Ungazi kanjani ukuhlolwa kwamamodeli e-PDC bit ROP kanye nomthelela wamandla edwala kuma-coefficients emodeli?

Isifinyezo

Izimo zamanje zentengo kawoyela eziphansi zivuselele ukugcizelelwa kokwenziwa ngcono kokumba ukuze kongiwe isikhathi ukumba imithombo kawoyela negesi futhi kuncishiswe izindleko zokusebenza. Ukumodela kwezinga lokungena (ROP) kuyithuluzi elibalulekile ekwenzeni ngcono amapharamitha okumba, okungukuthi isisindo sebhithi kanye nesivinini esijikelezayo sezinqubo zokumba ezisheshayo. Ngethuluzi elisha, lokubona idatha elizenzakalelayo kanye nethuluzi lokumodela le-ROP elithuthukiswe ku-Excel VBA, ROPPlotter, lo msebenzi uhlola ukusebenza kwemodeli kanye nomthelela wamandla edwala kuma-coefficients amamodeli amabili ahlukene e-PDC Bit ROP: uHareland noRampersad (1994) kanye noMotahhari et al. (2010). Laba ababili I-PDC bit Amamodeli aqhathaniswa necala eliyisisekelo, ubudlelwano obujwayelekile be-ROP obuthuthukiswe nguBingham (1964) ekwakhekeni kwamatshe amathathu ahlukene esihlabathini engxenyeni eqondile yomthombo ovundlile we-Bakken shale. Okokuqala ngqa, kwenziwe umzamo wokuhlukanisa umphumela wamandla edwala ahlukahlukene kuma-coefficients emodeli ye-ROP ngokuphenya ama-lithologies anemingcele yokubhoboza efanayo. Ngaphezu kwalokho, kwenziwa ingxoxo ebanzi ngokubaluleka kokukhetha imingcele yama-coefficients emodeli afanele. Amandla edwala, abalwa kumamodeli kaHareland noMotahhari kodwa hhayi kuma-Bingham, aholela enanini eliphakeme lama-coefficients emodeli aphindaphindayo njalo kumamodeli wangaphambili, ngaphezu kwe-exponent ye-RPM term eyengeziwe yemodeli kaMotahhari. Imodeli kaHareland noRampersad iboniswa ukuthi isebenza kahle kakhulu kumamodeli amathathu anale sethi yedatha ethile. Ukusebenza kahle nokusebenza kwemodeli ye-ROP yendabuko kuyabuzwa, njengoba amamodeli anjalo ethembele kusethi yama-coefficients afaka umphumela wezinto eziningi zokubhoboza ezingabalwanga ekwakhiweni kwemodeli futhi ahlukile ku-lithology ethile.

Isingeniso

Ama-bit e-PDC (Polycrystalline Diamond Compact) ayizinhlobo zama-bit ezisetshenziswa kakhulu ekubholeni imithombo kawoyela negesi namuhla. Ukusebenza kwama-bit kuvame ukulinganiswa ngesilinganiso sokungena (ROP), okubonisa ukuthi umthombo ubholwa ngokushesha kangakanani ngokwesikhathi sobude bemigodi ebholwa ngeyunithi ngayinye. Ukulungiswa kokubholwa bekulokhu kuphambili ezinhlelweni zezinkampani zamandla amashumi eminyaka manje, futhi kuthola ukubaluleka okwengeziwe ngesikhathi samanje sentengo kawoyela ephansi (Hareland noRampersad, 1994). Isinyathelo sokuqala sokwenza ngcono amapharamitha okubholwa ukuze kukhiqizwe i-ROP engcono kakhulu ukuthuthukiswa kwemodeli enembile ehlobene nezilinganiso ezitholwe endaweni ephezulu kuya esilinganisweni sokubholwa.

Amamodeli amaningana e-ROP, kufaka phakathi amamodeli athuthukiswe ngqo uhlobo oluthile lwe-bit, ashicilelwe ezincwadini. Lawa mamodeli e-ROP ngokuvamile aqukethe inani lama-coefficients ancike ku-lithology futhi angaphazamisa ukuqonda kobudlelwano phakathi kwamapharamitha okubhoboza kanye nesivinini sokungena. Inhloso yalolu cwaningo ukuhlaziya ukusebenza kwemodeli nokuthi ama-coefficients amamodeli asabela kanjani kudatha yasensimini ngamapharamitha okubhoboza ahlukahlukene, ikakhulukazi amandla edwala, kwamabili.I-PDC bit amamodeli (uHareland noRampersad, 1994, uMotahhari et al., 2010). Ama-coefficients namamodeli okusebenza nawo aqhathaniswa nemodeli ye-ROP yecala eliyisisekelo (uBingham, 1964), ubudlelwano obulula obusebenze njengemodeli yokuqala ye-ROP esetshenziswa kabanzi kulo lonke imboni futhi esasetshenziswa njengamanje. Idatha yensimu yokumba ezindaweni ezintathu zamatshe esihlabathi ezinamandla ahlukahlukene edwala iyaphenywa, futhi ama-coefficients amamodeli alawa mamodeli amathathu ayabalwa futhi aqhathaniswe. Kucatshangwa ukuthi ama-coefficients amamodeli kaHareland noMotahhari ekwakhiweni ngakunye kwedwala azohlanganisa ububanzi obukhulu kune-coefficients yamamodeli kaBingham, njengoba amandla ahlukahlukene edwala engabalwa ngokucacile ekwakhiweni kwakamuva. Ukusebenza kwemodeli nakho kuyahlolwa, okuholela ekukhethweni kwemodeli ye-ROP engcono kakhulu yesifunda saseBakken shale eNyakatho Dakota.

Amamodeli e-ROP afakwe kulo msebenzi aqukethe ama-equation angaguquki ahlobanisa amapharamitha ambalwa okubhoboza nesilinganiso sokubhoboza futhi aqukethe isethi yama-coefficients aqanjiwe ahlanganisa ithonya lezindlela zokubhoboza ezilukhuni, njenge-hydraulics, ukusebenzisana kwe-cutter-rock, ukwakheka kwe-bit, izici zokuhlanganisa imbobo engezansi, uhlobo lodaka, kanye nokuhlanza imbobo. Nakuba lawa mamodeli e-ROP endabuko ngokuvamile engenzi kahle uma eqhathaniswa nedatha yasensimini, ahlinzeka ngesisekelo esibalulekile kumasu amasha okumodela. Amamodeli anamuhla, anamandla kakhulu, asekelwe kwizibalo anokuguquguquka okwandisiwe angathuthukisa ukunemba kokumodela kwe-ROP. UGandelman (2012) ubike ukuthuthukiswa okukhulu ekumodeleni kwe-ROP ngokusebenzisa amanethiwekhi e-neural okwenziwa esikhundleni samamodeli e-ROP endabuko emithonjeni kawoyela ezitsheni zangaphambi kosawoti ogwini lwaseBrazil. Amanethiwekhi e-neural okwenziwa nawo asetshenziswa ngempumelelo ekubikezeleni kwe-ROP emisebenzini kaBilgesu et al. (1997), Moran et al. (2010) kanye no-Esmaeili et al. (2012). Kodwa-ke, ukuthuthukiswa okunjalo ekumodeleni kwe-ROP kuza ngezindleko zokuhunyushwa kwemodeli. Ngakho-ke, amamodeli e-ROP endabuko asasebenza futhi ahlinzeka ngendlela ephumelelayo yokuhlaziya ukuthi ipharamitha ethile yokubhoboza ithinta kanjani izinga lokungena.

I-ROPPlotter, isofthiwe yokubona idatha yasensimini kanye nesofthiwe yokumodela ye-ROP eyakhiwe ku-Microsoft Excel VBA (Soares, 2015), isetshenziswa ekubaleni ama-coefficients amamodeli kanye nokuqhathanisa ukusebenza kwemodeli.