Yini ukusetshenziswa kwe-cellulose ku-dilling mud?

I-Cellulose iyingxenye ehlukahlukene ye-organic enobubanzi bezicelo ezikhona ezimbonini ezahlukahlukene. Ukusetshenziswa okukodwa okubalulekile kwe-cellulose kudaka lokumba, oludlala indima ebalulekile enqubweni yokushayela kawoyela negesi.

Isingeniso sokumba udaka:
Ukushayela udaka, okwaziwa nangokuthi ukumba uketshezi, kunguketshezi olukhethekile olusetshenzisiwe ekusebenzeni kokumba ukwenza lula ukumba inqubo, gcina ukuqina kwe-Wellbore, kuphole ukumba kancane, bese ubeka ama-cuttings e-por. Kusebenza imisebenzi eminingi ebalulekile ekusebenzeni ngempumelelo kokubamba ngezimo ezahlukahlukene zezwe.

Ukubaluleka kwe-cellulose ku-Drilling Mud:
I-Cellulose iyingxenye esemqoka ezinhlotsheni eziningi zodaka lokumba ngenxa yezakhiwo zayo ezihlukile, ezinikela ekusebenzeni kahle nasekusebenzeni kahle kwenqubo yokumba. Imisebenzi eyinhloko yeselula yokumba udaka ifaka:

Ukulawulwa kwe-Viscosity: Izenzo ze-cellulose zingenza njenge-viscosifier ku-dirching mud, yandisa ukubonwa kwayo kanye nokwenza ngcono umthamo wayo wokutshala ama-dring. Lokhu kusiza ekuvinjelweni nasekuthutha ukusikwa kwe-dring kubuso, kuvimbela ukulungisa kwabo nokunqwabelana phansi komthombo.

Ukulawulwa kokulahlekelwa koketshezi: Izengezo ezenzelwe i-cellulose zisiza ukulawula ukulahleka kwamanzi uketshezi ngokwakha ikhekhe elincanyana, elingenakufinyeleleka odongeni lwe-Wellbore. Lokhu kunciphisa ukuhlaselwa koketshezi okumba ekwakhiweni kwe-poraus, ukunciphisa ukulimala kokwakheka kanye nokugcina ukuqina komthombo.

Ukuhlanza umgodi: Ukuba khona kwe-cellulose ku-Drilling Mud kuthuthukisa amandla alo okuhlanza kahle i-Wellbore ngokuphatha kahle ukumbamba kwe-drill ebusweni. Lokhu kuvimbela ukunqwabelana kokusika, okungavimba ukuqubuka inqubekela phambili futhi kuholele ekuhlulekeni kwemishini.

Ukuqina kokushisa: izengezo zokushisa zinikeza ukuqina okushisayo kuDring Mud, ukuvumela ukuthi kugcinwe izakhiwo nokusebenza kwayo ngaphansi kwezimo zokushisa okuphezulu okuhlangane nazo ekusebenzeni okujulile kokushayela. Lokhu kusiza ukuvikela ukulahleka kwe-viscosity futhi kuqinisekise ukusebenza kwe-ruding fluid okungaguquki.

Ukuvumelana kwemvelo Basiza ukunciphisa umthelela wezemvelo wokusebenza kokumba ngokunciphisa ukukhishwa kwamakhemikhali ayingozi emvelweni.

Izakhiwo ze-cellulose:
I-Cellulose iyi-polysaccharide polymer eyakhiwe ngama-glucose amayunithi axhumeke ndawonye ngu-β (1 → 4) amabhondi e-glycosidic. Izakhiwo zayo zenza ukuba zilungele ukusetshenziswa kahle ekudleni udaka:

I-Hydrophilic yemvelo: I-CelLose yi-hydrophilic, okusho ukuthi inobudlelwano obuqinile emanzini. Le mpahla ivumela i-cellulose ukuthi imuhle ngempumelelo futhi igcine amanzi, ifaka isandla emsebenzini wokulahleka kokulahleka koketshezi kodaka lokumba.

Isakhiwo se-polymer: Isakhiwo se-polymer se-cellulose sikuhlinzeka ngezakhiwo ezinhle kakhulu zefilimu, zinika amandla ikhekhe lokuhlunga elihlanganayo nelingapheli elingenakufinyeleleka odongeni lwe-Wellbore ukulawula ukulahleka kwamanzi.

Ukuqina okushisayo: I-cellulose ibonisa ukuqina okuhle okushisayo, okuvumela ukumelana namazinga okushisa aphezulu ahlangabezana nakho ngesikhathi sokumba ngaphandle kokuwohloka okukhulu. Le mpahla iqinisekisa ukusebenza okungaguquki kodaka olususelwa ku-cellulose-based on inkimba ye-stringing izimo.

I-Biodegradeabilibility: Enye yezinzuzo ezisemqoka ze-cellulose iyi-biodegrabilibility yayo. Ngemuva kokusebenzisa, izengezo zodaka ezisuselwa ku-cellulose zibhidliza ngokwemvelo zibe ngama-byproducts angenabungozi, ukunciphisa umthelela wezemvelo nokwenza lula izinqubo zokulahla.

Izinhlobo zezithasiselo ze-cellulose ezisetshenziselwa ukumba udaka:
Izinhlobo ezahlukahlukene zezengezo ezisuselwa ku-mopulele

IHydroxYethyl Cellulose (HEC): I-HEC iyi-polymer esolulekile enamanzi atholakala ku-cellulose ngokuguqulwa kwamakhemikhali. Isetshenziswa kakhulu njenge-viscosifier ne-ejenti yokulahlekelwa kokulahleka koketshezi kuketshezi olususelwa emanzini.

I-Carboxymethyl Cellulose (CMC): I-CMC i-cellulose derivative eguqulwe ngamaqembu e-carboxymethyl, athuthukise i-solubility yawo amanzi kanye nezakhiwo ezikhushulwa uketshezi. Isebenza kabanzi ekuvutheni ukwakhiwa kodaka kokulawulwa koketshezi kanye nokuthuthukiswa kwe-viscosity.

I-Microcrystalline Cellulose (MCC): I-MCC iqukethe izinhlayiya ezincane, ze-crystalline ze-cellulose ezikhiqizwe ngezinqubo ezisebenza ngomshini noma ze-enzymatic. Isetshenziswa ku-Drilling Mud njenge-ejenti yokulawula i-Filtration, isiza ukugcina ukuqina kahle ngokwakha ikhekhe lokuhlunga eliqinile.

I-Sodium carboxymethyl celtulose (NA-CMC): I-NA-CMC ingukusulwa kwamanzi okususelwa emanzini okusetshenziswayo ku-drive fluids for controls elahlekile kanye ne-rheological. Kuyasiza ukulondolozwa koketshezi futhi kuvimbela ukulahleka koketshezi kube yimikha ye-poraus.

I-Polyanionic Cellulose (PAC): I-PAC iyisilinganiso esisezingeni eliphakeme ngokufakwa esikhundleni se-anionic, idlulisa izakhiwo ezilawulwa yi-fluid fluid yokulahlekelwa kokulahlekelwa udaka oludonsa. Isebenza ngokukhethekile ezindaweni zokushisa okuphezulu nasezimpesheni eziphakeme.

Ukusetshenziswa kwe-cellulose ekuvuthweni kwemishini yokumba:
Izengezo ezisuselwa ku-Cellulose zivame ukufakwa ekuhlolweni kokwakheka kwe-daka ukugxila okucacisiwe ukuze kufinyelelwe izakhiwo ezilawulwa yi-herological and filltration. Ukukhethwa kwesengezo esifanelekile se-cellulose kuncike ezintweni ezifana nohlobo lwe-drive fluid, izimo ze-Wellbore, indawo yokumba, kanye nezidingo ezithile zokusebenza.

Kumanzi okumba amanzi asuselwa emanzini, izengezo ze-cellulose zivame ukuhlakazeka ku-fluid zisebenzisa imishini yokuguga ukuqinisekisa ukusatshalaliswa komfaniswano. Ukuqothuka kwesengezo se-cellulose kulawulwa ngokucophelela ukuze kufinyelelwe ukubonwa okufiselekayo, ukulawulwa kokulahlekelwa koketshezi, kanye nezakhiwo zokuhlanza umgodi ngenkathi kugcinwa ukuhambisana koketshezi nokuqina.

Emanzi okugoba okususelwa ku-oyela, izithasiselo ezisuselwa ku-cellulose zingasetshenziswa ngokuhlanganiswa nezinye izindlela ze-rheological kanye nama-ejenti wokulawula alahlekelwe woketshezi ukwenza kahle ukusebenza koketshezi kanye nokuqina komthombo. Ukuhambisana kwezithasiselo ze-cellulose nezinye izingxenye zamanzi kubalulekile ukuqinisekisa ukusebenza kahle koketshezi kanye nokusebenza kwe-Downhole.

Ukucatshangelwa Kwezemvelo:
Izengezo ezisuselwa ku-Cellulose zinikeza izinzuzo eziningana zezemvelo ziqhathaniswa nama-polymers zokwenziwa kanye nezithasiselo zamakhemikhali ezisetshenziswa kakhulu ekudleni kwe-oda. I-biodegradeabilibility yabo kanye nobuthi bezemvelo obuphansi babenza babe ukukhetha okukhangayo kwezindawo zokumba ezibucayi zemvelo kanye nokusebenza kokudla kwangaphandle kwendawo yokushayela umoya lapho imithetho yezemvelo inenkani.

Ngokusebenzisa izengezo ezisuselwa ku-cellulose ekuvuthweni kwe-mad mad, opharetha kunganciphisa umthelela wezemvelo wokusebenza kokushayela, ukunciphisa ubungozi bokungcoliswa kwenhlabathi kanye nezinsizakusebenza zamanzi, kanye nokunciphisa ukulimala okungaba khona endalini yemvelo yasemanzini.

Isiphetho:
I-Cellulose idlala indima ebalulekile ekwakhekeni kodaka lokumba, ifaka isandla ekubonakaleni kwayo, i-fluid-aftential control, ukuqina okushisayo kanye nokuhambisana kwezemvelo. Njenge-polymer yemvelo futhi evuselelekayo, i-cellulose inikeza izinzuzo eziningi ngaphezulu kwezithasiselo zokwenziwa, kufaka phakathi i-biodegradeamability, ubuthi obuphansi, nokusebenza okuhle kakhulu ezimweni ezahlukahlukene zokumba.

Uhla oluhlukahlukene lwezengezo olususelwa ku-cellulose luyatholakala ukuvumela ukumba ugesi onjiniyela ukuvumelanisa ukwakhiwa kodaka ezimweni ezithile ze-Wellbore, izinhloso zokumba kanye nokucatshangelwa kwemvelo. Ngokufaka izici ezihlukile ze-cellulose, opharetha bangathuthukisa ukusebenza kahle kokumba, banciphise ukulimala kokwakha, futhi baqinisekise ukukhishwa okuphephile nokuzinzile kwezinsiza zika-oyela negesi.