Konke malunga neePaki

Isipakishi sikholisa ukusetwa kanye ngentla kwendawo yokuvelisa ukwahlula isithuba sokuvelisa ukusuka kwi-annulus ye-casing okanye kwiindawo zokuvelisa kwenye indawo kumthombo.

Xa kugqityezelwa imingxuma enecala, ingxowa yemveliso iqhutywa kubo bonke ubude bequla kunye nedama. Umngxuma owenziweyo usebenza ngokufanelekileyo njengendlela yokulawula ukuveliswa ngokukhuselekileyo kweehydrocarbons ezifunwayo kwaye njengomqobo othintela ukubuyiselwa kolwelo olungafunwayo, iigesi, kunye nezinto eziqinileyo kumthombo womthombo.

Emva kokuba umtya we-drill ususiwe, ukudityaniswa okuqhubekayo kwee-casings zobubanzi obuhlukeneyo kuqhutyelwa emthonjeni kwiindawo ezinzulu ezihlukeneyo kwaye zikhuselekile ekubunjweni kwinkqubo eyaziwa ngokuba yi-Cementing. 'Isamente' apha ibhekisa kumxube wesamente kunye nezongezelelo ezithile ezimpontshelwa equleni kwaye zizalise ivacuum phakathi kwebhokisi kunye nokwakheka okujikelezileyo.

Emva kokuba umthombo wamanzi uvalwe ngokupheleleyo ekubunjweni okujikelezileyo, iqula kufuneka ligqojozwe ukuvuselela imveliso evela kumacandelo asebenzayo edama abizwa ngokuba 'yimimandla yokuhlawula'. Ukugqobhoza kwenziwa kusetyenziswa 'Imipu yokugqobhoza' ethi isuse uqhushumbo olulawulwayo oludubula imingxunya kumacandelo athile ebhobhothi (kunye nakwindawo yokugcina amanzi) ukwenzela ukuveliswa okulawulwayo kweehydrocarbons.

Ukuba unomdla kwi-packer ye-Vigor okanye ezinye izixhobo ze-oyile kunye ne-gas downholes, nceda unganqikazi ukudibanisa nathi.