Ukuqonda imisebenzi yokuphindaphinda ukubulala ezinhlelweni zokulawula imithombo

Embonini kawoyela negesi,ukulawula kahlekubalulekile ekuqinisekiseni ukuphepha nokusebenza kahle kwemisebenzi yokumba. Ibulala ngokuningiiyingxenye ebalulekile yohlelo lokulawula umthombo futhi idlala indima ebalulekile ekulawuleni ukucindezela komthombo kanye nokuvimbela ukuqhunyiswa. Ukuqonda ukuthi kanjaniinqwaba yokubulalaimisebenzi ibalulekile kunoma ubani obambe iqhaza emisebenzini yokumba. Kule bhulogi, sizobheka ngokujulile ukusebenza nokusebenza kwenqwaba yokubulala ohlelweni lokulawula umthombo.

I-manifold yokubulala iyisisetshenziswa esibalulekile esisetshenziselwa ukulawula ingcindezi ye-wellbore ekusebenzeni kokulawula umthombo. Ivamise ukufakwa phakathi kwe-bloutout preventer (BOP) kanye nokuminya okuningana. Umsebenzi oyinhloko wenqwaba yokubulala uwukunikeza indlela yokujova uketshezi olusindayo, olufana nokumba udaka noma uketshezi olukhethekile lokubulala, emthonjeni ukuze ulawule umfutho womthombo futhi ekugcineni uphinde ukwazi ukulawula umthombo.

Ngesikhathi sokumba, ukunyuka kwengcindezi okungalindelekile noma ukuthutheleka koketshezi okwakheka emthonjeni kungase kwenzeke, okuthi, uma kungalawulwa kahle, kuphumele ekuqhumeni. Kulokhu, i- kill manifold iqala ukusebenza. Ngokuphambukisa ukugeleza koketshezi olusuka emthonjeni luyeinqwaba yokubulala, uketshezi olusindayo lungaphonswa emthonjeni ukuze kuncishiswe ukucindezela futhi kuphinde kulawuleke.

Ubuningi bokubulala ngokuvamile buqukethe uchungechunge lwamavalvu, ukuklinywa namapayipi enzelwe ukuphatha uketshezi olunomfutho ophezulu. Leziama-valveasetshenziselwa ukulawula ukugeleza koketshezi futhi ahlukanise izingxenye ezihlukene ze-manifold njengoba kudingeka. Ukuklinywa kusetshenziselwa ukulawula ukugeleza nokucindezela koketshezi olujova emthonjeni. Amapayipi aklanyelwe ukumelana nezimo zengcindezi ephezulu futhi aqinisekise ukudluliswa okuphephile koketshezi.

Ukusebenza kwezinhlobo eziningi zokubulala kudinga umzamo ohlangene phakathi kwezisebenzi ezimbayo nethimba elilawula umthombo. Uma kutholwa umfutho ophakeme, isivimbeli sokuvuthela siyavala ukuze sihlukanise umthombo bese kucushwa ubuningi bokubulala. Uketshezi olusindayo lube seluphonswa endaweni eningi yokubulala kanye nasemthonjeni ukuze kuncishiswe ukukhuphuka komfutho. Ukulungisa i-valve yokuklinya ku-multifold kill kulawula ukugeleza nokucindezela koketshezi olujovwe, okuvumela ithimba elilawula umthombo ukuthi kancane kancane liphinde lilawule umthombo.

Ngokungeziwe ekulawuleni ukukhahlela kwengcindezi, iziphindaphinda zokubulala zisetshenziselwa imisebenzi yokulawula umthombo njengokuvala nokubulala imithombo. Uma kwenzeka kuqhunyiswa umoya, ukuphindaphindeka kokubulala kudlala indima ebalulekile ekulawuleni kabusha umthombo nokuvimbela ukwanda okwengeziwe.

Kafushane, ubuningi bokubulala buyingxenye ebalulekile yesistimu yokulawula umthombo, ehlinzeka ngendlela yokujova uketshezi olusindayo emgodini womthombo ukulawula ukucindezela nokuvimbela ukufutheka. Ukuqonda ukuthi kanjanibulala inqwabaumsebenzi kanye neqhaza labo ekusebenzeni kokulawulwa kwemithombo kubalulekile ekuqinisekiseni ukuphepha nempumelelo yokusebenza kokumba embonini kawoyela negesi.