en.Wedoany.com Reported - Canadian oil and gas company Valeura Energy has completed a multi-well drilling campaign, successfully increasing oil production at an offshore field in Thailand. The company confirmed the completion of an eight-well drilling campaign at the Nong Yao field in Block G11/48, where it holds a 90% working interest. The drilling program included the company's first-ever multilateral development well, with one appraisal well encountering its target as expected, providing a basis for future development drilling at the Nong Yao A platform.
The remaining seven wells were drilled as horizontal development wells at the Nong Yao A and B platforms, all encountering their targets and now in production. One of these development wells, NYA-42ST1H, set a record for the longest horizontal section in the Gulf of Thailand, with a measured length of 4,960 meters. Due to this drilling campaign and simultaneous workover operations at the Nong Yao B and C platforms, total production from the Nong Yao field increased to approximately 10,500 barrels per day in the seven days ending June 16, 2026, compared to an average of 8,870 barrels per day in the seven days ending April 4, 2026.
Dr. Sean Guest, President and CEO of Valeura, stated that continuously accessing new reservoirs through ongoing drilling has once again boosted production at the Nong Yao field. He noted that during this campaign, the team demonstrated the potential for multilateral drilling in the Gulf of Thailand, which helps improve efficiency and lays the groundwork for broader deployment of this method across the asset portfolio. Regarding the first multilateral well, the company constructed a complex junction within the wellbore NYB-02ST1, sequentially drilling two independent horizontal production branches, each targeting different reservoir intervals, recorded as two separate development wells. The company stated this is the first time a multilateral well of such complexity has been attempted in Thailand. The two branch development sections are currently producing oil from two different targets while occupying only one slot on the wellhead platform.
The multilateral approach aligns with Valeura's goal of maximizing facility production potential. Given the multilateral drilling potential within the asset portfolio, the company is evaluating future drilling plans to identify suitable candidates across its other fields in the Gulf of Thailand. These candidates may be wells suitable for two or more independent branch production sections. Valeura's contracted rig has now been mobilized to the Jasmine field in Block B5/27, where a five-well drilling program is planned, including three single-lateral development wells and one dual-lateral multilateral development well. The Mist jack-up drilling rig, built in 2013 by Borr Drilling, has been leased to Valeura through August 2026.
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