Nzira yekuziva sei kuongororwa kwePDC bit ROP modhi uye mhedzisiro yekusimba kwedombo pane modhi coefficients?

Abstract

Parizvino mitengo yemafuta yakaderera yavandudza kukoshesa kwekuchera kuitira kuchengetedza nguva yekuchera mafuta negasi matsime uye kuderedza mari yekushandisa. Rate of penetration (ROP) modelling chishandiso chakakosha mukugadzirisa maparamendi ekuchera, kureva huremu huremu uye kumhanya kwekutenderera kwekukurumidza kuchera maitiro. Iine chinyorwa, zvese-otomatiki data kuona uye ROP yekumisikidza chishandiso chakagadzirwa muExcel VBA, ROPPlotter, basa iri rinoongorora mashandiro emuenzaniso uye kukanganisa kwesimba redombo pamhando coefficients yemhando mbiri dzakasiyana dzePDC Bit ROP: Hareland neRampersad (1994) uye Motahhari. et al. (2010). Vaviri ava PDC zvishoma mamodheru anofananidzwa nea base case, general ROP hukama hwakagadziridzwa naBingham (1964) mumatatu akasiyana ejecha maumbirwo muchikamu chakatwasuka cheBakken shale yakachinjika tsime. Kekutanga, kuyedza kwakaitwa kupatsanura mhedzisiro yekusiyana kwesimba redombo paROP modhi coefficients nekuferefeta lithologies neimwe nzira yekuchera yakafanana. Uyezve, kukurukurirana kwakazara pamusoro pekukosha kwekusarudza zvakakodzera muenzaniso coefficients miganhu inoitwa. Simba redombo, rinoverengerwa mumhando dzeHareland neMotahhari asi kwete muBingham, zvinoguma nehunhu hwepamusoro hwekuramba huchiwedzera mamodhi coefficients eaimbova mamodheru, mukuwedzera kune yakawedzera RPM temu exponent yeMotahhari modhi. Modhi yeHareland neRampersad inoratidzwa kuita zvirinani kubva pamamodhi matatu ane iyi dataset. Kushanda uye kushanda kwemaitiro echinyakare eROP kunounzwa kumibvunzo, sezvo mhando dzakadai dzichitsamira pane seti yeempirical coefficients inobatanidza mhedzisiro yezvinhu zvakawanda zvekuchera zvisingaverengeki mukuumbwa kwemuenzaniso uye akasiyana kune imwe lithology.

Nhanganyaya

PDC (Polycrystalline Diamond Compact) mabits ndiwo ane simba-mhando anoshandiswa mukuchera mafuta negasi matsime nhasi. Kuita kwebhiti kunowanzoyerwa nechiyero chekupinda (ROP), chiratidzo chekukurumidza kucherwa kwegomba maererano nehurefu hwegomba rakacherwa panguva yeyuniti. Kudhira optimization kwave kuri pamberi pezvirongwa zvemakambani emagetsi kwemakumi emakore ikozvino, uye kunowedzera kukosha panguva yazvino yemitengo yemafuta yakaderera (Hareland neRampersad, 1994). Nhanho yekutanga mukunatsiridza maparamendi ekuchera kuti ibudise iyo yakanyanya kunaka ROP kugadzirwa kweiyo modhi chaiyo ine chekuita nezviyero zvakawanikwa pamusoro kusvika pachiyero chekuchera.

Akawanda maROP modhi, kusanganisira mamodheru akagadziridzwa akanangana nerumwe rudzi, akaburitswa muzvinyorwa. Aya maROP modhi anowanzo aine akati wandei eempirical coefficients anotsamira muzvinyorwa uye anogona kukanganisa kunzwisiswa kwehukama pakati pekuchera paramita uye mwero wekupinda. Chinangwa chechidzidzo ichi ndechekuongorora mashandiro emodhi uye kuti mamodhi coefficients anopindura sei kune data remumunda rine maparamita ekuchera akasiyana, kunyanya simba redombo, maviri.PDC zvishoma mhando (Hareland uye Rampersad, 1994, Motahhari et al., 2010). Model coefficients uye kuita kunofananidzwawo ne base base ROP modhi (Bingham, 1964), hukama hwakareruka hwakashanda seyekutanga ROP modhi yakashandiswa zvakanyanya muindasitiri yese uye ichiri kushandiswa parizvino. Kuchera data remumunda mumaumbirwo matatu ejecha ane simba redombo rakasiyana-siyana kunoongororwa, uye modhi coefficients yemamodheru matatu aya anoverengerwa nekuenzaniswa neimwe. Zvinofungidzirwa kuti macoefficients emhando dzeHareland neMotahhari mukugadzirwa kwedombo rega rega achatambanudzira huwandu hwakakura kupfuura hwemhando yeBingham, sezvo simba redombo rakasiyana risingaverengerwe zvakajeka mukugadzirwa kwekupedzisira. Kuita kwemuenzaniso kunoongororwawo, zvichitungamira kusarudzo yemhando yepamusoro yeROP yedunhu reBakken shale muNorth Dakota.

Mhando dzeROP dzakasanganisirwa mubasa iri dzinosanganisira inflexible equations inoenderana nemwero mishoma yekuchera kune mwero wekuchera uye ine seti yeempirical coefficients inosanganisa pesvedzero yezvakaoma-ku-modhi yekuchera michina, senge hydraulics, cutter-rock interaction, bit. dhizaini, yepasi-gomba gungano maitiro, mhando yedhaka, uye kuchenesa gomba. Kunyangwe aya echinyakare maROP modhi kazhinji asingaite zvakanaka kana achienzaniswa nedata remumunda, anopa danho rakakosha rekukwira kune hutsva hwekuenzanisira matekiniki. Mazuva ano, ane simba, nhamba-yakavakirwa modhi nekuwedzera kuchinjika inogona kuvandudza kurongeka kweROP modhi. Gandelman (2012) akashuma kukwidziridzwa kwakakosha muROP modhi nekushandisa artificial neural network pane yechinyakare ROP modhi mumatsime emafuta mumabheseni esati aiswa munyu kumahombekombe kweBrazil. Artificial neural network zvakare yakashandiswa zvinobudirira kufungidzira kweROP mumabasa aBilgesu et al. (1997), Moran et al. (2010) uye Esmaeili et al. (2012). Nekudaro, kuvandudzwa kwakadaro muROP modhi kunouya nekurasikirwa kwemuenzaniso kududzira. Naizvozvo, echinyakare ROP modhi ichiri yakakosha uye inopa inoshanda nzira yekuongorora kuti chaiyo yekuchera parameter inokanganisa sei mwero wekupinda.

ROPPlotter, yekuona data yemunda uye ROP modelling software yakagadziridzwa muMicrosoft Excel VBA (Soares, 2015), inoshandiswa mukuverenga modhi coefficients uye kuenzanisa modhi maitiro.