kwe-Sodium Carboxymethyl Cellulose

Enkambisweni yokubhoboza yangempela, umphumela wokusetshenziswa kwe-sodium carboxymethyl cellulose uyamangalisa. Isibonelo, kuphrojekthi yokubhoboza imithombo ejulile, uhlelo loketshezi lokubhoboza oluqukethe i-CMC-Na lwasetshenziswa ukulawula ngempumelelo ukuzinza nokulahleka kokuhlunga kwe-wellbor, ukwandisa isivinini sokubhoboza, nokunciphisa izindleko zokubhoboza. Ngaphezu kwalokho, i-CMC-Na isetshenziswa kabanzi ekubhobozeni olwandle, futhi ukumelana kwayo nosawoti okuhle kwenza isebenze kahle endaweni yasolwandle.

Ukusetshenziswa kwe-sodium carboxymethyl cellulose kuketshezi lokubhoboza kuhlanganisa kakhulu izici ezine: ukuqina, ukunciphisa ukulahleka kwamanzi, ukuthambisa kanye nokuzinza. Izakhiwo zayo eziyingqayizivele zomzimba nezamakhemikhali zenza kube yingxenye ebalulekile ohlelweni loketshezi lokubhoboza. Ngokuthuthuka okuqhubekayo kobuchwepheshe bokubhoboza, amathuba okusetshenziswa kwe-sodium carboxymethyl cellulose azoba maningi. Ocwaningweni oluzayo, isakhiwo sama-molecule kanye nezindlela zokuguqulwa kwe-CMC-Na zingathuthukiswa ukuze kuthuthukiswe ukusebenza kwayo futhi kuhlangatshezwane nezidingo zezindawo zokubhoboza eziyinkimbinkimbi kakhulu.