Zithini izinto ezisetyenziswa kwiPDM Drill (Progressing Cavity Drill)?

I-PDM Drill yindlela yokubhola amandla e-downhole ephumayo esebenzisa ulwelo lokubhola njengamandla okuguqula amandla oxinzelelo lolwelo abe ngamandla oomatshini.

Izinto eziyinxalenye

I-PDM Drill ikakhulu ineendibano ezine eziphambili: i-bypass valve, i-hydraulic motor, i-cardan shaft, kunye ne-drive shaft. I-screw motor (i-hydraulic motor) yeyona nto iphambili kwi-drill.

1. Indibano yeValve yeDrawpass

Ivalvu ye-bypass yenziwe ngomzimba wevalvu, isingxobo sevalvu, umongo wevalvu, kunye nentwasahlobo. Phantsi koxinzelelo, umongo wevalvu utyibilika ngaphakathi kwesingxobo sevalvu, kwaye intshukumo yomongo wevalvu itshintsha indlela yokuhamba kolwelo—inika ivalvu ye-bypass iimeko ezimbini: i-bypass kunye ne-closed.

Ngexesha lokungena nokuphuma emngxunyeni: Imingxunya edlulayo yesingxobo sevalvu kunye nomzimba wevalvu ayivalwanga, ngoko ke ivalvu edlulayo ikwimeko yokudlula, ivumela udaka olukwintambo yokubhola ukuba ludlule imotor luze lungene kwi-annulus.

Xa isantya sokuhamba kodaka kunye noxinzelelo lufikelela kumaxabiso amiselweyo: I-valve core iyehla ukuze ivale umngxuma wevalvu edlulayo. Ngeli xesha, udaka luhamba ngemoto, luguqula amandla oxinzelelo abe ngamandla oomatshini.

Xa isantya sokuhamba kodaka siphantsi kakhulu okanye ipompo imisiwe: Ispringi sityhala umongo wevalvu phezulu, kwaye umngxuma wevalvu ye-bypass uyavulwa—ukubuyisela ivalvu kwimeko ye-bypass.

2. Injini yeHydraulic

I-hydraulic motor ine-stator kunye ne-rotor. I-stator yenziwa ngokufaka i-rubber bushing eludongeni lwangaphakathi lombhobho wentsimbi, kwaye umngxuma wayo wangaphakathi yi-helix eneempawu ezithile zejometri. I-rotor yintonga yesikrufu enomgquba oqinileyo. I-rotor kunye ne-stator mesh zidibene, kwaye umgodi ovaliweyo we-helical wenziwa ngumahluko kwiileya zazo ekuguquleni amandla ngokupheleleyo.

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

Ukuqala okumbalwa kwe-rotor kubangela isantya esiphezulu sokujikeleza kunye ne-torque ephantsi;

Ukuqala okungakumbi kwerotor kubangela isantya esiphantsi sokujikeleza kunye ne-torque ephezulu.

3. I-Cardan Shaft

Umsebenzi we-cardan shaft kukuguqula intshukumo yeplanethi yemoto ibe yi-fixed-axis rotation ye-drive shaft, kwaye idlulisele i-torque kunye nesantya sokujikeleza esiveliswa yimoto kwi-drive shaft (kwaye ekugqibeleni iye kwi-drill bit). Uninzi lwee-cardan shafts zisebenzisa uyilo lwe-shaft oluguquguqukayo.

4. Umgodi wokuqhuba

I-drive shaft inoxanduva lokudlulisa amandla okujikeleza emoto ukuya kwi-drill bit, ngelixa ithwala imithwalo ye-axial kunye ne-radial eveliswa bubunzima kwi-bit (WOB). Ke ngoko, i-drive shaft ifuna ubunzima obuphezulu, ukumelana nokuguguleka, kunye nobomi benkonzo ende. Kwimeko enjalo, ukucima unyango lobushushu kunokwandisa kakhulu ubomi benkonzo ye-drive shaft.

Uqhagamshelwano: Bree Zhang
Ifowuni/I-Whatsapp: +0086-183 9206 9193
Email: landrill@landrilltools.com
Iwebhu: www.landrilltools.com