Numerical simulation by ECLIPSE on polymer injection in the Benchamas Oilfield as an EOR method using the high-performance computing cluster | |
| Author | Kittipol Noianusontigul |
| Call Number | AIT Thesis no.GE-07-16 |
| Subject(s) | Oil field flooding--Simulation methods--Thailand Oil fields--Production methods--Thailand Benchamas Oilfield (Thailand) |
| Note | A thesis proposal submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-07-16 |
| Abstract | The Benchamas field is the largest oil producing field in Thailand. It was discovered in 1995. A total of approximately 88 MMBBL has been produced at this oil field. The first waterflooding was injected in the Benchamas Field in November 2000 with 80,000 BPD of water injection capacity. After 7 years of using water injection for oil recovery, the production is starting to decline. Tertiary recovery method is now considered as an alternative to improve the field production. In this study, the possibility of the polymer flooding as an EOR method is investigated for the Benchamas Oilfield, B-30 Sand reservoir, as this technique is reported to be able to improve the sweep and displacement efficiency of water flooding in suitable conditions like as practiced in many oil fields in the world. Based on the data provided by Chevron with the agreement of other partners like PTTEP, MOECO, Palangsophon Ltd, a reservoir model for the Benchamas oil field B-30 Sand was constructed. The simulation has been further done by means of the ECLIPSE software that was donated to Asian Institute of Technology (AIT) by Schlumberger Oversea S.A. ECLIPSE was successfully installed on the AIT high-performance computing cluster. Six scenarios were simulated, and namely, scenario 1 is the basic case with water flooding starting from 2001 to 2007 for history matching and continued to 2014 for prediction; scenario 2 is for polymer flooding with the 500 ppm concentration; scenario 3 is for polymer flooding with a concentration of 800 ppm; scenario 4 is for polymer flooding with 1000 ppm; scenario 5 is for polymer flooding with 1500 ppm and scenario 6 is for polymer flooding of 2000 ppm. The purpose of running simulation at different polymer concentration is to find out an optimal one of EOR with the best possible economic benefit. Scenarios 2 to 6 showed that polymer flooding could improve oil recovery and the 2000 ppm concentration gave the best sweep efficiency. Based on the simulation results, an economic analysis has been done, which indicated that the polymer injection with 500 ppm, from 2008 to 2013, would give the high profit at the oil price above 70 USD per barrel. In this study, efforts have been made in derivation of an analytical solution of one dimensional equation of polymer transport. Such a closed-form solution if well developed can be used as quick tool to assess the polymer injection efficiency. The change of polymer concentration injected in a well with the increasing radial distance far from the well. Details of this analytical solution are shown in Appendix A |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-07-16 |
| 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) | Park Kyung Ho;Bergado, Dennes T.; |
| Scholarship Donor(s) | Royal Thai Government; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |