Kakaretso
Maemo a hajoale a theko e tlase ea oli a tsosolositse khatiso ea ntlafatso ea ho cheka molemong oa ho boloka nako ea ho cheka liliba tsa oli le khase le ho fokotsa litšenyehelo tsa ts'ebetso.Rate of penetration modelling (ROP) ke sesebelisoa se ka sehloohong sa ho ntlafatsa maemo a ho cheka, e leng boima ba 'mele le lebelo la ho potoloha bakeng sa mekhoa e potlakileng ea ho cheka.Ka buka ea buka, pono ea data e ikemetseng le sesebelisoa sa ho etsa mohlala sa ROP se ntlafalitsoeng ho Excel VBA, ROPPlotter, mosebetsi ona o batlisisa ts'ebetso ea mohlala le phello ea matla a lefika ho li-coefficients tsa mohlala oa mefuta e 'meli e fapaneng ea PDC Bit ROP: Hareland le Rampersad (1994) le Motahhari. le al.(2010).Tsena tse peli PDC e nyenyane mehlala e bapisoa khahlanong le nyeoe ea motheo, kamano e akaretsang ea ROP e ntlafalitsoeng ke Bingham (1964) ka mekhoa e meraro e fapaneng ea lejoe la lehlabathe karolong e otlolohileng ea seliba sa Bakken shale se otlolohileng.Lekhetlo la pele, ho entsoe boiteko ba ho khetholla phello ea matla a mafika a fapaneng ho li-coefficients tsa mohlala oa ROP ka ho batlisisa lithologies tse nang le likarolo tse ling tse tšoanang tsa ho cheka.Ho phaella moo, puisano e pharaletseng ea bohlokoa ba ho khetha meeli e nepahetseng ea li-coefficients e etsoa.Matla a lefika, a balloang mefuteng ea Hareland le ea Motahhari empa eseng ea Bingham, a fella ka litekanyetso tse phahameng tsa li-coefficients tse ngata tse atisang ho sebelisoa bakeng sa mehlala ea pele, ho phaella ho palo e eketsehileng ea nako ea RPM bakeng sa mohlala oa Motahhari.Moetso oa Hareland le Rampersad o bontšoa o sebetsa hantle ho feta mefuta e meraro e nang le datha ena.Ho sebetsa hantle le ho sebetsa ha mokhoa oa setso oa ROP hoa belaelloa, kaha mehlala e joalo e itšetlehile ka sete ea li-coefficients tse kenyelletsang phello ea lintlha tse ngata tsa ho cheka tse sa kang tsa tlalehoa tlhahisong ea mohlala 'me li ikhetha ho lithology e itseng.
Selelekela
Li-bits tsa PDC (Polycrystalline Diamond Compact) ke mofuta o ka sehloohong o sebelisoang ho cheka liliba tsa oli le khase kajeno.Ts'ebetso ea Bit hangata e lekantsoe ka sekhahla sa ho kenella (ROP), sesupo sa hore na seliba se chekoa kapele hakae ho latela bolelele ba sekoti se chekiloeng ka nako ea yuniti.Ntlafatso ea ho cheka e 'nile ea e-ba ka pele-pele mererong ea lik'hamphani tsa matla ka lilemo tse mashome hona joale,' me e fumana bohlokoa bo eketsehileng nakong ea maemo a hona joale a theko e tlaase ea oli (Hareland le Rampersad, 1994).Mohato oa pele oa ho ntlafatsa maemo a ho cheka ho hlahisa ROP e ntle ka ho fetisisa e ka khonehang ke nts'etsopele ea mohlala o nepahetseng o amanang le litekanyo tse fumanoeng holimo le sekhahla sa ho cheka.
Mefuta e mengata ea ROP, ho kenyeletsoa le mefuta e ntlafalitsoeng ka ho khetheha bakeng sa mofuta o itseng, e phatlalalitsoe libukeng.Mefuta ena ea ROP hangata e na le li-coefficients tse 'maloa tse itšetlehileng ka thuto ea thuto ea mafu 'me li ka senya kutloisiso ea kamano pakeng tsa litekanyo tsa ho cheka le sekhahla sa ho kenella.Sepheo sa thuto ena ke ho sekaseka ts'ebetso ea mohlala le hore na li-coefficients tsa mohlala li arabela joang data ea tšimo ka mekhoa e fapaneng ea ho cheka, haholo-holo matla a rock, bakeng sa tse peli.PDC e nyenyane mehlala (Hareland le Rampersad, 1994, Motahhari et al., 2010).Li-coefficients tsa mohlala le ts'ebetso li boetse li bapisoa le mofuta oa motheo oa ROP (Bingham, 1964), kamano e bonolo e ileng ea sebetsa e le mohlala oa pele oa ROP o sebelisoang haholo indastering eohle 'me o ntse o sebelisoa hona joale.Ho hlahlojoa lintlha tsa sebaka sa ho cheka ka libopeho tse tharo tsa lehlabathe tse nang le matla a sa tšoaneng a majoe, 'me li-coefficients tsa mohlala tsa mefuta ena e meraro lia bapisoa le ho bapisoa le tse ling.Ho nahanoa hore li-coefficients tsa mefuta ea Hareland le Motahhari sebopehong ka seng sa mafika li tla fapana ho feta li-coefficients tsa mohlala oa Bingham, kaha matla a mafika a sa tšoaneng ha a baloe ka ho hlaka mofuteng oa ho qetela.Ts'ebetso ea mohlala e boetse e hlahlojoa, e lebisang khethong ea mohlala o motle ka ho fetisisa oa ROP bakeng sa sebaka sa Bakken shale se North Dakota.
Mefuta ea ROP e kenyellelitsoeng mosebetsing ona e na le li-equations tse sa fetoheng tse amanang le litekanyetso tse 'maloa tsa ho cheka le sekhahla sa ho cheka,' me e na le sehlopha sa li-coefficients tse kopanyang tšusumetso ea mekhoa ea ho cheka e thata ho ea mohlala, joalo ka li-hydraulics, cutter-rock interaction, bit. moralo, litšoaneleho tsa kopano ea sekoti se ka tlase, mofuta oa seretse, le ho hloekisa lesoba.Leha mefuta ena ea setso ea ROP hangata e sa sebetse hantle ha e bapisoa le data ea tšimo, e fana ka mohato oa bohlokoa ho mekhoa e mecha ea ho etsa mohlala.Mehlala ea morao-rao, e matla haholoanyane, e thehiloeng ho lipalo-palo e nang le ho feto-fetoha ha maemo ho ka ntlafatsa ho nepahala ha ROP modelling.Gandelman (2012) e tlalehile ntlafatso e kholo ea ho etsa mohlala oa ROP ka ho sebelisa marang-rang a maiketsetso a marang-rang ho e-na le mefuta e tloaelehileng ea ROP lilibeng tsa oli ka har'a libaswana tsa pele ho letsoai lebōpong la Brazil.Marang-rang a maiketsetso a neural a boetse a sebelisoa ka katleho bakeng sa ho bolela esale pele ka ROP mesebetsing ea Bilgesu et al.(1997), Moran et al.(2010) le Esmaeili et al.(2012).Leha ho le joalo, ntlafatso e joalo ea ho etsa mohlala oa ROP e tla ka litšenyehelo tsa tlhaloso ea mohlala.Ka hona, mefuta ea setso ea ROP e ntse e sebetsa 'me e fana ka mokhoa o sebetsang oa ho sekaseka hore na parameter e itseng ea ho cheka e ama sekhahla sa ho kenella joang.
ROPPlotter, pono ea data ea masimong le software ea mohlala ea ROP e ntlafalitsoeng ho Microsoft Excel VBA (Soares, 2015), e sebelisoa ho bala li-coefficients tsa mohlala le ho bapisa ts'ebetso ea mohlala.
Nako ea poso: Sep-01-2023