A review of down-hole tubular string buckling in well engineering
نویسندگان
چکیده
منابع مشابه
Study on Storable Down-hole Drilling String Vibration Testing System
Drilling engineering is a high input and risk underground project, which needs the real-time down-hole diagnosis and forecast technique. Drilling string vibration signals contain full and complex vibration waves, which contains the vibration of the drilling string by itself, the vibration stimulated by the interaction of bit and the formation, the vibration induced by colliding between drill st...
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متن کاملString Propagation in a Black Hole
We consider string theory in the background of the two-dimensional black hole as described by the SL(2; R)=U(1) coset theory recently introduced by Witten. We study the spectrum of this conformal eld theory, and give explicit representations for the tachyon vertex operators in terms of SL(2; R) matrix elements. This is used to compute the scattering of strings oo the black hole and to show that...
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ژورنال
عنوان ژورنال: Petroleum Science
سال: 2015
ISSN: 1672-5107,1995-8226
DOI: 10.1007/s12182-015-0031-z