Izinto Ezithinta Ikhwalithi Nesivinini Sokubhola

1. Njengoba ijubane lokubhola lokumba elihlanganisiwe liphindwe kabili kunelegiya II le-drilling rig, futhi cishe liphindwe kane kunelegiya I, kulula ukukhulisa kakhulu i-ROP.

I-2.Ijubane eliphezulu lokujikeleza lokumba i-compound lifanele izici zokusika ze-PDC bit ekubunjweni kwe-shear.

3.I-Wellbore trajectory ibushelelezi. Ukuhlanganisa ukubhola okuqondisayo kanye nokubhola kokuslayida ukuze kushintshwe isikhawu, kulula ukulawula i-angle ye-dogleg nokuqinisekisa ukuphepha kwe-downhole.

I-4.Isakhiwo samathuluzi okumba senziwe lula ngempumelelo. Ngesikhathi sokumba okuhlanganisiwe, ingcindezi yokumba ngokuvamile i-<100-120kN, futhi izidingo zokubhoboza zingaqedwa ngamakholomu okubhola ambalwa noma angekho, futhi amathuba okunamathela ancipha kakhulu.

5. I-PDC drill bit esebenza kahle kakhulu isebenzisana nethuluzi lokumba amandla lokumba imithombo, egwema ukwehluleka kwangaphambi kwesikhathi kokuthwala ikhoni ngesivinini esikhulu futhi ingabangeli izingozi zokulahleka kwekhoni.

Umthelela Wezinhlaka Zokubhoboza Kusivinini Sekhwalithi Yokubhola

Phakathi nenqubo yokumba, umthelela wemingcele yokumba phakathi kwezinto ezilawulekayo ejubaneni lokumba awukwazi ukushaywa indiva, njengokuthi: uhlobo lwebhithi, ububanzi be-nozzle ye-bit, amandla amancane wamanzi, ukucindezela okuncane, isivinini, ukucindezela kwepompo, ukufuduka, njll. esimweni sezimo ezithile zenhloso, i-ROP ivame ukwanda ngokulawula ukucindezela kokumba, isivinini sokujikeleza, ukucindezela kwepompo kanye nokufuduka.

Umthelela Wokubhoboza Uketshezi Kukhwalithi Nesivinini Sokubhola

Uketshezi lokumba luyigazi lokubhoboza, ngakho-ke ukusebenza koketshezi lokumba kubaluleke kakhulu ekubholeni. Izici eziyinhloko ezithinta i-ROP yi-viscosity yoketshezi lokumba, ukuminyana koketshezi lokumba kanye nokuqukethwe okuqinile oketshezini lokumba. Uma kubhekwa iqiniso lokuthi i-ejenti yokwelapha esetshenziswa ohlelweni olukhona loketshezi olujulile lucebile ngama-ion e-chromium namanye ama-ion ensimbi esindayo anomthelela omkhulu endaweni ezungezile, kunconywa ukuba kufundwe futhi kufakwe uketshezi olumba kahle oluhambisana nemvelo. uhlelo lokuthuthukisa i-silicate drilling fluid system esetshenziswa njengamanje ebangeni elincane e-China , Uhlelo lokumba oluyisisekelo lwe-Synthetic ukwenza uchungechunge olujulile lokuvikela imvelo lokumba uketshezi olufanele izimo ze-geological kanye nobunjiniyela zendawo ngayinye yokumba.