Yini i-PAC ku-dring fluid?

I-PAC, emela i-polyanionic cellulose, isakhi esibalulekile ekudleni uketshezi olusetshenziswa embonini kawoyela negesi. Le nhlanganisela yamakhemikhali idlala indima ebalulekile ekugcinweni kokuqina nokusebenza koketshezi lokumba ngesikhathi senqubo yokumba.

1. Isingeniso sokushayela uketshezi:
Ukushayela uketshezi, owaziwa nangokuthi ukumba udaka, yizinto ezibalulekile ezisetshenziselwa ukumba izinsiza ukwenza lula inqubo yokumba, ukupholisa ukusika kancane, futhi kugcinwe ukuqina komthombo. Lawa manzi asakazwa phansi ngentambo ye-drill futhi alekele i-annulus, enikeza imisebenzi ebalulekile kuyo yonke inqubo yokumba.

2. Ukubaluleka kwe-PAC ku-Drilling Fluids:
I-Polyanionic Cellulose (PAC) iyi-polymer esolulekayo enamanzi etholakala ku-cellulose, i-polymer yemvelo etholakala ezitshalweni. I-PAC isetshenziswa kabanzi ku-drive fluid ngenxa yezakhiwo zayo ezihlukile, ezibandakanya ukuqina okuphezulu okushisayo, izakhiwo ezinhle kakhulu zemboleko, kanye nokuhambisana nezinye izengezo ezisetshenziswa ngokusetshenziswa kwemisebenzi yokumba.

3. Izakhiwo ze-PAC:
I-Solubinity yamanzi: I-PAC iyancibilika kalula emanzini, okwenza kube lula ukufaka uketshezi olususelwa emanzini asuselwa emanzini.
Ukulawulwa kwe-Rheological: I-PAC isiza ukulawula izimbozo zesimbozo soketshezi lokumba, njengokusobala nokulahlekelwa koketshezi.
Ukuqina okushisayo: I-PAC ibonisa ukuqina okuphezulu okushisayo, ukugcina ukusebenza kwayo ngisho nasemazingeni okushisa aphakeme ahlangabezana nakho ekusebenzeni okujulile kokumba.
Ukubekezelela usawoti: I-PAC ibekezelela ukugxila okuphezulu kosawoti, okuzuzisa ezindaweni zokumba nosawoti ophakeme.

4. Imisebenzi ye-PAC ku-Drilling Fluids:
Ukulawulwa kwe-Viscosity: I-PAC isiza ukulawula i-viscosity yoketshezi lokumba, iqinisekisa ukuthi kufanelekile ukugeleza kwezindawo zokugcina izinto zokuhamba kanye nokuqina komthombo.
Ukulawulwa kwe-Filtration: I-PAC yakha ikhekhe lokuhlunga elivikelayo odongeni lwe-Wellbore, kunciphisa ukulahleka koketshezi kanye nokuvimbela ukulimala kokwakheka.
I-Lubrication: I-Pac isebenza njengokuthambisa, ukunciphisa ukungqubuzana phakathi kwentambo yokumba kanye nezindonga ze-Wellbore, ngaleyo ndlela kuthuthukise ukusebenza kahle kokumba.
Ukumiswa kwama-solids: I-AIDS ye-PAC ekumemezeleni ama-solids aqhekekile ku-fluid wokumba, ukuvimbela ukulungisa kwabo nokugcina ukuhlanza umgodi.

I-5. Izicelo ze-PAC ku-Dringing Fluids:
I-PAC ithola izinhlelo zokusebenza ezibanzi ezinhlotsheni ezahlukahlukene zokudla uketshezi, kufaka phakathi udaka olususelwa emanzini (i-WBM), udaka olususelwa ku-OB (OBM), kanye noMuds asuselwa ku-Synthetic (SBM). Isetshenziswa kakhulu ekusebenzeni kokubili kwe-Onshore nase-Offshore kokuqala ukwakheka kwezimo ezahlukahlukene zendawo kanye nezimo zokumba.

I-6. Umthelela we-PAC ekusebenzeni kokumba:
Ukufakwa kwe-PAC ku-Dringing Fluids kunikeza izinzuzo eziningana ezithinta kakhulu ukusebenza kokumba:
Ukuqina okuthuthukile kweHole: I-PAC isiza ukugcina ukuqina kwe-Wellbore ngokuvimbela ukuwa kabusha kokwakha kanye nokuhamba kancane.
Ukusebenza kahle kokumba okuthuthukisiwe: ngokulawula izakhiwo ze-fluid futhi kunciphise ukungezwani, i-PAC inikela ngemisebenzi ebushelelezi yokumba kanye namazinga okungena ngokushesha.
Ukuvikelwa Kwemithi: Ukulawulwa kwe-Filtration okunikezwe yi-PAC kunciphise ukulimala kokwakheka, ukulondolozela ukukhiqiza kwe-reservor kanye nokunweba impilo kahle.

7. Ukucatshangelwa Kwezemvelo Nezokuphepha:
Ngenkathi i-PAC icatshangelwa ngokuvamile iphephile ukuze isetshenziswe kumanzi okumba, kubalulekile ukulandela inqubo efanelekile yokuphatha nezinqubo zokulahla ukuze unciphise ubungozi bemvelo. Ama-opharetha kufanele anamathele kwiziqondiso zokulawula kanye nemikhuba emihle yemboni yokuqinisekisa ukusetshenziswa okunomthwalo we-PAC nezinye izithasiselo ze-fluid.

8. Isiphetho:
I-Polyanionic Cellulose (PAC) isengezo esibalulekile ekudleni uketshezi, edlala indima ebalulekile ekulondolozeni ukusebenza kahle kokumba, ukuqina komthombo kanye nokuvikelwa kokwakheka. Izakhiwo zayo ezihlukile nezinhlelo zokusebenza eziguquguqukayo zenza ukuba kubaluleke kakhulu ekusebenzeni okuhlukahlukene kokumba emhlabeni jikelele. Ngokuqonda ukubaluleka kwe-PAC nemisebenzi yayo ekuvutheni uketshezi, opharetha bangakwenza kahle ukusebenza kokumba futhi baqinisekise ukuphumelela kokuhlola nokukhiqiza.