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Muscat: RAK Petroleum, the oil and gas exploration and production company, announced Tuesday that it has tested gas in the Hamrat Duru 4 well in Block 30 in the Sultanate of Oman.

RAK Petroleum holds a 100 per cent interest in Block 30 subject to a 25 per cent government back-in right upon declaration of commerciality.

The Hamrat Duru 4 well was drilled to test the Shuaiba reservoir which had not been tested in any previous wells on the Hamrat Duru structure.

The Natih A, Natih C and Natih D reservoirs were also tested. The well was drilled to a depth of 1,620 metres and includes a lateral segment to encounter fractures.

Block 30 contains four existing discoveries, Nadir, Al Sahwa, Hafar and Hamrat Duru. A field development plan has been submitted to the Ministry of Oil and Gas for approval that envisages a joint development of the fields with processing in a central facility before tie-in to the Oman gas grid, which is only 16 kilometres away.

The test results were very positive at the Natih A, C and D level with flow rates exceeding those expected. The Shuaiba test has flowed gas at initial rates up to 19 million cubic feet per day and has proven the existence of gas in the reservoir. However, during the test period some water has also been produced when flowing on high choke settings.

Downhole pressure gauges will be removed from the well following a buildup period and the pressure information will enable a determination of the proximity of the gas water contact, or the presence of large fractures entering the water below.

"Success in the Hamrat Duru 4 well is a positive step forward for development of Block 30," said Abdul Aziz Al Ghurair, Chairman of RAK Petroleum's board of directors.