Ko te polyanionic cellulose (PAC) he matū whakaputa cellulose wairewa-wai e whakamahia whānuitia ana i roto i te umanga hinu me te hau, inā koa i roto i ngā hanganga wai pakaru. Ko te pakaru waipēhi, e mōhiotia whānuitia ana ko te fracking, he tikanga whakaohooho e whakamahia ana hei whakanui ake i te tangohanga o te hinu me te hau māori mai i ngā puna wai o raro whenua. He maha ngā mahi nui a ngā PAC i roto i te hoahoa me te whakahaere i ngā mahi pakaru waipēhi, e whai wāhi ana ki te whai huatanga, te pumau me te angitu whānui o te tukanga.
1. He kupu whakataki ki te cellulose polyanionic (PAC):
I ahu mai te cellulose polyanionic i te cellulose, he pūmua tūturu e kitea ana i roto i ngā pakitara pūtau tipu. Ko te hanga o te PAC ko te whakarerekētanga matū o te cellulose, ka hua ake he pūmua anionic wairewa-wai. Nā ōna āhuatanga ahurei e pai ai mō ngā momo tono, tae atu ki te mea he wāhanga matua i roto i ngā hanganga wai pakaru.
2. Te mahi a te PAC i roto i te wai pakaru:
Mā te tāpiri i te PAC ki ngā wai pakaru ka taea te whakarerekē i ōna āhuatanga rheological, te whakahaere i te ngaronga wai, me te whakapai ake i te mahi wai whānui. He maha ngā huarahi e whai wāhi ai ōna āhuatanga maha-mahi ki te angitu o te pakaru waipēhi.
2.1 Te whakarerekētanga rheological:
Ka mahi te PAC hei whakarerekētanga rheology, e pā ana ki te matotoru me ngā āhuatanga rere o ngā wai pakaru. He mea nui te matotoru whakahaere mō te tuku pai o te proppant, kia pai ai te kawe me te whakanoho i te proppant ki roto i ngā pakaru i hangaia i roto i te hanganga toka.
2.2 Te whakahaere i te ngaronga wai:
Ko tētahi o ngā wero o te pakaru waipēhi ko te ārai i te nui rawa o te wai kei ngaro ki roto i te hanganga. Ka taea e te PAC te whakahaere pai i te ngaronga o te wai me te hanga i tētahi keke tātari tiaki i runga i te mata pakaru. Ka āwhina tēnei ki te pupuri i te pumau o te pakaru, ka ārai i te piri o te tautoko, ā, ka whakarite kia haere tonu te hua o te puna.
2.3 Te pumau o te pāmahana:
He pumau te PAC i te pāmahana, he mea nui tēnei i roto i ngā mahi pakaru waipēhi, e hiahia ana kia pāngia e te whānuitanga o ngā pāmahana. Ko te kaha o te PAC ki te pupuri i tana mahi i raro i ngā āhuatanga pāmahana rerekē ka whai wāhi ki te pono me te angitu o te tukanga pakaru.
3. Ngā whakatūpato mō te tātai:
Kia angitu ai te whakamahinga o te PAC i roto i ngā wai pakaru, me āta whakaaroaro ki ngā tawhā hanganga. Kei roto i tēnei ko te whiriwhiri i te taumata PAC, te kukū, me te hototahi ki ētahi atu tāpiringa. Me arotau te taunekeneke i waenga i te PAC me ētahi atu wāhanga i roto i te wai pakaru, pērā i ngā hononga whakawhiti me ngā pakaru, kia pai ai te mahi.
4. Ngā whakaaro mō te taiao me ngā ture:
I te whanaketanga tonu o te mōhiotanga taiao me ngā ture pakaru waipēhi, ko te whakamahinga o ngā PAC i roto i ngā wai pakaru he rite tonu ki ngā mahi a te umanga ki te whakawhanake i ngā hanganga e pai ake ana ki te taiao. He wairewa-wai te PAC, ā, ka pirau-koiora, e whakaiti ana i te pānga ki te taiao, ā, e whakaoti ana i ngā raruraru e pā ana ki ngā tāpiringa matū i roto i te pakaru waipēhi.
5. Ngā rangahau take me ngā tono mara:
He maha ngā rangahau take me ngā tono mara e whakaatu ana i te angitu o te whakamahinga o te PAC i roto i te pakaru waipēhi. E whakaatu ana ēnei tauira i ngā whakapainga mahi, te whai huatanga utu me ngā painga taiao o te whakauru i te PAC ki roto i ngā hanganga wai pakaru.
6. Ngā wero me ngā whanaketanga ā muri ake nei:
Ahakoa kua kitea te hiranga o te PAC i roto i ngā wai pakaru, kei te mau tonu ngā wero pēnei i ngā take hototahi ki ētahi wai hanganga me te hiahia kia rangahauhia atu ō rātou pānga ki te taiao mō te wā roa. Tērā pea ka arotahi ngā whanaketanga ā muri ake nei ki te aro atu ki ēnei wero, me te tūhura i ngā whakatakotoranga me ngā hangarau hou hei whakanui ake i te whai huatanga me te pumau o ngā mahi pakaru waipēhi.
7. Whakamutunga:
He mea nui te mahi a te polyanionic cellulose (PAC) i roto i te hanganga o ngā wai pakaru mō ngā mahi pakaru waipēhi i roto i te umanga hinu me te hau. Ka whai wāhi ōna āhuatanga ahurei ki te whakahaere rheology, te aukati i te ngaronga wai me te pumau o te pāmahana, ā, ka pai ake te angitu o te tukanga pakaru. I te whanaketanga tonu o te umanga, ka rite te whakamahinga o te PAC ki ngā whakaaro taiao me ngā whakaritenga ture, ka waiho hei wāhanga matua i roto i te whanaketanga o ngā mahi pakaru waipēhi pumau. Mā ngā mahi rangahau me te whanaketanga tonu ka arahi pea ki ngā whanaketanga atu i roto i ngā hanganga wai pakaru e hangai ana ki te PAC, te aro atu ki ngā wero me te arotau i te mahi i raro i ngā āhuatanga whenua me ngā āhuatanga whakahaere rerekē.
Wā tuku: Hakihea-06-2023