Geotechnical Laboratory

High-Temp Triaxial Analysis

We are home to one of the few high-temp full core triaxial testing apparatus in Calgary, AB.

During a triaxial analysis, the caprock is placed in a special steel cell that has pressure applied to the side of the sample to represent the effects of the samples being buried underground. The samples are then compressed and the physical properties of the samples are determined. Additionally, the rocks are failed to determine shear strength.

Samples need to be run cold as well as hot since part of the caprock is heated by steam. The caprock core testing must be done correctly to represent true conditions for oilfield use. Therefore, it is imperative that the samples be processed by a lab that specializes in testing caprock core for steam-assisted gravity drainage (SAGD) and cyclic steam stimulation (CSS) applications.

Lab test data can be correlated and combined with other information collected, for example mini-frac results and logs, to confirm the caprock’s physical properties.

Applications

The triaxial tests generate essential inputs for caprock modelling and are therefore necessary to determine caprock integrity in steam-assisted gravity drainage (SAGD) and cyclic steam stimulation (CSS) projects.

Features & Benefits

Core samples are tested at representative conditions for oilfield use. BGES has specialized equipment for high temperature testing.
Additional services provided by BGES includes collecting the core at wellsite and transferring the core prudently for physical testing, providing a “chain of custody” and ultimately, a complete caprock integrity analysis.

Operations

BGES has obtained high-quality testing apparatus specifically for caprock testing. We understand the importance of conducting the tests correctly. Shearing samples too quickly, without allowing the fluids to drain or the pore pressure to be accurately measured, can render an expensive suite of tests being inadequate.