The Houston Geomechanics Discussion Group is a group of Petroleum Geomechanicists that meets in Houston.

The next meeting will take place at 5:30 PM, Wednesday May 13th, 2015 with a presentation entitled "Constraining fluid and pore-volume compressibility through the integration of reservoir engineering and geophysical methods" by Reynaldo Cardona, Chevron.

The talk will take place in the iCenter located on the ground floor of the Schlumberger building at 1325 S. Dairy Ashford, Houston (NE corner of the intersection between S. Dairy Ashford and Briar Forest Drive) - see Map. Details of the talk are as follows:

Constraining fluid and pore-volume compressibility through the integration of reservoir engineering and geophysical methods

Reynaldo Cardona, Chevron


Pressure-transient experiments performed by engineers, perturb the pore pressure of the reservoir and test the compliance of the rock's pores. Seismic experiments performed by geophysicists perturb the confining  pressure and test the compliance of the bulk rock volume. Because the elasticity theory provides relations between the pore and bulk compressibilities, well test and seismic data analysis can be used jointly to characterize the elasticity of the reservoir rocks. Smit and Sayers (2005) have also shown that reservoir pressure measurements often show changes due to tidal effects and that these variations can be analyzed to constrain the pore-volume compressibility and fluid bulk modulus.

This presentation will argue in favor of the further integration of engineering and geophysical quantitative methods and present an old case study on constraining the value of the normal fracture compliance of a fractured reservoir using well test data.

Speaker Biography

Reynaldo Cardona is a Geophysicist at Chevron Corporation and team leader of the Reservoir Properties From Seismic Team.  He received a Ph.D. in Geophysics from the Colorado School of Mines in the year 2002. He started his career with Chevron’s  Energy Technology Company followed by assignments in the Latin America and South Africa business units. He is interested in rock physics, quantitative seismic analysis and the integration of geological and engineering data into the estimation of reservoir properties from seismic data.