I-casing yipayipi yentsimbi exhasa iindonga zemithombo yeoyile negesi. Iqula ngalinye lisebenzisa iileya ezininzi ze-casing kuxhomekeke kubunzulu bokugrumba kunye ne-geology. I-casing emva kwequla ukusebenzisa isamente kwisamente, i-casing kunye ne-tubing, ipayipi yokugrumba yahlukile, ayinakusetyenziswa kwakhona, yeyezinto ezisetyenziswa kube kanye. Ke ngoko, ukusetyenziswa kwe-casing kubalelwa ngaphezulu kwe-70% yazo zonke iipayipi zemithombo yeoyile. I-casing inokwahlulwa ibe yipayipi, i-casing yomphezulu, i-casing yobugcisa kunye ne-casing ye-oyile ngokwendlela esetyenziswa ngayo, kwaye ulwakhiwo lwazo kwiqula leoyile luboniswe kumfanekiso.
Umbhobho: osetyenziswa kakhulu ekubholeni ulwandle nolwandle, ukwahlula amanzi olwandle nesanti, ukuqinisekisa ukubhoboza okugudileyo, iinkcukacha eziphambili zalo maleko we-casing zezi: ∮762mm(30in) ×25.4mm, ∮762mm(30in) ×19.06mm.
Ibhokisi yomphezulu: isetyenziswa kakhulu ekubholeni kokuqala, ukubhoboza umhlaba othambileyo ukuya kwilitye elingaphantsi komhlaba, ukuze kutywinwe eli candelo lomhlaba ngaphandle kokudilika, kufuneka kusetyenziswe ibhodi yomphezulu ukuvala. Iinkcukacha eziphambili zebhokisi yomphezulu: 508mm(20in), 406.4mm(16in), 339.73mm(13-3/8in), 273.05mm(10-3/4in), 244.48mm(9-5/8in), njl. Ubunzulu bombhobho buxhomekeke kubunzulu bokwakheka okuthambileyo, okuqhelekileyo yi-80~1500m. Uxinzelelo lwayo lwangaphandle kunye noxinzelelo lwangaphakathi azinkulu, ngokubanzi kusetyenziswa ibhodi yentsimbi ye-K55 okanye ibhodi yentsimbi ye-N80.
I-casing yobuchwephesha: isetyenziswa kwinkqubo yokugrumba yokwakheka okuntsonkothileyo, xa idibana ne-collapse leaf, i-oil leaf, i-gas leaf, i-water leaf, i-salted leaf, i-salt paste layer kunye nezinye iindawo ezintsonkothileyo, kufuneka ivalwe, kungenjalo ukugrumba akunakwenziwa. Eminye i-Wells inzulu kwaye intsonkothile, kwaye ubunzulu be-wells buziimitha ezingamawaka, le well inzulu ifuna iileya ezininzi ze-technical casing, iipropati zayo zoomatshini kunye neemfuno zokusebenza kokugrumba ziphezulu, ukusetyenziswa kwe-steel grade nako kuphezulu, ukongeza kwi-K55, i-N80 engaphezulu kunye ne-P110 steel grade, eminye i-deep Wells ikwasebenzisa i-Q125 okanye i-higher non-API steel grade efana ne-V150. Iinkcukacha eziphambili zebhokisi yobugcisa zezi: 339.73mm(13-3/8in), 273.05mm(10-3/4in),244.48mm(9-5/8in),219.08mm(8-5/8in),193.68mm(7-5/8in),177.8mm(7in), njl.
Ibhokisi yeleya yeoyile: Xa kugqojozwa kwileya ekujoliswe kuyo (ileya ethwala ioyile negesi), kuyimfuneko ukuvala ibhodi yeoyile negesi kunye nokwakheka okuphezulu okubonakalayo ngebhokisi yeoyile, kwaye umbhobho weoyile ungaphakathi kwibhokisi yeoyile. Kuzo zonke iintlobo zebhokisi yeleya, ubunzulu bokugqobhoza bubunzulu kakhulu, kwaye iimpawu zayo zoomatshini kunye neemfuno zokusebenza kokutywina nazo ziphezulu kakhulu. Amanqanaba entsimbi yi-K55, N80, P110, Q125, V150 njalo njalo. Iinkcukacha eziphambili zebhokisi yereservoir zezi: 177.8mm(7in),168.28mm(6-5/8in),139.7mm(5-1/2in),127mm(5in),114.3mm(4-1/2in), njl.
Ixesha lokuthumela: Oktobha-13-2023
5-1203, iDahua Industrial Zone, No.2 Yunshui Road, iHi-tech development zone, eXi'an, 710065, eTshayina
86-13609153141
