1. Iimpawu kunye nemingcipheko yesanti kunye nentlenga yentlenga
Xa kusetyenzwa imingxuma kwisanti ecolekileyo okanye kumhlaba oyintlenga, ukuba umgangatho wamanzi aphantsi komhlaba uphezulu, kufuneka kusetyenziswe udaka ukwenza imingxuma yokukhusela iindonga. Olu hlobo lwe-stratum lulula ukuhlanjwa phantsi kwesenzo sokuhamba kwamanzi ngenxa yokuba akukho ukunamathela phakathi kwamaqhekeza. Ngenxa yokuba i-rotary drilling rig ithatha ngokuthe ngqo umhlaba iwuse emngxunyeni, umhlaba owombiweyo uphinda usetyenziswe nge-emele yokugrumba emhlabeni. Ibhakethi yokugaya ihamba eludakeni, kwaye isantya sokuhamba kwamanzi ngaphandle kwebhakethi yokubhoboza inkulu, ekulula ukubangela ukukhukuliseka kodonga lomngxuma. Isanti ehlanjwe eludongeni lomngxuma iyancipha ngakumbi umphumo wokukhusela eludongeni lodaka lokukhusela. Kunokwenzeka ukuba kubangele iingxaki ezifana nokukhuselwa kwentamo kunye nokuwa komngxuma.
2. Xa indlela yokwakha i-rotary drilling ithatha ukhuseleko lodaka kwisanti yokuqala elungileyo okanye umaleko womhlaba wentlenga, kufuneka kuqwalaselwe le milinganiselo ilandelayo:
(1) Nciphisa ngokufanelekileyo ukuthoba kunye nokutsalwa kwesantya se-drill bit, ukunciphisa isantya sokuhamba kodaka phakathi kwe-emele yokugaya kunye nodonga lomngxuma, kunye nokunciphisa ukhukuliseko.
(2) Yandisa ngokufanelekileyo i-Angle yamazinyo okugaya. Yandisa isithuba phakathi kodonga lomngxuma kunye nodonga olusecaleni lwebhakethi yokomba.
(3) Ukwandisa ngokufanelekileyo indawo yomgodi wamanzi kwibhakethi yokugaya, ukunciphisa uxinzelelo olubi phezulu kunye nezantsi kwibhakethi yokugaya ngexesha lokukhutshwa, kwaye emva koko unciphise izinga lokuhamba kodaka kumngxuma omncinci.
(4) Qwalasela umgangatho ophezulu wokukhusela udonga lodaka, ukulinganisa kwangexesha isiqulatho sesanti sodaka emngxunyeni. Thatha amanyathelo asebenzayo ngexesha xa ugqithise umgangatho.
5 Ukuba kufunyaniswe ukuba i-gap ebangelwa ukugqwesa inkulu, kufuneka ilungiswe kwangethuba ukuphepha ukuvuza kwesanti.
Ixesha lokuposa: Feb-23-2024