Lero pali mutu wamba "kugula molakwika / kulakwitsa / konzanso pambuyo pake" patsamba:Casingvs. Slotted Casing Extension vs. Perforated Pipe-kusiyana kwake ndi kotani?
Mwinamwake mudamvapo izi kale:
- Zonse zangokhala chitoliro chotseguka, sichoncho?
- Mipata ndi mabowo onse amalowetsa madzi-chilichonse kugwira ntchito.
- Tiyeni tingoyendetsa chowonjezera chosungirako ndikusunga nthawi ina.
Zikumveka zomveka, koma apa ndi pamene zolakwa zodula zimayambira. Izi zitatu zitha kuwoneka zofanana, koma zimapangidwira ntchito zosiyanasiyana. Zitengereni ngati zomwezo ndipo mutha kukhala ndi mchenga, plugging, kuthamanga{2}}zovuta, kapena vuto lazogula-zolemba ndi kuvomereza kosagwirizana ndi zomwe polojekiti ikufuna.
Tiyeni timveke momveka bwino kuti aliyense ndi wa chiyani
- Casing: "msana" wa chitsime. Thandizo lamapangidwe, kukhulupirika kwamphamvu, kudzipatula kwa zonal, ndi maziko a simenti. Sizinapangidwe makamaka ngati gawo lolowera.
- Slotted Casing Extension (Slotted Liner/Extension): njira yolowera yokhala ndi mchenga wocheperako. Zosintha zazikulu ndi kukula kwa slot ndi mtundu wa slot.
- Perforated Pipe (Perforated Liner): njira yolowera m'mabowo. Zosintha zazikulu ndi mainchesi a dzenje, phula la dzenje / mawonekedwe, ndi malo otseguka; Kuwongolera mchenga kumadalira njira yonse yomaliza, osati chitoliro choboola chokha.
Tebulo Limapereka Mapeto: Zomwe Aliyense Amasankha
| Kanthu | Casing | Slotted Casing Extension (Slotted Liner/Extension) | Chitoliro Chong'ambika (Perforated Liner) |
|---|---|---|---|
| Ntchito yoyamba | Thandizo lamapangidwe a Wellbore, kudzipatula kwa zonal, kutsekereza kukakamiza, maziko a simenti | Amapereka zolowera mukugwiritsa ntchito kukula kwa slot kuti "agwire" mchenga (kuwongolera mchenga kochepa) | Amapereka zolowera m'mabowo; zitha kupangitsa kuti kumaliza kusakhale kosavuta kapena kuloleza kulowa kwanuko |
| Malo enieni | Zokwanira bwino zigawo / zingwe casing ndi interval | Nthawi zambiri amagwiritsidwa ntchito podutsa potsegula / osavala nsapato ngati liner/zowonjezera | Amagwiritsidwa ntchito panthawi yolowera; nthawi zina amatengedwa ngati njira ina yolowera |
| Kuwongolera kolowera | Nthawi zambiri zimatengera zida zamtsogolo / zomaliza | Kutengera kukula kwa kagawo + kagawo kakang'ono + malo otseguka | Kutengera kukula kwa dzenje + phula la dzenje/chitsanzo + malo otseguka |
| Kuwongolera mchenga | Palibe palokha | Zochepa; zimatengera kufananiza kagawo m'lifupi ndi kupanga mchenga | Nthawi zambiri amakhala ofooka kuposa mipata pamalo otseguka ofanana; nthawi zambiri amafunikira njira zowonjezera |
| Zowopsa zazikulu | Kulephera kudzipatula / kukhulupirika ndi kuvomereza | M'lifupi molakwika kagawo → plugging kapena mchenga; slot burrs/edges → thamangani-pazovuta komanso kutaya mphamvu | Kapangidwe ka dzenje kosakwanira → kusenda / kukokoloka; hole burrs/edges → kuthamanga-muzongopeka |
| Kumaliza logic | Umphumphu ndi kuvomereza zoyendetsedwa | Kulowa + kusungitsa mchenga wopepuka kumayendetsedwa | Kupanga njira yopita patsogolo |
Zolemba zazikulu:M'mabowo-mabowo, kudalira sikirini/gawo lokhala ngati mchenga wokhawo-ukhoza kukhala pachiwopsezo chachikulu, chifukwaannulus / perforations akhoza kudzaza mchenga ndi kuchepetsa zokolola; iwunikeni mkati mwa dongosolo lonse lomaliza.
Chifukwa chiyani onse "amalowetsa madzi," koma zotsatira za m'munda zimasiyana?
1. Chifukwa mtundu wotsegula (mabowo motsutsana ndi malo otsetsereka) amasintha zinthu zitatu: plugging vs. sanding sensitivity, moyo wa kukokoloka, ndi kuthamanga{3}}pangozi.
- Kumanga motsutsana ndi mchenga: Kutsegula kolakwika kumayambitsa kulephera kosiyana
- M'lifupi mwake / dzenje laling'ono kwambiri: chiwopsezo chokwera kwambiri, kutsika kwamphamvu, kuchepa kwa zokolola (nthawi zina zimayamba "zabwino" ndikuwonongeka pakapita nthawi).
Chachikulu kwambiri: chiwopsezo chokwera mchenga, kukokoloka kwa mitsinje, ndi kuwonongeka kwa mavavu/zopindika ndi zida zina.
Mipata nthawi zambiri imasankhidwira "kusunga mchenga wopepuka" chifukwa m'lifupi mwake amatha kukhala ngati sikelo yosefera. Koma ikadali "yopepuka" yowongolera mchenga, osati mchenga wathunthu-wowongolera.
2. Kukokoloka kwa nthaka: m’mbali ndi malo opanda mphamvu
Pamitengo yayikulu yokhala ndi zolimba komanso zotsika kwambiri, m'mphepete mwa ma slot ndi m'mphepete mwa dzenje zimatha kukokoloka. Malo otseguka kwambiri sakhala bwino. Moyo wa kukokoloka ndi mtundu wa m'mphepete (kubweza, kumaliza m'mphepete, kuyeretsa) ziyenera kuwunikiridwa pamodzi ndi mapangidwe olowera.
3. Thamangani-pachiwopsezo: zambiri "sizingatheke" zovuta zimabwera chifukwa chosawongolera makina
Ngati ma burrs, mapindikidwe, kapena kuyeretsa sikukuyendetsedwa pambuyo pa slotting / perforating, mutha kuwona:
- cheza-panthawi yothamanga{1}}
- drift/ID kulephera
- mapindikidwe am'deralo kuletsa zida wotsatira
Ndicho chifukwa chake ntchito zabwino sizimangopempha "zotsegula magawo." Amapemphanso zolemba zovomerezeka (macheke / ma ID, malipoti amtundu) ndi momwe kutsegulirako kudamalizidwa. Pamapulojekiti a Octal Pipe, zinthuzi nthawi zambiri zimayenderana msanga-makulidwe ndi masanjidwe, kumaliza m'mphepete, ma rekodi a drift/dimension, ndi zolembedwa zofananira{3}}kuti tsamba lisathe kukonza zinthu zomwe zingathe kupewedwa.
Zolakwika zitatu zofala kwambiri zosankhidwa
Chitsanzo A: Mukuganiza kuti mukufuna kuwongolera mchenga, koma mumangofunika kulowa
Ngati mapangidwewo sakonda kusuntha mchenga, kusankha mipata "ya kuwongolera mchenga" kumatha kukulitsa chiwopsezo cha plugging ndi kutayika kwamphamvu. Nthawi zambiri, mapangidwe a perforated ndi okwanira komanso osavuta kufotokozera (m'mimba mwake, phula, kutalika kwa nthawi yotseguka).
Chitsanzo B: Mukuyembekeza mabowo / mipata yokhayo kuti ithetse kuwongolera mchenga, koma kumaliza kulibe zosunga zobwezeretsera.
Ngati mchenga uli ndi kuthekera (kuchuluka, kutsika kwakukulu, zolimba), kudalira mabowo kapena mipata yokha kungakhale kowopsa. Kaya mukufuna zowonera, gravel pack, kapena mchenga wina-zowongolera ndi njira-zosankha, osati "slots vs. holes."
Chitsanzo C: Mumapeputsa kuvomereza ndi zolemba
Ndi zofunikira za EPC/TPI/zotumiza kunja, nkhani nthawi zambiri zimawonekera pazolembedwa ndi zipata zolandirira:
- RFQ imayitanitsa 3.1 / 3.2, NDT, zolemba zoyesa, koma wogulitsa sangathe kupereka seti yonse.
- Mufunika MDR/Data Book, koma mungolandira MTC yoyambira
- Mufunika zolemba za kukula / masanjidwe, koma landirani chitsimikiziro chapakamwa
Apa ndipamene madongosolo amazembera. Octal Pipe nthawi zambiri imayamba ndi kugwirizanitsa mndandanda wa zikalata zomveka bwino (zomwe zimatumiza mosakhazikika, zomwe zingasankhidwe, zomwe zimafunika mboni yachitatu) kuti muchepetse kusatsimikizika kovomerezeka msanga.
Kuti mugwirizane mwachangu pamipata motsutsana ndi mabowo, konzekerani
- Mtundu wamalize: openhole kapena cased-bowo; padzakhala kuboola kwina?
- Mapangidwe: kugawa kukula kwa mchenga, zolipiritsa, mbiri ya mchenga
- Mlingo ndi kutsika: kuchuluka kwa chandamale ndi kuchuluka kwa kutsika komwe kukuyembekezeka
- Utumiki: media, kutentha, CO2/H2S, zolimba potsegula
- Chofunika kwambiri: kuchulukitsa kulowa / kuchepetsa mchenga / kukulitsa moyo
- Zoyambira zapaipi: OD, makulidwe a khoma, kalasi, kulumikizana, kutalika
- Mapangidwe otsegulira: m'lifupi mwake kapena kutalika kwa dzenje, pateni / phula, kutalika kwa nthawi yotseguka, malo otseguka
- Kuvomereza & zolemba: lipoti la drift/ID, zofunika kubweza, NDT, mayeso, 3.1/3.2, MDR/Data Book, mboni ya TPI ngati ikufunika
Mafunso Odziwika
Q1: Kodi liner slotted mofanana ndi chophimba?
Osati ndendende. Liner yolowera imagwiritsa ntchito mipata yopangidwa ndi makina; Mawu akuti "screen" nthawi zambiri amatanthauza mchenga{1}}womwe umapangidwira mwapadera. Mipata imatha kukhala njira yopepuka yolowera/mchenga-yosunga, pomwe zowonera nthawi zambiri zimakhala gawo la mchenga wodzipereka-wowongolera.
Q2: Kodi malo otseguka nthawi zonse amakhala bwino?
Osati nthawi zonse. Kutsegula kochulukira kumatha kukulitsa chiwopsezo cha kukokoloka, kumachepetsa mphamvu zakumaloko, ndikukulitsa chidwi cha pulagi kapena mchenga. Kukula koyenera ndi chitsanzo zimadalira mapangidwe ndi machitidwe ogwira ntchito.
Q3: Pamabowo-ndingathe kudalira mipata/mabowo ngati njira yokhayo yowongolerera mchenga?
Samalani. Maonekedwe-pamabowo amatengeranso kung'ambika, ma annulus, ndi kuyika mchenga. Nthawi zambiri zimakhala zotetezeka kuunika malo otsetsereka/mabowo ngati gawo limodzi la kumaliza ndi mchenga-mapulani owongolera.
Mawu Omaliza
Osayamba ndi "mipata kapena mabowo." Yambani ndi cholinga chenicheni cha nthawiyo: kukhulupirika/kudzipatula, kulowa mkati, kapena kuwongolera mchenga. Cholinga chake chikaonekera bwino, kusankha kumafulumira-ndipo ngati nthawiyo ikuyenera kuvomerezedwa, tchulani zotsegulira komanso zolembera nthawi yomweyo.
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