Izinqubo zokusebenza ze-Roller Cone Bit.

1. Ukuhlola Ngaphambi Kokuthunyelwa

1) Ukuhlolwa Okubonwayo kanye Nemibhalo:

- Kala i- i-drill bit ububanzi.

- Bheka umonakalo ekuxhumekeni okuluchungechunge.

- Qinisekisa ukuthi amazinyo nezimvu zamanzi ziqinile.

- Qinisekisa ukuthi ama-roller cones awashayisani.

- Hlola ukuqhekeka noma ukonakala kwe-porosity seams yokushisela.

2) Ukufakwa kweNozzle:

- Qinisekisa ukuhlanzeka komlomo nezindlu ngesikhathi sokufakwa. Ukushaya ngesando kwenqatshelwe ngokuphelele ukugwema ukulimaza imbobo nezindandatho zokuvala.

2. Ukuphatha kancane

1) Sebenzisa ngendlela efanelei-drill bitizixhumi namathuluzi okuphatha ukuvimbela ukulimala emicu, imibhobho, nomzimba omncane.

2) Vimbela amathuluzi ukuthi angangeni emgodini ngesikhathi sokuphatha.

3) Faka i-lubricant yentambo.

4) Landela amapharamitha we-torque anconyiwe ngesikhathi somhlangano:

- 17 1/2" ibhithi: I-Roller Cone: 46.1—54.2 KN·m; PDC: 65.5—71.9 KN·m.

- 12 1/4" ibhithi: I-Roller Cone: 37.9—43.3 KN·m; PDC: 50.3—57.5 KN·m.

-8 1/2" kancane: I-Roller Cone: 16.3—21.7 KN·m; I-PDC: 17—26.4 KN·m.

3. Ukubhoboza kanye Nokuvulwa Kwemigodi

1) Lawula isivinini sokwehlisa ngesivimbeli sokuvuthela, ikhanda le-casing, izingxenye ezincishisiwe zobubanzi, amahlombe, nezicathulo ze-casing.

2) Vula imbobo ngobumnene ngokusebenzisa izigaba ezincishisiwe zobubanzi, ngokuqaphela ngokukhethekile lapho usebenzisa izingcezu ze-PDC; ukumpompa kumele kuqale ngaphambi kokuvula imbobo.

3) Qinisekisa ukwehla okushelelayo ukuze ugweme ama-spikes okucindezela.

4) Ijoyinti elilodwa lokugcina noma isitendi kufanele sibe nezinga lokugeleza okuphezulu ukuze uvule umgodi phansi komthombo.

3. Ukuhlola Okusezansi Kahle

1) Njengoba usondela phansi komthombo, qapha ingcindezi yokubhoboza kanye ne-torque; ukwanda kubonisa ukuthintana nesihlabathi esingaphansi noma esinqwabelene.

I-2) Uma isihlabathi sikhona, phakamisa intambo yokubhoboza futhi ujikeleze ngesilinganiso sokugeleza okuphezulu ukuze uqinisekise ukuhlanzwa phansi.

3) Ngemva kokuhlanza, hambisa intambo yokubhoboza phezulu naphansi.

4) Ngokubhola okungenamandla, sebenzisa i-8 1/2" bit ku-17 KN kanye ne-12 1/4" ku-25 KN, ngesivinini esingu-40-60 RPM.

5) Ngokubhola okunamandla, sebenzisa i-8 1/2" bit ku-17 KN kanye ne-12 1/4" ku-25 KN ngejubane eliphansi kakhulu elinokwenzeka.

5. Ukubhoboza Ngosimende Plugs kanye Casing Izesekeli

1) Qhubeka uphakamisa futhi wehlise intambo yokubhoboza ngesikhathi sokujikeleza nokujikeleza ukuze uhlanze ibhithi.

2) Lawula ingcindezi yokubhoboza ukuze ugweme ukulimala kokusika amazinyo nokufaka izimpawu.

3) Gada ingcindezi yephampu ukuze uvimbele ukuvaleka kwemibhobho.

4) Lungisa isivinini sokujikeleza uma kukhona izinguquko eziphawulekayo ekubholeni noma kwi-torque.

5) Sebenzisa ingcindezi yokubhoboza ephansi kanye nokuzungeza kancane ukuze uthole i-torque ezinzile: ukubhola okunamandla kufanele kube nesilinganiso sokugeleza esifanele; ukumba okungasebenzisi amandla kufanele kusebenzise amazinga okugeleza aphezulu.

6) Phakamisa futhi uvule imbobo njalo ngamamitha angu-4-5 ngenkathi ubhoboza ngepulaki likasimende, wenze njalo izikhathi ezingu-2-3, futhi ugeze umthombo ngokugeleza okuphezulu amasonto angu-1-2 njalo ngamamitha angu-25-30 ukuze uqinisekise ukujikeleza okuphelele kwezinsalela zikasimende phezulu.

6. Ukubunjwa kahle Kwezansi

1) Sebenzisa ingcindezi yokubhoboza ephansi, ukuzungeza kancane, izinga lokugeleza okuphezulu, netorque ephansi.

2) Ukubunjwa phansi komthombo kuncike ohlotsheni lwebhithi kanye nenhlanganisela yamathuluzi.

3) Kuma-roller cone bits, sebenzisa ku-40-60 RPM kanye nokucindezela kokubhoboza okungu-35 KN ku-17 1/2", 24 KN ku-12 1/4", kanye no-17 KN ku-8 1/2", ukugcina okungenani imizuzu engu-30 yokubhoboza.

4) NgobaIdatha ye-PDC, sebenza ngaphansi kwamathani angu-2 wokucindezela kokubhoboza ku-60-100 RPM, ukwandisa ingcindezi kanye nesivinini sokulungisa ngemva kokubhoboza okungenani amamitha angu-1-1.5.

7. Ukumba Ukuhlola Ukunquma Amapharamitha Alungile

1) Ukumba isivivinyo kuyindlela ephumelelayo yokunquma inhlanganisela efanele yokucindezela kokubhola kanye nesivinini sokuzungeza ukuze kuzuzwe amazinga aphezulu okumba ngemishini.

2) Yenza uhlolo lokumba lapho kukhona izinguquko ekubunjweni, izinga lokumba ngomshini, i-torque, abasebenzi, noma imingcele yokusebenza efana nezakhiwo zodaka nama-hydraulics.

3) Qala ukumba isilingo ngesivinini esiphansi, ngomfutho wokubhoboza usethelwe kubukhulu obunconyelwe ibhithi.

4) Uma amazinga aphezulu wokusebenza efinyeleleka kuzo zonke izinhlanganisela ze-drill ezihlukene nezinhlanganisela zesivinini, khetha inhlanganisela yesivinini esingeqisi esiphansi kunazo zonke ukuze unwebe ukuphila kancane.

I-5) Ingcindezi yokubhoboza efanele kanye nesivinini kufanele kuqondiswe amaphoyinti okugcina alayini kanye nemikhawulo ye-torque.