API 7-1 Drilling String Valves

Kufotokozera Kwachidule:

Mavavu a zingwe zobowola amaletsa madzi kutuluka mmwamba chingwe chobowola nthawi zambiri ngati kubowola kukankhira pang'ono pansi.LANDRILL imatha kupereka valavu yachitetezo chokwanira (FOSV), valavu ya Kelly, Chotsekereza mkati mkati (IBOP), valavu yolowera mkati. , Vavu yoyandama.

Titumizireni imelo

Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Valve Yonse Yotsegulira Chitetezo (FOSV)

Valve Yonse Yotsegulira Chitetezo (yachidule kwa FOSV) ndi valavu yachitetezo yamtundu wa mpira yomwe imagwiritsidwa ntchito kuletsa kuyenda kudzera pa chingwe chobowola pamene chingwe chobowola chikuchotsedwa pachitsime.

FOSV ndi valavu yachitetezo chapawiri yotsegulira zonse, motero sichisokoneza kugwiritsa ntchito zida monga migolo yapakati kapena zida zowunikira.Yapangidwa kuti ibayidwe pamwamba pa chitoliro chobowola kapena chingwe cha chubu pansi pazitsulo ndikutsekedwa mwamsanga ngati chitsime chikankha.

Mukamayitanitsa chonde tchulani:
Kulumikizana.
OD ndi ID
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;

Valve ya Kelly

Valve ya Kelly imatchedwanso Kelly cock kapena Gray valve.Ndi valavu yowongolera pamanja mu makina obowola makina ozungulira ndipo ndi chimodzi mwazinthu zothandiza kupewa kuphulika.Valve ya Kelly imagawidwa kukhala Upper Kelly Valve ndi Lower Kelly Valve.Upper Kelly Valve yolumikizidwa ndi swivel sub ndi Kelly.Valavu Yotsika ya Kelly imalumikizidwa ndi kumapeto kwenikweni kwa Kelly ndi pamwamba pa chitoliro chobowola kapena kumapeto kwa Kelly save sub.Kutembenuza wrench ya valavu yotsegulira yotetezeka 90 ° kuti muzindikire ndikuyatsa.Pobowola, pofuna kupewa ngozi zowopsa, ma valve a Kelly akuyenera kulumikizidwa kumapeto kwa Kelly kuti asatayike ndikubowola.Valavu ya Kelly cock, yomwe ndi valavu ya mpira yomwe imayendetsedwa pamanja ndi ID ya chingwe chobowola, Ndi imodzi mwazothandiza popewera kuphulika.

Tambala wa kelly amagawidwa kukhala valavu ya tambala ya kelly ndi tambala wapansi wa kelly.
Tambala wapamwamba wa kelly amalumikizidwa ndi kumapeto kwa swivel ndi kumtunda kwa kelly.Tambala wam'munsi wa kelly amalumikizidwa ndi kumtunda kwa chitoliro chobowola ndi kumapeto kwa kelly kapena kulumikizidwa pakati pamunsi pamunsi pa kelly saver subs.
Tambala wa kelly amakhala ndi opareshoni yosavuta, tambala wa kelly amatha Kuwomberedwa kapena Kusinthidwa pongotembenuza sipanala yapadera ya opaleshoniyo pa madigiri 90 molingana ndi komwe akulozera.Pobowola tambala wa kelly ayenera kulumikizidwa kumtunda ndi kumapeto kwa kelly.

Mukamayitanitsa chonde tchulani:
Mtundu Wapamwamba kapena Wapansi;
Chida OD;
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;
Chida cholumikizira.

Mkati mwa BOP

M'kati mwa blowout blocker (Mkati BOP) ndi chida chapadera, chomwe chingathe kudulidwa kudzera mu BOP preempt kuti chigwirizane ndi zida zowonjezera zobowola mwamsanga, pamene kuphulika kumachitika panthawi yokweza zida zobowola, cholepheretsa mkati chowombera chimakhala ndi zambiri. ubwino monga kuthamanga kwambiri, kusindikizidwa kodalirika, kosavuta kugwira ntchito, kusinthana mofulumira ndi zina zotero.

Mukamayitanitsa chonde tchulani:
Chida OD;
Kupanikizika kwa Ntchito: 5,000 / 10,000 / 15,000 PSI;
Chida cholumikizira.

Chida chobowola chikutuluka mu dzenje, kuphulika kumachitika chifukwa cha kuyamwa, Pamene madzi, mafuta, nthunzi kapena madzi akutuluka kuchokera ku chitoliro chobowola, chotchinga chamkati chiyenera kulumikizidwa mwamsanga ndi chitoliro chobowola, mkati. Chotchinga cha blowout chimatha kulumikizidwa mosavuta ndi chitoliro chobowola chifukwa valavu ya blowout preventer ili pamalo otseguka ndipo madzi omwe ali m'bowo amatha kutuluka mkati mwake chotchingira chotchinga chimakhala chotseguka ndipo madzi omwe amalowa pansi amatha kutuluka. Woteteza mkati, Ndodo yothandizira imatha kutseka valavu potulutsa boti lotsekera, pakali pano, chotchinga chamkati chamkati chimalola kuti madziwo apopedwe mu dzenje kuchokera pamwamba mpaka pansi, koma madzimadzi a mu dzenje sangathe kulowa mkati. kubowola chingwe ndipo potsiriza kutuluka kunja kwa blowout blocker Kenako cholinga chopewera kuphulika chifikire ndi masitepe otsatirawa, Tulutsani gawo lothandizira kuwongolera madzi ndi kuyambitsa kufalikira kwa mpope.

Valve yolowera mkati

Drop-In Check Valves amalepheretsa kubwereranso panthawi ya kukankha ndipo ndi oyenera nthawi zambiri zobowola momwe kubwerera kumayenda kudzera pa chingwe chobowola kumakhala pachiwopsezo ndipo kugwira ntchito kwanthawi zonse kumafuna phindu la sub-bore sub.Poletsa kutuluka kwa m'mwamba kudzera mu chitoliro chobowola, koma kulola kuti madzi aziponyedwa pansi kuti ayendetse chitsime, mavavu amapereka njira yoyendetsera chitoliro chobowola pakufunika, kuwongolera kwambiri ndi kuphweka kuwongolera bwino.

Pamene kuphulika kudzachitika, zolumikiza ulusi wa kelly amazimitsa nthawi yomweyo ndipo ikani valavu yoyang'ana mu chitoliro chobowola ndikuponyera pansi kupita kumalo ofunikira. Choncho kuphulika kungalephereke.

Mukamayitanitsa chonde tchulani
Chingwe chaching'ono kwambiri chobowola chomwe valavu iyenera kudutsamo.
Kukwera sub kugwirizana kukula ndi mtundu.
Kunja awiri a mating chida mfundo.

Vavu yoyandama

Vavu yoyandama imalepheretsa madzi obowola, kudula ndi zinyalala zazitsulo kuti zisabwererenso m'mwamba pa chingwe chobowola.Mukayika bwino pa chingwe chobowola mavavuwa amapereka chitetezo chowonjezera kuphulika.

Valavu yoyandama imatha kugwiritsidwa ntchito paliponse kuchokera pamwamba mpaka pansi pobowola.Malo omwe amapezeka kwambiri ali mu BHA (msonkhano wapansi pa dzenje) womwe umaphatikizapo pang'ono, ndipo sungaphatikizepo pang'ono, pafupi ndi pang'ono stabilizer, stabilizers ena, float sub, cross-over sub, motor motor (top sub), kubowola kolala, ndi drillpipe.Ma valve oyandama angapo angagwiritsidwe ntchito mu chingwe chimodzi, ngakhale kuti kuyika pawiri sikuvomerezeka chifukwa cha kuwonongeka kwa valve yoyandama pazovuta kwambiri.M'malo mwake, alekanitse ma valve mumagulu osiyanasiyana a zida.

Drill Pipe (DP) Ma valve oyandama amapezeka kuti azigwiritsidwa ntchito, H2S - 300 ° F service (HNBR/HSN) ndi H2S - 400 ° F service (Viton.)

Chitsanzo F, FA:1R, 1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R, 5F6R, ndi 6F
Model G, GA, GC:1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R ndi 5F6R

Mukamayitanitsa chonde tchulani:
Mtundu wa valve yoyandama (Model F kapena Model G);
Kukula kwa vavu yoyandama;
Kugwirizana ndi OD ya sub.