Interpretation of Bottom Hole Temperature Data from CO2 Injection Projects

6 Pages Posted: 8 Apr 2021

See all articles by Srikanta Mishra

Srikanta Mishra

Battelle Memorial Institute

Laura Keister

Battelle Memorial Institute

Sanjay Mawalkar

Battelle

Date Written: April 5, 2021

Abstract

A new approach is presented for analyzing bottom hole temperature (BHT) data from CO2 injection projects. The basic premise of the methodology is: (a) during injection, both bottom hole pressure (BHP) and BHT approach quasi-stabilized values, and (b) the ratio of these changes (from ambient conditions) is the same as the ratio of slopes from transient Horner analysis of temperature and pressure data from the subsequent warmback/falloff periods. Once the slope of the pressure Horner plot is estimated from a steady-state temperature-pressure change cross plot and the slope of a temperature Horner plot, the formation permeability can be readily determined. This provides an independent estimate of formation permeability without utilizing transient pressure data.

Keywords: CO2 injection, bottom hole temperature, bottom hole pressure, Horner analysis, permeability

Suggested Citation

Mishra, Srikanta and Keister, Laura and Mawalkar, Sanjay, Interpretation of Bottom Hole Temperature Data from CO2 Injection Projects (April 5, 2021). Proceedings of the 15th Greenhouse Gas Control Technologies Conference 15-18 March 2021, Available at SSRN: https://ssrn.com/abstract=3820095 or http://dx.doi.org/10.2139/ssrn.3820095

Srikanta Mishra (Contact Author)

Battelle Memorial Institute ( email )

4000 NE 41st St.
Seattle, WA 98105
United States

Laura Keister

Battelle Memorial Institute

4000 NE 41st St.
Seattle, WA 98105
United States

Sanjay Mawalkar

Battelle ( email )

500 King Avenue
Columbus, OH 43201
United States

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