Cased-Hole vs Openhole: Nako ea ho Sebelisa Li-Slotted Liners kapa Perforated Pipes

Kajeno ke sehlooho se tloaelehileng sa "reka phoso / u tsamaee hampe / reroa hamorao" setšeng:Casingkhahlano le Slotted Casing Extension vs. Perforated Pipe- phapang ea sebele ke efe?

Mohlomong u kile oa utloa tsena pele:

Ke phaephe feela e nang le menyetla, na ha ho joalo?
Li-slots le masoba li lumella maro hore a kene-e le 'ngoe e sebetsa.
Ha re etseng feela katoloso ea casing e slotted moo 'me re boloke nako hamorao.

Li utloahala li utloahala, empa ke hona moo liphoso tse theko e boima li qalang teng. Tsena tse tharo li ka shebahala li tšoana, empa li etselitsoe mesebetsi e fapaneng. Li nke e le ntho e tšoanang 'me u ka qetella u e-na le sanding, pluging, run{2}}litabeng, kapa u na le bothata ba ho reka{3}litokomane le kamohelo e sa tsamaellaneng le seo projeke e se hlokang.

A re hlake hore na e 'ngoe le e 'ngoe e etselitsoe eng

Casing: "mokokotlo" oa seliba. Tšehetso ea sebopeho, botšepehi ba khatello, ho itšehla thajana, le motheo oa cementing. Ha ea etsoa haholo-holo e le karolo ea ho kena.
Slotted Casing Extension (Slotted Liner/Extension): tsela e kenang e nang le lehlabathe le lekanyelitsoeng. Lintlha tse ka sehloohong ke bophara ba slot le mokhoa oa slot.
Perforated Pipe (Perforated Liner): tsela e kenang ka har'a masoba. Liphetoho tsa bohlokoa ke bophara ba lesoba, sekontiri sa lesoba / mohlala, le sebaka se bulehileng; taolo ya lehlabathe ka tlwaelo e itshetlehile hodima leano la ho phethela ka kakaretso, eseng phaephe e nang le diphahlo feela.

Tafole e Fana ka Qetello: Seo E Mong le e Mong a se Rarollang

Ntho	Casing	Keketso ea Casing e Slotted (Slotted Liner/Extension)	Pipe e Perforated (Perforated Line)
Mosebetsi oa mantlha	Tšehetso ea sebopeho sa Wellbore, ho itšehla thajana, ho thibela khatello, motheo oa samente	E fana ka phallo ha u ntse u sebelisa boholo ba slot ho "tšoara" lehlabathe le itseng (taolo e lekanyelitsoeng ea lehlabathe)	E fana ka phallo ka mekoti; e ka nolofatsa ho phethela kapa ho etsa hore phallo ea lehae e be teng
Sebaka se tloaelehileng	Likarolo tse felletseng hantle / likhoele tsa casing ka nako	Hangata e sebelisoa ho pholletsa le nako ea openhole/barefoot e le liner/extension	E sebelisoa ho pholletsa le linako tse itseng tsa ho kena; ka linako tse ling e nkoa e le karolo e 'ngoe ea phallo
Taolo ya phallo	Ka tloaelo ho itšetlehile ka lisebelisoa tsa morao-rao tsa perforating / ho phethela	E susumetsoa ke slot wide + slot pattern + sebaka se bulehileng	A susumetsoa ke bophara ba lesoba + sekontiri sa lesoba/mohlala + sebaka se bulehileng
Taolo ea lehlabathe	Ha ho letho ka boeona	Moedi; ho ipapisitse le bophara ba sekotjana le lehlabathe la sebopeho	Ka kakaretso e fokola ho feta li-slots sebakeng se tšoanang se bulehileng; hangata e hloka mehato e eketsehileng
Likotsi tse ka sehloohong	Ho hloleha ho itšehla thajana / botšepehi le litaba tsa kamohelo	Bophara bo fosahetseng ba sekotjana → ho phunya kapa ho etsa lehlabathe; slot burrs/edges → matha-ka mathata le tahlehelo ea khatello	Moralo o fosahetseng oa lesoba → sanding / khoholeho ea mobu; hole burrs/edges → matha-ka litaba
Tlhaho ea ho qetela	Botšepehi le kamohelo e khannoang	Inflow + ho boloka lehlabathe le bobebe ho tsamaisoa	Moqapi oa tsela ea ho kena o tsamaisoa

Ntlha ea bohlokoa:Ha u sebelisa-sekoti sa masoba, ho itšetlehile ka skrine/karolo e koetsoeng e le eona feela mokhoa oa ho laola{1}e ka ba kotsi e kholo, hobaneannulus/perforations e ka tlala lehlabathe le ho fokotsa tlhahiso; e lekole ka hara moralo o phethehileng ka botlalo.

Ke hobane'ng ha bohle ba ka "lumella metsi," empa liphello tsa masimo li fapane?

1. Hobane mofuta oa ho bula (likoti khahlanong le slots) o fetola lintho tse tharo: plugging vs. sanding sensitivity, bophelo ba khoholeho, le ho ipeha kotsing-.

Plugging vs. sanding/ Ketso ya ho bula: boholo bo fosahetseng ba ho bula bo baka ho hloleha ho fapaneng
Bophara ba sekoti / lesoba le le lenyenyane haholo: kotsi e phahameng ea ho plugging, ho theoha ho matla ha khatello, ho theoha ha tlhahiso (ka linako tse ling e qala "hantle" 'me e senyeha ha nako e ntse e ea).

E kholo haholo: kotsi e phahameng ea lehlabathe, khoholeho ea mobu, le tšenyo ea li-valve / manifolds le lisebelisoa tse ling.

Hangata li-slots li khethoa bakeng sa "ho boloka lehlabathe le bobebe" hobane bophara ba slot bo ka sebetsa joalo ka sekala sa ho sefa. Empa e ntse e le taolo ea lehlabathe e "khanyang", eseng mokhoa oa ho laola-ka ho feletseng.

2. Khoholeho ea mobu: mathoko ke lintlha tse fokolang
Ka litekanyetso tse phahameng tse nang le lintho tse tiileng le tse hulang holimo, mahlakore ka bobeli a likoti le likoti li ka senyeha. Sebaka se phahameng se bulehileng ha se betere ka bohona. Bophelo ba khoholeho le boleng ba moeli (ho senya, ho qeta moeli, ho hloekisa) li lokela ho hlahlojoa hammoho le moralo oa ho kena.

3. Matha-kotsing: litaba tse ngata tsa "ha li khonehe" li tsoa taolong e fosahetseng ea mochini.

Haeba li-burrs, deformation, kapa ho hloekisa li sa laoloe ka mor'a ho slotting / perforating, u ka bona:

hang{{0}matla a matle nakong ea ho matha{1}}
ho hloleha ho drift/ID
deformation sebakeng se thibelang lisebelisoa tse latelang

Ke kahoo merero e metle e sa botse feela "mekhahlelo ea ho bula." Ba boetse ba kopa lirekoto tsa ho amoheloa (licheke tsa ho khannoa / ID, litlaleho tsa maemo) le hore na menyetla e felile joang. Bakeng sa merero ea Octal Pipe, lintho tsena hangata li nyallana pele-maemo a ho buloa le sebopeho, pheletso, lirekoto tsa drift/dimension, le sephutheloana sa litokomane tse nyallanang{3}}e le hore saete e se qetelle e lokisa litaba tse ka thibeloang.

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

Liphoso tse tharo tse atileng haholo tsa khetho

Maemo A: O nahana hore o hloka taolo ya lehlabathe, empa o hloka feela ho kena
Haeba sebopeho se sa ratehe ho sanding, ho khetha li-slots "bakeng sa taolo ea lehlabathe" ho ka eketsa kotsi ea plugging le tahlehelo ea khatello. Maemong a mangata, moralo o nang le perforated o lekane ebile o bonolo ho o hlalosa (bophara ba lesoba, sekontiri, bolelele ba nako e bulehileng).

Boemo B: U lebelletse hore masoba / li-slots li le mong ho rarolla taolo ea lehlabathe, empa phetho ha e na bekapo
Haeba ho na le lehlabathe (litefello tse phahameng, ho theoha holimo, lintho tse tiileng), ho itšetleha ka likoti kapa likoti feela ho ka ba kotsi. Hore na o hloka li-screens, gravel pack, kapa lehlabathe{1}}lisebelisoa tse ling tsa taolo ke seseteme{2}}qeto ea boemo, eseng feela "slots vs. holes."

Boemo ba C: U halala kamohelo le litokomane
Ka litlhoko tsa EPC/TPI/export, litaba hangata li hlaha lihekeng tsa litokomane le tsa kamohelo:

RFQ e bitsa 3.1/3.2, NDT, lirekoto tsa liteko, empa mofani oa thepa ha a khone ho fana ka lisebelisoa tse felletseng.
U hloka MDR/Data Book, empa u fumane feela MTC ea mantlha
U hloka ho bula lirekoto tsa boholo / sebopeho, empa fumana netefatso ea mantsoe feela

Mona ke moo manane a thellang. Octal Pipe hangata e qala ka ho hokahanya lethathamo la litokomane tse hlakileng (tse tsamaisoang ka ho sa feleng, seo e leng boikhethelo, se hlokang paki ea boraro-ea mokha oa boraro) ho fokotsa lipelaelo tsa kamohelo pele ho nako.

Ho kopana ka potlako ho li-slots vs. masoba, lokisetsa

Mofuta oa ho qetela: lesoba le bulehileng kapa-mokoti; ho tla ba le perforating kae-kae?
Formation: kabo ea boholo ba lehlabathe, litaba tsa likotlo, nalane ea lehlabathe
Sekhahla le ho theoha: sekhahla sa sepheo le mefuta e lebelletsoeng ea ho theoha ha khatello
Tšebeletso: mecha ea litaba, mocheso, CO2 / H2S, ho kenya lintho tse tiileng
Ntho ea bohlokoa: eketsa phallo / fokotsa sanding / eketsa bophelo
Metheo ea liphaephe: OD, botenya ba lebota, kereiti, khokahano, bolelele
Moralo oa ho bula: bophara ba slot kapa bophara ba lesoba, paterone / sekontiri, bolelele ba nako e bulehileng, sebaka se bulehileng sa sepheo
Kamohelo le litokomane: tlaleho ea drift/ID, tlhokahalo ea ho lefa, NDT, liteko, 3.1/3.2, MDR/ Data Book, paki ea TPI ha ho hlokahala.

Lipotso Tse Tloaelehileng

Q1: Na line e slotted e tšoana le skrine?
Eseng hantle. Liner e slotted e sebelisa mekotla e entsoeng ka mochini; "skrine" hangata e bolela meralo e khethehileng ea lehlabathe{1}}. Li-slots e ka ba mokhoa o bobebe oa ho kena/lehlabathe{3}}oa ho boloka, ha li-skrini hangata e le karolo ea leano le ikemiselitseng la ho laola-lehlabathe.

Q2: Na sebaka se bulehileng se lula se le betere?
Eseng kamehla. Mekhatlo e mengata e ka eketsa kotsi ea khoholeho, ea fokotsa matla a sebaka seo, 'me ea phahamisa maikutlo a ho plugging kapa ho sanding. Boholo bo nepahetseng le mohlala o itšetlehile ka sebopeho le maemo a ts'ebetso.

Q3: Ha ke le mokoti-o nang le mekoti, na nka itšetleha ka likoti/likoti e le tsona feela taolo ea lehlabathe?
E-ba hlokolosi. Boitšoaro ba masoba- bo ipapisitse le ho phunyeha, maemo a annulus, le lehlabathe. Hangata ho bolokehile ho lekola likoti/likoti e le karolo ea ho phethela ka kakaretso le lehlabathe-leano la taolo.

Ntlha ea ho Qetela
U se ke ua qala ka "slots kapa masoba." Qala ka sepheo sa 'nete sa nako eo: botšepehi / ho itšehla thajana, ho kena, kapa taolo ea lehlabathe. Hang ha sepheo se hlakile, khetho e ba kapele-mme haeba nako e tlameha ho feta kamohelo e tiileng, hlalosa maemo a ho bula le sephutheloana sa litokomane ka nako e le 'ngoe.