Geological yeeb nkab yog cov yeeb nkab steel drilled los ntawm cov tub ntxhais hauv chav haujlwm geological.Nws hla ntu yog hollow, thiab muaj qhov ntev geological laum khoom txuas nrog cov yeeb nkab steel.

Geological kav nrog hollow cross-section, ntau cov kav dej, siv los thauj cov kua dej, xws li roj, nkev, nkev, roj, dej thiab qee yam khoom siv thauj mus los, cov kav dej, thiab lwm yam. Raws li kev siv, nws tuaj yeem muab faib ua laum. yeeb nkab, laum dab tshos, core yeeb nkab, casing yeeb nkab thiab sedimentation yeeb nkab.

Drill pas nrig nrog vuam cuab yeej sib koom

Txhawm rau tshawb xyuas cov qauv hauv av hauv av hauv kev siv cov kav dej geological, geological drilling kav dej, dej hauv av, roj, natural gas thiab ntxhia cov peev txheej, drilling rigs yog siv.Petroleum, natural gas, thiab mining yog inseparable ntawm drilling, geological drilling, thiab seamless steel kav rau roj drilling.Cov khoom siv drilling muaj xws li cov tub ntxhais sab nraud, cov tub ntxhais tub ntxhais, cov kav dej, thiab cov kav dej tho.

Covlaum cev yog tob rau hauv qhov tob ntawm ntau txhiab meters.Cov xwm txheej ua haujlwm yog qhov nyuaj heev.Cov yeeb nkab laum yog raug rau qhov nro thiab compression, khoov, torsion thiab tsis sib xws cuam tshuam kev ntxhov siab.Nws tseem raug rau av nkos thiab pob zeb hnav.Yog li ntawd, cov yeeb nkab yuav tsum muaj lub zog txaus, hardness, hnav tsis kam thiab cuam tshuam toughness.