Izizathu kunye nemilinganiselo yokuthintela yokubangela ukuba ikheji yentsimbi indada phezulu

Izizathu zokubangela ukuba ikheyiji yentsimbi indada ibe ngokuqhelekileyo:

(1) Amaxesha okuqala nawokugqibela okumisela ikhonkrithi mafutshane kakhulu, kwaye iindawo zekhonkrithi emingxunyeni zisengaphambili kakhulu. Xa i-concrete egalelwe kwi-conduit iphakama ukuya ezantsi kwi-cage yensimbi, ukuthululwa okuqhubekayo kwee-concrete clumps kuphakamisa i-cage yensimbi.

(2) Xa ucoca umngxuma, maninzi kakhulu amasuntswana esanti amisiweyo eludakeni ngaphakathi komngxuma. Ngethuba lenkqubo yokugalela ikhonkrithi, la masuntswana esanti ahlala emva kobuso bekhonkrithi, enze umaleko wesanti oxineneyo, othi ngokuthe ngcembe unyuke ngobume bekhonkrithi ngaphakathi komngxuma. Xa umaleko wesanti uqhubeka nokunyuka kunye nomzantsi wekheji yentsimbi, uxhasa ikheji yentsimbi.

3

(4) Ukuvulwa komngxuma we-cage yensimbi akuqiniswanga ngokukhuselekileyo.Amanyathelo obugcisa aphambili okuthintela nokuphatha ukudada kweekheji zetsimbi zibandakanya.

Amanyathelo obugcisa aphambili okuthintela kunye nokuphatha ukudada kweekheji zentsimbi ziquka:

(1) Ngaphambi kokugaya, kuyimfuneko ukuhlola kuqala udonga lwangaphakathi lomkhono we-casing ephantsi. Ukuba ubuninzi bezinto zokubambelela ziqokelela, kufuneka zicocwe ngokukhawuleza. Ukuba kuqinisekiswa ukuba kukho ukuguqulwa, ukulungiswa kufuneka kuqhutywe ngokukhawuleza. Xa umngxuma ugqityiwe, sebenzisa ibhakethi enkulu yokubamba uhlobo lwehamile ukuyiphakamisa ngokuphindaphindiweyo kwaye uyihlise kaninzi ukuze ususe isanti eshiyekileyo kunye nomhlaba kudonga lwangaphakathi lombhobho kwaye uqinisekise ukuba umzantsi womngxuma usezingeni.

(2) Umgama phakathi kwe-hupula yokuqinisa kunye nodonga lwangaphakathi lwe-casing kufuneka ubuncinane buphindwe kabini ubukhulu be-aggregate erhabaxa.

(3) Ingqalelo kufuneka ihlawulwe kumgangatho wokulungiswa kunye nokudityaniswa kwe-cage yensimbi ukukhusela ukuguqulwa okubangelwa ukungqubana ngexesha lokuthutha. Xa unciphisa i-cage, ukuchaneka kwe-axial ye-cage yensimbi kufuneka kuqinisekiswe, kwaye i-cage yensimbi akufanele ivunyelwe ukuba iwele ngokukhululekile kwi-wellbore. Umphezulu wentsimbi yensimbi akufanele ubethelwe, kwaye kufuneka kuthathelwe ingqalelo ukuba ungangqubani nentsimbi yensimbi xa ufaka i-casing.

(4) Emva kokuba ikhonkrithi ethululwayo iphuma kwi-conduit ngesantya esiphezulu, iya kunyuka phezulu ngesantya esithile. Xa ide iqhube ikheji yentsimbi ukuba iphakame, ukugalelwa kwekhonkrithi kufuneka kunqunyanyiswe ngoko nangoko, kwaye ubunzulu be-conduit kunye nokuphakama kwendawo esele igalelwe kufuneka ibalwe ngokuchanekileyo kusetyenziswa izixhobo zokulinganisa. Emva kokuphakamisa umbhobho kumphakamo othile, ukugalela kunokuphinda kuqhutywe kwakhona, kwaye into ejikelezayo ephezulu iya kunyamalala.