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IssuesArchive of Issues2013-4pp.357-363

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D.M. Klimov, V.I. Karev, Yu.F. Kovalenko, and K.B. Ustinov, "Mechanical-Mathematical and Experimental Modeling of Well Stability in Anisotropic Media," Mech. Solids. 48 (4), 357-363 (2013)
Year 2013 Volume 48 Number 4 Pages 357-363
DOI 10.3103/S0025654413040018
Title Mechanical-Mathematical and Experimental Modeling of Well Stability in Anisotropic Media
Author(s) D.M. Klimov (Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr-t Vernadskogo 101, str. 1, Moscow, 119526 Russia, klimov@ipmnet.ru)
V.I. Karev (Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr-t Vernadskogo 101, str. 1, Moscow, 119526 Russia, wikarev@ipmnet.ru)
Yu.F. Kovalenko (Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr-t Vernadskogo 101, str. 1, Moscow, 119526 Russia, perfolinkgeo@yandex.ru)
K.B. Ustinov (Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, pr-t Vernadskogo 101, str. 1, Moscow, 119526 Russia, ustinov@ipmnet.ru)
Abstract Virtually all modern gas and oil production technologies are based on directional drilling, and hence well stability issues are of primary importance. It was established that the stability of slanted wells significantly depends on the deformation and strength characteristics of rocks, on the presence and degree of rock anisotropy, and also on the well geometry and the pressure at the well bottom. We suggest a new approach to this problem by modeling the hole making process with the use of a triaxial independent loading test system (TAILTS) based on the mechanical-mathematical model developed here.
Keywords rock, fracture, creeping, well, oil, stability, specimen, modeling, test bench
References
1.  I. M. Petukhov and A. P. Zapryagaev, "Stability of Wells of Different Diameter Depending on the Rock Stress State," Neft. Khoz., No. 5, 22-25 (1984).
2.  V. S. Blokhin and V. D. Terent'ev, "A Method for Estimating the Well Wall Stability," Neft. Khoz., No. 7, 12-15 (1984).
3.  Yu. N. Vasiliev and N. I. Dubinina, "Model of Stress State of Well Bottom Zone," Neft' Gas, No. 4, 44-47 (2000).
4.  A. I. Spivak and A. N. Popov, Rock Fracture in Well Drilling (Nedra, Moscow, 1994) [in Russian].
5.  K. M. Tagirov and V. I. Nifontov, Well Drilling and Oil-and-Gas Formation Exposing in Depression (Nedra, Moscow, 2003) [in Russian].
6.  D. M. Klimov, V. I. Karev, Yu. F. Kovalenko, and K. B. Ustinov, "Mathematical and Physical Modeling of Rock Fracture in Slanted Well Drilling," Tekhnolog. TEK, No. 5, 22-27 (2006).
7.  S. G. Lekhnitskii, Theory of Elasticity of Anisotropic Body (Nauka, Moscow, 1977) [in Russian].
8.  A. E. H. Love, A Treatise on the Mathematical Theory of Elasticity (Cambridge Univ. Press, Cambridge, 1927; ONTI HKGiP SSSR, Moscow-Leningrad, 1935).
9.  S. A. Batugin and R. K. Nirenburg, "Approximate Relation between the Elastic Constants of Anisotropic Rocks and the Anisotropy Parameters," Fiz.-Tekh. Probl. Razrab. Polez. Iskopaemykh, No. 1, 7-11 (1972) [J. Mining Sci. (Engl. Transl.) 8 (1), 5-9 (1972)].
10.  Yu. P. Zheltov and S. A. Khristianovich, "Hydraulic Fracture of Oil-Bearing Bed," Izv. Akad. Nauk SSSR. OTN, No. 5, 3-41 (1995).
11.  K. Terzaghi, Theoretical Soil Mechanics (John Wiley & Sons, New York, 1943; Gosstroiizdat, Moscow, 1961).
Received 15 March 2013
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