API 7-1 Drilling IiValufa zeMitya ebonisiweyo

API 7-1 Drilling IiValufa zoMtya

Inkcazelo emfutshane:

Iivalvu zemitya yokubhola zimisa ulwelo ukuba lungaphumi lunyuke ngomtya wokubhola rhoqo ukuba i-drill ikhaba ngentwana ezantsi. I-LANDRILL inokubonelela ngexabiso leprimiyamu yomgangatho wokhuseleko wokuvula ngokupheleleyo ivelufa (i-FOSV), ivalve ye-Kelly, isithinteli sokuvuthela ngaphakathi (IBOP), ivalve yokungena ngaphakathi. , Ivalve yokudada.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

IValve yoKhuseleko oluVulekileyo (FOSV)

Ivalve yoKhuseleko eVula ngokuPheleleyo (imfutshane kwiFOSV) luhlobo lwebhola ivelufa yokhuseleko esetyenziselwa ukumisa ukuphuma komtya wokukrola xa umtya wokubhola utsalwa equleni.

I-FOSV yivalvu yokhuseleko evula umzimba ombini, ngoko ke ayiphazamisi ukusebenza kwezixhobo ezifana nemigqomo engundoqo okanye izixhobo zovavanyo. Yenzelwe ukuba ihlatywe kumphezulu wombhobho wokubhoboza okanye umtya wetyhubhu emgangathweni kwaye ivalwe ngokukhawuleza xa kunokwenzeka ukuba iqula likhabe.

Xa u-odola nceda ucacise:
Uqhagamshelwano.
OD kunye nesazisi
Uxinzelelo lokuSebenza: 5,000 / 10,000 / 15,000 PSI;

Kelly valve

Ivalve yeKelly ikwabizwa ngokuba yiKelly cock okanye ivalve eGrey. Yivalvu yokulawula isandla kwinkqubo yokujikeleza komtya kwaye sesinye sezixhobo ezisebenzayo zokuthintela ukuvuthela. Ivalve yeKelly yohlulwe yaba yiValve yeKelly ePhezulu kunye neValve yeKelly esezantsi. IValve yaseKelly ePhezulu idityaniswe ne-swivel sub kunye neKelly. Ivalve yeKelly esezantsi idityaniswe nesiphelo esisezantsi sikaKelly kunye nomphezulu wombhobho wokubhoboza okanye isiphelo esisezantsi seKelly gcina sub. Ukujikelisa isitshixo sevalve yokhuseleko lokuvula ngokupheleleyo yi-90° ukuqonda ukulayita nokuvala. Kumsebenzi wokugrumba, ukuze kuthintelwe iingozi eziyingozi, iivalvu zeKelly kufuneka ziqhagamshelwe kuzo zombini iziphelo zeKelly ukunqanda ilahleko yokugrumba i-flid kunye nokuvuthela. Ivalve ye-Kelly cock, eyivalve yebhola eqhutywa ngesandla kwi-ID yomtya wokubhola, Sesinye sesixhobo esisebenzayo sokuthintela ukuvuthela.

Iqhude le-kelly lahlulwe laba yivalve ye-kelly cock kunye ne-kelly cock esezantsi.
Iqhude elingasentla le-kelly lidityaniswe nesiphelo esisezantsi se-swivel kunye nesiphelo esiphezulu se-kelly. Umqhagi we-kelly ongezantsi udityaniswe nesiphelo esiphezulu sombhobho wokubhola kunye nesiphelo esisezantsi se-kelly okanye sidityaniswe phakathi kwesiphelo esisezantsi se-kelly saver subs.
Umqhagi we-kelly unomsebenzi olula, umqhagi we-kelly unokuvulwa okanye ucinywe ngokujika kuphela isipanela esikhethekileyo se-operationg kwi-90 degrees ngokubonisa icala. Ngexesha lokugrumba iqhude lekelly liya kudityaniswa kwindawo ephezulu nasezantsi kwe kelly.

Xa u-odola nceda ucacise:
Uhlobo oluPhezulu okanye olusezantsi;
Isixhobo se-OD;
Uxinzelelo lokuSebenza: 5,000 / 10,000 / 15,000 PSI;
Uqhagamshelo lwesixhobo.

Ngaphakathi kwe-BOP

I-Inside blowout preventer (Ngaphakathi kwe-BOP) sisixhobo esikhethekileyo, esinokuvulwa nge-BOP preempt ukuba idityaniswe nezixhobo zokugaya ezongezelelweyo ngokukhawuleza, xa ukuqhuma kwenzeka ngexesha lokuphakamisa izixhobo zokugaya, umkhuseli wangaphakathi wokubhobhoza unezinto ezininzi. izinto eziluncedo ezifana noxinzelelo oluphezulu, olutywiniweyo oluthembekileyo, olulula ukusebenza, tshintsha ngokukhawuleza njalo njalo.

Xa u-odola nceda ucacise:
Isixhobo se-OD;
Uxinzelelo lokuSebenza: 5,000 / 10,000 / 15,000 PSI;
Uqhagamshelo lwesixhobo.

Ngexesha isixhobo sokubhobhoza siphuma emngxunyeni, ukuvuthuza kwenzeka ngenxa yesiphumo sokufunxa, Xa ulwelo, i-oyile, umphunga okanye amanzi ephuma kumbhobho wokubhobhoza okhutshiweyo, umthinteli wokuvuthela ngaphakathi kufuneka uqhagamshelwe ngokukhawuleza kumbhobho wokubhola, ngaphakathi. Isithinteli sokuvuthela sinokudityaniswa lula kumbhobho wokubhoboza ngenxa yokuba ivalve yesithinteli sokuvuthela ikwindawo evulekileyo kwaye ulwelo olukumngxunya ongezantsi lunokuphumela ngaphandle ngaphakathi kwesithinteli sokuvuthela sikwindawo evulekileyo kwaye ulwelo olukumngxuma osezantsi lunokuphumela ngaphandle. Isithinteli sangaphakathi sokuvuthela, intonga yoncedo inokuvala ivalve ngokukrola ibholithi yokutshixa, okwangoku, isithinteli sangaphakathi sokuvuthela sivumela ulwelo ukuba lumpontshwe emngxunyeni ukusuka phezulu ukuya ezantsi, kodwa ulwelo olusemngxunyeni alukwazi ukungena ngaphakathi. Umtya wokubhola kwaye ekugqibeleni uphume uphume ngaphakathi kokuthintela ukuvuthela Emva koko injongo yokuthintela ukuvuthela ifikeleleke ngala manyathelo alandelayo, Khupha i-relief sub lawula ulwelo kwaye uqalise ukujikeleza kwempompo.

Ivalve yokujonga i-drop-in

I-Drop-In Check Valves ikhusela ukuhamba okubuyayo ngexesha lokukhaba kwaye ifanelekile kwiimeko ezininzi zokomba apho ukubuyiswa kwembuyekezo ngentambo yokubhoboza kuyingozi kwaye umsebenzi oqhelekileyo ufuna inzuzo ye-sub-bore sub. Ngokuthintela ukunyuka okunyukayo kumbhobho wokubhobhoza, kodwa ukuvumela ulwelo ukuba luphonswe phantsi ukuze lujikeleze iqula, iivalvu zibonelela umqhubi ngeendlela zokulawula uxinzelelo lwemibhobho yokubhobhoza xa kuyimfuneko, ukuphucula kakhulu kunye nokwenza lula ulawulo lomthombo.

Xa kuza kwenzeka ukuvuthela, udibaniso lwemisonto yekelly lukhutshwa ngoko nangoko kwaye lubeke ivalve yokukhangela kumbhobho wokubhobhoza emva koko impompelwe ezantsi ukuya kwindawo efunekayo. Ngaloo ndlela ukuvuthela kunokuthintelwa.

Xa uodola nceda ucacise
Elona bhobho lincinci kumtya wokubhola ekufuneka ivalve yokutshekisha idlule.
Ubungakanani boxhulumaniso olusezantsi lokufika kunye nohlobo.
Ngaphandle kwedayimitha yezixhobo zokukhwelana.

Ivalve yokudada

Ivalve edadayo inqanda ukugrumba ulwelo, ukusika kunye nobutyobo besinyithi ekubeni bubuye bubuyele kumtya wokubhola. Xa ifakelwe ngokuchanekileyo kumtya wokubhola ezi zivalo zibonelela ngothintelo olongezelelweyo lokuvuthela.

Ivalve edadayo ingasetyenziswa naphi na ukusuka phezulu ukuya ezantsi kumtya wokubhola. Yeyona ndawo ixhaphakileyo ikwi-BHA (indibano esezantsi yomngxuma) ebandakanya isuntswana, kwaye ingabandakanya intwana encinci, kufutshane ne-bit stabilizer, ezinye izizinzi, i-float sub, i-cross-over sub, i-motor yodaka (i-top sub), i-collar drill, kunye ne-drillpipe. Iivalvu ezininzi zinokusetyenziswa kumtya omnye, nangona ukupakishwa kabini akukhuthazwa ngenxa yomonakalo onokwenzeka kwivalve yokudada kwiimeko zoxinzelelo oluphezulu. Endaweni yoko, yahlula iivalve kwiindawo ezahlukeneyo zesixhobo.

I-Drill Pipe (DP) Iivalvu zokudada ziyafumaneka kwinkonzo eqhelekileyo, i-H2S – 300°F inkonzo (HNBR/HSN) kunye ne-H2S – 400°F inkonzo (Viton.)

Umzekelo F, FA:1R, 1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R, 5F6R, kunye 6F
Umzekelo G, GA, GC:1F2R, 2F3R, 3F, 3½ IF, 4R, 4F, 5R kunye ne5F6R

Xa u-odola nceda ucacise:
Uhlobo lwevalve yokudada (iModeli F okanye iModel G);
ubungakanani ivelufa edadayo;
Uqhagamshelwano kunye ne-OD yesub.