Tataiso e Felletseng ea Khetho le Tšebeliso ea Tricone Drill Bit

Ho cheka ka rotary, thecheka hanyanee sebetsa e le sesebelisoa sa mantlha sa ho phunya mafika. Boleng ba biti le ho tsamaellana ha eona le mofuta oa sebopeho, thepa ea mafika, le maemo a ho phunya li ama ka kotloloho lebelo la ho cheka. Ho khetha mofuta o nepahetseng oa li-bit le li-parameter tsa ho cheka ho ipapisitse le maemo a sebopeho ke senotlolo sa ho ntlafatsa bokhoni ba ho cheka le ho theola litšenyehelo. Ho cheka seliba se tebileng ho kopana le libopeho tse ngata le mefuta ea majoe e nang le thepa e fapaneng, ea ho etsacheka hanyanekhetho mosebetsi o rarahaneng.

1. Mokhoa oa ho khetha Epirical Bit

E boetse e tsejoa e le Mokhoa oa Boitsebiso oa Tšimo ea Tšimo, ona ke mokhoa o sebetsang le o sebelisoang haholo har'a litsebi tsa masimo. E ipapisitse le ho sekaseka lintlha tse tsoang lilibeng tse haufi sebakeng se le seng, ho tsepamisitsoe maikutlo holim'a mefuta ea likotoana tse fihletseng palo e phahameng ka ho fetisisa e phuntsoeng le sekhahla sa ho kenella ka kakaretso tlas'a maemo a tšoanang a jeoloji le botebo. Mokhoa ona o bonolo, o sebetsa ebile o loketse libaka tse nang le libopeho tse tšoanang.

2. Reference-Thehiloeng Bit Selection Mokhoa

Ho hlola mefokolo ea mekhoa ea liteko, mokhoa ona o kenyelletsa lintlha tsa ho rema lifate tsa acoustic joalo ka sesupo sa sebopeho se sa tobang, se ntlafatsang ho nepahala ha mahlale. E tsejoa e le "Reference Method," e hloka hore bafani ba thepa ba bapise litekanyo tsa sebopeho tse nkiloeng ho rengoang lifate tsa acoustic le litempele tse tloaelehileng tsa khetho, e leng se nolofalletsang likhothaletso tse nepahetseng.

3. Equal Probability Khetho e nyaneMokhoa

Mokhoa ona o latela mokhoa o hlophisitsoeng:

• Fumana lintlha tsa ho sebetsa ka mokhoa oa liteko kapa mekhoa ea ho lepa.
• Sebelisa tlhahlobo ea lipalo-palo mabapi le data e bokelletsoeng ea ho phunya mafika ho fumana kakaretso ea bokhoni ba ho phunya (Kd) le phoso e tloaelehileng (S) bakeng sa sebopeho ka seng.
• Ka chate ea khetho ea likotoana tsa khoutu ea IADC, tsamaisana le boemo ba bokhoni ba ho cheka ho hloa mefuta e nepahetseng bakeng sa sebopeho se seng le se seng sa jeoloji.

4. Li-Parameters tsa ho cheka tse khothalelitsoeng bakeng sa Mefuta Eohle

Ts'ebetso e nepahetseng ea acheka hanyanee itšetlehile ka ho khetha mofuta o nepahetseng oa likotoana le ho sebelisa li-parameter tse loketseng tsa ho phunya.

5. Profaele ea ho Drillability le Khetho ea Bit bakeng sa Tlhahiso ea Puguang

Ho sebelisoa boitsebiso ba jeoloji le ho rema lifate tse tsoang lilibeng tse sebakeng sa Puguang, ho ile ha hlahlobjoa tšebetso e nyenyane ea ba ea aroloa ka likarolo tsa jeoloji le boholo ba metsi a metsi ka "Drill Bit Technical Efficiency Index" (JX=VL=karolelano ea sekhahla sa ho kenella ka mochine × litšoantšo tse nyenyane).

• Boemo ba Sebopeho le Lithology: Lintlha tsa mabitso a lera, botenya, le mefuta e kopaneng ea majoe sebakeng sa Puguang.
• Profaele ea ho Drillability le Khetho ea Bit e khothalelitsoeng: E ​​khetholla libopeho ka likhoutu tsa IADC ho ipapisitsoe le maemo a bokhoni ba ho cheka.
• Litlhahiso tsa Khetho ea Empirical Bit: Ho ipapisitsoe le data ea tšebeliso ea libaka, sena se fana ka litlhophiso tse khothaletsoang bakeng sa boholo bo tloaelehileng.
• Litlhahiso tsa Paramethara ea Boenjiniere: E bala boima ba 'mele-on-bit (WOB), RPM, hydraulic power index, le threshold WOB e ipapisitse le ho cheka majoe

6. Tataiso bakeng sa Khetho e nepahetseng ea ho Drill Bit le Tšebeliso

(a) Khetho e Thehiloeng ho Lithology le Bokhoni ba ho Drill: Khetho ea lithupa tsa ho cheka e lokela ho nahana haholo ka thuto ea sebopeho le bokhoni ba ho phunya, ka litokiso tse ipapisitseng le liprofaele tsa ho cheka tse fumanoeng nakong ea ho cheka.

(b) Likhothaletso tse akaretsang tsaLisebelisoa tsa PDC: Hangata,Likotoana tsa PDCli loketse libopeho tse bonolo ho isa bohareng.

• Bakeng sa libopeho tse bonolo tse nang le polasetiki e phahameng, sebelisa likotoana tse nang le bophara bo boholoPDCli-cutters le ponts'o ea li-highcutter ho matlafatsa ts'ebetso ea ho pshatla mafika.
• Bakeng sa libopeho tse thata tse mahareng tse nang le polasetiki e tlase, khetha likotoana tse nang le li-cutters tsa PDC tsa bophara bo nyane le ho pepeseha ha tlase ho thibela ho robeha ha sehahi le ho lelefatsa bophelo ba lisebelisoa.

(c) Ho Ntlafatsa Mekhahlelo ea ho Sebetsa ho Thehiloe ho Sebopeho sa Bit le Maemo a Tlhophiso: Lokisa li-parameters-tse kang WOB, RPM, le matla a hydraulic-ho itšetlehile ka sebopeho sa bit le maemo a sebopeho, 'me u netefatse hore li lula li le ka har'a mekhahlelo e khothalletsoang.

(d). Khetho ea Mokhoa ka Botebo ba Seliba le Sebopeho:

• Bakeng sa libopeho tse tebileng, kopanya likotoana tsa PDC tse nang le li-motor tse tlase ho phahamisa bokhoni bo phahameng ba RPM.
• Bakeng sa lits'ebetso tse tebileng tse mahareng, tse bophara bo boholo, eketsa WOB le ho fokotsa RPM ka moo ho loketseng ho ntlafatsa ts'ebetso ea ho cheka.