Cov txheej txheem:
Video: Yuav ua li cas koj xam Overpull ntawm ib tug laum yeeb nkab?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Muab cov huab cua hnyav los ntawm qhov buoyancy factor rau xam tus laum cev nuv load. Hauv qhov piv txwv, muab 250, 000 los ntawm 0.6947 sib npaug ntawm qhov sib npaug ntawm 173, 675 lbs. Tshem tawm tus nuv load los ntawm lub zog tawm los rau xam tus overpull . Hauv qhov piv txwv, 450, 675 rho tawm 173, 675 sib npaug ib overpull 276, 325 lbs.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog Overpull hauv drilling?
Lub npe overpull (feem ntau uncountable, plural overpulls ) (nyob rau hauv ib lub qhov dej roj) Tus nqi ntawm cov quab yuam uas yuav tsum tau exerted rau ntawm ib tug yeeb nkab kom rub nws upward, saum toj no thiab tshaj nws tus kheej hnyav, vim yog luag thiab lwm yam quab yuam.
Kuj Paub, laum yeeb nkab stretch xam li cas? Kev ntxhov siab vim kev ntxhov siab axial; Thermal strain vim kub hloov; Tag nrho strain; Siab = ncab / thawj ntev li ntawd ncab = strain x original length.
Kuj kom paub, koj ua li cas thiaj nrhiav tau lub zog tensile ntawm lub laum yeeb nkab?
Tensile zog = Yam tsawg kawg nkaus Yield zog × Hla ntu ntu. Yam tsawg kawg nkaus yield zog ntawm cev tuaj yeem pom hauv qib ntawm cov txoj hlua . Piv txwv li, lub cev qib yog J-55 muaj yam tsawg kawg nkaus yield zog ntawm 55,000 psi. Tus lej tom qab cov tsiaj ntawv sawv cev qhov tsawg kawg nkaus yield zog hauv 1,000 psi.
Yuav ua li cas koj xam qhov ntim ntawm ib txoj hlua xyaum?
Drill String Volume nyob rau hauv Barrels
- Cia peb pom cov hlua tho ntim hauv cov thoob (bbls) rau cov yeeb nkab tho, laum dab tshos, thiab tag nrho cov hlua tho qhov ntim.
- Cov qauv dav dav kom pom cov hlua tho ntim yog raws li hauv qab no -
- Drill string volume in Barrels = ID^2 / 1029.4 x Pipe Length.
Pom zoo:
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