Isitsha se-Downhole / Izimbiza Zokubhoboza (Imishini / I-Hydraulic)
1. [Ukubhoboza]
Umshini osetshenziswa imbobo yaphansi ukuze ilethe umthwalo wokushayisana kwenye ingxenye yomgodi, ikakhulukazi uma leyo ngxenye ibambekile.Kunezinhlobo ezimbili eziyinhloko, izimbiza ze-hydraulic kanye nemishini.Nakuba imiklamo yabo ehlukene ihluke kakhulu, ukusebenza kwabo kuyafana.Amandla agcinwa ku-drillstring futhi ngokuzumayo adedelwe yimbiza lapho ivutha.Isimiso siyefana nesombazi osebenzisa isando.Amandla e-kinetic agcinwa esando lapho sijikijelwa, futhi ngokuzumayo adedelwa esipikili nasebhodini lapho isando sishaya isipikili.Izimbiza zingaklanywa ukushaya phezulu, phansi, noma kokubili.Endabeni yokugxuma ngenhla komgodi obambeke phansi, umshini wokubhoboza udonsa kancane kancane umshini wokubhoboza kodwa i-BHA ayinyakazi.Njengoba ingaphezulu le-drillstring liya phezulu, lokhu kusho ukuthi i-drillstring ngokwayo iyanwebeka futhi igcina amandla.Lapho lezi zimbiza zifika lapho zidubula khona, ngokungazelelwe zivumela ingxenye eyodwa yembiza ukuba inyakaze ngokuhambisana nomzuzwana, idonswa ngokushesha ngendlela efanayo naleyo enyakazayo ingxenye yesiphethu esilulekile lapho idedelwa.Ngemva kwamasentimitha ambalwa okunyakaza, lesi sigaba esinyakazayo sishaya ihlombe lensimbi, sinikeze umthwalo onomthelela.Ngaphezu kwezinguqulo zemishini kanye ne-hydraulic, izimbiza zihlukaniswa njengezimbiza zokumba noma izimbiza zokudoba.Ukusebenza kwalezi zinhlobo ezimbili kuyafana, futhi zombili ziletha cishe umthelela ofanayo, kodwa imbiza yokumba yakhiwe ngendlela yokuthi ikwazi ukumelana kangcono nokulayisha okujikelezayo nokudlidlizayo okuhlobene nokubhola.
2. [Iziphetho Ezinhle]
Ithuluzi lomgodi ophansi elisetshenziselwa ukudlulisa ukushaywa okukhulu noma umthwalo womthelela ekuhlanganiseni kwethuluzi le-downhole.Okuvame ukusetshenziswa emisebenzini yokudoba ukuze kukhululwe izinto ezibhajwe, izimbiza zitholakala ngebanga losayizi namandla okuletha imithwalo enomthelela phezulu noma phansi.Eminye imihlangano yamathuluzi e-slickline isebenzisa izimbiza ukusebenzisa amathuluzi aqukethe izikhonkwane zokugunda noma amaphrofayili entwasahlobo endleleni yabo yokusebenza.
3. [Ukusebenza Kahle Nokungenelela]
Ithuluzi le-downhole elisetshenziselwa ukuletha amandla okuthonya kuyunithi yezinhlamvu zamathuluzi, ngokuvamile ukusebenzisa amathuluzi omgodi noma ukukhipha iyunithi yezinhlamvu yethuluzi elibambekile.Izimbiza zemiklamo ehlukene nezimiso zokusebenza zivame ukufakwa ku-slickline, amashubhu ahlanganisiwe kanye nezintambo zamathuluzi okusebenza.Izimbiza ezilula ze-slickline zihlanganisa umhlangano ovumela ukuhamba kwamahhala ngaphakathi kwethuluzi ukuze uthole umfutho womthelela owenzeka ekupheleni kwe-stroke.Amabhodwe amakhulu, ayinkimbinkimbi kakhudlwana amashubhu asongekile noma amayunithi ezinhlamvu ahlanganisa uhambo noma indlela yokudubula evimbela imbiza ukuthi isebenze kuze kube yilapho kusetshenziswa ukushuba okufiswayo kuyunithi yezinhlamvu, ngaleyo ndlela kuthuthukisa umthelela olethiwe.Izimbiza zakhelwe ukuthi zisethwe kabusha ngokukhohlisa izintambo ezilula futhi ziyakwazi ukusebenza ngokuphindaphindiwe noma ukudubula ngaphambi kokuba zitholwe emthonjeni.
Ithebula 2Imithwalo Yokubhoboza Yesitsha Sokubhobozaiyunithi:KN
| imodeli | umthwalo we-jaring okhuphukayo | Up jarring ukuvula amandla | isitshalo sangaphambili umthwalo we-jaring ophansi | umthwalo we-hydraulic ukuhlola amandla okudonsa | Isikhathi seUkubambezeleka kweHydraulic |
| I-JYQ121Ⅱ | 250 | 200±25 | 120±25 | 220±10 | 30～60 |
| I-JYQ140 | 450 | 250±25 | 150±25 | 300±10 | 45～90 |
| I-JYQ146 | 450 | 250±25 | 150±25 | 300±10 | 45～90 |
| I-JYQ159 | 600 | 330±25 | 190±25 | 370±10 | 45～90 |
| I-JYQ165 | 600 | 330±25 | 220±25 | 400±10 | 45～90 |
| I-JYQ178 | 700 | 330±25 | 220±25 | 400±10 | 45～90 |
| I-JYQ197 | 800 | 400±25 | 250±25 | 440±10 | 45～90 |
| I-JYQ203 | 800 | 400±25 | 250±25 | 440±10 | 45～90 |
| I-JYQ241 | 1400 | 460±25 | 260±25 | 480±10 | 60～120 |
5. IMICIMBI
| into | I-JYQ121 | I-JYQ140 | I-JYQ146 | I-JYQ159 | I-JYQ165 |
| ODin | 43/4 | 51/2 | 53/4 | 61/4 | 61/2 |
| I-ID in | 2 | 21/4 | 21/4 | 21/4 | 21/4 |
| Cukuhlangana I-API | NC38 | NC38 | NC38 | NC46 | NC50 |
| up jar strokein | 9 | 9 | 9 | 9 | 9 |
| ukushaya kwembiza phansiin | 6 | 6 | 6 | 6 | 6 |
Cqhubeka
| into | I-JYQ178 | I-JYQ197 | I-JYQ203 | I-JYQ241 |
| ODin | 7 | 7 3/4 | 8 | 9 1/2 |
| I-ID in | 2 3/4 | 3 | 23/4 | 3 |
| Cukuhlangana I-API | NC50 | 6 5/8REG | 65/8REG | 7 5/8REG |
| up jar strokein | 9 | 9 | 9 | 9 |
| ukushaya kwembiza phansiin | 6 | 6 | 6 | 6 |
| i-torque esebenzayoft-Ibs | 22000 | 30000 | 36000 | 50000 |
| ubuningi.umthwalo oqinilelb | 540000 | 670000 | 670000 | 1200000 |
| Mimbazo.phakamisa imbizaIb | 180000 | 224000 | 224000 | 315000 |
| Mimbazo.umthwalo wembiza phansi Ib | 90000 | 100000 | 100000 | 112000 |
| ubude bubonkemm | 5256 | 5096 | 5095 | 5300 |
| ipistonindawomm2 | 5102 | 8796 | 9170 | 17192 |
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