| Author | Rattanaporn Rattanabunlang |
| Call Number | AIT Thesis no.GE-12-14 |
| Subject(s) | Reservoirs--Evaluation--Thailand--Phrae Sub Basin
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| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Geotechnical and Earth Resources Engineering with Area of Specialization in Geosystem Exploration and Petroleum Geoengineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-12-14 |
| Abstract | The Phrae is one of the newest onshore basins of Thailand that has been developed and operated by the Northern Petroleum Development Center Defense Energy Department. In this development phase, measurement of petrophysical properties, i.e., porosity, permeability and water saturation is very important for reservoir characterization. The main objective of this study is to perform a petrophysical analysis to evaluate Maesod formations found in the Phrae basin. The first work of the study was to collect all available data, in particular core testing and well logging, from one well named PH - TK - 54 - 01. One of the biggest difficulties was the old and limited well log data set, e.g., the resistivity curves were avail able only in the hard copies of paper records. These curves were digitized using a code and procedure in the MATLAB. After that all well logging data, available in digital file, could be fully interpreted using Techlog software, which was donated by Schlu mberger to AIT. As a result, nineteen of potential reservoir intervals were identified with total thickness 397.00 ft. It worth noting that prediction of porosity was done based on the Early Stopping Back - propagation ANN method. Water saturation of the san d zones was estimated by different methods such as Archie and Simandoux model. It was found that the porosity ranges from 0.15 to 0.30 and the water saturation varies from 0.45 to 0.76. The relationships between porosity and permeability (Poroperm) were in vestigated to help evaluate permeability of the uncored zones. Flow unit characterization, consisting estimation of flow zone indicator (FZI) and free fluid index (FFI), was also made, which were found equal to 22.28 and 98.60 %, respectively (established for the 2,551 ft to 5,000 ft depth zone) |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-12-14 |
| Type | Thesis |
| 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) | Noppadol Phien-wej;Pinan Dawkrajai; |
| Scholarship Donor(s) | Royal Thai Government;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |