Production Data Analysis in Complex Fractured Gas Reservoirs : Reserves Estimation and Diagnostics
- Author:
- Liu, Rui
- Published:
- [University Park, Pennsylvania] : Pennsylvania State University, 2019.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Ayala, Luis F., 1974-
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- Restrictions on Access:
- Open Access.
- Summary:
- A signicant percentage of hydrocarbon reservoirs around the world is fractured[1]. Moreover, the major part of gas reservoirs are also fractured type, so production data analysis on fractured reservoirs are necessary. Applying pseudo-functions is a conventional technique to analysis production data. However, Ayala and Zhang(2013), Zhang and Ayala (2014a, 2014b) introduced a density-based approach to explicitly estimating original-gas-in-place without pseudo-variables. In this approach, the use of depletion-driven parameters, and enables data analysis get rid of pseudo-functions in BDF. This method has been proved successfully describe gas well behavior under constant or variable bottomhole pressure for boundary-dominated ow. In light of density-based approach principle for production analysis at constant bottomhole pressure, this study tested how it works in a variety of fractured reservoirs built in COMSOL Multiphysics. The behavior andperformance of this new approach rigorously veried the density-based straight line approach was able to accurately estimate the amount of original gas in place (OGIP) and predict production performance for these complex fractured systems in dry gas reservoirs. This study further demonstrates the reliable location of lateBDF in harmonic type curve analysis which can be used in production analysis by using dimensionless time.
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- Dissertation Note:
- M.S. Pennsylvania State University 2019.
- Technical Details:
- The full text of the dissertation is available as an Adobe Acrobat .pdf file ; Adobe Acrobat Reader required to view the file.
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