Izici Ezithinta Ikhwalithi Yokubhoboza Nesivinini

1. Njengoba ijubane le-drill bit lokubhoboza elihlanganisiwe liphindwe kabili kunegiya II le-rig yokubhoboza, futhi cishe liphindwe kane kunegiya I, kulula ukwandisa kakhulu i-ROP.

2. Ijubane eliphezulu lokujikeleza kokubhoboza okuhlanganisiwe lifanelekela izici zokusika ze-PDC bit ekwakhekeni kwe-shear.

3. Indlela yokuqondisa i-Wellbore ibushelelezi. Ukuhlanganisa ukubhoboza okuqondiswe ngqo kanye nokubhoboza okushelelayo ukuze kushintshwe izikhawu, kulula ukulawula i-engeli ye-dogleg nokuqinisekisa ukuphepha kwe-downhole.

4. Isakhiwo samathuluzi okubhoboza senziwe lula ngempumelelo. Ngesikhathi sokubhoboza okuhlanganisiwe, ingcindezi yokubhoboza ngokuvamile ingaphansi kuka-100-120kN, futhi izidingo zokubhoboza zingaqedwa ngamakhola okubhoboza ambalwa noma angekho nhlobo, futhi amathuba okunamathela ancishiswa kakhulu.

5. I-PDC drill bit esebenza kahle kakhulu ibambisana nethuluzi lokubhoboza lamandla ukubhoboza imithombo, okugwema ukwehluleka kwasekuqaleni kwe-cone bearing ngesivinini esikhulu futhi kungabangeli izingozi zokulahlekelwa yi-cone.

Ithonya Lamapharamitha Okubhoboza Esivinini Sekhwalithi Yokubhoboza

Ngesikhathi senqubo yokubhoboza, ithonya lamapharamitha okubhoboza phakathi kwezici ezingalawuleka esivinini sokubhoboza alinakwa, njenge: uhlobo lwebhithi, ububanzi be-nozzle yebhithi, amandla amanzi ebhithi, ingcindezi yebhithi, isivinini, ingcindezi yephampu, ukufuduka, njll. Uma kunezimo ezithile eziqondile, i-ROP ivame ukwanda ngokulawula ingcindezi yokubhoboza, isivinini sokujikeleza, ingcindezi yephampu kanye nokufuduka.

Ithonya Loketshezi Lokubhoboza Ekhwalithini Nasejubaneni Lokubhoboza

Uketshezi lokubhoboza luyigazi lokubhoboza, ngakho-ke ukusebenza koketshezi lokubhoboza kubaluleke kakhulu ekubhobozeni. Izici eziyinhloko ezithinta i-ROP ubulukhuni boketshezi lokubhoboza, ubuningi boketshezi lokubhoboza kanye nokuqukethwe okuqinile koketshezi lokubhoboza. Ngenxa yokuthi i-ejenti yokwelapha esetshenziswa ohlelweni loketshezi olujulile olukhona icebile ngama-ion e-chromium namanye ama-ion ensimbi esindayo anomthelela omkhulu emvelweni, kunconywa ukuthi kufundwe futhi kusetshenziswe uhlelo loketshezi lokubhoboza olujulile olunobungani nemvelo ukuze kuthuthukiswe uhlelo loketshezi lokubhoboza olusebenzisa i-silicate olusetshenziswa njengamanje endaweni encane eShayina. Uhlelo lokubhoboza oluyisisekelo lokwenziwa ukuze kwakheke uchungechunge loketshezi lokubhoboza oluvikela imvelo olufanele izimo ze-geological kanye nobunjiniyela bendawo ngayinye yokubhoboza.