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Comparative study of techniques to analyze formation pressure data for multilayered reservoir | |
Author | Tran Thanh Cuong |
Note | A Research Stydy submitted in partial fulfillment of the requirements for the Degree of Master of Engineering (Professional) in Geoexploration and Petroleum Geoengineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Abstract | Pressure-depth plots have been used to evaluate fluid contacts, fluid density, and pressure compartmentalization in formation tester pressure surveys. In complex and heterogeneous reservoirs, such as multilayered reservoirs with gas, oil, and water interbedded, the conventional pressure-depth plot and pressure gradient analysis of wireline pressure data is a tough problem and in uncertain terms, and identification of in-situ fluid type can be difficult. In this thesis, I compare conventional and advanced statistical techniques of pressure gradient analysis and fluid contact determination. I develop a tool to improve pressure gradient interpretation by performing statistical formation pressure interpretation procedures. I also present case studies of interpretation of wireline pressure measurements in a multilayered reservoir with gas, oil, and water interbedded. The results show that the conventional and advanced statistical techniques of pressure gradient analysis are mutually supportive for the detection of fluid contacts, gradient properties and in-situ fluid type in reservoirs. The results also show that statistical techniques significantly reduces uncertainty and consumption of time in formation pressure interpretation |
Year | 2011 |
Type | Research Study Project Report (RSPR) |
School | School of Engineering and Technology (SET) |
Department | Department of Civil and Infrastucture Engineering (DCIE) |
Academic Program/FoS | Geotechnical Engineering (GE) |
Chairperson(s) | Pham Huy Giao; |
Examination Committee(s) | Suwat Athichanagorn;Noppadol Phien-wej; |
Scholarship Donor(s) | Thang Long Joint Operating Company; |