Uhlobo oluhlukile lwamapayipi e-casing embonini kawoyela negesi

Embonini kawoyela negesi, izinhlobo ezine ze-casing zivame ukusetshenziswa:

1.I-Conduit: I-Conduit iwumzila wokuqala ofakwe ukusekela isisindo se-drilling rig futhi uvimbele i-borehole ukuthi ingawi ngesikhathi sokumba. I-Conductor Casing: Imvamisa, i-conductor casing iwubukhulu obukhulu be-diameter esetshenziswa emisebenzini yokumba. Ihluka ngosayizi ukusuka kumasentimitha angama-20 kuye kwangama-42 ububanzi. I-conductor casing ngokuvamile yenziwe nge-low-grade carbon steel, njenge-J55 noma i-N80, ukuze inikeze ukuzinza phakathi nesigaba sokuqala sokumba.

2. I-Surface casing: iyikesi yesibili efakwe ukuze inikeze ukuvikeleka kwezindawo ezinamanzi ahlanzekile futhi ivimbele ukungcoliswa. Ububanzi bayo ngokuvamile bukhulu kunaleyo yezindlu zomqhubi. I-Surface Casing: I-Surface Casing iyisikhwama sokuqala esisethwe emthonjeni ngemva kokubhoboza imbobo ye-conductor. Inikeza ukuvikeleka kwamanzi angaphansi komhlaba angashoni futhi ihlukanisa ukwakheka okuphezulu. Osayizi abavame ukusetshenziselwa ukufakwa kwe-surface casing bangama-intshi angu-13⅜ kuya ku-20 ububanzi. Amamaki e-Material casing angaphezulu angafaka amamaki ensimbi ye-carbon efana ne-J55, i-K55, i-N80, noma izinto eziqinile ezifana ne-L80 noma i-C95

3. Ikesi eliphakathi nendawo: Lesi sikhwama sifakwe ekujuleni okuhlukene kuye ngezimo zomthombo futhi sisetshenziselwa ukuvikela umthombo oketshezini olwakhayo kanye nezingcindezi. Inikeza ukwesekwa okwengeziwe kanye nokuhlukaniswa nomthombo. Ikesi eliphakathi nendawo: Ikesi eliphakathi nendawo libekwe ekujuleni okuphakathi futhi linikeza ukwesekwa okwengeziwe emgodini womthombo. Amasayizi we-Casing amaphakathi asuka ku-7 kuye ku-13⅜ amayintshi ububanzi, kuye ngomklamo womthombo. Amamaki ezinto ezibonakalayo ekheseji emaphakathi angafaka i-L80, i-C95, noma amamaki anamandla aphezulu njenge-T95 noma i-P110.

4. Ikesi Lokukhiqiza: Lena ikesi yokugcina efakwe emthonjeni ngemva kokuphothula ukumba. Ihlinzeka ngobuqotho besakhiwo emthonjeni futhi ihlukanise indawo yokukhiqiza kusukela ezakhiweni ezizungezile ukuvimbela ukuvuza nokugcina ukukhiqiza kahle. Lezi zinhlobo ezine ze-casing zivame ukusetshenziswa embonini kawoyela negesi, kodwa ukuhlukahluka kungase kube khona kuye ngezimo ezithile zemithombo kanye nezidingo zokulawula. Ikesi eliphakathi nendawo: Ikesi eliphakathi nendawo libekwe ekujuleni okuphakathi futhi linikeza ukwesekwa okwengeziwe emgodini womthombo. Amasayizi we-Casing amaphakathi asuka ku-7 kuye ku-13⅜ amayintshi ububanzi, kuye ngomklamo womthombo. Amamaki ezinto ezibonakalayo ekheseji emaphakathi angafaka i-L80, i-C95, noma amamaki anamandla aphezulu njenge-T95 noma i-P110.

Kubalulekile ukuqaphela ukuthi osayizi bezinhlamvu namabanga wezinto ezibonakalayo angahluka ngokuya ngezidingo ezithile zemithombo namazinga esifunda. Ama-alloys ahlukahlukene, izinto ezimelana nokugqwala, kanye nezinsiza nazo zingasetshenziswa ngokuya ngezimo zemithombo, njengendawo yegesi emuncu noma imithombo enomfutho ophezulu/izinga lokushisa eliphezulu.