Ukusetyenziswa kwe-oyile ye-oyile:

Isetyenziselwa ukugaya ioli ye-oyile isetyenziswa kakhulu kwinkqubo yokugaya kwaye emva kokugqitywa kwenkxaso yodonga lwamaqula, ukwenzela ukuba kuqinisekiswe inkqubo yokugaya kunye nokusebenza okuqhelekileyo kwequla lonke emva kokugqitywa.Ngenxa yeemeko ezahlukeneyo ze-geological, phantsi komhlaba. Isimo soxinzelelo sinzima, kwaye isenzo esibanzi soxinzelelo, ukunyanzeliswa, ukugoba kunye noxinzelelo lwe-torsional kumzimba wombhobho ubeka phambili iimfuno eziphezulu kumgangatho wecala ngokwalo.Xa i-casing ngokwayo yonakele ngenxa yesizathu esithile, kunokukhokelela ekucuthweni kwemveliso yequla lonke, okanye nenkunkuma.

Iintlobo zengxowa yeoli:

Ngokutsho kwe-SY/T6194-96 “i-petroleum casing”, inokwahlulwa ibe ziindidi ezimbini: i-casing emfutshane enemisonto kunye nekhola yayo kunye necasing ende enemisonto kunye nekhola yayo.

Umgangatho we-oyile ye-oyile kunye nokupakishwa:

Ngokutsho kwe-SY / T6194-96, i-casing yasekhaya kufuneka iboshwe ngocingo lwensimbi okanye ibhande lensimbi.

I-casing iya kubonelelwa ngentambo kunye nekhola ngokwe-API SPEC 5CT1988 yokuqala okanye kuyo nayiphi na ifom yokuphela kombhobho ilandelayo: isiphelo esicaba, intambo ejikelezayo ngaphandle kwekhola okanye ikhola, i-offset trapezoidal thread kunye okanye ngaphandle kwekhola, intambo echanekileyo, isiphelo esikhethekileyo sokugqiba. , ukwakhiwa komsesane wokutywina.

Ibakala lentsimbi kwingxowa yepetroleum:

I-oil casing steel grade inokwahlulwa ibe ngamanqanaba ahlukeneyo entsimbi ngokokuqina kwentsimbi ngokwayo, oko kukuthi, H-40, J-55, K-55, N-80, C-75, L-80, C-90, C. -95, P-110, Q-125, njl.Iimeko ezahlukeneyo kakuhle, ubunzulu kakuhle, ukusetyenziswa ibakala intsimbi kwakhona eyahlukileyo.I-casing ngokwayo kwakhona kufuneka ukuba i-corrosion-resistant kwi-corrosion environments.Iindawo ezineemeko ze-geological eziyinkimbinkimbi, i-casing nayo iyafuneka ukuba ixhathise ukutyumza.

Ifomula yokubala ubunzima be-oyile ye-oyile ilandelayo:

KG/ m = (i-diameter yangaphandle - ubukhulu bodonga) * ubukhulu bodonga * 0.02466

Ubude bengxowa ye-oyile:

Kukho iintlobo ezintathu zobude obuchazwe yi-API: R-1 4.88 ukuya ku-7.62m, R-2 7.62 ukuya ku-10.36m, R-3 10.36m ubude.

Uhlobo lwebhanti yepetroleum:

I-API 5CTIindidi ze-petroleum casing buckle ziquka i-STC (i-short round buckle), i-LTC (i-buckle ejikelezayo ende), i-BTC (i-ladder buckle inxalenye), i-VAM (i-king buckle) kunye nezinye iindidi ze-buckle.

Ukuhlolwa kokusebenza ngokomzimba kwengxowa yepetroleum:

(1) Ngokutsho kwe-SY / T6194-96.Ukwenza uvavanyo lwe-flattening (GB246-97) uvavanyo lwe-tensile (GB228-87) kunye novavanyo lwe-hydrostatic.

(2) uvavanyo lwe-hydrostatic, uvavanyo lwe-flattening, uvavanyo lokuqhekeka kwe-sulfide yoxinzelelo lwe-corrosion, uvavanyo lobunzima (i-ASTME18 okanye i-E10 inguqulelo yamva nje), uvavanyo lwe-tensile, uvavanyo lwempembelelo enqamlezayo (ASTMA370, ASTME23 kunye noguqulelo lwamva nje lwemigangatho efanelekileyo) ngokuhambelana namalungiselelo I-American Petroleum Institute APISPEC5CT1988 uhlelo lokuqala Ok), ukumiselwa kobungakanani bengqolowa (ASTME112 inguqulelo yamva nje okanye enye indlela)

Ukungeniswa kunye nokuthumela ngaphandle kwengxowa yeoyile:

(1) Amazwe aphambili okungenisa ioli ye-oyile ngala: iJamani, iJapan, iRomania, iCzech Republic, i-Itali, i-United Kingdom, i-Austria, iSwitzerland, i-United States, i-Argentina, iSingapore nayo ingenisa.Imigangatho yokungenisa elizweni ibhekisa kwi-American Petroleum Institute standard API5A, 5AX, 5AC.Steel grade H-40, J-55, N-80, P-110, C-75, C-95 njalo njalo.Iinkcukacha eziphambili ziyi-139.77. 72R-2, 177.89.19R-2, 244.58.94R-2, 244.510.03R-2, 244.511.05r-2, njl.

(2) Kukho iintlobo ezintathu zobude obuchazwe yi-API: i-R-1 yi-4.88 ~ 7.62m, i-R-2 yi-7.62 ~ 10.36m, i-R-3 yi-10.36m ubude.

(3) Inxalenye yempahla engenisiweyo iphawulwe nge-LTC, okt, umkhono webhanti wefilament.

(4) Ukongeza kwimigangatho ye-API, inani elincinci le-bushing elisuka eJapan lithobela imigangatho yabavelisi baseJapan (njengeNippon Steel, iSumitomo, iKawasaki, njl.), iinombolo zetsimbi ziyi-NC-55E, NC-80E, NC. -L80, NC-80HE, njl.

5 kunye namandla emveliso ephantsi ye-casing.

Iipropati zoomatshini zodidi ngalunye lwentsimbi ye-petroleum casing: