№1

G.S.Oganov
Mikhail Timofeevich Gusman

A.P. Gryakolov, A.A. Paramonov
Prospects for application of high pressure drilling at low circulation rates

Yu.R. Ionesyan, G.P. Chaikovsky, V.V. Popko, S.V. Gladyshev
Prospects for application of high pressure drilling at low circulation rates

V.V. Prokhorenko
Current technology of combination drilling of directional wells using a downhole drilling motor-deflector

M.G. Bobrov, S.G. Trapeznikov
The use of screw downhole motors for well drilling

D.F. Baldenko, F.D. Baldenko
Ways of further improvement of screw downhole motors

A.M. Gusman, A.A. Lyshenko
Development of high performance PDC bits for hard formations

V.I. Molodilo
Control of drilling process involving the use of downhole drilling motors

G.S. Oganov, I.L. Barsky, A.M. Gusman, V.V. Prokhorenko
Creating of a new class of energy-efficient directional well profiles matching the natural curvature of the drill string

A.A. Tsybin, P.A. Morzhits, S.A. Tsybin, A.V. Panteleev, A.A. Solomatkin
Well casing and formation isolation equipment

G.S. Oganov, S.A. Shirin-Zade, A.A. Paramonov
Dynamic analysis of the borehole deepening process

I.L. Barsky, A.B. Levina, B.R. Lalayants, R.V. Ivanychev, P.A. Makarov
Methods of development of programs for calculation of well profile as a curve of constant curvature as exemplified by a symmetrical biclothoid