Izimbangela kanye nezixazululo zokubhoboza ukunamathela

Ukunamathela, okubuye kwaziwe ngokuthi i-differial pressure sticking, kuyingozi yokunamathela ejwayeleke kakhulu enqubweni yokumba, ehlanganisa ukwehluleka kokunamathela okungaphezu kwamaphesenti angama-60.

Izizathu zokunamathela:

(1)Intambo yokumba inesikhathi eside esimile emthonjeni;

(2) Umehluko wengcindezi emthonjeni mkhulu;

(3) Ukungasebenzi kahle koketshezi lokumba kanye nezinga eliphansi lekhekhe lodaka kubangela i-coefficient enkulu yokungqubuzana;

(4) Ikhwalithi embi yemigodi.

Izici ze-Stick drill:

(1) Ukunamathela kusesimweni esimile sentambo yokubhoboza kungenzeka, njengoba isikhathi esimile sizokwenzeka sibhajwe, sihlobene eduze nesistimu yokugaya uketshezi, ukusebenza, isakhiwo sokumba, ikhwalithi yembobo, kodwa kufanele kube nenqubo emile.

(2)Ngemva kokunamathisela i-drill, indawo yephoyinti lokunamathela ngeke kube i-drill bit, kodwa ikhola yokubhoboza noma ipayipi lokubhoboza.

(3) Ngaphambi nangemva kokunamathela, ukujikeleza kwamanzi okumba kuvamile, ukugeleza kokungenisa nokuthumela ngaphandle kuyalinganisa, futhi ukucindezela kwepompo akushintshi.

(4)Ngemva kokunamathela kumshini wokubhoboza obambekile, uma umsebenzi ungafiki ngesikhathi, indawo ebambekile ingase ikhuphuke, noma iqonde eduze kwesicathulo se-casing.

Ukuvimbela ukunamathela:

Izidingo ezijwayelekile, isikhathi sokuma kwentambo yokumba akufanele sidlule imizuzu emi-3. Ibanga lokuprakthiza ngakunye alikho ngaphansi kuka-2m, futhi ukuzungezisa akuyona imijikelezo engaphansi kwe-10. Ngemuva komsebenzi kufanele kubuyiselwe isisindo sokuqala sokumiswa.

Uma i-drill bit ingaphansi kwembobo futhi ingakwazi ukuhamba futhi ijikeleze, kuyadingeka ukuthi ucindezele u-1/2-2/3 wesisindo esimisiwe sethuluzi lokubhoboza ku-drill bit ukuze ugobe intambo ephansi yokubhoboza, ukunciphisa indawo yokuxhumana phakathi kwentambo yokubhoboza kanye nekhekhe lodaka odongeni, futhi unciphise ukunamathela okuphelele.

Ngesikhathi sokumba okuvamile, njengokuhluleka kompompi noma ipayipi, ipayipi le-kelly akumele lihlaliswe phezulu ukuze lilungiswe. Uma ukubhola okunamathelayo kwenzeka, kuzolahlekelwa ithuba lokucindezela phansi nokuzungezisa intambo yokubhoboza.

Ukwelashwa kwe-stick drill:

(1) Umsebenzi oqinile

Ukunamathela kuba nzima nakakhulu ngokwandiswa kwesikhathi. Ngakho-ke, esigabeni sokuqala sokutholwa kwenduku, amandla amakhulu kufanele aqhutshwe ngaphakathi komthwalo ophephile wemishini (ikakhulukazi i-derrick kanye nesistimu yokumiswa) kanye nentambo yokubhoboza. Ayedluli umkhawulo womthwalo ophephile wesixhumanisi esibuthakathaka, futhi isisindo sayo yonke intambo yokubhoboza ingacindezelwa ekucindezelweni okuphansi, futhi ukujikeleza okufanele nakho kungenziwa, kodwa akukwazi ukudlula inani elilinganiselwe lokuphenduka kwe-torsion ipayipi lokubhoboza.

(2)Vula ikhadi

Uma intambo yokubhoboza inembiza ngenkathi ibhoboza, kufanele iqale ngokushesha isando esingaphezulu phezulu noma iqalise isando esiphansi phansi ukuze ixazulule ikhadi, eligxile kakhulu kunamandla alula akhuphukayo naphansi.

(3) Gcoba i-ejenti yokukhulula

I-ejenti yokukhulula ukucwiliswa iyindlela evame ukusetshenziswa futhi ebalulekile yokukhulula umshini wokubhola obambekile. Kunezinhlobo eziningi zama-ejenti akhipha ujamu, uma sikhuluma kabanzi, okuhlanganisa uwoyela ongahluziwe, uwoyela udizili, izinhlanganisela zikawoyela, i-hydrochloric acid, i-acid yenhlabathi, amanzi, amanzi anosawoti, amanzi ane-alkali, njll. Ngomqondo omncane, kubhekiselwa esixazululweni esikhethekile esakhiwe. wezinto ezikhethekile zokuphakamisa i-adhesion stuck drill, kukhona okusekelwe ku-oyela, kukhona okusekelwe emanzini, ukuminyana kwabo kungashintshwa njengoba kudingeka. Indlela yokukhetha i-ejenti yokukhululwa, kuye ngokuthi isimo esithile sesifunda ngasinye, ukucindezela okuphansi kahle kungakhethwa ngokuthanda, ukucindezela okuphezulu kahle kungakhetha kuphela i-ejenti yokukhululwa kwe-high-density.