Cooper Energy has announced the commencement of production testing of the Hammamet West-3 field in Bargou Exploration Permit offshore Tunisia
Hammamet West-3 is located 1.6km east of Hammamet West-2 in a water depth of 54 metres.
The objective is to drill and test a highly deviated wellbore through the naturally fractured Abiod Formation reservoir to confirm oil productivity.
The test is being conducted over the 432 metre of Abiod Formation that has been accessed by a near horizontal wellbore.
The Australia-listed oil and gas company is the operator and a 30 per cent joint venture interest-holder of the Bargou Exploration Permit.
The well is currently shut-in, with the next planned operation being opening up of the production test string for a clean-up flow, company sources said.
The test period is likely to continue for four to eight days.
The first phase of the test will attempt to flow the well naturally and is expected to take one to two days. If the well fails to flow significant fluid rates to surface in the first test phase, it is planned to introduce acid into the well bore to stimulate fluid flow by breaking down any plugged formation caused by the drilling operations.
According to Cooper Energy, this is a common practice in production testing fractured carbonate reservoirs. After flowing, the well is “shut-in” and the reservoir pressure response determined. The ‘post-acidisation’ phase of the production test may take three to six days.
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