1.Ulwakhiwo lwesikhokelo
Gwema ukuphambuka kwegophe kunye nokwakheka kwe "S" kwimilo ekhokelwayo.
Kwinkqubo yokwakha yeukugrumba kwicalangokusebenzisa, nokuba umngxuma isikhokelo agudileyo okanye hayi, nokuba iyahambelana igophe uyilo original, kwaye uphephe inkangeleko "S" imilo umngxuma isikhokelo imfuneko yokugqitywa ngempumelelo ulwakhiwo ukuwela.Ukunqanda ukubunjwa kwe-"S", amanyathelo alandelayo anokuthathwa:
(1) Kwinkqubo yokulinganisa kunye nokumisela, sebenzisa isikhululo esipheleleyo ukuvavanya kwakhona kwaye uqinisekise iindawo zokuphuma kunye nokungena ngaphezu kwamaxesha amathathu ukuqinisekisa ukuba umbhobho wokuwela uhambelana noyilo.
(2) Ngaphambi kokugaya, isixhobo sokugaya silinganiswe, kunye namanqaku amaninzi okulinganisa ngokuphindaphindiweyo ukuqinisekisa ukuchaneka kwayo.
(3) Hlalutya iimeko zejoloji phambi kokuba uqalise umsebenzi, zoba igophe elinqumlayo kwindlela yokudibanisa umbhobho ngamnye wokubhola kwiphepha elilungelelanisiweyo ngokwegophe loyilo, ileyibhelishe umbhobho ngamnye wokubhola, kwaye ubonise iimeko zejoloji ezihambelanayo kubunzulu obahlukeneyo;Kwinkqubo yokugaya, ngokwendawo yokubhoboza iimeko zokubunjwa ukulawula ukusebenza kwe-viscosity yodaka, nangaliphi na ixesha ngokweemeko zejoloji ukulungelelanisa uxinzelelo lodaka, umlinganiselo wodaka kunye nezinye iiparitha.
(4) Emva kokuba i-drilling rig isendaweni, ukulinganisa ngokuchanekileyo ubungakanani be-angle ebandakanyiweyo, bala i-drift ethe tye kwaye uyirekhode, kwaye ngokuthe ngcembe uyilungise ngokwexabiso elivumelekileyo le-curvature yokuwela ngexesha lokugaya, ukwenzela ukuba ugweme. i-"S" imilo yombhobho wokubhobhoza kuhlobo lokubunjwa ukuze kuqinisekiswe ukugudiswa kwegophe lokugaya kunye nokuphucula umgangatho wokugaya umngxuma wokulingwa.
(5) Qonda umgangatho, iimeko ze-geological kunye ne-hydrological, kwaye ulinganise i-azimuth kumgca weziko lokuwela ngaphandle kokuphazamiseka kwamagnetic.Umlinganiselo we-azimuth Angle uqhutyelwa kumacala omabini kwindawo yokungcwaba kunye nendawo yokumba.
(6) Ikhoyili kufuneka ibethelwe ngentla kwe-axis yokuwela, kwaye ukutenxa kufuneka kulinganiswe rhoqo ukuze kuqinisekiswe ukuba i-axis yokuwela ihambelana ne-axis yoyilo kunye nokuchaneka kokumba kwemfumba ephezulu kwindawo evunjululweyo.
(7) Iirekhodi zolawulo kufuneka zigqibelele, zichaneke kwaye zisebenze.Kwinkqubo yokulinga ukugrumba, nakuphi na okungaqhelekanga kunye nokumiswa kokomba kuya kubhalwa phantsi.
(8) Jonga umahluko woxinzelelo lodaka kunye notshintsho lodaka ngamaxesha onke ukubonelela ngesiseko sokugweba imeko yokusebenza yempompo yodaka;jonga utshintsho loxinzelelo lwepropulsion ukubonelela ngesiseko sokusebenza kwesixhobo sokomba.
(9) Ukuze kuqinisekiswe ukuba i-curve drilling ihambelana ne-design crossing curve, inkqubo yokulawula iya kuvavanywa xa i-pilot hole iqhutywe, ngokukodwa kubandakanywa: ukuvavanya i-console ye-driller's, ukuvavanya i-device interface yedatha, ukuxilongwa kwe-probe (kubandakanywa probe uqwalaselo uqwalaselo, idatha, njalo njalo) ubhaqo oluqhubekayo.Emva kokuba zonke iimvavanyo kunye nohlengahlengiso lugqityiwe, qhubela phambili kwi-drilling eqhelekileyo.
2.Ndiphathent imilinganiselo xa i-drill bit ixingile
(1) Ngexesha lokugaya umngxuma wokulingwa, i-drill bit inokuthi ibambeke, ebonakaliswa ngokunyuka okubukhali koxinzelelo lodaka, okanye ukunyuka ngokukhawuleza kwi-torque ye-drilling rig (ngexesha lokugaya i-rotary).Ngeli xesha, i-torque eyenziwe yi-motor yodaka ayinakoyisa isenzo se-rock torque kwi-drill bit, i-drill bit iyayeka ukujikeleza.
Kukho iinketho ezimbini:
● Xa ukuthotywa koxinzelelo lodaka kunokugcinwa ngaphakathi koluhlu lwe-500psi, kuyenzeka ukuba kumiswe ngokukhawuleza ukuqhubela phambili kombhobho wokomba, kwaye endaweni yoko utsale umbhobho wokubhoboza kwicala lesixhobo sokomba ukwenza isuntswana lokubhola lishiye indawo yokusebenzela. tye ngokukhawuleza, unciphise umahluko woxinzelelo lodaka, kwaye emva koko usebenzise i-Thrust ecothayo kunye nesantya sokutyhala sokomba;
●Xa ukuhla koxinzelelo lodaka kudlula i-500psi, impompo yodaka kufuneka icinywe ngoko nangoko, ukumpompa udaka kufuneka kumiswe, kwaye umbhobho wokubhobhoza kufuneka uhlehliswe ukuya kwindawo yokomba ukukhusela injini yodaka ukuba yonakaliswe ngenxa yoxinzelelo olugqithisileyo. etywinweni.
(2) Ngethuba lokwakhiwa komngxuma wesikhokelo, i-drill ibambekile xa ithatha indawo yesixhobo sokugaya okanye ukupompa umbhobho we-drill phantsi kwezinye iimeko ezikhethekileyo.Isizathu esona sizathu kukuba ukuphambuka kwamacandelo ngamnye kukhulu kakhulu, ukucocwa komngxuma akukona ngokucokisekileyo, ukuqokelela ngokugqithiseleyo i-drilling cuttings ebangelwa "i-shrinkage hole", okubangelwa ukuxilwa kwe-drilling.
Unyango: Okokuqala, udaka kufuneka lugcinwe lusebenza ngokuqhelekileyo, kwaye kukho udaka olwaneleyo lokumpompa emngxunyeni.Ngeli xesha, umbhobho wokubhobhoza akufuneki uqhubeke nokutsala umva, kungenjalo uya kuxinga ngokulula.Umbhobho wokubhobhoza kufuneka uqhubeke uqhubela phambili ngokumpompa udaka, ucoce ngomonde umngxuma, uhlengahlengise umda ophezulu wesuntswana ngokwerekhodi yokuqala yokomba, uyeke ukujikeleza kombhobho wokubhoboza ukupompa ngasemva, nikela ingqalelo ukulawula ukunyanzeliswa kombhobho. , uze ujikeleze umbhobho we-drill phambili, uhlambulule umngxuma, amaxesha amaninzi, de kube lula ngokusebenzisa icandelo "lomngxuma we-shrinkage".
3.Ulwakhiwo lweReaming
(1) Amanyathelo okuthintela ukuwa kwekhowuni emngxunyeni ngexesha lokubuyisela kwakhona
Ngexesha lokwakhiwa ngokutsha, ngenxa yokuqina okugqithisileyo kwamatye okanye ulwakhiwo oluguquguqukayo lomaleko wamatye, ikhowuni ye-cone reamer inokuwela emngxunyeni, ichaphazele ulwakhiwo oluphinda luphinde lwenziwe.
Indlela yonyango: Ngokwedatha yerekhodi yesikhokelo, utshintsho loxinzelelo kwindawo nganye yomgangatho wamatye lunokumiselwa.Emva kokuba isixhobo sokuvuselela amatye sisetyenziselwe iiyure ezingama-80, sibuyisele esitsha sokuphinda sixubushe;Phambi kokuba i-reamer ingene kwindawo apho uxinezeleko lwamatye luyanda, ukuba isixhobo sokuvuselela amatye sisetyenziswe ngaphezulu kweyure ezingama-60, buyisela esinye endaweni yaso.
(2) Amanyathelo okuthintela umbhobho wokomba owaphukileyo
Ijoloji enqamlezayo yeprojekthi ayilingani ngobulukhuni kunye nokuqina, kwaye iimfuno zomgangatho wokwenza ngokutsha ziphezulu kakhulu.Xa udibana neendawo ezinotshintsho olukhulu kuxinzelelo lwamatye ngexesha lokuvuselela, kulula ukubangela ukuqhekeka kombhobho we-drill, obonakaliswa ngokuncipha kwangoko kwe-torque ye-drill kunye noxinzelelo.
Indlela yonyango: ngexeshaukugrumba kwicalaukwakhiwa, inkqubo yokwakha yokudibanisa umbhobho we-drill kwindawo yokumba iya kwamkelwa.Emva kokuphuka kombhobho wokubhobhoza, lungisa ngexesha elifanelekileyo izixhobo kwindawo yokumba kwaye ubuyisele umva umbhobho wokubhobhoza.Emva kokuba zonke iireamers zemibhobho yokomba zibanjiwe, inkqubo yesikhokelo iya kufakwa ecaleni emhlabeni ukuze ikhokele kwakhona ecaleni komngxuma wokuqala wesikhokelo.
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Ixesha lokuposa: Feb-07-2023