Layer | Fill | Outline |
---|
Map layers
Theme | Visible | Selectable | Appearance | Zoom Range (now: 0) |
---|
Fill | Stroke |
---|---|
Collaborating Authors
Results
A Case Study of Evaluating Reservoirs in the Malay Basin
Zulkipli, Siti Najmi (PETRONAS Carigali Sdn. Bhd.) | Kyi, Ko Ko (PETRONAS Carigali Sdn. Bhd.) | Haddad, Sammy (Schlumberger) | Johan, Zailily (Schlumberger) | Wa, Wee Wei (Schlumberger) | Sinnappu, Suresh (Schlumberger) | Lim, Lee Chin (Schlumberger)
Abstract Formation fluid type and composition are important and integral parameters in reservoir characterization and evaluation. Fluid type and composition can be obtained by capturing samples from limited depth across the producing zone. However, recent advances in downhole fluid analysis (DFA) enable the downhole fluid identification and composition measurement from depth where the fluid samples are either not collected or when PVT results are not readily available. A new wireline technology in insitu fluid analysis (IFA) was used to achieve this objective. This work is based on field data from a newly drilled well in Malay Basin where the targeted reservoirs are comprised of clastic formation on the upper section of tested interval and of Central Luconia carbonate in the bottom section. The insitu fluid analysis technology has successfully guided the identification of oil and water in the clastic formation and gas in the carbonate. The detailed information on oil and gas composition, CO2 content, and fluid density was obtained in real time. The presence of water in clastic formation identified by wireline formation tester triggered interest in more investigation. The water producing interval is located at about 100 m down dip from a nearby development well that is producing gas. Instead of initially planned full DST, decision was made to run the wireline formation testing dual packer module to perform interval pressure transient testing (IPTT) after the well had been cased. The IPTT and DFA confirmed the water section and saved significant cost on running unnecessary testing. The methodology, applications and suggested best practices are presented in this work.
- Asia > Malaysia > South China Sea (0.61)
- Asia > Malaysia > Sarawak > South China Sea (0.25)
- Asia > Malaysia > South China Sea > Malay Basin (0.99)
- North America > United States > Texas > East Texas Salt Basin > Shell Field (0.98)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Pressure transient analysis (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Open hole/cased hole log analysis (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Formation test analysis (e.g., wireline, LWD) (1.00)
- (2 more...)
Abstract Reservoir rock properties, fluids' type and pressure are fundamental parameters for the successful reservoir management in field development planning. Key reservoir parameters are namely horizontal permeability, vertical permeability, damage skin, radius of investigation and reservoir pressure. Together with the reservoir fluid properties, they form critical input to comprehensive production and reservoir engineering studies. Exploration work done through a 3 wells campaign in three main gas fields offshore Malaysia is presented in this paper. The main objective for the operator is to acquire an early and quick identification of hydrocarbon prospects for appraisal wells' planning. Compared to the conventional full scale DST, the combination of Downhole fluid analysis and interval pressure transient test (IPTT) by wireline formation tester were deployed to achieve these objectives. This paper illustrates the successful downhole reservoir fluid identification and formation testing in the reservoirs with the mobility range of 365 to 3020 md/cP. At the interval of interests with the presence of hydrocarbon, dual packer formation tester module offers selectively straddling reservoir sections to provide the capability to conduct controlled local production and interference for reservoir parameters estimation. The methodology, applications and suggested best practices applied throughout the campaign are presented in this paper.
- North America > United States (0.48)
- Asia > Malaysia (0.34)
- Europe > United Kingdom > Scotland (0.28)
- Reservoir Description and Dynamics > Reservoir Fluid Dynamics > Flow in porous media (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Pressure transient analysis (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Formation test analysis (e.g., wireline, LWD) (1.00)
- Reservoir Description and Dynamics > Formation Evaluation & Management > Drillstem/well testing (1.00)