Ukwahlulahlula kunye nokukhethwa kwesixhobo sokuthintela ukuqhushumba

Esona sixhobo sibalulekileyo sokuqonda ukusebenza kwezixhobo zokulawula umngxuma, ukufakela nokugcina ngokuchanekileyo, nokwenza izixhobo zokulawula umngxuma zisebenze kakuhle sisithinteli sokuqhuma. Kukho iintlobo ezimbini zezithinteli zokuqhuma eziqhelekileyo: isithinteli sokuqhuma kweringi kunye nesithinteli sokuqhuma kweram.

1. Isithinteli seringi

(1) Xa kukho umtya wepayipi emthonjeni, isiseko serabha singasetyenziselwa ukuvala isithuba esijikelezileyo esenziwe ngumtya wepayipi kunye nentloko yomthombo;

(2) Intloko yomthombo ingavalwa ngokupheleleyo xa umthombo ungenanto;

(3) Kwinkqubo yokugrumba nokugaya, ukugaya iikheyiji, ukugawula imithi kunye nokuloba phantsi, xa kuphuphuma amanzi okanye kuqhume kakhulu, ingayivala indawo eyenziwe yi-kelly pipe, intambo, intambo yocingo, izixhobo zokuphatha ingozi kunye nentloko yomthombo;

(4) Ngolawulo lokunciphisa uxinzelelo okanye indawo yokugcina amandla encinci, inokunyanzela umbhobho odibeneyo odibeneyo ngaphandle kwebhanti elincinci kwi-18°;

(5) Kwimeko yokugcwala okukhulu okanye ukuqhushumba okukhulu, isetyenziselwa ukuvala okuthambileyo nge-ram BOP kunye ne-throttle manifold.

2. Umthinteli wokuqhushumba kweRam

(1) Xa kukho izixhobo zokumba emthonjeni, i-ram etywiniweyo isiqingatha ehambelana nobukhulu besixhobo sokumba ingasetyenziselwa ukuvala isithuba seringi yentloko yomthombo;

(2) Xa kungekho sixhobo sokugrumba equleni, i-ram yokuvala epheleleyo inokuyivala ngokupheleleyo intloko yomthombo;

(3) Xa kuyimfuneko ukusika isixhobo sokugrumba emthonjeni kunye nokuvala intloko yomthombo ngokupheleleyo, i-shear ram ingasetyenziselwa ukusika isixhobo sokugrumba emthonjeni kunye nokuvala intloko yomthombo ngokupheleleyo;

(4) I-ram yezinye izithinteli zokuqhushumba kwe-ram ivumela ukuba ithwale umthwalo kwaye ingasetyenziselwa ukuxhoma izixhobo zokugrumba;

(5) Kukho umngxuma osecaleni kwiqokobhe le-ram BOP, onokusebenzisa ukukhululeka koxinzelelo lwe-throttling hole esecaleni;

(6) I-Ram BOP ingasetyenziselwa ukuvala umngxuma ixesha elide;

3.Ukukhethwa kweendibaniselwano ze-BOP

Izinto eziphambili ekufuneka ziqwalaselwe ekukhetheni indibaniselwano yokuthintela ukuqhushumba kwe-hydraulic zezi: uhlobo lomthombo, uxinzelelo lokwakheka, ubungakanani bekheyiji, uhlobo lolwelo lokwakheka, impembelelo yemozulu, iimfuno zokhuseleko lokusingqongileyo, njl.

(1) Ukukhetha inqanaba loxinzelelo

Ixhomekeke kakhulu kuxinzelelo oluphezulu lwentloko yemithombo ekulindeleke ukuba indibaniselwano ye-BOP imelane nayo. Kukho amanqanaba oxinzelelo amahlanu e-BOP: 14MPa, 21MPa, 35MPa, 70MPa, 105MPa, 140MPa.

(2) Ukukhetha indlela

Ububanzi bomdibaniso we-BOP buxhomekeke kubungakanani bekhava kuyilo lwesakhiwo somngxuma, oko kukuthi, kufuneka ibe nkulu kancinci kunobubanzi bangaphandle bekhava enamathele kuyo. Kukho iintlobo ezilithoba zobubanzi bokuthintela ukuqhushumba: 180mm, 230mm, 280mm, 346mm, 426mm, 476mm, 528mm, 540mm, 680mm. Phakathi kwazo, 230mm, 280mm, 346mm kunye ne-540mm zisetyenziswa kakhulu ebaleni.

(3) Ukukhetha ifomu yokudibanisa

Ukukhethwa kwefom yokudibanisa kusekelwe ikakhulu kuxinzelelo lokwakheka, iimfuno zenkqubo yokubhola, ulwakhiwo lwesixhobo sokubhola kunye neemeko ezixhasa izixhobo.