Current Status Of The Duri Steamflood Project Sumatra, Indonesia
- J.C. Pearce (P.T. Caltex Pacific Indonesia) | E.A. Megginson (P.T. Caltex Pacific Indonesia)
- Document ID
- Society of Petroleum Engineers
- SPE International Thermal Operations Symposium, 7-8 February, Bakersfield, California
- Publication Date
- Document Type
- Conference Paper
- 1991. Society of Petroleum Engineers
- 2 Well Completion, 5.6.9 Production Forecasting, 5.1.5 Geologic Modeling, 5.4.6 Thermal Methods, 5.4.10 Microbial Methods, 1.6.9 Coring, Fishing, 1.8 Formation Damage, 4.6 Natural Gas, 5.1.2 Faults and Fracture Characterisation, 6.5.2 Water use, produced water discharge and disposal, 4.2 Pipelines, Flowlines and Risers, 1.6 Drilling Operations, 4.3.4 Scale, 5.5.8 History Matching, 1.2.3 Rock properties, 5.5 Reservoir Simulation, 5.4.1 Waterflooding, 7.3.3 Project Management, 5.6.4 Drillstem/Well Testing, 5.5.2 Core Analysis, 4.1.5 Processing Equipment, 1.10.1 Drill string components and drilling tools (tubulars, jars, subs, stabilisers, reamers, etc), 3 Production and Well Operations, 2.4.5 Gravel pack design & evaluation, 2.4.3 Sand/Solids Control, 5.2.1 Phase Behavior and PVT Measurements
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The Duri Steamflood (DSF) Project is the largest thermal enhanced oil recovery (EOR) project in the world, surpassing in production both the Kern River and Belridge Fields in the San Joaquin valley of California. The field is located in Riau Province, on the island of Sumatra, in Indonesia. Duri is the second largest field in the country, producing nearly 200,000 BOPD of producing nearly 200,000 BOPD of steamflood production. The field is operated and developed by P.T. Caltex Pacific Indonesia (CPI), a production sharing contractor to production sharing contractor to Pertamina, the Indonesian national Pertamina, the Indonesian national oil company.
The DSF Project will develop over 15,000 acres of reservoir utilizing over 4,000 producing wells. At present, only about one third of the present, only about one third of the field is under active steamflood. The DSF Project is divided into twelve development units called Areas. New Areas are about 1,400 acres in size, and are developed, that is, drilled and put on injection, in about 1-3/4 to two years.
The steamflood development involves the use of symmetric patterns of varying size and configuration. Inverted seven spots, approximately 11-5/8 acres in size have been the principal pattern configuration for principal pattern configuration for Area development, including the Area currently being drilled *. For future Areas, inverted five and nine spots, approximately 15-1/2 acres in size are planned. This change has been implemented as a result of detailed reservoir simulation studies conducted in CPI.
The Duri Steamflood Project is unique in that it simultaneously involves the management of existing steamflood Areas, the development of new steamflood Areas, and the design of future Areas to maximize both oil recovery and production efficiency. The balancing of these three objectives is both a complex and vitally important project management task. The approach taken by CPI is a multi-disciplinary one involving development geology, petroleum engineering, and surface facility engineering. Improvements in well stimulation techniques, well completions, flood monitoring and flood design have been realized.
The Duri Field is located in Central Sumatra, approximately 120 kilometers north of the city of Pekanbaru in Riau Province (see Pekanbaru in Riau Province (see Figure 1). The Duri Field is approximately 10 kilometers wide and 18 kilometers long.
The anticlinal structure, shown in Figure 2, is slightly asymmetrical, with the western flank being somewhat steeper.
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