The Takula Field is the most prolific oil field in the Republic of Angola. The field is located in the Block 0 Concession 40 km from the Malongo terminal in water depths of approximately 60 m. The Takula Field once accounted for one-third of Angola's total oil production.
The Takula Field is comprised of seven stacked reservoirs. The field was discovered in October 1971 and placed on primary production in December 1982. Under primary production the field achieved rates of 130 MBOPD. A peripheral waterflood was initiated in the Vermelha reservoir in December 1990. The field achieved its peak production rate of 170 MBOPD in April 1995.
In October 1992, Improved Oil Recovery technology was applied to the Mesa reservoir with horizontal infill wells. Well TK-F8 was the first horizontal well in Angola. Horizontal well technology was applied to the Vermelha reservoir and was followed by the first Angolan multilateral well in January 1998.
In July 1999, the Mesa reservoir was placed on waterflood and became the first waterflood in Angola to rely solely on lateral wells. This reservoir management strategy was later applied to the Northwest Takula fault block and the S7 flow unit of the Vermelha reservoir to aid in the development of lower reservoir quality regions.
Topics to be discussed include:
Geology of the Greater Takula Area
Exploration history of the field
Primary Production including: fabrication, drilling, and production experiences; reservoir surveillance and management strategies
Secondary Production including: transition experiences going from primary to secondary production, infrastructure modifications, and adjustments to the reservoir surveillance and management strategies
Application of IOR technologies including: single- and multi-lateral infill wells and lateral-well developments of poorer reservoir quality regions and flow units
Current challenges and future plans for the field including: maintaining base production from a mature reservoir with aging infrastructure and heightened environmental awareness
The partnership between the Republic of Angola, its people, and the Cabinda Gulf Oil Company (CABGOC) began informally with geological reconnaissance surveys of the province of Cabinda in 1954. This partnership was formalized in 1957, with the award of exclusive hydrocarbon exploration and development rights in the province to CABGOC.
During the 1990's, the Republic of Angola became one of the premier oil producing regions of the world. With oil production exceeding 900 MBOPD (143.1x103 m3/d) in 2003, the Republic of Angola is the second largest crude oil producer in sub-Saharan Africa and the seventh largest exporter of crude oil to the USA; exporting over 350 MBOPD (55.6x103 m3/d), approximately 5 percent of the total US demand. The Takula Field, situated in Blocks 44, 45, 56, and 57 of Area A in the Block 0 Concession (see Figure 1), is the largest producing oil field in the Republic of Angola. It is located approximately 28 km west of the nearest landfall and 40 km northwest of the Malongo terminal in water depths ranging from 55 to 65 m.