Effective Elastic and Neutron Capture Cross Section Calculations Corresponding to Simulated Fluid Properties from CO2 Push-Pull Simulations

Abstract

The submission contains a .xls files consisting of 10 excel sheets, which contain combined list of pressure, saturation, salinity, temperature profiles from the simulation of CO2 push-pull using Brady reservoir model and the corresponding effective compressional and shear velocity, bulk density, and fluid and time-lapse neutron capture cross section profiles of rock at times 0 day (baseline) through 14 days.
First 9 sheets (each named after the corresponding CO2 push-pull simulation time) contains simulated pressure, saturation, temperature, salinity profiles and the corresponding effective elastic and neutron capture cross section profiles of rock matrix at the time of CO2 injection. Each sheet contains two sets of effective compressional velocity profiles of the rock, one based on Gassmann and the other based on Patchy saturation model. Effective neutron capture cross section calculations are done using a proprietary neutron cross-section simulator (SNUPAR) whereas for the thermodynamic properties of CO2 and bulk density of rock matrix filled with fluid, a standalone fluid substitution tool by Schlumberger is used.
Last sheet in the file contains the bulk modulus of solid rock, which is inverted from the rock properties (porosity, sound speed etc) based on Gassmann model. Bulk modulus of solid rock in turn is used in the fluid substitution.

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Additional Info

DOE Project Name: Push-pull well testing using CO2 with active source geophysical monitoring
DOE Project Number: EE0001554
DOE Project Lead: Sean Porse
DOI: 10.15121/1452749
Last Updated: over a year ago
Mar
2018
Data from March, 2018
Submitted Mar 7, 2018

Contact

Lawrence Berkeley National Laboratory


510.486.7419

Status

Publicly accessible License 

Authors

Nikita Chugunov
Schlumberger Doll Research
Bilgin Altundas
Schlumberger Doll Research

Keywords

geothermal, energy, CO2, carbon dioxide, push-pull, active seismic, well logging, EGS, neutron capture, SNUPAR, stimulation, sensitivity analysis, characterization, fault, fracture, fluid, brine

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