I-API 7-1 Drilling String Valves

Incazelo emfushane:

Amavalvu ezintambo zokubhoboza avimba uketshezi ukuthi lungagelezi luye phezulu kwentambo yokubhoboza kaningi uma i-drill ikhahlela kancane kancane. , I-valve yokuntanta.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

I-Full Opening Safety Valve (i-FOSV)

Ivalvu Yokuphepha Evula Ngokugcwele (ifushane ku-FOSV) iyivalvu yokuphepha yohlobo lwebhola esetshenziselwa ukumisa ukugeleza ngentambo yokubhoboza lapho intambo yokubhoboza ikhishwa emthonjeni.

I-FOSV iyi-valve yokuphepha evula umzimba ekabili evula ngokugcwele, ngakho ayiphazamisi ukusebenza kwamathuluzi njengemiphongolo eyinhloko noma amathuluzi okuhlola. Iklanyelwe ukuba igwazwe engxenyeni engaphezulu yepayipi lokubhoboza noma intambo yokubhoboza phansi futhi ivalwe ngokushesha uma kwenzeka kukhahlelwa umthombo.

Uma u-oda sicela ucacise:
Ukuxhumana.
OD kanye ne-ID
Ingcindezi Yokusebenza: 5,000 / 10,000 / 15,000 PSI;

I-valve kaKelly

I-valve ye-Kelly ibizwa nangokuthi i-Kelly cock noma i-valve empunga. Kuyivalvu yokulawula isandla ohlelweni lokujikeleza kwezintambo zokubhoboza futhi ingelinye lamathuluzi asebenzayo okuvimbela ukuvuthuza. I-valve ye-Kelly ihlukaniswe i-Upper Kelly Valve kanye ne-Lower Kelly Valve. I-Upper Kelly Valve ixhunywe ne-swivel sub kanye ne-Kelly. I-Lower Kelly valve ixhunywe nengxenye engezansi ye-Kelly nangaphezulu kwepayipi lokubhoboza noma indawo engezansi ye-Kelly save sub. Ukuzungezisa isikrufu sevalvu yokuphepha evulekile egcwele engu-90° ukuze ibone ukukhanya nokuvala. Emsebenzini wokumba, ukuze kugwenywe izingozi eziyingozi, ama-valve e-Kelly kufanele axhunywe kuzo zombili iziphetho ze-Kelly ukuze kuvinjelwe ukulahleka kokubhoboza nokuqhunyiswa kwe-bloom. I-Kelly cock valve, okuyivalvu yebhola esebenza ngesandla ngo-ID wentambo yokubhoboza, Ingenye yethuluzi elisebenzayo lokuvikela ekuqhumeni.

Iqhude le-kelly lihlukaniswe laba yi-upper kelly cock valve kanye ne-low kelly cock.
Iqhude le-kelly elingenhla lixhunywe nomkhawulo ongezansi we-swivel kanye nomkhawulo ongaphezulu we-kelly. Iqhude le-kelly elingezansi lixhunywe nomkhawulo ongaphezulu wepayipi lokubhoboza kanye nomkhawulo ongezansi we-kelly noma uxhunywe phakathi komkhawulo ophansi we-kelly saver subs.
Iqhude le-kelly linomsebenzi olula, iqhude le-kelly lingavulwa noma Licishwe ngokuvula isipanela esikhethekile sokusebenza sibe ngamadigri angu-90 ngokukhomba indlela. Ngesikhathi sokumba iqhude le-kelly kufanele lixhunywe ekugcineni nangaphansi kwe-kelly.

Uma u-oda sicela ucacise:
Uhlobo Oluphezulu noma Oluphansi;
Ithuluzi OD;
Ingcindezi Yokusebenza: 5,000 / 10,000 / 15,000 PSI;
Uxhumano lwethuluzi.

Ngaphakathi kwe-BOP

I-Inside blowout preventer (Ngaphakathi kwe-BOP) iyithuluzi elikhethekile, elingafakwa imithende ngokusebenzisa i-BOP preempt ukuze ixhunywe namathuluzi okumba angeziwe ngokushesha ngangokunokwenzeka, lapho ukuqhuma kwenzeka ngesikhathi sokuphakamisa amathuluzi okumba, isivimbeli sangaphakathi sokubhoboza sinezinto eziningi. izinzuzo ezifana ne-high-pressure, ivaliwe ethembekile, kulula ukuyisebenzisa, shintsha ngokushesha njalonjalo.

Uma u-oda sicela ucacise:
Ithuluzi OD;
Ingcindezi Yokusebenza: 5,000 / 10,000 / 15,000 PSI;
Uxhumano lwethuluzi.

Ngesikhathi ithuluzi lokubhoboza liphuma emgodini, ukuqhuma kwenzeka ngenxa yomphumela wokudonsa, Lapho uketshezi, uwoyela, umusi noma amanzi ephuma epayipini lokubhoboza elilahliwe, isivimbeli sokubhoboza sangaphakathi kufanele sixhunywe ngokushesha epayipini lokubhoboza, Ngaphakathi. isivimbeli sokubhoboza singaxhunywa kalula epayipini lokubhoboza ngenxa yokuthi i-valve yesivimbeli sokubhoboza isendaweni evulekile futhi uketshezi oluphuma emgodini ongezansi lungageleza luphume ngaphakathi kwesivimbeli sokubhoboza sisendaweni evulekile futhi uketshezi oluphuma emgodini ongezansi lungaphuma. yesivimbeli se-bloout yangaphakathi, Induku yokukhulula ingavala i-valve ngokukhipha ibhawodi lokukhiya, njengamanje, isivimbeli sangaphakathi sokuvuthela sivumela uketshezi ukuthi luphonswe embobeni ukusuka phezulu kuye phansi, kodwa uketshezi olungaphakathi kwembobo alukwazi ukugelezela ngaphakathi. I-drill string futhi ekugcineni igeleze iphume ngaphakathi kwesivimbeli sokuvuthela Khona-ke inhloso yokuvimbela iveni yokuvimbela i-blowout ingafinyelelwa ngezinyathelo ezilandelayo, Khipha ingxenye yokusiza lawula uketshezi bese uqala ukujikeleza kwepompo.

I-valve yokuhlola yokungena

Amavalvu Okuhlola Okwehliselwa Ngaphakathi avimbela ukugeleza kokubuyisela ngesikhathi sokukhahlela futhi afaneleka ezimweni eziningi zokumba lapho ukugeleza kokubuyisela ngentambo yokubhoboza kuyingozi futhi ukusebenza okuvamile kudinga izinzuzo ze-sub-bore sub. Ngokuvimbela ukugeleza okuya phezulu ngepayipi lokubhoboza, kodwa ngokuvumela uketshezi ukuba lumpontshelwe phansi ukuze lujikeleze umthombo, amavalvu anikeza umshini wokubhoboza indlela yokulawula ukucindezela kwepayipi lokubhoboza lapho kudingekile, athuthukise kakhulu futhi enze lula ukulawula umthombo.

Uma kuzokwenzeka ukuvunguza, ukuxhunywa kwentambo ye-kelly kukhishwa ngokushesha bese kufakwa ivalve yokuhlola ibe epayipini lokubhoboza bese iphonswa phansi iye endaweni edingekayo. Ngaleyo ndlela ukuqhuma kungavinjelwa.

Uma u-oda sicela ucacise
Ibhobo elincane kunawo wonke entanjeni yokubhoboza okufanele kudlule kuyo ivalvu yokuhlola.
Usayizi woxhumano oluncane lokufika kanye nohlobo.
Ububanzi obungaphandle bamalunga ethuluzi lokukhwelana.

I-valve yokuntanta

I-valve yokuntanta ivimbela uketshezi lokumba, ama-cuttings kanye nemfucumfucu yensimbi ukuthi ingagelezi ikhuphukele phezulu entanjeni yokubhoboza. Uma efakwe kahle entanjeni yokubhoboza lawa mavalvu ahlinzeka ngokuvimbela ukuvuthela okwengeziwe.

I-valve yokuntanta ingasetshenziswa noma kuphi ukusuka phezulu kuye phansi kwentambo yokubhoboza. Indawo ejwayeleke kakhulu ukuyo kuse-BHA (umhlangano wembobo engezansi) ohlanganisa i-bit, futhi ingafaka ingxenye encane, eduze ne-bit stabilizer, ezinye iziqinisi, i-float sub, i-cross-over sub, i-motor yodaka (i-top sub), ikhola yokubhola, kanye ne-drillpipe. Ama-valve amaningi okuntanta angasetshenziswa entanjeni eyodwa, nakuba ukunqwabelanisa okuphindwe kabili akunconywa ngenxa yokulimala okungenzeka ku-valve yokuntanta ezimweni zengcindezi ephezulu. Kunalokho, hlukanisa ama-valve emalungeni amathuluzi ahlukene.

Amapayipi okuDrill (DP) ama-valve antantayo ayatholakala ngesevisi ejwayelekile, isevisi ye-H2S – 300°F (HNBR/HSN) kanye nesevisi ye-H2S – 400°F (Viton.)

Imodeli F, FA:1R, 1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R, 5F6R, kanye ne-6F
Imodeli G, GA, GC:1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R kanye ne-5F6R

Uma u-oda sicela ucacise:
Uhlobo lwe-valve ye-float (I-Model F noma i-Model G);
Usayizi we-valve ye-float;
Ukuxhumana kanye ne-OD ye-sub.