I-Choke Valve Technology kanye nokusetshenziswa kwama-Hard Alloys kuma-Choke Valves

    Ama-valve e-Choke ayizingxenye ezibalulekile ezinhlelweni zokulawula uketshezi ezimbonini zikawoyela, igesi, namakhemikhali, ezisetshenziselwa ukulawula ngokunembile amazinga okugeleza, ukuzinzisa ukucindezela, nokuvimbela ukulimala kwe-cavitation nokuguguleka. Ngaphansi kwezimo zokusebenza ezidlulele (ingcindezi ephezulu, ukugqwala, ukugeleza kwe-multiphase), izinto zendabuko ngokuvamile ziyehluleka ukuhlangabezana nezidingo zokuqina zesikhathi eside. Ama-Hard alloys, afana ne-tungsten carbide (WC), enobulukhuni obuphezulu kakhulu, ukumelana nokuguga, nokumelana nokugqwala, asephenduke inketho efanelekile yezingxenye ezibalulekile zamavalvu okuklinywa. Lesi sihloko sihlola izimiso zokusebenza zama-valve okuminyanisa, izindlela zokwehluleka ezivamile, futhi sigxile ezinhlelweni zama-alloys aqinile kuma-valve trim, izihlalo, kanye nezindawo zokuvala.  

1. Imisebenzi Esemqoka kanye Nezinselele zama-Choke Valves

1.1 Imisebenzi ye-Choke Valves

I-Pressure Regulation: Ilawula ukucindezela kwe-wellhead ukuvimbela ukukhiqizwa kwesihlabathi noma ukuqhuma ngenxa yokwehla kwengcindezi kungazelelwe.  

Ukulawula Ukugeleza: Ilungisa amazinga okukhiqiza i-hydrocarbon ukuze ihambisane nomthamo wokucubungula ongezansi.  

I-Multiphase Flow Management: Ikhuluma nge-cavitation kanye nokuguguleka kokugeleza okuxubile kawoyela-igesi-amanzi.  

1.2 Izindlela Zokwehluleka Ezivamile

2. Ukufakwa kwe-Hard Alloys kuma-Choke Valves 

2.1 Izinzuzo Eziyinhloko Zama-Hard Alloys 

Ukuqina Okuphakeme Kakhulu (1,400–2,000 HV), ukumelana nokuguga okuphindwe izikhathi ezingu-10 kunensimbi engagqwali.  

Ukumelana Nokugqwala: Ama-alloys e-WC-Ni enza kahle kakhulu kune-WC-Co ezindaweni ezine-acidic.  

I-Cavitation Resistance: Isakhiwo esihle-grained kunciphisa ukusakazeka kwe-microcrack kusukela ekubhidlikeni kwebhamuza.  

2.2 Ukuthuthukiswa Kwezinto Ezibalulekile Zezingxenye Ezibalulekile

(1) I-Valve Trim neSitulo

- Izinto Zendabuko: I-17-4PH insimbi engagqwali, i-Stellite 6 (i-Co-based alloy).  

- Izixazululo ze-Hard Alloy:  

  - WC-10Ni: Okwezindawo ezicebile nge-H₂S (isb., izinkundla zegesi zasogwini).  

  - WC-13Co: Ukuqina okuphezulu kwengcindezi ephezulu, izimo ezigcwele isihlabathi (isb., imithombo kawoyela we-shale).  

  - I-TSP (I-Thermally Stable Polycrystalline Diamond) Ukugqoka: Ukumelana nokuguguleka okudlulele (isb., uketshezi olugelezayo lwe-fracturing).  

 (2) Isiqu se-Valve namaBush  

- Ukwelashwa kwendawo:  

  - I-HVOF-sprayed WC-10Co-4Cr (1,200–1,400 HV).  

  - I-Laser-clad gradient hard alloy layers (amandla ebhondi >300 MPa).  

300 MPa).  

 (3) Izingcwecwe ze-Orifice  

- I-Solid Sintered WC: Ingena esikhundleni sika-316L, inweba impilo yesevisi engu-5–8x.  

- Idizayini Ehlanganisiwe:  

  - Isisekelo: Insimbi enekhabhoni ephansi (ibiza kahle).  

  - Isendlalelo esingagugi: 0.5mm WC-Ni (welding ye-PTA).  

 3. Izifundo Zezimboni  

 3.1 Amavalvu Amafutha Amanzi Ajulile Negesi  

- Inselele: > 1,500m ukujula kwamanzi, 70 MPa ingcindezi, 5% okuqukethwe kwesihlabathi.  

1,500m ukujula kwamanzi, 70 MPa ingcindezi, 5% okuqukethwe kwesihlabathi.  

- Isixazululo:  

  - Nquma: Solid WC-10Ni (0.8μm usayizi wokusanhlamvu).  

  - Indawo yokubeka uphawu: I-TSP coating (i-cavitation-resistant).  

- Umphumela: Isikhathi sokunakekela sinwetshwa sisuka ezinyangeni ezi-3 siye eminyakeni emi-5.  

 3.2 I-Shale Gas Fracturing Wellhead Chokes  

- Challenge: 105 MPa ingcindezi + ukuguguleka kwesihlabathi se-quartz.  

- Isixazululo:  

  - I-Multi-stage trim: WC-13Co (i-coarse-grained yokumelana nomthelela).  

  - Isihlalo: I-Ultra-fine WC-6Ni (1,800 HV).  

- Umphumela: Izinga lokuguguleka kwenhlabathi lehle ngo-85%.  

 3.3 I-SAGD Steam Choke Valves  

- Inselele: 340°C umusi + ukukhathala kokuhamba ngebhayisikili.  

- Isixazululo:  

  - Umzimba we-valve: I-Inconel 625 + WC-CoCr coating.  

  - Ibhola: I-Gradient hard alloy (umgogodla oqinile / indawo ekwazi ukumelana nokugqoka).  

- Umphumela: 4x ubude besikhathi eside uma kuqhathaniswa nezinto ezivamile.  

 4. Amathrendi Akusasa  

1. Ama-Smart Choke Valves:  

   - Izinzwa ezihlanganisiwe zengcindezi/izinga lokushisa zokulungiswa kwesikhathi sangempela.  

   - Isibikezelo sokugqokwa kwamawele edijithali (isb., i-Schlumberger's PhaseMaster™ AI).  

2. Izinhlanganisela Ezithuthukile:  

   - I-Nano-WC/graphene coatings (i-friction coefficient

   - Iziteshi ze-3D eziphrintiwe eziqinile ze-alloy eziyinkimbinkimbi.  

3. Ukukhiqiza Okuluhlaza:  

   - Izibophezelo zamahhala ze-Cobalt (WC-Fe/Ni) zokuthobela imvelo.  

 Isiphetho  

Ama-Hard alloys athuthukisa kakhulu ukuqina kwe-valve ye-choke ngokuthuthukisa ukumelana nokugqokwa, ukumelana nokugqwala, nokumelana ne-cavitation, ukunciphisa izindleko zokuyilungisa. Intuthuko yesikhathi esizayo kusayensi yezinto zokwakha kanye nokuhlanganiswa kwedijithali kuzoqhubekisela phambili imingcele yokusebenza.  

Ukuze uthole ukukhetha okubalulekile noma izixazululo zokusebenza, xhumana nethimba lethu lezobuchwepheshe!  

I-Choke bean ivame ukusetshenziswa ku-valve yokuklinya ephozithivu ukulawula ukugeleza. I-Body Material: I-SS410, efakwe i-Tungsten Carbide UBT08, ukuze ivikeleke ekugqokeni okubolayo nokulimazayo.

Ngakolunye uhlangothi lwenqwaba yokuklinywa, ubhontshisi obukaliwe obulinganisiwe usetshenziswa ukulawula izinga lokugeleza ngebhokisi lokuminyanisa elingaguquki.

Ubhontshisi ngamunye unobubanzi obuthile, imvamisa ekuthwesweni iziqu kuka-1/64-132 intshi, kuye ngohlobo lwemishini esetshenziswayo.

Ubukhulu bobhontshisi obuxutshwe bungakhula bube ngamasentimitha angu-3.

I-ZZbetter carbide ingenza ukwelashwa kwe-QPQ emzimbeni kabhontshisi oyiminyanisa, ukuthuthukisa ubulukhuni bobuso.

Imikhiqizo Eyinhloko:

I-Blowout preventer kanye nezinsiza

Klinya futhi ubulale kaningi

Khipha futhi Ubulale iHose

Iphaneli yokulawula

I-Wellhead & Christmas Tree

Amavalvu

Iphampu yokuhlola

Iyunithi yokulawula ye-Bop

I-Union/ Swivel Joint/ Fitting

I-Flange

Spool

Ukupakisha i-Elastomer

Ama-Chokes nama-valve anciphisa izingxenye

Izindandatho zamaphampu

Uchungechunge lomkhiqizo we-Labyrinth

Drill bit nozzles, ifaka, cutters

Izingxenye ze-MWD, izingxenye zethuluzi le-downhole

TC amabhere, PDC thrust bears

Izingxenye zokulawula ukugeleza kwe-Downhole

Izingxenye zamaphampu okuphakamisa okwenziwayo

Uchungechunge lomkhiqizo onzima kakhulu

Izixazululo ezintsha ze-hardfacing

Izithenjwa:  

1. API 6A Wellhead kanye Nezisetshenziswa Zesihlahla sikaKhisimusi