The Future for Bunduq
On the level of Productivity and Development projects of the fields
The United Arab Emirates and the State of Qatar are both main Oil & Gas producing countries situated on the south eastern of Arabian Gulf. Their Highness Shaikh Khalifa Bin Zayed Al-Nahyan, President of UAE, and Shaikh Tamim Bin Hamad Bin Khalifa Al-Thani, The Amir of Qatar, pursuing a wise and prudent policy supported by affluent oil & gas reserves, have led their countries along the path to modernization. They are presently ranked at the top list of wealth countries and among the most prosperous countries in the world.
Abu Dhabi, the capital of the United Arab Emirates has been converted into a modern metropolis with an abundance of trees lining its boulevards and tall buildings standing against its skyline. On the other hand,Doha, the capital of Qatar, continues to retain the appearance of a time honored metropolis of the region, however, it is too rapidly being converted into a modern cities which boasts a scenic highway along the serene water of the Arabian Gulf.
El Bunduq Field was discovered in 1965 by Abu Dhabi Marine Authority (ADMA). The El-Bunduq field isl ocated 200 kilometres northwest and 100 kilometres of the shores of Abu Dhabi and Doha respectively, straddling the offshore boundary of the two Arabic states. The efficient manner in which the field has been developed and operated to date has contributed, in its own way, to the prosperity of the two host states and the well-being of their citizens.
Hydrocarbons in the U. A. E. and Qatar have been found widely in the geologic column, from the Triassic and Jurassic. The Thamama group, Arab Formations and Mishrif Formation are known as most prolific reservoirs in the region. In addition, the Khuff and Pre-Khuff Formation have potential of large reserves of Gas.
Energy’s optimum usage
In El-Bunduq field, oil has been produced from both D and Clayers of the Upper Jurassic, Arab Formation. The Arab D layer is mainly composed of a carbonated sequence (limestone/dolomite), being underlain by the Diyab Formation and is overlain by alternation of carbonate and evaporates (Anhydrite) layer of Arab C formation. The an hydrites are seal rock for oil vertical migration; hence act as effective cap rock for the carbonate reservoirs of the D and C . The Arab oils are structurally trapped in the field and its structure has a domes configuration, which is believed to have resulted from the tectonic deep seated Hormuz salt diaprisim. A Future UAE & Qatar joint project of Khuff and Pre Khuff for deep gas exploration is undergoing.
Crude oil which is recovered from 28 production wells at well head platform is conveyed through a 27 kilometres pipeline to the DasIsland terminal from the Central Platform installed in the centre of the field. El-Bunduq’s crude bears a close resemblance to crude from the Zakum field in characteristics. Hence, the two are blended and stored together in crude tanks on Das Island and then called “Lower Zakum Crude”. Crude oil tankers which load the Arab oil at Das traverse the Indian Ocean after leaving the Gulf and find their way to various oil refineries in Japan.
From the view point of reservoir conservation and efficient development of the field, Bunduq Company commenced an expeditious secondary recovery scheme, which is a means of recovering crude more efficiently and improving the recovery factor. The method implemented by Bunduq is so called“Alternating Line Drive Pattern” which places injectors and producers alternately, injecting chemically treated seawater into the reservoir. Bunduq Company’s secondary recovery facilities comprise 28 producers and 23 injectors,a living quarters platform (LQP), water injection platform (WIP), central collector platform (CCP), gas sweetening platform (GSP) and flare stack, allocated offshore in the center of the field.
Actual engineering, fabrication, etc. of the related facilities commenced in January 1981 and required three years for the major components to be installed. Consequently, oil production and water injection commenced in November 1983 and in January 1984 respectively.
The Arab D formation is the main reservoir of El-Bunduq. However, drilling operations under the secondary recovery scheme proved thatthe Arab C formation situated immediately above Arab D zone was also oil bearing. The ‘Production tests’ of the Arab C formation was commenced in January 1984. Afterwards, the drilling of three injection wells, installation of a jacket for injection wells previously drilled, wellhead works and pipe-laying were completed and the actual water injection was initiated in August 1987. The Uwainut reservoir is situated underneath the Arab reservoirs.
The existence of the El-Bunduq field was confirmed by AbuDhabi Marine offshore operations (ADMA), the owner of the concession at that time, by the drilling of well No. 1 in 1964. In July 1970, Bunduq Company Limited was established with the equity shared between BP and CFP (TOTAL) on a 2/3, 1/3 basis and with Bunduq Company inheriting the El-Bunduq concession. In December 1970, United Petroleum Development Company Limited (UPD) acquired one half of BP''s share in the company resulting in BP, TOTAL and UPD possessing a third each of Bunduq Company shares.
As development funds were concerned, BP and UPD each agreed to shoulder 50% of the cost, whereas TOTAL opted to remain dormant. Wells No. 3 and 4 were drilled during 1971 and 1972, going on to No. 7 and installing crude processing facilities on Das Island by November 1975.
Construction of the facilities under the secondary recovery scheme was carried out from 1981 to 1983, and the outlay for the scheme was to be 97% by UPD and the balance of 3% by BP. Subsequent to the completion of the secondary recovery scheme, production recommenced in November 1983, production figure surpassed the 200,000,000 barrels mark in March 2006 (inclusive of production under primary recovery).
Water injection commenced in January 1984. The production of crude and injection of water is skilfully handled by experienced personnel.
The gas injection platform is the new addition to our offshore complex in 2005. Gas injection scheme aims to minimize gas flaring at the field while enhancing oil recovery. 40MCF of associated gas are re-injected daily in the Arab reservoirs through two wells, EB-48 & EB-14A.
Early, 2015, after finding certain achievements in El Bunduq field, the two companies agreed to transfer the full management responsibilities to the United Petroleum Development Company Limited (UPD) who has acquired the BP 3% share in El Bunduq field and become the owner of the total 100% shares of Bunduq Company with generosity and support of both UAE and Qatar government.