LONDON – Hoang Long Joint Operating Co. has completed a well intervention and development drilling campaign on the TGT field offshore southern Vietnam.
The fourth well in the program has come onstream at an initial rate of 2,200 b/d of oil, lifting the combined flow from the four new development wells to 8,800 b/d, above expectations. And the final cost of the drilling program was around $20 million below budget.
Earlier this year, well interventions and gas lift optimization delivered an initial production gain of 3,200 b/d. The work included additional perforations on six wells, water shut-off on four wells, and demulsifier injection on eight wells.
Yesterday’s gross production rate of 14,800 boe/d would have been around 19,800 boe/d if one of the two compressors on the FPSO had not been shut down earlier this week. This action was necessary to prevent potential damage arising from excessive temperature and vibration, according to partner Pharos Energy.
The compressor will need to be airfreighted to the manufacturer in the US for inspection and repairs, but should be back in service by end of January 2022.
Overall, the results from the campaign support additional opportunities, Pharos added, as stated in the full field development plan (including nine contingent wells), which could justify a request to extend the license to December 2031.
In addition, the joint venture management committee approved two additional TGT wells and 13 well interventions (10 perforations and three water shut-offs) for next year’s budget, with the two new wells likely to be drilled next summer.