Imoto yokuFuduka eNgcono eDownhole (PDM Drill)

I-drill ye-PDM (Positive Displacement Motor) yimoto yokuhambisa umoya engaphantsi komhlaba esebenzisa ulwelo lokubhola njengamandla okuguqula amandla e-hydraulic abe ngamandla oomatshini. Xa udaka olupompelwa yipompo yodaka luhamba nge-ivalvu yokudlulakwaye ingena kwimoto, umahluko othile woxinzelelo wenziwa phakathi kokungena kunye nokuphuma kwemoto. Oku kutyhala i-rotor ukuba ijikeleze i-axis ye-stator, idlulise isantya kunye ne-torque kwi-universal joint kunye ne-drive shaft ukuya kwi-drill bit, ngaloo ndlela ivumela imisebenzi yokugrumba.

Izinto eziphambili

I-PDM drill ibandakanya ikakhulu iindibano ezine ezinkulu: i-bypass valve,injini yodaka, i-universal joint, kunye ne-drive shaft.

I-screw motor yeyona nto iphambili kwesi sixhobo. Ngokwendlela yokusebenza kunye nohlalutyo lwethiyori, ukuze imoto isebenze kakuhle, ukuhla koxinzelelo kwinqanaba ngalinye lemoto akufuneki kudlule kwi-0.8 MPa. Ngaphandle koko, imoto inokuvuza, nto leyo ebangela ukwehla ngokukhawuleza kwesantya okanye ukuma ngokupheleleyo, nto leyo enokonakalisa imoto.

Intambo enye yemoto ichazwa njengenqanaba elinye. Izinga lokuhamba kodaka elisetyenziswa kwindawo kufuneka lihlale ngaphakathi koluhlu olucetyiswayo; kungenjalo, liya kuchaphazela ukusebenza kakuhle kwemoto kwaye linokunyusa ukuguguleka. Iiparamitha zokusebenza kwemoto yesikrufu zezona parameters ziphambili zokusebenza kwePDM drill.

I-torque yokukhupha injini ngokwethiyori ihambelana nokuhla koxinzelelo, ngelixa isantya sokukhupha sihambelana nesantya sokuhamba kodaka olungenayo. Njengoko umthwalo usanda, isantya sokujikeleza kwesixhobo siyancipha. Ke ngoko, ngokulawula ukufundwa kwegeyiji yoxinzelelo kunye nesantya sokuhamba kwepompo kumphezulu, i-torque yokungena kunye nesantya sokujikeleza zinokulawulwa.

Icandelo leValve yokuDlula

Ivalvu ye-bypass yenziwe ngumzimba wevalvu, isingxobo sevalvu, i-valve spool, i-spring, kunye nezinye izinto. Phantsi kwesenzo soxinzelelo, i-valve spool ityibilika ngaphakathi kwesingxobo sevalvu. Ukuhamba kwe-valve spool kutshintsha indlela yokuhamba kolwelo, nto leyo enokuyibeka i-bypass valve kwimeko ye-bypass okanye ye-closed.

Ngexesha lokungena nokuphuma, iindlela ezikwisilingi sevalvu kunye nomzimba wevalvu azivalwanga, ngoko ke ivalvu ye-bypass ikwimeko ye-bypass. Oku kuvumela udaka oluvela kwintambo yokubhola ukuba ludlule i-motor luze lungene kwi-annulus.

Xa isantya sokuhamba kodaka kunye noxinzelelo lufikelela kumaxabiso amiselweyo, i-valve spool iyehla, ivale izibuko ze-bypass valve. Emva koko, udaka luhamba ngemoto, luguqula amandla e-hydraulic abe ngamandla oomatshini.

Xa isantya sokuhamba kodaka siphantsi kakhulu okanye ipompo imisiwe, ispring ityhala ivalvu inyuke, ivule ii-bypass ports ize ibeke ivalvu kwimeko ye-bypass.

Injini (Icandelo lamandla)

Injini ine-stator kunye ne-rotor. I-stator yenziwe ngokufaka i-raber liner kwi-injection ibe yityhubhu yentsimbi. I-bore yayo yangaphakathi inemilo ejikelezayo enemilinganiselo ethile yejometri. I-rotor yintonga yesikrufu enomphezulu oqinileyo.

I-rotor kunye ne-stator mesh enye kwenye. Umahluko kwiileyidi zazo udala imingxunya evaliweyo, enceda ukuguqulwa kwamandla.

Iihelices ze-motor rotor zinokuba yi-single-lobe okanye i-multi-lobe. Okukhona ii-rotor lobes zincinci, kokukhona isantya siphezulu kwaye i-torque iphantsi; okukhona ii-lobes zininzi, kokukhona isantya siphantsi kwaye i-torque iphezulu.

I-Universal Joint

Umsebenzi we-universal joint kukuguqula intshukumo yeplanethi yemoto ibe yi-fixed-axis rotation ye-drive shaft kunye nokudlulisela i-torque kunye nesantya esiveliswa yimoto kwi-drive shaft kwaye kamva kwi-drill bit. Uhlobo lwe-flexible shaft ye-universal joint lusetyenziswa rhoqo.

Ishaft yokuqhuba

Umsebenzi we-drive shaft kukudlulisela amandla ajikelezayo emoto kwi-drill bit ngelixa umelana nemithwalo ye-axial kunye ne-radial eveliswa bubunzima obukwi-bit. Ke ngoko, i-drive shaft ifuna ubunzima obukhulu, ukumelana nokuguguleka, kunye nobomi benkonzo ende. Ukucima ubushushu kunokwandisa kakhulu ubomi benkonzo ye-drive shaft.

Unxibelelwano: Jessie Zhou

Ifowuni/I-Whatsapp:+0086-18109206861

Email: energy@landrilltools.com