Geology, geography and global energy

Scientific and Technical Journal

On the effect of the maximum lateral mountain areas pressure on the stability of the borehole walls astrakhan gas condensate field

2014. №3, pp. 150-153

Marchenko Konstantin I. - Chief Engineer, JSC "Gazprom dobycha Astrakhan", 61a Savushkin st., Astrakhan, 414056, Russian Federation, markonig@inbox.ru

Bashmakova Anna N. - Head of SMTPDSGGK, JSC "Gazprom dobycha Astrakhan", 61a Savushkin st., Astrakhan, 414056, Russian Federation

Kalashnik Zhanetta V. - C.Sc. in Geological and Mineralogical, Associate Professor, Astrakhan State Technical University, 16 Tatishchev st., Astrakhan, 414025, Russian Federation, kalashnik_10@mail.ru

In structural analysis, wells are typically, taken to be guided by data value of the gradient formation pressure gradient and permeability fracturing rocks (for determining intervals position "shoe" of the casing). This article discusses the influence of rock pressure on the stability of the walls of the wells in the intervals of occurrence of salt strata of the Astrakhan gas condensate field. Presented 2-d model of vertical and horizontal mining pressures in the section. The calculation of the vertical rock pressure for each cell. A linear dependence of the vertical rock pressure increase with depth.

Key words: геомеханика, боковое горное давление, текучесть солей, устойчивость стенок скважин, горная порода, месторождение, физико-механические свойства, плотность, коэффициент Пуассона, напряжение, geomechanics, lateral confining pressure, flow salts resistance bo

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