Umkhakha wanamuhla wamandla uncike kunethiwekhi eyinkimbinkimbi yobuchwepheshe, izinto, kanye nolwazi ukuze kukhiqizwe ama-hydrocarbon ngempumelelo nangokuphepha. Phakathi kwezinto ezibaluleke kakhulu kodwa ezivame ukunganakwa kuleli luhlu kukhona isihlabathi se-frac nama-ejenti asekelayo—izinto ezibamba ngempela iziqhekeza emadwaleni ajulile angaphansi komhlaba, okuvumela uwoyela negesi yemvelo ukuthi igeleze ziye emgodini womthombo. Ngaphandle kwalezi zinto ezikhethekile ze-proppants, i-hydraulic fracturing ngeke iphumelele kakhulu, futhi ukukhiqizwa kwamandla omhlaba kungabhekana nezingqinamba ezinkulu. Ukuqonda indima, izinhlobo, kanye nezimo zemakethe zesihlabathi se-frac nama-ejenti asekelayo kubalulekile kunoma ubani ohilelekile emandleni nezinsiza, kungaba njengomsebenzisi, umphakeli, umtshali-zimali, noma umenzi wezinqubomgomo. Lesi sihloko sihlinzeka ngokubuka konke okubanzi ngalezi zinto, ukubaluleka kwazo ekukhiqizweni kwama-hydrocarbon, izitayela zamanje, izinto ezithinta imvelo, kanye nombono wesikhathi esizayo walo mkhakha. Abafundi abafuna isiqondiso sobuchwepheshe ekutholeni noma ekuthuthukiseni amasu e-proppant bangazuza ekubonisaneni okukhethekile kweseshini yamandla nabakhiqizi abanolwazi nochwepheshe bezobuchwepheshe. Imininingwane eyabelwe lapha isuselwa kudatha yomkhakha, intuthuko yemithetho, kanye namakhono aqinisekisiwe ezinkampani ezihamba phambili njenge-Hebei Kaiyuan Oil Proppant Co., Ltd., umkhiqizi owaziwa nge-proppants esezingeni eliphezulu esekela imisebenzi ephumelelayo yokwephula umthetho emhlabeni wonke.

I-frac sand nama-agent okwesekayo, okubizwa ngokuthi ama-proppants, yizinto ezisetshenziswa emanzini aphukayo ukuze kuvulwe imifantu eyenziwe emadwaleni angaphansi komhlaba, ngaleyo ndlela kuvunyelwe ukuthi ama-hydrocarbons ageleke ngokukhululeka aye phezulu. Umkhakha wezinguquko usebenzise lezi zinto iminyaka eminingi, kodwa ukubaluleka kwazo kuye kwanda kakhulu ngokwanda kokukhiqizwa kukaphethiloli negesi okungajwayelekile, ikakhulukazi ezindaweni ezinama-shale eNyakatho Melika, China, nezinye izifunda. I-frac sand, etholakala kusuka ku-silica sandstone ephezulu kakhulu, iyona proppant esetshenziswa kakhulu ngenxa yokuba khona kwayo, ukonga izindleko, kanye nezakhiwo ezinhle zemishini ngaphansi kwezimo ezimaphakathi. Ama-agent okwesekayo, ngakolunye uhlangothi, ahlanganisa isigaba esibanzi esihlanganisa ama-ceramic proppants, izihlabathi ezinama-resin, nezinye izinto eziyinsizakalo eziklanyelwe amandla aphezulu noma izicelo ezikhethekile. Ukukhethwa kohlobo olufanele lwe-proppant kuthinta ngqo ukudluliswa kwemifantu, ukukhiqizwa komthombo, kanye nezomnotho jikelele wephrojekthi yokubhola, okwenza kube isinqumo esibalulekile kubasebenzisi. Izinkampani ezinikeza uhla olubanzi lwemikhiqizo, njengezibalwe ekhasini le-PRODUCTS le-Hebei Kaiyuan, zivumela amaklayenti ukuthi afanise imininingwane ye-proppant nezici zesitoreji ukuze kutholwe ukusebenza kahle.

Ubuhlobo phakathi kwekhwalithi ye-frac sand nokusebenza kahle kokukhiqizwa akunakuchazwa ngokweqile. Ama-proppant asezingeni eliphezulu agcina ukwakheka kwawo ngaphansi kwengcindezi enkulu, ayamelana nokuchotshozwa nokukhiqizwa kwezinto ezincane, futhi ahlinzeka ngokungena komoya okungaguquki kuyo yonke impilo yomthombo. Emkhakheni obanzi wezimboni zamandla, ukutholakala kanye nezindleko ze-frac sand kuvele njengezinto ezibalulekile ezithinta izabelomali zokumba kanye nezibikezelo zokukhiqiza. Ngaphezu kwalokho, izinselelo zokuhambisa izigidi zamathani esihlabathi kusuka ezimayini ziye ezindaweni zemithombo ziye zavuselela ubuhlakani ekutholeni isihlabathi sendawo, ezimayini ezisendaweni, kanye nezixhumanisi zokuhlinzekwa ezihlakazekile. Ukuqonda lezi zimo kubalulekile kubantu abathintekayo abafuna ukuzulazula emkhakheni wamandla nezinsiza ngempumelelo. Lesi sethulo sibeka isiteji sokuhlola okujulile ukuthi i-frac sand nama-agent asekelayo asebenza kanjani, kungani ibalulekile, nokuthi ikusasa libambeleleni kanjani kulesi sigaba esibalulekile sezimboni zikawoyela negesi. Kulabo abafuna ukuhlola uhla olugcwele lwezixazululo ze-proppant ezitholakalayo, ukuvakashela indawo ekhethekileIMIKHIHWAYO ikhasi linikeza indawo yokuqala ewusizo yokuqonda izincazelo nezinketho zokwenza ngokwezifiso.

I-Hydraulic fracturing, noma i-fracking, iyindlela yokuvuselela imithombo evame ukusebenzisa ukujova ingxube yoketshezi enomfutho—ngokuvamile amanzi, isihlabathi, nezinye izithako zamakhemikhali—emgodini ukuze kwakheke imifantu esikhungweni samatshe esihloselwe. Uma imifantu isakhiwa, umfutho woketshezi uyancishiswa, bese izinhlayiya ze-proppant zihlala endaweni, zivule imifantu ngokumelana nomfutho wokucindezela wedwala elizungezile. Lokhu kwakha indlela yokudlulisela uwoyela negesi yemvelo ukuba isuke endaweni yokugcina iye emgodini, kwandise kakhulu izinga lokubuyisa uma kuqhathaniswa nemithombo engavuselwanga. Ukusebenza kahle kwale nqubo kuncike ezingeni nezici ze-proppant esetshenzisiwe; isihlabathi esisezingeni eliphansi esichotshozwa ngaphansi komfutho singakha izinhlayiya ezinhle ezivala inethiwekhi yemifantu, kunciphise ukungena futhi ekugcineni kulimaze ukukhiqiza. Ngakho-ke, i-frac sand ayiyona nje into yokugcwalisa kodwa iyisici esiklanywe ngokunemba esithinta ngqo ukusebenza kwezomnotho kwamaphrojekthi okukhipha ama-hydrocarbon kulo lonke umkhakha wezinguquko.

Ukubaluleka kwezinguquko kwe-frac sand kubonakala kakhulu ekuthuthukisweni kwezinsiza ezingajwayelekile ezifana negesi ye-shale, uwoyela oqinile, kanye ne-methane ye-coalbed. Lezi zakhiwo ngokuvamile zinokungena okungajwayelekile okuphansi kakhulu, okusho ukuthi ngaphandle kokubekwa kahle kwe-proppant, ukukhiqizwa kwezentengiselwano akunakwenzeka. Abasebenzi ezindaweni ezinkulu ze-shale—kuhlanganise nePermian Basin, Marcellus Shale, kanye ne-Eagle Ford—basebenzisa amathani ayizigidi ze-frac sand minyaka yonke, okwenza kube yizindleko ezinkulu kakhulu ngemuva kokubhola kanye nokugcwalisa uketshezi. Ukuthambekela ekulayisheni okwengeziwe kwe-proppant nge-well, ngezinye izikhathi kudlula amakhilogremu ayizigidi ezingu-30, kubonisa ukuqashelwa komkhakha ukuthi isihlabathi esiningi sihambisana nokukhuphuka kwe-fracture conductivity kanye nokubuyiselwa okuphezulu. Ngaphezu kwalokho, ukuthuthukiswa kwezimayini zesihlabathi zasendaweni eduze nezindawo zokubhola kunciphise izindleko zokuhamba futhi kwavumela ukulethwa okusheshayo, okwengeza ukuthuthukisa umnotho wephrojekthi. Ezinkampanini ezifuna ukwenza kahle isu lazo le-proppant, uchwephesheKwenzelweizixazululo zingasiza ekulungiseni ukusatshalaliswa kosayizi wokusanhlamvu, ukujikeleza, namandla ukuze kuhambisane nezimo ezithile zesitoreji, kuqinisekiswe inzuzo enkulu yokutshalwa kwezimali.

Indima yesihlabathi se-frac idlulela ngalé kokusekelwa okumane nje komshini; izakhiwo zayo ezibonakalayo nezamakhemikhali zithonya konke kusukela ekuhambisaneni kwezinsizakalo kuya ekuzinzeni komhlaba isikhathi eside. Ngokwesibonelo, isihlabathi se-silica esine-sphericity ephezulu nokuthungwa kwendawo okubushelelayo kunciphisa ukungqubuzana ngesikhathi sokumpompa, okuvumela i-proppant ukuthi ifakwe ujule kwinethiwekhi yokuqhekeka. Ukumelana nokugqwala kwe-acid ne-brine kuyinto ebaluleke kakhulu, ikakhulukazi emachibukweni anezinsizakalo zomhlaba ezinolaka. Amazinga emboni afana ne-ISO 13503-2 ahlinzeka ngezinqubo zokuhlola ukumelana nokugqashuka, ukufiphala, nokuncibilika kwe-acid, kusiza abasebenzisi ukuthi bahlole ikhwalithi ye-proppant ngaphambi kokuthenga. Abakhiqizi abahamba phambili batshala imali kakhulu ekulawuleni ikhwalithi nasezifundweni ukuqinisekisa ukuthi imikhiqizo yabo ihlangabezana noma idlula lawo mazinga njalo. I-Hebei Kaiyuan Oil Proppant Co., Ltd., ngokwesibonelo, isebenzisa imigqa yokukhiqiza ezenzakalelayo kanye namalabhorethri okuqeqesha aqinile ukuletha ama-proppants athembekile ezicelo ezidingayo. YaboR&D imizamo igxile ekuthuthukiseni izindlela ezintsha ezithuthukisa ukudlulisa ugesi ngenkathi kuncishiswa umthelela emvelweni, okuhambisana nokugqugquzelwa komkhakha ngokuqhubeka nokukhipha izinto ngendlela esimeme.

Abaqeqeshi bokufakelwa kwamafutha (hydraulic fracturing) bahlukaniswa ngokubanzi ezinhloboni ezintathu eziyinhloko: isihlabathi esiyisilicca semvelo, izinto zokufakelwa eziyicramic, nezinto zokufakelwa ezigoqwe nge-resin. Uhlobo ngalunye lunikeza izinzuzo ezihlukile nemikhawulo, futhi ukukhetha kuncike ezintweni ezifana nengcindezi yokuvala, izinga lokushisa le-reservoir, ukwakheka kwamakhemikhali oketshezi, kanye nezinto ezithinta umnotho. Isihlabathi esiyisilicca semvelo, esivame ukutholakala emadiphozini aphezulu esihlabathi samatshe, siyinto yokufakelwa esetshenziswa kakhulu ngenxa yezindleko zayo eziphansi, ukutholakala kwayo kalula, nokusebenza kwayo okwanele ezindaweni ezinengcindezi ephansi kuya ephakathi (ngokuvamile kufika ku-6,000 psi). Amagranule esihlabathi ahlukaniswa ngosayizi—evame ukuba ngu-20/40, 30/50, kanye no-40/70 mesh—ukuze ahambisane nobubanzi bokuqhekeka kanye ne-conductivity oyifunayo. Emifuleni eminingi ezindaweni eziqhelekile kanye nalezo ezingekho ngaphansi kwengcindezi ephansi, isihlabathi esiyisilicca sinikeza ibhalansi enhle yokusebenza nokubiza, okwenza kube ukukhetha okuzenzakalelayo ezingxenyeni eziningi zokufakelwa emhlabeni jikelele.

Ama-proppant e-ceramic, okubandakanya i-sintered bauxite, i-ceramics esekelwe ku-kaolin, kanye ne-ceramics elula, enziwa ngezicelo ezinamandla lapho izingcindezi zokuvala zidlula amandla esihlabathi semvelo. La ma-proppant enziwe ngokukhethekile anikeza ukumelana nokugqashuka okungcono kakhulu, ukufana, kanye nokuqhuba ngaphansi kwezimo ezinzima phansi, ngokuvamile kudlula i-10,000 psi. Inqubo yokukhiqiza ihlanganisa i-sintering esezingeni lokushisa eliphezulu yezinto zokusetshenziswa ukuze kwakhiwe izinhlayiya eziqinile, ezijikelezayo ezinezinhlobonhlobo zosayizi olulawulwayo kanye ne-porosity. Yize ama-proppant e-ceramic ebiza kakhulu kunesihlabathi, ukusebenza kwawo okuthuthukisiwe emachibukweni ajulile, anengcindezi ephezulu kungase kubeke izindleko ezingeziwe ngokuthuthukisa umkhiqizo womthombo kanye nokuphila isikhathi eside. Ama-proppant ahlanganiswe nge-resin amele isigaba esihlanganisiwe, lapho isihlabathi semvelo noma izinhlayiya ze-ceramic zihlanganiswa ungqimba oluncane lwe-resin ye-thermosetting. Ukuhlanganiswa kwe-resin kusebenza izinjongo eziningi: kuthuthukisa ukubopha okusanhlamvu-kuya-okusanhlamvu ngaphansi kwengcindezi, kunciphisa ukuthuthela kwezinhlamvu ezincane, futhi kungahlinzeka ngezici zokuqina ezibambezelekile ezisiza ukuvimbela ukugeleza kwe-proppant ngesikhathi sokukhiqiza. La ma-proppant ahlanganisiwe abaluleke kakhulu emithonjeni lapho ukugeleza kwe-proppant kuyinto ekhathazayo, njengemithombo yegesi enesivinini esikhulu noma imithombo enezikhathi eziningi zokuvala.

Ukukhetha i-ejenti yokusekela efanele kudinga ukuqonda okuphelele kwe-geomechanics yokugcina, umklamo wokugcwalisa, kanye nemikhawulo yezenotho. Abasebenzisi bavame ukwenza izivivinyo zase-laboratory, okuhlanganisa namaseli okudlulisa ugesi kanye nezivivinyo zokugqobhoza, ukuze kulinganiswe izimo ezansi nomgodi futhi kuqhathaniswe ukusebenza kwe-proppant kuwo wonke imikhiqizo ehlukene. Isoftware ephelele yokumodela ingabikezela i-fracture geometry kanye nokusatshalaliswa kwe-proppant, isiza abanjiniyela ukuthi banqume uhlobo olufanele, usayizi, kanye nokugxilisa okufanele isigaba ngasinye. Abakhiqizi abaningi banikeza amafomula enziwe ngokwezifiso ukuze axazulule izinselelo ezithile, njengokuzinza kwezinga lokushisa eliphezulu, ukuthuthwa okungaphansi kwesisindo, noma ukuhambisana okuthuthukisiwe kwamakhemikhali. I-Hebei Kaiyuan Oil Proppant Co., Ltd., isibonelo, ihlinzeka nge-diverseIMIKHIQIZO umkhiqizo ohlinzeka ngezinketho zesihlabathi, zesitina, nezokugcotshwa ngomgqumo, okuvumela amaklayenti ukuthi akhethe isixazululo esisebenza kahle kakhulu sezimo zawo ezindaweni zokugcina. Ngokubambisana nomkhiqizi ohlinzeka ngosizo lobuchwepheshe nokwenza ngokwezifiso, abaqhubi bangathuthukisa kakhulu ukusebenza kahle nokwethembeka kweziphathimandla zabo zokuhlukumeza.

Imakethe yesihlabathi se-frac ibone izinguquko ezinkulu emashumini eminyaka adlule, ezinganiselwa ukwanda okusheshayo kokukhiqizwa kukashalele e-U.S., izinguquko emisebenzini yokubhola, kanye nemikhuba yokuqedela eguqukayo. Ngemuva kokuchuma maphakathi nawo-2010, lapho isidingo sesihlabathi se-frac sakhula saya ku-100 billion pounds minyaka yonke, imakethe yabhekana nokwehla okukhulu ngesikhathi sokuwa kwentengo kawoyela ka-2020 kanye ne-COVID-19 pandemic. Kodwa-ke, ukululama okwalandela kuye kwaboniswa ngendlela enesiyalo kakhudlwana yokusebenzisa imali, lapho abasebenzisi begxile ekuthuthukiseni ukusebenza kahle nasekwenzeni izindleko ngaphansi kunokukhula kwevolumu nje. Enye yezinto ezivelele kakhulu kube ukwanda kokumbiwa kwesihlabathi esingaphakathi kwe-basin, lapho izindawo zasendaweni eziseduze nezindawo ezinkulu zikashalele zithuthukiswa ukuze zithathe indawo yesihlabathi esithwalwa ezindaweni ezikude njengesifunda saseWisconsin/Minnesota. Leli shintsho liye lenze izindleko zokuthutha zancipha kakhulu, lenze ukungcola kwekhabhoni kwezinto zokuthutha isihlabathi kunciphe, futhi lenze ukuphepha kokuhlinzekwa kwabasebenzisi kukhule. Umphumela kube yinguvu yokushintsha kwezinto ezithwalwayo, lapho izimayini zasendaweni manje sezibamba isabelo esibalulekile sokukhiqizwa okuphelele kwesihlabathi se-frac ezindaweni ezibalulekile njengePermian neHaynesville.

Isidingo sesihlabathi se-frac sixhumene ngokwemvelo namanani kawoyela negesi yemvelo, izibalo zamarigi, kanye nomsebenzi wokuqedela imithombo. Lapho amanani ezimpahla eqinile, abaqhubi bavame ukumba imithombo eyengeziwe futhi basebenzise imithwalo ephezulu ye-proppant, okwandisa ukusetshenziswa kwesihlabathi. Ngokuphambene, ukwehla kwamanani kuholela ekwehleni komsebenzi kanye nengcindezi ehla ezintengweni zesihlabathi. Emashumini eminyaka adlule, umkhuba ubelokhu uya emibhalweni emide, izigaba eziphakeme, kanye nokwanda kwe-proppant intensity ngefidi yomugqa, okuye kwandisa isidingo sonke ngisho nalapho izibalo zamarigi zihlala zingashintshi kakhulu. Ngokwesibonelo, i-proppant ejwayelekile nge-well ePermian Basin ikhuphuke kusuka cishe kumaphawundi ayizigidi ezingu-15 ngo-2015 yaya kumaphawundi ayizigidi ezingu-25 ngo-2024, okubonisa ukholo lomkhakha lokuthi isihlabathi esiningi sithuthukisa ukubuyiselwa. Lokhu kwanda okuyisisekelo kumthwalo we-proppant kuye kwaba nomkhawulo wesidingo ngisho nasezikhathini zomsebenzi wokubhola ophakathi. Ngokombono wamandla nezinsiza, imakethe yesihlabathi se-frac isebenza njengesibonakaliso sokutshalwa kwezimali okungaphezulu kanye nentuthuko yezobuchwepheshe ekuhlakazeni ngamandla, okwenza kube isikhombisi esibalulekile kubatshalizimali nabahlaziyi abalandela impilo yomkhakha wamandla.

Izinto ezithinta uhlangothi lokuhlinzekwa nazo seziguqukile, ngokuhlanganiswa kwezinkampani zezimayini, ukwanda kokusetshenziswa kobuchwepheshe ezindaweni zokucubungula, kanye nokutholakala kwezindawo ezintsha zokumba emachibeni asakhula. Imboni ye-frac sand isihlangene kakhulu, lapho izinkampani ezimbalwa ezinkulu zilawula iningi lamandla nezindawo zokusabalalisa. Lokhu kuhlangana kuholele ekubeni amanani azinzile futhi kuthuthukise ukwethembeka kumakhasimende, kodwa futhi kunciphise inani labahlinzeki abazimele abatholakala ngokuthenga okungazelelwe. Ngaleso sikhathi, ubuchwepheshe obusha kwezokuthutha i-proppant, njengokusetshenziswa kwezitimela ezikhethekile, amaloli anomoya, nezindawo zokudlulisa izimpahla, kuthuthukise ukusebenza kahle kwezinto zokuhambisa futhi kunciphise izindleko zokuhambisa isihlabathi kusuka emayini kuya endaweni yomthombo. Kubasebenzisi abafuna ukuqinisekisa ukuhlinzekwa okuthembekile ngamanani ancintisanayo, ukwakha ubudlelwano besikhathi eside nabakhiqizi abasungulwe kahle kubaluleke kakhulu. I-Hebei Kaiyuan Oil Proppant Co., Ltd., nethimba layo elinolwazi kanye nezinhlelo zayo zekhwalithi ezifakazelwe, ibonisa uhlobo lomlingani ongahlinzeka ngokuhlinzekwa okungaguquki kanye nokwesekwa kwezobuchwepheshe emaphrojekthi amaningi. Ukuzibophezela kwenkampani ekuqhakazeleni kuchazwe ngokuningiliziwe ku-MAYELANA NATHIikhasi, eligqamisa amakhono abo okukhiqiza nezinqubo zabo zokulawula ikhwalithi.

Ukuqothulwa, ukucubungulwa, nokusetshenziswa kwesihlabathi esiyingxenye (frac sand) kuveza izinkinga eziningana zemvelo eziye zagqama kubalawuli, amaqembu ezemvelo, nemiphakathi yasendaweni. Imisebenzi yokumba isihlabathi se-silica ihilela ukuphazamiseka komhlaba, ukusetshenziswa kwamanzi, ukukhiqizwa kotshani, kanye nemiphumela engaba khona ezingeni lamanzi angaphansi komhlaba. Ezingxenyeni ezinokugxilwa okukhulu kwezimayini zesihlabathi, njengase ntshonalanga yeWisconsin nezingxenye zaseTexas, izinkinga ezihlobene nethrafikhi yamaloli, umsindo, kanye nekhwalithi yomoya ziye zavela imithetho yendawo nezinselelo zokuthola izimvume ezimayini ezintsha. Imboni iphendule ngokwamukela izindlela ezingcono kakhulu zokuphatha, okubandakanya ukucubungulwa okumanzi ukunciphisa utshani, izinhlelo zokubuyiselwa komhlaba ezimbiwe, kanye nokuqapha umoya ngesikhathi sangempela ukuqinisekisa ukuthobela izindinganiso zokukhishwa. Ngaphezu kwalokho, ukuguqukela ekumbeni ngaphakathi kwesifunda kuye kunciphise ibanga isihlabathi okumele sihambe ngalo, ngaleyo ndlela kunciphisa ukukhishwa kukadizili okuhlobene nokuthuthwa kwamaloli nezinqola. Lezi zithuthukisi, yize zibalulekile, kudingeka ziqhubeke zithuthukiswa ukuze kugcinwe ilayisensi yomphakathi futhi kuhlangatshezwane nezilindelo zemvelo eziba nzima kakhulu.

Ngokombono womthetho, ukumbiwa kwamatshe okokugcoba (frac sand) kanye nemisebenzi yokugcoba ngamanzi (hydraulic fracturing) kuthinteka uhlelo oluyinkimbinkimbi lwemigomo kahulumeni, yombuso, kanye neyendawo ehambisana nekhwalithi yomoya, ukusetshenziswa kwamanzi, ukulahlwa kukadoti, kanye nokuphepha emsebenzini. E-United States, i-Environmental Protection Agency (EPA) ibeka izindinganiso ngaphansi kwe-Clean Air Act kanye ne-Clean Water Act, kanti izinhlaka zombuso ezifana ne-Texas Railroad Commission kanye ne-Pennsylvania Department of Environmental Protection zisebenzisa izinhlelo zokunikeza izimvume nokuphoqelela. Ukuthobela le migomo kwengeza izindleko kanye nobunzima emisebenzini kodwa futhi kuholela ekusungulweni kwezobuchwepheshe nezinqubo ezihlanzekile. Umqondo wamandla avuselelekayo kanye nentuthuko esimeme uthinta kakhulu imvelo yenqubomgomo yokukhipha uphethiloli, kuhulumeni ekhuthaza ukwamukelwa kwezindlela ezisebenzisa ikhabhoni encane kanye nokuba sobala kakhulu ezindaweni zokuhlinzekwa. Ngokwesibonelo, ezinye izindawo manje zidinga ukuhlolwa kwempilo yonke yezinto zokugcoba (proppant materials), okuhlanganisa ukusetshenziswa kwamandla, ukukhishwa kwamagesi abangela umphumela wokushisa komhlaba, kanye nomkhondo wamanzi, njengengxenye yenqubo yokunikeza izimvume. Izinkampani ezamukela ngaphambili izilinganiso zentuthuko esimeme futhi zitshala ezindleleni zokukhiqiza ezihlanzekile zibekwe kahle ukubhekana nezinselelo zomthetho nokugcina ukufinyelela emakethe.

Ukudlalisana phakathi kokukhiqizwa kwesihlabathi se-frac nemigomo ejwayelekile yezemvelo kuyisihloko esingaqhubeki. Abagxeki bathi noma yikuphi ukwanda kokukhiqizwa kwama-hydrocarbon kuphambana nemizamo yokuguqukela ezindleleni ezihlanzekile zamandla, kanti abasekeli bagcizelela ukuthi igesi yemvelo, enikwe amandla yi-hydraulic fracturing, isishintshe amalahle ekukhiqizeni amandla futhi yaba nomthelela ekwehliseni ukukhishwa kwe-carbon ezindaweni eziningi. Iqiniso linemininingwane eyengeziwe: umkhakha wamandla kufanele ubalele ukuphepha kwamandla, intuthuko yezomnotho, nokugcinwa kwezemvelo ngendlela ehlangabezana nezidingo zabantu abanda kakhulu emhlabeni. Isihlabathi se-frac nabasizi bokusekela, njengoba benza ukutholwa kahle kwama-hydrocarbon, badlala indima kuleli bhalansi ngokukhulisa umkhiqizo kusuka emithonjeni ekhona nokunciphisa isidingo sokubhola okwengeziwe. Sibheke phambili, ukuhlanganiswa kwezimiselo zomnotho oyindilinga—njengokugaywa kabusha kwesihlabathi se-frac, ukusebenzisa izinto ezisekelwe ezintweni eziphilayo, nokunciphisa udoti—kungaqhubeka nokuhlanganisa ukukhiqizwa kwe-proppant nemigomo yamandla avuselelekayo nentuthuko esimeme. Ukuze uthole ukuqonda okujulile ukuthi umkhiqizi ohamba phambili aphatha kanjani ukukhiqizwa ngokuzibophezela,IKHAYAikhasi le-Hebei Kaiyuan linikeza isifinyezo sokuzibophezela kwabo ekuphathweni kwekhwalithi nezemvelo.

Ikusasa le-frac sand kanye nabaxhasi bemboni yamandla izobunjwa yizinto eziningana ezihlangene, okubandakanya ukuthuthukiswa kobuchwepheshe bokubhola, ukukhula kwamandla avuselelekayo, kanye nomzamo womhlaba wonke wokunciphisa ukukhishwa kwekhabhoni. Ngenkathi abanye abahlaziyi beqagula ukuthi isidingo samafutha ezinto ezivuthayo sizofinyelela esiqongweni emashumini eminyaka azayo, ukubheka kwesikhathi esiseduze nesiphakathi kwezinguquko zegesi lemvelo kuhlala kuqinile, kuqhutshwa yindima yalo njengamafutha aphansi kakhulu okwekhabhoni kanye nokwanda kwamandla okuthumela igesi yemvelo eyenziwe ngomoya (LNG). Lesi sidingo esiqhubekayo sokukhiqizwa kukagesi sizoqhubeka sifune i-hydraulic fracturing, futhi ngenxa yalokho, ukuhlinzekwa okuqhubekayo kwezinto eziphakeme kakhulu. Ngaphezu kwalokho, intuthuko yezobuchwepheshe ekuqedelweni kwemigodi, njengokuqapha okungokoqobo kwe-fracture kanye namashejuli okumpompa aguquguqukayo, kungenzeka ukuthi kwandise ukusebenza kahle kokubekwa kwe-proppant, kunganciphisa inani lezinto ezidingekayo emgodini ngamunye ngenkathi kuthuthukiswa amazinga okubuyisa. Imboni iphinde ihlole izinto ezihlukile ze-proppant, okubandakanya ama-ceramics alula kakhulu, izinto ezibunayo ezibunayo, ngisho nezindlela zokwehlukanisa ezingenawo isihlabathi, nakuba kungekho noyedwa okwamanje osondela ekubeni nenzuzo kanye nokwethembeka kwe-frac sand yakudala ngesikali.

Ubuhlobo phakathi kwemboni ye-frac sand nokuguqukela okubanzi ezinhlotsheni zezinsiza zamandla avuselelekayo bunemibono eminingi. Ngakolunye uhlangothi, ukukhula kwamandla elanga, umoya, nokugcinwa kwamabhethri kunciphisa isabelo sezinto ezivutha njengezinto ezivela emafutheni emoyeni esikhathini eside, okungase kunciphise isidingo se-frac sand. Ngakolunye uhlangothi, igesi yemvelo ivame ukusetshenziswa njengokwesekela kwamandla avuselelekayo angahlali njalo, futhi ukukhiqizwa kwengqalasizinda yamandla avuselelekayo—njengamafreyimu amaphaneli elanga, imibhoshongo yamandla omoya, nezindawo zokugcina amabhethri—kuyadingeka ngokwayo amafutha amaningi asuselwa emafutheni ezilwane, ama-lubricant, kanye nezinto zokuhambisa. Ngaphezu kwalokho, amanye amaphrojekthi amandla e-geothermal, okuyisimo samandla avuselelekayo kanye nentuthuko esimeme, asebenzisa izindlela zokuhlukumeza okuyimvula ezifana nalezo ezikwimboni kawoyela negesi, kudala imakethe entsha engaba khona yama-proppants. Ukumba nokucubungula i-frac sand nakho kudala umsebenzi wezomnotho ezindaweni zasemakhaya, kunikeze imisebenzi kanye nemali engenayo yentela engasekele izimali zendawo kumaphrojekthi amandla avuselelekayo. Kule ndawo eyinkimbinkimbi, imboni ye-frac sand cishe izoqhubeka njengesici esibalulekile emkhakheni wamandla okungenani iminyaka engamashumi amabili ezayo, nakuba kugcizelelwa kakhulu ukusebenza kahle, ukusebenza kwemvelo, nokuhlanganiswa nezinhlobonhlobo zamandla.

Ukusungula izinto ezintsha ekwakhiweni nasekukhiqizweni kwezinto zokugcwalisa imifantu kuzoba yinto ebalulekile ezinkampanini ezifuna ukuphumelela emakethe eguquguqukayo. Ucwaningo lwenziwa ngezinto zokugcwalisa imifantu ezingakwazi ukubona izinguquko ezimweni ezansi emgodini, ukukhulula izinto ezibonisa ukuhamba kwamanzi, noma ngisho nokudlulisa ugesi ukuze kuqashwe amanethiwekhi emifantu. Izinto zokugcwalisa imifantu ezihlakaniphile, ezihlanganiswe nezinzwa, zingahlinzeka ngedatha yesikhathi sangempela mayelana nokuvaleka kwemifantu, ukusabalala kokugeleza, nokuphela kwesikhundla, okuzovumela abaqhubi ukuthi balolonge ukukhiqiza futhi bandise impilo yomthombo. Noma ngabe kusesezigabeni zokuhlola, ubuchwepheshe obunjalo bungashintsha indlela yokuphatha izikhundla futhi budale imithombo emisha yenzuzo kubakhiqizi bezinto zokugcwalisa imifantu. Ngaleso sikhathi, intuthuko ekuzenzakaleleni, ubuhlakani bokwenziwa, kanye nezingqamuzana zedijithali zishintsha indlela izitshalo zezinto zokugcwalisa imifantu ezisebenza ngayo, zithuthukisa ukungaguquguquki kwekhwalithi, zinciphisa ukusetshenziswa kwamandla, futhi zinciphisa izindleko zokukhiqiza. I-Hebei Kaiyuan Oil Proppant Co., Ltd., ngokugxila kwayo ekusunguleni izinto ezintsha zobuchwepheshe kanye nezinsizakalo ezenziwe ngendlela oyifisayo, ibekwe kahle ukuthi ibe nesandla kule ntuthuko. YaboUkwenziwa ngokwezifiso izixazululo zivumela amaklayenti ukuthi achaze izici ezihlukile ze-proppant, ziqinisekise ukuthi ngisho nezimo ezidinga kakhulu ze-reservoir zingaxazululwa ngezinto eziklanyelwe zona. Njengoba imboni yamandla iqhubeka nokuguquguquka, ikhono lokujwayelanisa ubuchwepheshe be-proppant ukuhlangabezana nezinselelo ezintsha kuyoba kubalulekile ekugcineni ubuhle bokusebenza kanye nesibopho semvelo.

Isihlabathi se-frac nama-ejenti okweseka kubalulekile emkhakheni wamandla wesimanje, okuvumela ukukhipha kahle uwoyela negesi yemvelo kusuka kumachibi anzima ngokwengeziwe. Kusukela endimeni eyisisekelo yama-proppants ekugcineni ukuxhumana kwe-fracture kuye ezimakethe eziyinkimbinkimbi zokufunwa nokuhlinzekwa, lesi sihloko sihlolisise izici ezibalulekile okufanele abachwepheshe bemboni baqonde. Ukukhetha uhlobo lwe-proppant—kungaba isihlabathi semvelo, i-ceramic, noma i-resin-coated—kuncike ezimweni zechibi, imikhawulo yezenotho, kanye nemigomo yokusebenza, okwenza ubuchwepheshe kwezobuchwepheshe kanye nekhwalithi yomkhiqizo kubaluleke kakhulu empumelelweni. Imithetho yezemvelo kanye nezinkathazo zomphakathi zibumba indlela isihlabathi se-frac esimayiniwa, esicwengwa, futhi esisetshenziswa ngayo, iphusha imboni ibheke ezindleleni ezihlanzekile nezicacile ezihambisana nemigomo ebanzi yamandla avuselelekayo kanye nentuthuko esimeme. Ngaleso sikhathi, ukubuka kwesikhathi esizayo kuhlala kuthembisa ngokucophelela, ngokufunwa okuqhubekayo kwegesi yemvelo, ubuchwepheshe obusha, kanye namathuba ezicelo ezintsha emandleni e-geothermal kanye nama-proppants ahlakaniphile ahlinzeka ngezindlela zokukhula.

Kubhizinisi elisebenza emkhakheni wezinguquko zamandla nezinsiza, ukuhlala unolwazi ngentuthuko yakamuva kubuchwepheshe be-frac sand, ukuhanjiswa kwezinto, kanye nezimiso ezithuthukayo kubalulekile ekwenzeni izinqumo ezinhle zokutshala izimali nokusebenza. Ukubandakanyeka enkingeni yokubonisana enamandla nenziwa nabakhiqizi abanolwazi kungahlinzeka ngemininingwane ebalulekile ekukhetheni i-proppant, ukuqinisekiswa kwekhwalithi, nokwenza kahle kwezindleko. Izinkampani ezifana ne-Hebei Kaiyuan Oil Proppant Co., Ltd. zibonisa ubuchwepheshe nokuzibophezela ekugqamiseni lokho umkhakha owudingayo, zinikeza uhla olubanzi lwemikhiqizo namasevisi asekelwa ukulawulwa kwekhwalithi okuqinile kanye nokuqamba okusha okuqhubekayo. Noma ngabe ungumsebenzisi ohlela umkhankaso omusha wezimbobo, umphathi wokuthenga ohlolela abahlinzeki, noma umenzi wezinqubomgomo ohlolela umthelela wezinto ezithinta imvelo ekukhiqizweni kukaphethiloli negesi, ukuqonda indima ye-frac sand kanye nabasizi bokusekela kubalulekile. Sikhuthaza abafundi ukuthi bahlole izinsiza ezitholakala kuIKHAYAikhasi ukuze ufunde kabanzi ngendlela ama-proppant asezingeni eliphezulu anomthelela kanjani ekukhiqizeni amandla ngendlela ephumelelayo, enesibopho. Ngokuhlanganisa ulwazi lobuchwepheshe nobudlelwano bamasu, umkhakha wamandla ungakwazi ukuqhubeka nokuhlinzeka ngamandla athembekile ngenkathi uzivumelanisa nezwe elishintshayo.