Nhasi yakajairika "kutenga zvisizvo / mhanya zvisizvo / gadzirisa gare gare" musoro pane saiti:Casingvs. Slotted Casing Extension vs. Perforated Pipe-musiyano chaiwo ndeupi?
Iwe wakambonzwa izvi kare:
- Ingori pombi ine mazaru, handiti?
- Slot nemaburi zvese zvinopinza mvura-imwe inoshanda.
- Ngatingo mhanyisai slotted casing yekuwedzera ipapo uye tichengetedze nguva gare gare.
Zvinonzwika zvine musoro, asi apa ndipo chaipo panotangira kukanganisa kunodhura. Izvi zvitatu zvinogona kutaridzika zvakafanana, asi zvakagadzirirwa mabasa akasiyana. Zvitore sechinhu chimwe chete uye unogona kupedzisira wava nejecha, plugging, kumhanya-mune nyaya, kana magwaro anotyisa ekutenga zvinhu uye kugamuchirwa zvisingaenderani nezvinodiwa neprojekti.
Ngatijekesei kuti chimwe nechimwe ndechei
- Casing: iyo "musana" wetsime. Tsigiro yemaitiro, kumanikidza kutendeseka, zonal isolation, uye nheyo yekusimbisa. Haina kugadzirwa zvakanyanya sechikamu chekupinda.
- Slotted Casing Extension (Slotted Liner/Extension): nzira inopinda nejecha shoma. Izvo zvakakosha zvakasiyana-siyana slot upamhi uye slot pattern.
- Perforated Pipe (Perforated Liner): nzira inopinda nemumakomba. Makiyi akasiyana dhayamita yegomba, gomba pitch/pattern, uye nzvimbo yakashama; jecha kudzora kazhinji rinotsamira pane yakazara kupedzisa zano, kwete iyo perforated pombi chete.
Tafura Inopa Mhedziso: Zvinogadziriswa Mumwe nemumwe
| Item | Casing | Slotted Casing Extension (Slotted Liner/Extension) | Perforated Pipe (Perforated Liner) |
|---|---|---|---|
| Primary function | Wellbore dhizaini yerutsigiro, zonal kuparadzaniswa, kudzvanywa kwemukati, simende hwaro | Inopa kupinda mukati uchishandisa slot size "kubata" rimwe jecha (shoma jecha kutonga) | Inopa inflow kuburikidza nemakomba; inogona kurerutsa kupedza kana kugonesa kupinda mukati |
| Nzvimbo chaiyo | Zvizere zvakanaka zvikamu / casing tambo nepakati | Inowanzo shandiswa kuyambuka openhole/barefoot intervals se liner/extension | Inoshandiswa pane yakatarwa nguva dzekupinda; dzimwe nguva inoonekwa seimwe chikamu chekupinda |
| Inflow control | Kazhinji zvinoenderana neanotevera perforating / kupedza maturusi | Kufurirwa nehupamhi hwe slot + slot pateni + nzvimbo yakavhurika | Kufurirwa negomba dhayamita + gomba pitch/patani + nzvimbo yakavhurika |
| Kudzora kwejecha | Hapana chega | Limited; zvinoenderana nekufananidza slot hupamhi kune jecha rekugadzira | Kazhinji isina simba pane inotsvedza panzvimbo yakafanana yakavhurika; kazhinji inoda mamwe matanho |
| Ngozi huru | Kuzviparadzanisa nevamwe kutadza / kutendeseka uye nyaya dzekugamuchira | Wrong slot width → plugging kana jecha; slot burrs/edges → mhanya-munyaya uye kupera simba | Dhizaini isina kunaka yegomba → sanding/kukurwa; hole burrs/edges → run-mune nyaya |
| Kupedzisa pfungwa | Kutendeseka uye kugamuchirwa kunosundwa | Inflow + light jecha retention inofambiswa | Inflow nzira dhizaini inofambiswa |
Chinyorwa chakakosha:Mumashandisirwo-pamaburi, zvichitsamira pascreen/chikamu chakatsemuka sejecha chete-chiyero chekudzora chinogona kuva njodzi huru, nekutiannulus/perforations inogona kuzadza nejecha uye kuderedza kubereka; ongorora mukati mehurongwa hwakazara hwekupedzisa.
Sei vese "vachirega mvura ichipinda," asi mhedzisiro yemumunda inosiyana?
1. Nekuti mhando yekuvhura (maburi vs. slots) inoshandura zvinhu zvitatu: plugging vs. sanding sensitivity, hupenyu hwekukukurwa, uye kumhanya-munjodzi.
- Plugging vs. jecha: saizi yekuvhura isiriyo inokonzera kukanganisa kwakapesana
- Slot hupamhi / gomba dhayamita idiki zvakanyanya: yakakwira plugging njodzi, yakanyanya kudonha kudonha, kuderera kwekuita (dzimwe nguva inotanga "zvakanaka" uye inoderedza nekufamba kwenguva).
Yakakura zvakanyanya: njodzi yejecha yakakwirira, kukukurwa kwemvura yakadzika, uye kukuvadzwa kwemavharuvhu / manifolds nemimwe michina.
Slots dzinowanzo kusarudzirwa "light jecha retention" nekuti slot hupamhi hunogona kuita sesefa yekusefa. Asi ichiri "light" jecha control, kwete jecha rakakwana-control system.
2. Kukukurwa kwevhu: mipendero ndiyo nzvimbo dzisina simba
Pamatengo akakwira ane solids uye yakakwira kudhirowa, ese ari maviri slot edge uye gomba edges anogona kunyura. Nzvimbo yekumusoro yakavhurika haisi nani yega. Upenyu hwekukurwa uye kumucheto kwemhando (kubvisa, kupedzisa kupedzisa, kuchenesa) kunofanirwa kuongororwa pamwe chete neiyo inflow dhizaini.
3. Mhanya-munjodzi: zvizhinji "hazvigone kuzvipinza" nyaya dzinobva mukutadza kutonga kwemuchina.
Kana maburrs, deformation, kana kuchenesa zvisina kudzorwa mushure mekutsvedza / kupeta, unogona kuona:
- hang{{0}mapamusoro panguva yekumhanya-mukati
- kudonha/ID kutadza
- local deformation inorambidza anotevera maturusi
Ndicho chikonzero mapurojekiti akanaka haangobvunzi "kuvhura parameters." Vanokumbirawo marekodhi ekugamuchira (drift/ID cheki, mishumo yedimensional) uye kuti kuvhurwa kwakapera sei. Kumapurojekiti eOctal Pipe, zvinhu izvi zvinowanzorongedzwa kare-zviyero zvekuvhura uye marongero, kupedzisa kwemupendero, marekodhi edhifta/dimension, uye mapepa anoenderana{3}}kuti saiti isapedzisire yagadzirisa zvinhu zvinodzivirirwa.
Izvo zvitatu zvinonyanya kusarudzwa kukanganisa kukanganisa
Mamiriro A: Iwe unofunga kuti unoda jecha kutonga, asi iwe unongoda kupinda
Kana iyo dhizaini isingaite kuita jecha, kusarudza slots "yejecha kutonga" kunogona kuwedzera plugging njodzi uye kurasikirwa kwekumanikidza. Muzviitiko zvakawanda, dhizaini ine perforated yakakwana uye iri nyore kutsanangura (gomba dhayamita, pitch, yakavhurika interval kureba).
Mamiriro ezvinhu B: Iwe unotarisira maburi / mitsetse chete kugadzirisa jecha kutonga, asi kupedzisa hakuna backup.
Kana jecha ringangoitika (mareti akakwira, kudhirowa kwepamusoro, zvakaomesesa), kuvimba nemakomba kana maslots chete anogona kuve nenjodzi. Ungave uchida mascreen, gravel pack, kana mamwe majecha{1}}control systems isystem{2}}level decision, kwete "slots vs. holes."
Mamiriro ezvinhu C: Unorerutsa kugamuchirwa uye zvinyorwa
NeEPC/TPI/export zvinodiwa, nyaya dzinowanzo onekwa pazvinyorwa uye magedhi ekugamuchira:
- RFQ inodaidzira 3.1/3.2, NDT, marekodhi ebvunzo, asi mutengesi haakwanise kuendesa seti dzakakwana.
- Unoda MDR/Data Book, asi chete gamuchira yakakosha MTC
- Iwe unoda kuvhura saizi / dhizaini rekodhi, asi ingowana kusimbiswa kwemuromo
Apa ndipo panotsvedza zvirongwa. Octal Pipe inowanzotanga nekubatanidza gwaro rakajeka (zvikepe zvinouya nekusingaperi, zvingasarudzika, zvinoda chapupu chechitatu-nebato) kuderedza kusavimbika kwekugamuchirwa kare.
Kukurumidza kusangana pane slots vs. makomba, gadzirira
- Rudzi rwekupedzwa: buri rakavhurika kana -gomba; pachava nekuboora kumwewo here?
- Kuumbwa: saizi yejecha kugovera, faindi yemukati, sanding nhoroondo
- Chiyero uye kudhirowa: chiyero chechinangwa uye inotarisirwa kudonhedza kudonha renji
- Sevhisi: midhiya, tembiricha, CO2/H2S, kuomarara kurodha
- Kunyanya kukosha: wedzera inflow / kuderedza sanding / kuwedzera hupenyu
- Pipe basics: OD, ukobvu hwemadziro, giredhi, kubatana, kureba
- Kuvhura dhizaini: slot hupamhi kana gomba dhayamita, pateni/pitch, yakavhurika kupindirana kureba, yakananga nzvimbo yakavhurika
- Kugamuchirwa & zvinyorwa: dhift / ID chirevo, deburring chinodiwa, NDT, bvunzo, 3.1 / 3.2, MDR/Data Bhuku, TPI chapupu kana zvichidikanwa
Mibvunzo Yakajairika
Q1: Iyo yakatsvetwa liner yakafanana nescreen?
Kwete chaizvo. A slotted liner inoshandisa machined slots; "skirini" kazhinji inoreva mamwe madhizaini ejecha{1}}yekudzora magadzirirwo. Mitinhiro inogona kuve yakareruka kupinza/jecha-kuchengeta sarudzo, nepo masikirini achiwanzova chikamu chejecha rakatsaurirwa-nzira yekudzora.
Q2: Nzvimbo yakavhurika yakawanda inogara iri nani here?
Kwete nguva dzose. Kuvhura kwakawanda kunogona kuwedzera njodzi yekukukurwa kwevhu, kuderedza simba renzvimbo, uye kusimudza manzwiro ekupuragi kana kuita jecha. Saizi yakakodzera uye pateni zvinoenderana nekuumbwa uye kushanda mamiriro.
Q3: Pamugomba-ndinogona here kuvimba nemaslots/maburi semutongi wejecha chete?
Ngwarira. Cased-maitirwo egomba anoenderanawo nekutumbuka, annulus mamiriro, uye jecha deposition. Kazhinji hazvina njodzi kuongorora makwara/maburi sechikamu chekupedzisa uye jecha-hurongwa hwekudzora.
Final Note
Usatanga ne "slots kana maburi." Tanga nechinangwa chaicho chenguva iyoyo: kutendeseka/kuzviparadzanisa nevamwe, kupinda, kana kutonga jecha. Kana chinangwa chave pachena, sarudzo inokurumidza-uye kana nguva yacho ichifanira kupfuura kugamuchirwa kwakasimba, tsanangura maparameta ekuvhura uye mapepa ezvinyorwa panguva imwe chete.
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