Yiziphi izingxenye ze-PDM Drill (Progressing Cavity Drill)?

I-PDM Drill iyi-drill yamandla okudonsa phansi egeleza kahle esebenzisa uketshezi lokubhoboza njengamandla okuguqula amandla okucindezela uketshezi abe amandla omshini.

Izingxenye

I-PDM Drill ihlanganisa ikakhulukazi izinhlaka ezine ezinkulu: i-bypass valve, i-hydraulic motor, i-cardan shaft, kanye ne-drive shaft. I-screw motor (i-hydraulic motor) iyisici esiyinhloko se-drill.

1. Umhlangano Wevalvu Yokudlula

I-valve ye-bypass yakhiwe ngomzimba we-valve, isikhongozeli se-valve, umongo we-valve, kanye nesipilingi. Ngaphansi kwengcindezi, umongo we-valve ungena ngaphakathi kwesikhongozeli se-valve, futhi ukunyakaza komongo we-valve kushintsha indlela yokugeleza koketshezi—okunikeza i-bypass valve izimo ezimbili: i-bypass kanye ne-closed.

Ngesikhathi sokungena nokuphuma emgodini: Izimbobo ezidlulayo zesikhafu se-valve nomzimba we-valve azivaliwe, ngakho-ke i-valve ye-bypass isesimweni se-bypass, okuvumela udaka olusentanjeni yokubhoboza ukuthi ludlule imoto bese lungena ku-annulus.

Uma izinga lokugeleza kodaka kanye nokucindezela kufinyelela amanani ajwayelekile amisiwe: Ingaphakathi levalvu liyehla ukuze livale imbobo yevalvu edlulayo. Ngalesi sikhathi, udaka lugeleza ngenjini, luguqula amandla okucindezela abe amandla omshini.

Uma izinga lokugeleza kodaka liphansi kakhulu noma ipompo ivaliwe: Isipilingi sisunduza umongo wevalvu phezulu, bese kuvuleka imbobo yevalvu yokudlula—okubuyisela ivalvu esimweni sokudlula.

2. Injini ye-Hydraulic

Injini ye-hydraulic iqukethe i-stator kanye ne-rotor. I-stator ikhiqizwa ngokufaka i-rubber bushing odongeni lwangaphakathi lwepayipi lensimbi, kanti imbobo yayo yangaphakathi iyi-helix enemingcele ethile yejometri. I-rotor iyinduku yesikulufu ene-coating eqinile. I-rotor kanye ne-stator mesh zihlangene, futhi umgodi ovalwe nge-helical wakhiwa umehluko kuma-lead azo ekuguqulweni kwamandla okuphelele.

I-helix ye-motor rotor ingaba yi-single-start noma i-multi-start:

Ukuqala okumbalwa kwe-rotor kuholela ekushiseni okuphezulu kokujikeleza kanye ne-torque ephansi;

Ukuqala okwengeziwe kwe-rotor kuholela ekushiseni kwejubane lokujikeleza kanye ne-torque ephezulu.

3. Umgodi weCardan

Umsebenzi we-cardan shaft ukuguqula ukunyakaza kweplanethi kwemoto kube ukujikeleza okuqondile kwe-drive shaft, nokudlulisa i-torque kanye nesivinini sokujikeleza esikhiqizwa yimoto ku-drive shaft (futhi ekugcineni ku-drill bit). Ama-cardan shaft amaningi asebenzisa umklamo we-shaft oguquguqukayo.

4. Umgodi Wokushayela

I-drive shaft inesibopho sokudlulisa amandla okujikeleza emoto ku-drill bit, ngenkathi ithwala imithwalo ye-axial kanye ne-radial ekhiqizwa yisisindo ku-bit (WOB). Ngakho-ke, i-drive shaft idinga ubulukhuni obuphezulu, ukumelana nokuguguleka, kanye nokuphila isikhathi eside kwenkonzo. Kulokhu, ukucima ukwelashwa kokushisa kungandisa kakhulu impilo yenkonzo ye-drive shaft.

Xhumana: UBree Zhang
Ucingo/I-Whatsapp: +0086-183 9206 9193
Email: landrill@landrilltools.com
Iwebhu: www.landrilltools.com