Iindidi ezahlukeneyo zeepayipi zokufaka iibhokisi kwishishini leoyile negesi

Kwishishini leoyile negesi, iintlobo ezine ze-casing zisetyenziswa rhoqo:

1. Umjelo: Umjelo ngumjelo wokuqala ofakelweyo ukuxhasa ubunzima besixhobo sokugrumba nokuthintela ukuba umngxuma ungawi ngexesha lokugrumba. I-Conductor Casing: Ngokwesiqhelo, i-conductor casing yeyona bhokisi inkulu yobubanzi esetyenziswa kwimisebenzi yokugrumba. Ubukhulu bayo buqala kwii-intshi ezingama-20 ukuya kwezingama-42 ububanzi. I-conductor casing idla ngokwenziwa ngentsimbi yekhabhoni ephantsi, efana ne-J55 okanye i-N80, ukubonelela ngozinzo ngexesha lesigaba sokuqala sokugrumba.

2. Ibhokisi yomphezulu: yibhokisi yesibini efakelweyo ukubonelela ngokhuseleko kwiindawo zamanzi acocekileyo nokuthintela ungcoliseko. Ububanzi bayo buhlala bukhulu kunobo bebhokisi yomphezulu. Ibhokisi yomphezulu: Ibhokisi yomphezulu yibhokisi yokuqala ebekwe equleni emva kokugrumba umngxuma womphezulu. Ikhusela amanzi angaphantsi komhlaba anganzulu kwaye ihlukanise ulwakhiwo oluphezulu. Ubungakanani obusetyenziswa rhoqo kwibhokisi yomphezulu buyi-13⅜ ukuya kwi-20 intshi ububanzi. Amanqanaba ezinto zebhokisi yomphezulu anokubandakanya amanqanaba entsimbi yekhabhoni afana ne-J55, K55, N80, okanye izinto ezinamandla aphezulu ezifana ne-L80 okanye i-C95

3. I-Intermediate Casing: Le casing ifakwe kubunzulu obahlukeneyo ngokuxhomekeke kwiimeko zomthombo kwaye isetyenziselwa ukukhusela i-wellbor kulwelo kunye noxinzelelo. Inika inkxaso eyongezelelweyo kunye nokwahlulwa komthombo. I-Intermediate Casing: I-Intermediate casing ibekwe kubunzulu obuphakathi kwaye inika inkxaso eyongezelelweyo kwi-wellbor. Ubungakanani be-intermediate casing buqala kwi-intshi ezi-7 ukuya kwezi-13 ububanzi, kuxhomekeke kuyilo lomthombo. Amanqanaba ezinto ze-intermediate casing angabandakanya i-L80, i-C95, okanye amanqanaba aphezulu anjenge-T95 okanye i-P110.

4. Ibhokisi Yemveliso: Le yibhokisi yokugqibela efakwe equleni emva kokuba ukugrumba kugqityiwe. Ibonelela ngokuqina kwesakhiwo sequla kwaye yahlula indawo yemveliso kwiindawo ezijikelezileyo ukuthintela ukuvuza nokugcina imveliso yequla. Ezi ntlobo zine zebhokisi zisetyenziswa rhoqo kwishishini leoyile negesi, kodwa umahluko unokubakho ngokuxhomekeke kwiimeko ezithile zequla kunye neemfuno zomthetho. Ibhokisi Ephakathi: Ibhokisi Ephakathi ibekwe kubunzulu obuphakathi kwaye inika inkxaso eyongezelelweyo kwi-wellbore. Ubungakanani bebhokisi ephakathi buqala kwi-intshi ezi-7 ukuya kwezi-13 ububanzi, kuxhomekeke kuyilo lwequla. Amanqanaba ezinto zebhokisi ephakathi anokubandakanya i-L80, i-C95, okanye amanqanaba aphezulu anjengo-T95 okanye i-P110.

Kubalulekile ukuqaphela ukuba ubungakanani bekheyiji kunye nomgangatho wezinto ezisetyenzisiweyo zinokwahluka ngokusekwe kwiimfuno ezithile zemithombo kunye nemigangatho yengingqi. Iingxube ezahlukeneyo, izinto ezimelana nokugqwala, kunye nezixhobo nazo zingasetyenziswa ngokuxhomekeke kwiimeko zemithombo, njengeendawo ezinegesi emuncu okanye imithombo enoxinzelelo oluphezulu/yobushushu obuphezulu.