I-Casing yipayipi yensimbi exhasa iindonga zeoli kunye negesi yegesi. Iqula ngalinye lisebenzisa iileya ezininzi ze-casing ngokuxhomekeke kubunzulu bokomba kunye ne-geology. I-Casing emva komthombo wokusebenzisa i-samente kwi-samente, i-casing kunye ne-tubing, i-drill pipe iyahluka, ayinakuphinda isetyenziswe, yinto yokusetyenziswa kwexesha elilodwa lezinto. Ngoko ke, ukusetyenziswa kwe-casing akhawunti ngaphezu kwe-70% yayo yonke imibhobho ye-oyile. I-Casing inokwahlulwa ibe ngumbhobho, i-surface casing, i-technical casing kunye ne-oyile layer casing ngokwendlela yokusetyenziswa, kunye nesakhiwo sazo kwiqula leoli liboniswa kumzobo.
Umbhobho: usetyenziswa ikakhulu elwandle nasentlango kusombiwa, ukwahlula amanzi olwandle nesanti, ukuqinisekisa ukugrumba okugudileyo, iinkcukacha eziphambili zolu maleko lwecasing zezi: ∮762mm(30in) ×25.4mm, ∮762mm(30in) ×19.06mm.
Isingxobo somphezulu: isetyenziswa ikakhulu kukomba wokuqala, ukugrumba umhlaba othambileyo kwilitye, ukuze utywine le ndawo yomhlaba ngaphandle kokuwohloka, kufuneka kusetyenziswe isingxobo somphezulu ukutywinwa. Iimpawu eziphambili zokwakheka komphezulu: 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 80 ~ 1500m. Uxinzelelo lwangaphandle kunye noxinzelelo lwangaphakathi alukho lukhulu, ngokuqhelekileyo lusebenzisa i-K55 ibakala lensimbi okanye i-N80 yensimbi.
I-casing yobuchwephesha: isetyenziselwa inkqubo yokugaya i-complex form, xa idibana nomgangatho wokuwa, i-oil layer, i-gas layer, i-water layer, i-layer elahlekileyo, i-salt paste layer kunye nezinye iindawo ezinzima, kufuneka zitywinwe, ngaphandle koko ukubhobhoza kunokungena. ayinakwenziwa. Amanye amaqula anzulu kwaye antsonkothile, kwaye ubunzulu bequla bungamawaka eemitha, eli qula linzulu lifuna iileya ezininzi zecasing yobugcisa, iipropati zayo zomatshini kunye neemfuno zokutywinwa zokusebenza ziphezulu, ukusetyenziswa komgangatho wentsimbi nako kuphezulu, ukongeza I-K55, ngaphezulu kwe-N80 kunye ne-P110 ibakala lensimbi, ezinye iiWell ezinzulu zisebenzisa i-Q125 okanye ibakala eliphezulu le-non-API yentsimbi efana ne-V150. Iimpawu eziphambili ze-technology casing zezi: 339.73mm (13-3/8in), 273.05mm (10-3/4in), 244.48mm (9-5/8in), 219.08mm (8-5/8in), 193.68 mm(7-5/8in), 177.8mm(7in), njl.
I-oil layer casing: Xa ubhobhoza kwi-target layer (i-oyile kunye ne-gas bearing layer), kuyimfuneko ukutywina i-oyile kunye ne-gas layer kunye nokwakheka okuphezulu okuvezwayo kunye ne-oil casing, kwaye umbhobho weoli ungaphakathi kwi-oyile ye-oyile. Kuzo zonke iintlobo ze-casing casing, ubunzulu bokomba bobona bunzulu, kwaye iimpawu zabo zomatshini kunye neemfuno zokutywinwa kokusebenza nazo zezona ziphezulu. Amabakala ensimbi yi-K55, N80, P110, Q125, V150 njalo njalo. Ezona nkcukacha zingundoqo ze-reservoir casing zezi: 177.8mm(7in),168.28mm(6-5/8in),139.7mm(5-1/2in),127mm(5in),114.3mm(4-1/2in), njl. .
Ixesha lokuposa: Oct-13-2023
Igumbi 703 Isakhiwo B, iziko Greenland, Hi-tech uphuhliso zone Xi'an, China
86-13609153141
