Kumvetsetsa Kuchuluka kwa Kupanikizika Kwambiri mu Mafuta a Hydraulics

Musanaphunzire za kuchuluka kwa kupanikizika, ndikofunikira kumvetsetsa tanthauzo la "kupanikizika kwambiri" pankhani ya ntchito zamafuta komanso chifukwa chake kusankha kuchuluka kwa kupanikizika ndi chisankho chomwe chimakhala ndi zotsatirapo zazikulu zachitetezo, ntchito, komanso zachuma.

Makina ogwiritsira ntchito ma hydraulic a mafakitale nthawi zambiri amagwira ntchito pa mphamvu yofika 35 MPa (5,000 psi). Zipangizo zogwiritsira ntchito zitsime zopanikizika kwambiri zimatha kugwira ntchito pa 70–105 MPa (10,000–15,000 psi). Kupanikizika kwakukulu, monga momwe tafotokozera m'munda wamafuta, kumayamba pa pafupifupi 140 MPa (20,000 psi) ndipo kumapitirira - mpaka makina omwe ali ndi 250 MPa (36,000 psi) ndi kupitirira apo. Pamlingo wopanikizika uwu, sayansi ya zinthu, mtundu wopanga zinthu, ndi dongosolo la kapangidwe ka makina ofunikira ndizosiyana kwambiri ndi machitidwe wamba a hydraulic.

ChifukwaMphamvu yosungidwa mu dongosolo la hydraulic imafanana ndi sikweya ya kuthamanga kwa ntchito, dongosolo la 250 MPa limasunga mphamvu pafupifupi katatu kuposa voliyumu iliyonse ya dongosolo la 140 MPa pamlingo womwewo wa kuyenda. Mphamvu yosungidwa iyi ndi yomwe imapangitsa zida za UHP kukhala zokhoza kuchita ntchito zovuta - komanso ndi zomwe zimapangitsa zolakwika za pressure rating kukhala zoopsa kwambiri. Chitoliro, fitting, kapena seal yoyesedwa ya 140 MPa yomwe mwangozi yapezeka ku 200 MPa idzaphulika mwamphamvu, zomwe zimabweretsa chiopsezo chachikulu kwa ogwira ntchito ndi zida.

Kupanikizika 1: 140 MPa (20,000 psi) — Muyezo wa UHP Woyambira

Kugwiritsa Ntchito Kawirikawiri kwa Mapampu a 140 MPa

Mapampu okhala ndi mphamvu ya 140 MPa (20,000 psi) ndi omwe amayimira malire olowera kuti mafuta agwiritsidwe ntchito kwambiri. Kawirikawiri amaperekedwa pa:

• Kuyambitsa kwa Wellhead ndi valavu ya mtengo wa Khirisimasi— Mapangidwe ambiri a ma valve a wellhead amafuna mphamvu ya hydraulic mu 70–140 MPa kuti pakhale kutseka kodalirika kwadzidzidzi. Pampu yoyesedwa ya 140 MPa imapereka malire okwanira kuposa izi.
• Kuyesa kuthamanga kwa lubricator ya waya— Ma lubricant a waya ayenera kuyesedwa kuthamanga kwa magazi kuti afike pamlingo wolembedwa (nthawi zambiri 1.5 × kuthamanga kwakukulu komwe kumayembekezeredwa kwa chitsime) musanayambe kugwiritsa ntchito. Mapampu 140 MPa nthawi zambiri amagwiritsidwa ntchito pa izi m'zitsime zomwe zili ndi kuthamanga kwa magazi pang'ono.
• Ntchito zotsitsimula pamwamba musanatsuke— Magawo ena oyambitsa asidi ndi matrix stimulation pre-flush, makamaka m'mapangidwe otsika permeability, amafunika kupanikizika mpaka pafupifupi 120 MPa. Pampu ya 140 MPa-rated imapereka malire ogwirira ntchito ofunikira.
• Zida zokhazikitsira ma hydraulic (zapakati)— Zida zokhazikitsira ma packers, ma bridge plugs, ndi ma downhole gauges m'zitsime zosaya kwambiri mpaka zapakatikati nthawi zambiri zimayesedwa kuti ndi mphamvu ya 140 MPa.
• Kuyesa kwa BOP accumulator pre-charge— Mabotolo olumikizira a BOP pansi pa nyanja ndi pamwamba ayenera kutsimikiziridwa nthawi ndi nthawi kuti atsimikizire kuti mphamvu ya kuthamanga kwa madzi isanayambike kugwiritsidwa ntchito pogwiritsa ntchito mapampu oyesera a hydraulic.

Makhalidwe Aukadaulo a Mapampu a MPa 140

Mapampu a hydraulic omwe ali ndi mphamvu ya 140 MPa nthawi zambiri amakhala a piston ya axial kapena radial piston, pogwiritsa ntchito migolo yachitsulo yokhala ndi alloy ndi ma piston okhala ndi njira zolimbitsira pamwamba (monga kuuma kwa case kapena nitriding) kuti apewe kuwonongeka ndi kutopa chifukwa cha ntchito ya high pressure. Ukadaulo wotsekera pamlingo wopanikizika uwu nthawi zambiri umagwiritsa ntchito Parker, Seal罎, kapena PTFE wopanga wofanana kapena compound seals omwe ali ndi mphamvu ya 140 MPa continuous duty. Vicks Hydraulic'smitundu yonse ya zinthu zopampuimakhudza ziwerengero zonse zovomerezeka za ntchito zogwirira ntchito zamafuta.

Chifukwa140 MPa ili mkati mwa mphamvu ya zida zopangidwira bwino pogwiritsa ntchito njira zodziwika bwino zopangira, mapampu amtunduwu nthawi zambiri amapezeka pamsika, amakhala ndi nthawi yochepa yoperekera chithandizo, ndipo amathandizidwa ndi netiweki yayikulu ya malo operekera chithandizo kuposa njira zina zapamwamba. Unyolo wapadziko lonse lapansi wa zida zoyeretsera za hydraulic za 140 MPa — zolumikizira, ma hoses, ma adapter, ndi zisindikizo — ndi wokhwima komanso wodzaza bwino.

Nthawi Yosankha 140 MPa

Sankhani pampu ya 140 MPa yokhala ndi mphamvu yapamwamba kwambiri pamene mphamvu yanu yayikulu yoyembekezeredwa ya wellbore (MEWP) siipitirira 95 MPa ndipo mphamvu yanu yoyendetsera zida zanu zolowera pansi imakhala mkati mwa msinkhu uwu. Chiyeso cha 140 MPa chimapereka chitetezo cha 1.4–1.5× kuposa mphamvu yanthawi zonse yoyendetsera, zomwe zimakwaniritsa zofunikira za chitetezo cha njira zoyendetsera zitsime za makampani ambiri ogwira ntchito. Ngati ntchito yanu ikuphatikizapo zofunikira za HSE zomwe zimayendetsedwa ndiMiyezo ya API, pampu ya 140 MPa ndiye muyezo wocheperako wa ntchito yolumikizira chitsime cha UHP.

Kupanikizika 2: 175 MPa (25,400 psi) — Ntchito Yapakati Yogwirira Ntchito ya Zitsime Zopanikizika Kwambiri

Kugwiritsa Ntchito Kawirikawiri kwa Mapampu a 175 MPa

Mapampu a 175 MPa (25,400 psi) ali pakati pa ntchito yopereka mafuta amphamvu kwambiri ndipo ndi omwe amagwiritsidwa ntchito kwambiri pamakampani amakono ogwiritsira ntchito zitsime. Nthawi zambiri amagwiritsidwa ntchito pa:

• Kusweka kwa hydraulic (kusweka kwamphamvu kwambiri)— Mu mpweya wa shale wosazolowereka komanso mafuta olimba, kupsinjika kwa frac nthawi zambiri kumafika 70–140 MPa pamwamba, ndipo kupsinjika kwa dzenje la pansi kumapitirira 140 MPa. Pampu yoyesedwa ya 175 MPa imapereka malire ofunikira kuti tikwaniritse kupsinjika kwa kusweka komwe kukufunika m'zitsime zapakatikati zosazolowereka (nthawi zambiri 3,000–5,500 metres TVD).
• Ntchito zolumikizira ndi kusiya (P&A)— Kutseka zitsime ndi kusiya zitsime kumafuna kuyika mapulagi a simenti ndi zotchinga zamakina pamalo enaake otsika. Zida zina zolumikizirana ndi P&A — kuphatikizapo zida zokhazikitsira mapulagi amakina ndi makina osungiramo madzi — zimafuna mphamvu zoyendetsera mpaka 160 MPa, zomwe zimapangitsa 175 MPa kukhala muyezo woyenera wa pampu.
• Kuyeretsa chitsime cha chubu chozungulira— Kuchotsa mamba, mchenga, ndi zinyalala m'mabowo pogwiritsa ntchito zida zotulutsira mpweya wopanikizika kwambiri kumafuna kuyesedwa kwa mphamvu ya pampu komwe kumatha kuthana ndi mphamvu ya mphamvu ya pampu yotulutsira mpweya wozama kwambiri pamene kumapereka mphamvu yokwanira yotulutsira mpweya kuti ayeretse bwino. 175 MPa ndi njira yodziwika bwino yotulutsira mpweya wa pampu ya CT cleanout.
• Kukweza mphamvu yamagetsi ya subsea hydraulic (HPU)— Subsea BOP ndi machitidwe a mitengo amayendetsedwa ndi madzi amadzimadzi a HPU pamwamba omwe amaperekedwa kudzera mu umbilical lines. Kutayika kwa kupsinjika kwa umbilicals yayitali kumatha kuchepetsa kupanikizika kogwira ntchito pa chida cha subsea. Pampu ya 175 MPa-rated ingathe kulipira kutayika kumeneku pamene ikusunga mphamvu yokwanira yoyendetsera zida pa kuya mpaka pafupifupi mamita 3,000 akuya kwa madzi.
• Kutulutsa pulagi yolimbitsa simenti yothamanga kwambiri— Ntchito zopaka simenti m'zitsime zomwe zili ndi ma gradient ambiri zimafuna kuwongolera bwino kuthamanga kwa magazi kuti zisatayike. Mapampu 175 MPa amasankhidwa kuti alimbikitse mphamvu ya mutu m'njira zovuta.

Makhalidwe Aukadaulo a Mapampu a MPa 175

Mapampu omwe amagwira ntchito pa 175 MPa amafunikira uinjiniya wazinthu wotsogola kwambiri kuposa mayunitsi a 140 MPa. Pa mulingo wopanikizika uwu, zolumikizira za API ndi zigawo zake sizili zokwanira - makinawo ayenera kugwiritsa ntchito maulumikizidwe apakhomo a ultra-high pressure (monga Autoclave Engineers' Coned-and-Threaded kapena ofanana nawo), mapaipi apamwamba opangidwa mwamakonda okhala ndi zolemba zolimba za NDT (zosawononga), ndi ukadaulo wapadera wosindikiza.

ChifukwaKugwira ntchito kwa 175 MPa kumafuna kulekerera kolimba kwa kupanga ndi zipangizo zachilendo (superalloys, zitsulo zosapanga dzimbiri zouma), mtengo wa zipangizo zoposa 140 MPa nthawi zambiri umakhala 40–60%. Komabe, envelopu yayikulu ya kupanikizika imapangitsa kuti mapampu a 175 MPa akhale oyenera malo osiyanasiyana a zitsime, zomwe nthawi zambiri zimapangitsa kuti makampani ogwira ntchito azigwira ntchito m'ma portfolio osiyanasiyana a katundu azigwiritsa ntchito ndalama.

Nthawi Yosankha 175 MPa

Tchulani pampu ya 175 MPa yothamanga kwambiri pamene ntchito yanu ikuphimba zitsime zokhala ndi mphamvu ya pansi pa dzenje pakati pa 110–150 MPa; pamene gulu lanu lautumiki liyenera kukhala lotha kugwira ntchito za zitsime zachikhalidwe komanso zachilendo popanda kukweza zida; kapena pamene zida zanu zapansi pa dzenje zikuphatikizapo zida zothandizira zomwe zili ndi mphamvu ya 160 MPa. Chiŵerengero cha 175 MPa chimadziwika kwambiri ngati ntchito yothandiza kwambiri pa ntchito zothandizira zitsime komanso zolimbikitsa ndipo chimalandira chithandizo champhamvu kwa opanga, kupezeka kwa zida, komanso zomangamanga zosamalira anthu ena padziko lonse lapansi.

Kupanikizika 3: 250 MPa (36,000 psi) — Katswiri Wokhudza Kupanikizika Kwambiri

Kugwiritsa Ntchito Kawirikawiri kwa Mapampu a 250 MPa

Mapampu a 250 MPa (36,000 psi) ndi zida zapadera zomwe zimagwiritsidwa ntchito pazitsime zovuta kwambiri - madzi akuya, madzi akuya kwambiri, komanso malo osungiramo zinthu ovuta kwambiri komwe zida zachikhalidwe za UHP sizingakwanitse kukwaniritsa kupsinjika komwe kumafunikira kuti zitsime zigwire bwino ntchito kapena kuti zipangitse kuti zipangidwe bwino. Ntchito zazikulu ndi izi:

• Kuphulika kwa hydraulic m'madzi akuya kwambiri— Zitsime zamadzi akuya ndi akuya kwambiri zomwe zili ndi TVD yoposa mamita 5,500 zimafuna mphamvu zambiri zochizira pamwamba kuti zithetse zotsatira za mphamvu ya hydrostatic wellbore, kutayika kwa kupsinjika kwa machubu, ndi kuphulika kwa mapangidwe pakuya. Mapampu 250 MPa amafunikira kuti akwaniritse mphamvu zochizira dzenje la pansi la 180–230 MPa zomwe zimafunika m'malo osungiramo madzi awa.
• Zitsime za HPHT (High-Pressure High-Temperature)— Zitsime zokhala ndi mphamvu zopitilira 140 MPa ndi kutentha kopitilira 150°C zimakhala zovuta kwambiri kwa zida ndi antchito. Zipangizo 250 zoyesedwa ndi MPa zokhala ndi zisindikizo zapadera zotentha kwambiri komanso zitsulo ndiye chisankho choyenera chothandizira zitsime m'mikhalidwe iyi.
• Kukweza kwa hydraulic pansi pa nyanja— Mu ntchito za pansi pa nyanja yakuya, kuthamanga kwa hydraulic komwe kumaperekedwa kuchokera pamwamba kudzera mu umbilicals yayitali kumawonongeka kwambiri. Mapampu owonjezera 250 MPa-rated pa subsea distribution frame amalipira kutayika kumeneku ndikusunga kuthamanga kokwanira kwa hydraulic pa chida.
• Machitidwe apamwamba obowola— Makina ena obowola mabowo akuya amagwiritsa ntchito makina onyamulira oyendetsedwa ndi hydraulic omwe amafunikira mphamvu yamphamvu kwambiri kuti agwire ntchito modalirika. Mapampu 250 MPa-rated amapereka mphamvu yotsimikizika pazida zapaderazi.
• Kuyesa umphumphu wa zitsime za sour service goals— Zitsime zouma (zokhala ndi H₂S) zimafuna kuyesedwa kwa umphumphu nthawi ndi nthawi ku mphamvu zomwe zimatsimikizira umphumphu wa chitsime, mtengo wa Khirisimasi, ndi kumalizidwa kwa dzenje. Mapampu oyesera a 250 MPa amatsimikizira envelopu yokhala ndi mphamvu m'malo ovuta kwambiri ogwirira ntchito.

Makhalidwe Aukadaulo a Mapampu a MPa 250

Pampu ya hydraulic ya 250 MPa ndi njira yabwino kwambiri yopangira zinthu zomwe zimafuna miyezo yapamwamba kwambiri ya kapangidwe ka zinthu, kusankha zipangizo, kulondola kwa kupanga, komanso kutsimikizira khalidwe. Pa 250 MPa, mphamvu ya hoop mu mzere wamkati wa 10 mm m'mimba mwake imafika pafupifupi 625 MPa - zomwe zimafuna kugwiritsa ntchito chitsulo chosapanga dzimbiri cha super duplex, Inconel 625, kapena machubu a titanium alloy okhala ndi malipoti oyesera mphero ndi kuwunika kwa 100% NDT kwa weld iliyonse.

Zigawo zamadzimadzi za pampu — migolo, ma valve, mipando, ndi ma pistoni — nthawi zambiri zimapangidwa kuchokera ku zinthu zopanda mphamvu zopangira superalloy ndipo zimalandira chithandizo cha kutentha kwambiri, kuuma pamwamba, ndi kupukuta kuti zikwaniritse kulekerera kwa micron komwe kumafunikira kuti zitsekedwe modalirika pamavuto awa.ChifukwaNgati vuto lililonse la microscopic m'dera lomwe lili ndi nkhawa kwambiri lingafalikire pansi pa kudzaza kwa cyclic, zida za 250 MPa zimayesedwa kwambiri komanso kuyezedwa kuposa zida zina zilizonse za hydraulic, kuphatikiza kuyesa kwa hydrostatic proof test mpaka 1.25× rated pressure ndi kuyesa kwa acoustic emission kwa ma welds ofunikira.

Nthawi Yosankha 250 MPa

Tchulani pampu ya 250 MPa yokhala ndi mphamvu yothamanga kwambiri pokhapokha ngati zofunikira zaukadaulo za chitsime kapena chida chothandizira chikuifuna — makamaka, pamene mphamvu ya pansi pa dzenje ikuyembekezeka kupitirira 175 MPa kapena pamene machitidwe a hydraulic pansi pa nyanja amafunika mphamvu yowonjezera yoposa 200 MPa kuti athetse kutayika kwa umbilical friction pamadzi akuya opitilira mamita 2,500. Mtengo wogwirira ntchito komanso wachuma wa zida za 250 MPa — ndalama zambiri zogulira, zofunikira zosamalira zapadera, njira zochepetsera zogwirira ntchito, komanso kupezeka kochepa kwa zida ndi chithandizo chautumiki — zikutanthauza kuti siziyenera kutchulidwa ngati chisankho cha "over-spec" chogwiritsidwa ntchito nthawi zonse. Mtengo wapamwamba wa mphamvu ya 250 MPa yoposa 175 MPa nthawi zambiri umakhala 80–120%, ndipo mtengo wonse wa umwini kuphatikiza akatswiri odziwa ntchito ndi zofunikira zowunikira za NDT zitha kukhala zokwera kwambiri molingana.

Kuyerekeza kwa Kupanikizika kwa Mbali ndi Mbali

Momwe Mungadziwire Kupanikizika Koyenera Pantchito Yanu Yogwiritsa Ntchito Mafuta

Gawo 1 — Dziwani Kupanikizika Kwambiri Komwe Kukuyembekezeka kwa Wellbore (MEWP)

Poyambira kusankha mphamvu ya pampu ya UHP ndi kutsimikiza bwino kwa mphamvu ya pamwamba yomwe ikuyembekezeka ya Wellbore Pressure m'magawo onse a ntchito yomwe ikukonzekera. Izi ziyenera kuwerengera mphamvu ya reservoir pa kuya kwa cholinga, mphamvu ya hydrostatic ya mzati wamadzimadzi, mphamvu yofunikira kuti iyambe kusweka kapena kuchitapo kanthu, ndi kukwera kulikonse kwa mphamvu komwe kungachitike panthawi ya ntchito zosinthika monga kupukuta, kukwera kwa madzi, kapena kugwiritsa ntchito zida zoyesedwa ndi kupanikizika. MEWP iyenera kuwerengedwa kapena kuyerekezedwa pa chitsime chilichonse - malamulo wamba savomerezeka pamlingo wogwirira ntchito wa UHP.

Gawo 2 — Gwiritsani Ntchito Chitetezo Chofunikira

Miyezo yambiri yoyendetsera zitsime zamakampani akuluakulu amafuta imafuna chitetezo cha 1.25× pakati pa kuthamanga kwa mpweya komwe kumayikidwa pampu ndi kuthamanga kwa mpweya komwe kumakonzedwa. Kuphatikiza apo, njira zambiri zogwirira ntchito zimafuna kuti pampu ikhale ndi mphamvu yopereka MEWP pamlingo woyenda womwe umakwaniritsa zofunikira pakugwira ntchito - osati pamlingo wa zero wokha. Nthawi zonse onetsetsani kuti kugwedezeka kwa mpweya wa mpweya wa pampu pamlingo woyenda womwe umakonzedwa kumaperekabe malire okwanira kuposa MEWP.

Gawo 3 - Gwirizanitsani ndi Zida Zanu Zoyambira

Musanatchule pampu, yang'anani zida zanu zoyambira pansi ndikupeza chida chomwe chili ndi mphamvu zambiri mu zida zanu zogwirira ntchito. Pampu iyenera kukhala yokhoza kuyendetsa chida ichi pa mphamvu yayikulu yomwe chipangizocho chidzagwiritse ntchito - osati kokha pamalo omwe madzi amatuluka.ChifukwaKufunika kwa mphamvu yogwiritsira ntchito chida kumawonjezeka ndi mphamvu yogwiritsira ntchito chida (chidacho chiyenera kuthana ndi mphamvu yogwiritsira ntchito chida kuti chisunthe), mlingo wa pampu uyenera kupitirira kuchuluka kwa mphamvu yogwiritsira ntchito chidacho komanso kusiyana kwa mphamvu yogwiritsira ntchito chidacho.

Gawo 4 — Ganizirani za Ntchito Yanu ndi Chuma Chanu

Ngati kampani yanu yopereka mafuta imagwira ntchito m'zitsime zosiyanasiyana zomwe zimakhala ndi ma profiles osiyanasiyana opanikizika, chisankho cha ma pampu chiyenera kuganizira kukula kwa ma portfolio amenewo. Kampani yomwe imagwira ntchito m'zitsime zosaya kwambiri sizingafunike mphamvu ya 250 MPa. Komabe, kampani yomwe nthawi zina imalandira mapangano a zitsime zamadzi akuya kapena HPHT ingapeze kuti kusinthasintha kwa gulu la 175 MPa - ndi nthawi zina kubwereka kapena thandizo la akatswiri pazochitika za 250 MPa - kumabweretsa phindu labwino kuposa kugula pompo ya 250 MPa yomwe nthawi zambiri imagwira ntchito pansi pa mphamvu zake zomwe idapatsidwa.

Mafunso Ofunsidwa Kawirikawiri (Mafunso Ofunsidwa Kawirikawiri)

Kutsiliza: Lumikizani Pampu ndi Chitsime, Osati Mosiyana

Kuyeza kwa kuthamanga kwa pampu yanu ya hydraulic yokhala ndi mphamvu zambiri ndiye chinthu chofunikira kwambiri pakusankha pampu. Kuyeza mopitirira muyeso kumawonjezera mtengo wosafunikira komanso zovuta; kuyerekeza mopitirira muyeso kumabweretsa zoopsa zachitetezo komanso kulephera kugwira ntchito. Njira yolondola ndikuzindikira kuthamanga kwakukulu komwe kumayembekezeredwa pa ntchito yanu, kugwiritsa ntchito chitetezo chofunikira, kutsimikizira kuti zikugwirizana ndi zida zanu zoyambira, ndikusankha pampu yotsika kwambiri yomwe imapereka malire okwanira - osapitirira apo, osachepera. Mukatchula ma valve owongolera ogwirizana ndi zida za hydraulic za dongosolo lanu la pampu ya UHP, onetsetsani kuti dera lonse la hydraulic - kuyambira pampu kupita ku valavu mpaka pa actuator - lavoteredwa ndikutsimikiziridwa ngati dongosolo lophatikizidwa. limaphimba kuyeserera kogwirizana ndi ntchito za UHP oil field service ndipo limaphatikizapo mizere inayake yazinthu zopangidwa kuti zigwiritsidwe ntchito kwambiri pa ma hydraulic circuits.

Vicks Hydraulicimapanga mapampu a hydraulic amphamvu kwambiri okhala ndi mphamvu kuyambira 140 MPa mpaka 250 MPa, omwe amapereka ntchito zapamadzi, zankhondo, zamafakitale, ndi zamafuta m'mizere isanu ndi umodzi yopanga yapamwamba padziko lonse lapansi yokhala ndi mphamvu ya mapampu a vane oposa 80,000 pachaka. Mndandanda wazinthu zinazake umaphatikizapoMapampu amodzi a ABT Serieskugwiritsa ntchito mphamvu yapakati komansoMndandanda wa PV2Rkwa mafakitale omwe amafunidwa kwambiri. Zogulitsa zonse za Vicks Hydraulic zili ndi ziphaso za CCS, DNV, ABS, BV, ndi LR, ndipo gulu laukadaulo la kampaniyo lingathandize kusankha mapampu kutengera zomwe mukufuna komanso zofunikira pa ntchito.