TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Bayonet Joint Opportunities for Using in Large Diameter Drill Stem Connections
(Oportunităţi ale asamblărilor cu şliţuri folosite în construcţia garniturii de foraj de diametre mari)
Vol LXII • No. 4B/2010
Adrian Creiţaru
Universitatea Petrol-Gaze din Ploieşti, Bd. Bucureşti 39, Ploieşti
e-mail: adrian_creitaru@yahoo.com

 Keywords   large diameter drilling, drilling stem, bayonet connection.

 Abstract
In large diameter drilling domain the drill stem may use one of the following assembly types: thread shouldered, flanged or bayonet connection. Among these, first two kinds are often in practical use.
The bayonet joint, even if less known and used, has some certain advantages such as: fast operating, both rotary wise torque applying and a benefic working loads separation, on its own separate components.
The calculus particularities of bayonet connection are concerning the specificity and various stress approach lines for its parts as well the shape types related to technological solutions.

 Rezumat
În forajul de diametre mari, pentru garnitura de foraj se pot folosi următoarele tipuri de asamblări ale componentelor: filetate cu umăr, cu flanşe sau cu şliţuri. Între acestea, primele două au fost utilizate în mod sistematic.
Asamblarea cu şliţuri, mai puţin cunoscută şi folosită la asamblarea elementelor garniturii, prezintă câteva avantaje certe: rapiditatea manevrei, posibilitatea utilizării în ambele sensuri de rotaţie cât şi separarea încărcărilor principale (de lucru), pe elemente distincte ale acesteia.
Particularităţile calculului acestor îmbinări sunt date de specificul şi diferenţierile de solicitare ale componentelor ca şi de variantele de formă impuse de soluţiile constructive.



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