Polyanionic cellulose (PAC) ndi chinthu chosungunuka m'madzi chomwe chimagwiritsidwa ntchito kwambiri mumakampani opanga mafuta ndi gasi, makamaka popanga ma fracturing fluid formulations. Hydraulic fracturing, yomwe imadziwika kuti fracking, ndi njira yolimbikitsira yomwe imagwiritsidwa ntchito kuwonjezera kutulutsa mafuta ndi gasi wachilengedwe kuchokera m'malo osungiramo pansi pa nthaka. Ma PAC amachita ntchito zosiyanasiyana zofunika pakupanga ndi kuchita ntchito za hydraulic fracturing, zomwe zimathandiza kuti ntchitoyi ikhale yogwira mtima, yokhazikika komanso yopambana.
1. Chiyambi cha polyanionic cellulose (PAC):
Polyanionic cellulose imachokera ku cellulose, polima wachilengedwe womwe umapezeka m'makoma a maselo a zomera. Kupanga kwa PAC kumaphatikizapo kusintha kwa mankhwala a cellulose, zomwe zimapangitsa kuti pakhale polima ya anionic yosungunuka m'madzi. Makhalidwe ake apadera amawapangitsa kukhala oyenera kugwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo ngati chinthu chofunikira kwambiri pakuphwanya madzi.
2. Udindo wa PAC pakusweka kwa madzi m'thupi:
Kuwonjezera PAC ku madzi ophwanyika kungasinthe makhalidwe ake a rheological, kuwongolera kutayika kwa madzi, komanso kukonza magwiridwe antchito a madzi onse. Makhalidwe ake ambiri amathandizira kuti hydraulic fracturing ipambane m'njira zambiri.
2.1 Kusintha kwa rheological:
PAC imagwira ntchito ngati chosinthira rheology, zomwe zimakhudza kukhuthala ndi kayendedwe ka madzi ophwanyika. Kukhuthala kolamulidwa ndikofunikira kwambiri kuti proppant iperekedwe bwino, kuonetsetsa kuti proppant yanyamulidwa bwino ndikuyikidwa mkati mwa ming'alu yomwe idapangidwa pakupanga miyala.
2.2 Kuwongolera kutayika kwa madzi:
Chimodzi mwa zovuta za hydraulic fracturing ndikuletsa madzi ambiri kuti asatayike mu kapangidwe kake. PAC imatha kuwongolera bwino kutayika kwa madzi ndikupanga keke yoteteza pamwamba pa fracture. Izi zimathandiza kusunga kulimba kwa fracture, kuletsa proppant kulowa mkati mwake ndikuwonetsetsa kuti chitsime chikugwira ntchito bwino.
2.3 Kukhazikika kwa kutentha:
PAC ndi yokhazikika pa kutentha, chinthu chofunikira kwambiri pa ntchito zophwanyika kwa madzi, zomwe nthawi zambiri zimafuna kukhudzidwa ndi kutentha kosiyanasiyana. Kuthekera kwa PAC kusunga magwiridwe antchito ake pansi pa kutentha kosiyanasiyana kumathandizira kuti njira yophwanyika idali yodalirika komanso yopambana.
3. Malangizo Opewera Fomula:
Kugwiritsa ntchito bwino PAC mu madzi ophwanyika kumafuna kuganizira mosamala magawo a kapangidwe kake. Izi zikuphatikizapo kusankha mtundu wa PAC, kuchuluka kwake, komanso kugwirizana kwake ndi zowonjezera zina. Kugwirizana pakati pa PAC ndi zigawo zina mu madzi ophwanyika, monga ma cross-linkers ndi ma breakers, kuyenera kukonzedwa bwino kuti zigwire bwino ntchito.
4. Zoganizira za chilengedwe ndi malamulo:
Pamene chidziwitso cha chilengedwe ndi malamulo okhudza kusweka kwa madzi a hydraulic akupitilizabe kusintha, kugwiritsa ntchito ma PAC mumadzi a fracturing kukugwirizana ndi kuyesetsa kwa makampani kupanga mitundu yosamalira chilengedwe. PAC imasungunuka m'madzi ndipo imatha kuwola, kuchepetsa kuwononga chilengedwe ndikuthetsa mavuto okhudzana ndi zowonjezera za mankhwala mu kusweka kwa madzi a hydraulic.
5. Maphunziro a milandu ndi ntchito zomwe zimagwiritsidwa ntchito m'munda:
Kafukufuku wosiyanasiyana ndi ntchito zosiyanasiyana zikusonyeza kuti PAC yagwiritsidwa ntchito bwino pokonza ma hydraulic fracturing. Zitsanzo izi zikuwonetsa kusintha kwa magwiridwe antchito, kugwiritsa ntchito bwino ndalama, komanso ubwino wokhudza chilengedwe wophatikiza PAC mu ma fracturing fluid formulations.
6. Mavuto ndi zomwe zidzachitike mtsogolo:
Ngakhale kuti PAC yatsimikizira kuti ndi gawo lofunika kwambiri pakupanga madzi ophwanyika, mavuto akadalipo monga mavuto okhudzana ndi madzi ena opangidwa komanso kufunika kofufuza zambiri za zotsatira zake zachilengedwe kwa nthawi yayitali. Zomwe zikuchitika mtsogolo zitha kuyang'ana kwambiri pakuthana ndi mavutowa, komanso kufufuza njira zatsopano ndi ukadaulo kuti ziwonjezere magwiridwe antchito ndi kukhazikika kwa ntchito zopanga madzi ophwanyika.
7. Mapeto:
Polyanionic cellulose (PAC) imagwira ntchito yofunika kwambiri popanga madzi ophwanyika pogwiritsa ntchito ma hydraulic fracturing fluid mumakampani opanga mafuta ndi gasi. Makhalidwe ake apadera amathandizira kuwongolera rheology, kupewa kutaya madzi komanso kukhazikika kwa kutentha, zomwe zimapangitsa kuti njira yophwanyika ipambane. Pamene makampaniwa akupitilizabe kusintha, kugwiritsa ntchito PAC kumagwirizana ndi zomwe zimaganiziridwa pazachilengedwe komanso zofunikira pamalamulo, zomwe zimapangitsa kuti ikhale gawo lofunikira pakupanga njira zokhazikika zophwanyika pogwiritsa ntchito ma hydraulic fracturing. Kafukufuku wopitilira ndi kuyesetsa kwachitukuko kungapangitse kupita patsogolo kwa mapangidwe amadzimadzi ophwanyika pogwiritsa ntchito PAC, kuthana ndi mavuto ndikukwaniritsa magwiridwe antchito pansi pa mikhalidwe yosiyanasiyana ya geological ndi ntchito.
Nthawi yotumizira: Disembala-06-2023