Semester of Graduation

Spring 2018

Degree

Master of Science in Petroleum Engineering (MSPE)

Department

Craft & Hawkins Department of Petroleum Engineering

Document Type

Thesis

Abstract

Pressure well testing has been widely used in the oil and gas industry for determining reservoir properties and well conditions. More recently, studies have been done to show the applicability of well testing for the continuous monitoring of CO2 storage projects. In the current thesis, we study a diverse range of pressure transient techniques with the same goal of characterizing CO2. The thesis finds that the use of pressure transient analysis is a strong tool for CO2 monitoring. Each method discussed within the paper has its advantages and disadvantages. The first technique is able to determine the CO2 plume extent in the reservoir, using a simple test, but relies on high resolution gauges and is unable to determine the location of the CO2. The second technique is able to determine the location of the plume boundary along with the average gas saturation but may require multiple monitoring locations inside and outside the plume to determine the boundary. The third method is able to determine the location of the plume boundary by use of a single well test, but other than the boundary, no other information can be derived. The last chapter builds the ground work for the first analytical linear composite model in the frequency domain. This approach has the potential to provide the most accurate representation of the CO2 within the reservoir in an efficient way.

Date

4-1-2018

Committee Chair

Zeidouni, Mehdi

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