V. Sh. Shagapov, I. G. Khusainov, R. M. Khafizov, “Pressure relaxation in a hole surrounded by porous and permeable rock in hole pressure tests with gas injection”, Prikl. Mekh. Tekh. Fiz., 2006, Volume 47, Issue 1,Pages <nobr>109

This article is cited in 5 papers

Pressure relaxation in a hole surrounded by porous and permeable rock in hole pressure tests with gas injection

V. Sh. Shagapov^a, I. G. Khusainov^b, R. M. Khafizov^b

^a Institute of Mechanics, Ufa Scientific Center, Russian Academy of Sciences, Ufa, 450000, Russia
^b Sterlitamak State Pedagogical Institute, Sterlitamak, 453103, Russia

Abstract: The pressure testing of a hole in porous and permeable rock by gas injection is considered. An integral equation for the hole pressure relaxation is obtained whose numerical and analytical solutions describe the dependence of the relaxation time of hole pressure on the reservoir properties of the surrounding porous rock as well as on the initial gas content and the initial pressure gradient in the hole.

Keywords: pressure relaxation, hole pressure testing, porous bed, fluid filtration, elastic capacity.

UDC: 622.276.031

Received: 06.04.2004
Accepted: 03.03.2005