Nzira yekuziva sei kuongororwa kwemamodeli ePDC bit ROP uye mhedzisiro yesimba redombo pama coefficients emuenzaniso?

Pfupiso

Mamiriro emitengo yakaderera yemafuta aripo iye zvino avandudza kusimbiswa kwekugadzirisa kuchera kuitira kuchengetedza nguva yekuchera matsime emafuta negasi uye kuderedza mari yekushanda. Kuenzanisa kwehuwandu hwekupinda (ROP) chishandiso chakakosha mukugadzirisa maparamita ekuchera, kureva huremu hwebit uye kumhanya kwerotary kuti zviite nekukurumidza kuchera. Nekushandisa data visualization itsva, inongoerekana yaitwa otomatiki uye ROP modeling tool yakagadzirwa muExcel VBA, ROPPlotter, basa iri rinoongorora mashandiro emodheru uye simba redombo pamodheru yemodheru yemhando mbiri dzakasiyana dzePDC Bit ROP: Hareland naRampersad (1994) naMotahhari et al. (2010). Idzi mbiri PDC bit Mamodheru anoenzaniswa nemuenzaniso wekutanga, hukama hweROP hwakagadziriswa naBingham (1964) muzvikamu zvitatu zvakasiyana zvejecha muchikamu chakamira chetsime reBakken shale rakatwasuka. Kekutanga, kuyedza kwakaitwa kusiyanisa simba redombo rakasiyana paROP model coefficients nekutsvaga lithologies dzine zvimwe zvakafanana zvekuboorera. Pamusoro pezvo, hurukuro yakazara pamusoro pekukosha kwekusarudza miganhu yakakodzera yemodheru coefficients inoitwa. Simba redombo, rinoverengerwa mumodheru dzaHareland naMotahhari asi kwete muBingham, rinoguma nehukuru hwe coefficients dze constant multiplier dzemodheru dzekare, pamwe nekuwedzera kweRPM term exponent yemodheru yaMotahhari. Modheru yaHareland naRampersad inoratidzwa kuti inoshanda zvakanyanya kubva mumodheru nhatu dzine iyi dataset chaiyo. Kushanda uye kushanda kwemuenzaniso weROP wetsika kunobvunzwa, sezvo mamodheru akadaro achitsamira pane seti yema coefficients e empirical anosanganisira mhedzisiro yezvinhu zvakawanda zvekuboorera zvisina kuverengerwa mukugadzirwa kwemodheru uye akasiyana kune lithology chaiyo.

Nhanganyaya

PDC (Polycrystalline Diamond Compact) bits ndiyo inonyanya kushandiswa mumatsime emafuta negasi ekuchera nhasi. Kushanda kwebit kunowanzo kuyerwa nechiyero chekupinda (ROP), chiratidzo chekuti tsime rinocherwa nekukurumidza sei maererano nehurefu hwemaburi anocherwa panguva imwe neimwe. Kugadzirisa kuchera kwave kuri pamberi pezvirongwa zvemakambani emagetsi kwemakumi emakore ikozvino, uye kunowedzera kukosha munguva yemitengo yakaderera yemafuta iripo (Hareland naRampersad, 1994). Danho rekutanga mukugadzirisa maparamita ekuchera kuti agadzire ROP yakanakisa kugadzira modhi chaiyo ine chekuita nekuyera kunowanikwa pamusoro pehuwandu hwekuchera.

Mamodheru akati wandei eROP, kusanganisira mamodheru akagadzirwa zvakananga kune imwe mhando yebit, akaburitswa mumabhuku. Mamodheru aya eROP anowanzo kuve nehuwandu hwema coefficients e empirical anoenderana ne lithology uye anogona kukanganisa kunzwisisa kwehukama huripo pakati pema parameter ekuboorera uye mwero wekupinda. Chinangwa chechidzidzo ichi ndechekuongorora mashandiro emodheru uye kuti ma coefficients emodheru anopindura sei kudata remunda rine ma parameter akasiyana ekuboorera, kunyanya simba redombo, kune maviri.PDC bit mamodheru (Hareland naRampersad, 1994, Motahhari et al., 2010). Makodheru emhando uye mashandiro anoenzaniswawo nemuenzaniso wekutanga weROP (Bingham, 1964), hukama huri nyore hwakashanda semuenzaniso wekutanga weROP wakashandiswa zvakanyanya muindasitiri yese uye uchiri kushandiswa parizvino. Ruzivo rwekuchera munzvimbo nhatu dzejecha dzine simba rakasiyana rematombo rwunoongororwa, uye makodheru emhando idzi nhatu anoverengerwa uye anoenzaniswa. Zvinofungidzirwa kuti makodheru emhando dzeHareland neMotahhari mukugadzirwa kwedombo rega rega achatora nzvimbo yakakura kupfuura makodheru emuenzaniso eBingham, sezvo simba rakasiyana redombo risingaverengerwi zvakajeka mukugadzirwa kwekupedzisira. Kushanda kwemuenzaniso kunoongororwawo, zvichitungamira kusarudzo yemuenzaniso wakanakisa weROP wedunhu reBakken shale muNorth Dakota.

Mamodheru eROP ari mubasa iri ane maequations asingachinjiki anobatanidza maparamita mashoma ekuboorera nedanho rekuboorera uye ane seti yema coefficients empirical anobatanidza pesvedzero yemichina yekuboorera yakaoma kuita modhi, senge ma hydraulics, cutter-rock interaction, bit design, bottom-hole assembly characteristics, mud type, uye hole cleaning. Kunyangwe aya maROP models echinyakare asingashande zvakanaka kana achienzaniswa nedata remunda, anopa danho rakakosha kune matekiniki matsva ekuboorera. Mamodheru emazuva ano, ane simba, akavakirwa panhamba ane flexibility yakawedzerwa anogona kuvandudza kururama kweROP modeling. Gandelman (2012) akataura nezvekuvandudzwa kukuru muROP modeling nekushandisa ma artificial neural networks panzvimbo pema ROP models echinyakare mumatsime emafuta mu pre-salt basin dziri kumahombekombe eBrazil. Artificial neural networks anoshandiswawo zvinobudirira pakufanotaura kweROP mumabasa aBilgesu et al. (1997), Moran et al. (2010) naEsmaeili et al. (2012). Zvisinei, kuvandudzwa kwakadaro muROP modeling kunouya nekuda kwekugona kududzirwa kwemodhi. Saka, maROP models echinyakare achiri kushanda uye anopa nzira inoshanda yekuongorora kuti parameter chaiyo yekuboorera inokanganisa sei mwero wekupinda kwemvura.

ROPPlotter, software yekuona data remumunda uye ROP modeling yakagadzirwa muMicrosoft Excel VBA (Soares, 2015), inoshandiswa pakuverenga mamodheru emuenzaniso uye kuenzanisa mashandiro emodheru.