Case -Rami vs Buɗaɗɗen Hoto: Lokacin Amfani da Layukan da aka Rarraba ko Bututun Rarrafe

Yau babban batun "siyan kuskure / yi kuskure / sake yin aiki daga baya" akan rukunin yanar gizon:Casingvs. Slotted Casing Extension vs. Perforated Pipe{2}} menene ainihin bambanci?

Wataƙila kun taɓa jin waɗannan a baya:

Duka bututu ne da buɗaɗɗe, dama?
Ramuka da ramuka duka suna barin ruwa a ciki{0}}kowane ɗaya yana aiki.
Bari kawai mu gudanar da ƙarar casing ɗin da aka rataye a can kuma mu adana lokaci daga baya.

Suna da ma'ana, amma wannan shine ainihin inda kurakurai masu tsada suka fara. Waɗannan ukun na iya kama da kamanni, amma an gina su don ayyuka daban-daban. Ɗauke su a matsayin abu ɗaya kuma za ku iya ƙarewa tare da yashi, toshe, gudu{2} cikin al'amura, ko mafarkin siyayya{3}} takardu da yarda da ba su dace da abin da aikin ke buƙata ba.

Bari mu bayyana a sarari game da abin da kowannensu yake

Casing: "kashin baya" na rijiyar. Taimakon tsari, mutuncin matsi, keɓewar shiyya, da tushen siminti. Ba a ƙirƙira shi da farko azaman abin shigar da kaya ba.
Ramin Casing Extension (Slotted Liner/Extension): hanya mai shigowa tare da iyakataccen riƙewar yashi. Maɓallin maɓalli shine faɗin ramin da ƙirar ramin.
Bututu mai Perforated (Perforated Liner): hanya mai shigowa ta ramuka. Maɓallin maɓalli sune diamita na rami, rami / tsari, da buɗaɗɗen wuri; sarrafa yashi yawanci ya dogara ne akan dabarun gamawa gabaɗaya, ba bututun da ya lalace kaɗai ba.

Tebur Yana Bada Ƙarshe: Abin da Kowa Yake Warware

Abu	Casing	Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙaƙwalwa	Bututu mai Perforated (Perforated Liner)
Aikin farko	Tallafin tsarin Wellbore, keɓewar shiyya, ɗaukar matsi, tushen ciminti	Yana ba da shigowa yayin amfani da girman ramin don "riƙe baya" wasu yashi (iyakantaccen sarrafa yashi)	Yana ba da shigowa ta ramuka; zai iya sauƙaƙa kammalawa ko ba da damar shigar cikin gida
Wuri na yau da kullun	Cikakkun sassan rijiyar / igiyoyin casing ta tazara	Yawancin lokaci ana amfani da shi a cikin tazara na buɗaɗɗen buɗaɗɗen / mara takalmi azaman layin layi/tsawo	Ana amfani da tazarar tazarar shigowar ta musamman; wani lokacin ana ɗaukarsa azaman madadin abin shigar da ke ciki
Ikon shigowa	Yawanci ya dogara da kayan aikin ɓarna/kammala daga baya	Tasiri ta hanyar faɗin ramin + ƙirar ramin + wurin buɗewa	Tasiri ta hanyar diamita na rami + rami / tsari + buɗaɗɗen wuri
Sarrafa yashi	Ba kowa da kanta	Iyakance; ya dogara da daidaita nisan ramin zuwa yashi samu	Gabaɗaya ya yi rauni fiye da ramummuka a buɗaɗɗen wuri iri ɗaya; sau da yawa yana buƙatar ƙarin matakan
Babban haɗari	Warewa gazawa / mutunci da batutuwan karɓuwa	Faɗin ramin kuskure → toshe ko yashi; rami burrs/gefu → gudu{0}}a cikin batutuwa da asarar matsa lamba	Tsarin rami mara kyau → sanding / yashwa; rami burrs / gefuna → gudu{0} a cikin batutuwa
Ma'anar kammalawa	Mutunci da karbuwa ya motsa	Mai shigowa + yashi mai haske ya kore	An kora ƙirar hanyar shigowa

Mabuɗin bayanin kula:A cikin aikace-aikacen ramuka{0}, dogaro akan allo/bangaren ramuka azaman yashi kaɗai{1}ma'aunin sarrafawa na iya zama haɗari mafi girma, sabodaannulus / perforations na iya cika da yashi kuma ya rage yawan aiki; kimanta shi a cikin cikakken shirin kammalawa.

Me yasa duk zasu iya "bari ruwa ya shiga," amma sakamakon filin ya bambanta?

1. Domin nau'in buɗewa (ramuka vs. ramummuka) yana canza abubuwa uku: toshe vs. sanding sensitivity, rayuwar yazawa, da gudu{3} cikin haɗari.

Plugging vs. sanding: kuskuren girman buɗewa yana haifar da rashin nasara
Ramin nisa/diamita ya yi ƙanƙanta: haɗarin toshe mafi girma, raguwar matsa lamba, raguwar yawan aiki (wani lokaci yana farawa "lafiya" kuma yana ƙasƙantar da lokaci).

Ya fi girma: haɗarin yashi mafi girma, yashwar ƙasa, da lalacewa ga bawuloli/mafuta da sauran kayan aiki.

Ana zaɓin ramummuka sau da yawa don "hasken yashi mai haske" saboda faɗin ramin yana iya aiki kamar ma'aunin tacewa. Amma har yanzu yana da "haske" sarrafa yashi, ba cikakken yashi ba{1} tsarin sarrafawa.

2. Yazawa: gefuna sune wuraren rauni
A high rates tare da daskararru da babban drawdown, duka Ramin gefuna da rami gefuna na iya rude. Wurin buɗewa mafi girma baya kyau ta atomatik. Ya kamata a sake nazarin rayuwar yazawa da ingancin gefen (deburring, ƙarshen ƙarshen, tsaftacewa) tare da ƙirar shigowa.

3. Gudu{1} cikin haɗari: yawancin "ba za su iya shigar da shi ba" al'amurran da suka shafi sun fito ne daga rashin kulawar injina

Idan ba a sarrafa burrs, nakasawa, ko tsaftacewa bayan ramuwa / ɓarna, zaku iya gani:

rataye{0}}a lokacin gudu{1}}a
drift/ID gazawar
nakasar gida yana hana kayan aikin gaba

Abin da ya sa ayyuka masu kyau ba kawai suna neman "bude sigogi ba." Suna kuma neman bayanan karɓuwa (dubawar tuƙi/ID, rahotannin girma) da yadda aka gama buɗewa. Don ayyukan Octal Pipe, waɗannan abubuwan galibi suna daidaitawa da wuri{2}}yawan buɗaɗɗen buɗaɗɗiya da shimfidar wuri, ƙayyadaddun ƙayyadaddun ƙayyadaddun gani, da fakitin takaddun da suka dace- don haka rukunin yanar gizon ba zai ƙare ba.

perforated casing hole pattern close-up-octal pipe cased hole sand control flow path illustration-octal pipe

Kuskuren zaɓi guda uku na gama gari

Scenario A: Kuna tsammanin kuna buƙatar sarrafa yashi, amma kuna buƙatar shigar da ruwa kawai
Idan samuwar ba ta da saurin yashi, zaɓin ramummuka "don sarrafa yashi" na iya ƙara haɗarin toshewa da asarar matsa lamba. A yawancin lokuta, ƙira mai ɓarna ya isa kuma ya fi sauƙi don ƙayyade (diamita na rami, farar, tsayin tazara mai buɗewa).

Scenario B: Kuna tsammanin ramuka / ramuka kadai don magance sarrafa yashi, amma kammalawar ba ta da madadin.
Idan akwai yuwuwar yashi (high rates, high drawdown, gagarumin daskararru), dogara ga ramuka ko ramummuka kadai na iya zama haɗari. Ko kuna buƙatar allo, fakitin tsakuwa, ko wasu yashi{1} tsarin sarrafawa tsari ne{2}} shawarar matakin, ba kawai "ramuka da ramuka ba."

Halin C: Kuna raina yarda da takaddun shaida
Tare da EPC/TPI/buƙatun fitarwa, batutuwa galibi suna bayyana a takaddun shaida da ƙofofin karɓa:

RFQ yana kira ga 3.1/3.2, NDT, bayanan gwaji, amma mai kaya ba zai iya isar da cikakken saiti ba.
Kuna buƙatar littafin MDR/Data, amma kawai sami MTC na asali
Kuna buƙatar buɗaɗɗen girman / shimfidar bayanai, amma kawai sami tabbaci na baki kawai

Wannan shine inda jadawali ke zamewa. Octal Pipe yawanci yana farawa ta hanyar daidaita jerin takaddun takaddun (abin da ke jigilar kaya ta tsohuwa, menene zaɓi, abin da ke buƙatar shaida na ɓangare na uku) don rage rashin tabbas da wuri.

Don haɗuwa da sauri a kan ramummuka vs. ramuka, shirya

Nau'in gamawa: buɗaɗɗen rami ko akwati -rami; za a yi husuma a wani wuri?
Samuwar: girman girman yashi, abun ciki na tara, tarihin yashi
Rate da raguwa: ƙimar manufa da kewayon faɗuwar matsa lamba
Sabis: kafofin watsa labarai, zazzabi, CO2/H2S, daskararrun lodi
Mahimmanci: ƙara yawan shigowa / rage yashi / haɓaka rayuwa
Tushen bututu: OD, kauri na bango, daraja, haɗi, tsayi
Zane na buɗewa: Ramin nisa ko diamita na rami, ƙira/fiti, tsayin tazara mai buɗewa, wurin buɗaɗɗen manufa
Karɓa & takardu: drift/ID report, deburring bukata, NDT, tests, 3.1/3.2, MDR/Data Book, TPI shaida idan an buƙata

Tambayoyi gama gari

Q1: Shin layin da aka rataye iri ɗaya ne da allo?
Ba daidai ba. Layi mai ramuka yana amfani da ramummuka na inji; "allon" sau da yawa yana nufin ƙarin yashi na musamman{1}} Ramin ramuka na iya zama mafi sauƙi mai shigar da yashi -zaɓin riƙewa, yayin da allo yawanci ɓangaren yashi ne na musamman{4}} dabarun sarrafawa.

Q2: Shin ƙarin wurin buɗewa koyaushe yafi kyau?
Ba koyaushe ba. Ƙarin buɗewa na iya ƙara haɗarin zaizawa, rage ƙarfin gida, da kuma ɗaga hankali ga toshe ko yashi. Madaidaicin girman da tsari ya dogara da samuwar da yanayin aiki.

Q3: A cikin rami -, zan iya dogara ga ramummuka/ramuka a matsayin kawai sarrafa yashi?
Yi hankali. Halin ramuka - Hakanan ya dogara da huɗa, yanayin ɓarna, da zubewar yashi. Yawancin lokaci yana da aminci don kimanta ramuka/ramuka a matsayin wani ɓangare na gabaɗayan kammalawa da yashi{3}} tsarin sarrafawa.

Bayanan Karshe
Kada ku fara da "ramuka ko ramuka." Fara da ainihin makasudin wannan tazara: mutunci/keɓewa, shigowa, ko sarrafa yashi. Da zarar manufar ta bayyana, zaɓin zai zama da sauri - kuma idan tazara dole ne ta wuce yarda mai ƙarfi, ayyana sigogin buɗewa da fakitin takaddun lokaci guda.