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We strongly recommend completing SWT-GUARANT
at least ones at the fields where Sigor Corporation have not provided well stimulation services yet.
To manage and control process of changing the
permeability of a rock mass, such process must be recreated several times in rock mechanical laboratory.
The core sample will be placed in the chamber where formation conditions are created.
The extreme stress is applied to core sample to model explosion.
Critical data is collected and used to determine capacity of the given formation to dilate and to calculate
possible increase in the well productivity.
Extensive studies of the reservoir rock including its
mechanical characteristics allow standardizing the rock's responsiveness to dilatancy under dynamic stress and make
SWT-ECONOM service possible which in return will pass substantial cost benefits to a client.
Following analysis will complete the rock studies:
· Hydraulic observation.
· Determine the rock static properties
(Young’s Modulus and Poisson’s Ratio) and compressive strength under uniaxial and triaxial conditions.
· Determine sonic velocities, unstressed (uniaxial) condition and
stressed (triaxial) condition with Young’s modulus and Poisson’s ratio calculations.
· Determine the changes in rock permeability
after dynamic loading for rock specimens in regime of laminar hydraulic flow according to Darcy’s
law using a liquid with low viscosity.
· Determine the general regularities of
rock behavior as dilatant media, in accordance with Sigor Corporation proprietary information.
· Investigate elastic and dilatant rock’s
characteristics and its dependence on its natural properties such as porosity and permeability under triaxial
dynamic stress, by imitating geological conditions of the formation at the productive interval and applying
non-uniform dynamic stress, in accordance with Sigor Corporation proprietary information.
· Ascertainment of the relationship between
rock properties (porosity, strength, permeability and so on) in the state of dilatant deconsolidation, in
accordance with Sigor Corporation proprietary information.
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