Usetyenziso lwebhokisi yeoyile:

Okusetyenziselwa ukugrumba imithombo yeoyile kusetyenziswa kakhulu kwinkqubo yokugrumba nasemva kokugqitywa kwenkxaso yodonga lwemithombo, ukuqinisekisa inkqubo yokugrumba kunye nokusebenza okuqhelekileyo kwemithombo yonke emva kokugqitywa. Ngenxa yeemeko ezahlukeneyo zejoloji, imeko yoxinzelelo olungaphantsi komhlaba iyinkimbinkimbi, kwaye isenzo esibanzi soxinzelelo oluxineneyo, oluxinzelelweyo, olugobileyo kunye nolushukumayo emzimbeni wombhobho sinika iimfuno eziphezulu zomgangatho webhokisi ngokwayo. Nje ukuba ibhokisi ngokwayo yonakale ngenxa yesizathu esithile, inokukhokelela ekunciphiseni imveliso yequla lonke, okanye kwanakwizinto ezilahliweyo.

Iintlobo zebhokisi yeoyile:

Ngokutsho kwe-SY/T6194-96 “i-petroleum casing”, inokwahlulwa ibe ziintlobo ezimbini: i-short threaded casing kunye ne-collar yayo kunye ne-long threaded casing kunye ne-collar yayo.

Umgangatho we-oyile casing kunye nokupakishwa:

Ngokutsho kwe-SY/T6194-96, isingxobo sasekhaya kufuneka sibotshwe ngocingo lwentsimbi okanye ngebhanti yentsimbi. Inxalenye eveziweyo yesingxobo ngasinye kunye nomsonto wekhola kufuneka ikrufulwe ngeringi yokukhusela ukuze kukhuselwe umsonto.

Ibhokisi kufuneka inikwe umsonto kunye nekhola ngokwe-API SPEC 5CT1988 uhlelo lokuqala okanye nangayiphi na kwezi ndlela zilandelayo zokuphela kombhobho: isiphelo esithe tyaba, umsonto ongqukuva ongenakhola okanye ikhola, umsonto wetrapezoidal ongaphandle onekhola okanye ongenakho, umsonto othe tye, ukucutshungulwa kwesiphelo esikhethekileyo, ukwakhiwa kweringi yesitywina.

Uhlobo lwentsimbi yebhokisi yepetroleum:

Udidi lwentsimbi yesikhongozeli seoyile lunokwahlulwa lube ziindidi ezahlukeneyo zentsimbi ngokobukhulu bentsimbi ngokwayo, ezizezi: H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P-110, Q-125, njl.Iimeko zemithombo eyahlukeneyo, ubunzulu bemithombo, ukusetyenziswa komgangatho wentsimbi nako kwahlukile. Ibhokisi ngokwayo ikwafuneka ukuba imelane nokugqwala kwiindawo ezigqwalisayo. Kwiindawo ezineemeko zejoloji ezinzima, ibhokisi nayo ikwafuneka imelane nokutyumzwa.

Ifomula yokubala ubunzima bebhokisi yeoyile yile ilandelayo:

KG/ m = (ububanzi obungaphandle – ubukhulu bodonga) * ubukhulu bodonga *0.02466

Ubude bebhokisi yeoyile:

Kukho iintlobo ezintathu zobude ezichazwe yi-API: R-1 4.88 ukuya kwi-7.62m, R-2 7.62 ukuya kwi-10.36m, R-3 10.36m ukuya kubude obude.

Uhlobo lwebhakethi yebhokisi yepetroliyam:

I-API 5CTIintlobo zeebhakede zekhabhathi yepetroleum ziquka i-STC (ibhakede emfutshane ejikelezileyo), i-LTC (ibhakede ende ejikelezileyo), i-BTC (ibhakede yeladi engaphelelanga), i-VAM (ibhakede yokumkani) kunye nezinye iintlobo zeebhakede.

Ukuhlolwa kokusebenza kwebhokisi yepetroliyam:

(1) Ngokwe-SY/T6194-96. Ukwenza uvavanyo lokuthamba (GB246-97) kunye novavanyo lwe-hydrostatic.

(2) uvavanyo lwe-hydrostatic, uvavanyo lokuthamba, uvavanyo lokuqhekeka koxinzelelo lwe-sulfide corrosion, uvavanyo lobunzima (i-ASTME18 okanye i-E10 yamva nje), uvavanyo lokutsalwa, uvavanyo lwempembelelo enqamlezileyo (ASTMA370, ASTME23 kunye nohlobo lwamva nje lwemigangatho efanelekileyo) ngokwemigaqo ye-American Petroleum Institute APISPEC5CT1988 uhlelo lokuqala Ok), ukumisela ubungakanani bengqolowa (i-ASTME112 yamva nje okanye enye indlela)

Ukungenisa nokuthumela ngaphandle ioyile:

(1) Amazwe aphambili angenisa ioyile ngaphakathi kwezi: iJamani, iJapan, iRomania, iCzech Republic, iItali, iUnited Kingdom, iAustria, iSwitzerland, iUnited States, iArgentina, iSingapore nayo ingenisa ngaphakathi.Imigangatho yokungenisa impahla ibhekisa kwi-American Petroleum Institute standard API5A, 5AX, 5AC. Udidi lwentsimbi yi-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 ezichazwe yi-API: R-1 yi-4.88 ~ 7.62m, R-2 yi-7.62 ~ 10.36m, R-3 yi-10.36m ukuya phezulu.

(3) Inxalenye yeempahla ezingenisiweyo iphawulwe nge-LTC, oko kukuthi, isikhongozeli se-filament buckle.

(4) Ukongeza kwimigangatho ye-API, inani elincinci lee-bushing ezingeniswe eJapan lihambelana nemigangatho yabavelisi baseJapan (abafana neNippon Steel, iSumitomo, iKawasaki, njl.njl.), amanani entsimbi yi-NC-55E, i-NC-80E, i-NC-L80, i-NC-80HE, njl.njl.

(5) Kwiimeko zebango, bekukho iziphene ezibonakalayo ezifana nebhakethe emnyama, umonakalo wentambo, ukugoba komzimba wepayipi, umgama oqinileyo webhakethe kunye nomsonto ophukileyo ngaphandle kokunyamezelana, ukudibana kwexabiso lika-J ngaphandle kokunyamezelana, kunye neengxaki zomgangatho wangaphakathi ezifana nokuqhekeka okubuthathaka kunye namandla aphantsi okukhupha isingxobo.

Iimpawu zoomatshini zeklasi nganye yentsimbi yebhokisi yepetroleum: