Mubadala Petroleum plugged and abandoned the first well under the G01/48 exploration drilling campaign, Inthanin 1, located in the Kra Sub-basin, Gulf of Thailand, on or around 27 November 2019, as dry well. The well, located 3.7 km south-southwest of the Manora platform, was targeting the 400, 500 and 600 sands series. The targeted intervals were intersected within 15 m of the prognosed depths, however there was no indication of hydrocarbon charge. Additionally, the deeper units, 500 and 600 sand series, were found to be poorly developed.  Spudded on 20 November 2019, Inthanin 1 well reached its total depth (TD) of 2,528 m on 24 November 2019. The drilling completion was ahead of schedule and below budget. The drilling rig, Valaris 115 J/U (formerly Ensco 115) has been mobilized from the Inthanin 1 well location to the next prospect location which is located around 6 km southeast of Manora platform.   The intentionally deviated well, Yothaka East 1, is expected to be drilled on 29 November 2019, aiming to test the 490 and 500 sands series in a fault independent closure and the 600 sand series in a three-way dip closure. Krissana 1, a sidetrack well from the Yothaka East surface location, is designed to test the 300, 400, 500 and 600 sands series in a three-way dip closure. Development of these two fields cluster would require a new wellhead platform, to be tied-back to the processing and storage facilities in the Manora field.  The prospects are located to the south and east of the Manora East fault and adjacent to major source kitchen. A contingent appraisal well, Yothaka East 2, will be drilled upon significant hydrocarbon indications in the Yothaka East 1 and Krissana 1 wells.  The total cost for these three wells is estimated at USD 5.5 million gross, for dry hole cases. Priority is given to the prospects that are low cost to drill, quick to be developed, reachable from the existing platform and able to extend field life for several years. Another high graded prospect within the North Kra block, namely Manora DEFVX, is planned to be drilled in 2020.  The G01/48 concession is operated by Mubadala Petroleum with 60% interests through its subsidiary MP G1 (Thailand) Limited, partnered with Tap Oil (30%) and Northern Gulf Petroleum Pte Ltd (10%).   The previous exploration well, Manora 8 ST1, had successfully appraised the oil zones along the Manora East bounding fault, on 4 June 2018. Located 2.2 km southwest of the Manora A platform, the well encountered a total net oil pay of around 93 m (based on logs interpretation) from the primary objective of the 490-60 Series sands, as well as new pools in the secondary objectives, 300 and 500 Series sands, plus minor pay in the 400 Series sands. The well result has contributed additional volumes of 1.1 and 1.9 MMbbl to the 1P and 2P reserves within the Manora field, respectively.  The result of the original borehole Manora-8, however, was below expectations with small contingent oil resources encountered probably in the primary objective of 600 series sands, which are primary producing sands in the Manora field. The Manora-8 and its sidetrack were targeting a three-way dip closure of the âManora footwall Aâ prospect in the upthrown side west of the Manora Central block.   Background Information  The G01/48 concession was officially awarded to Occidental Exploration Pte Ltd (50%, operator) and partner Syarikat Borcos Shipping Sdn Bhd (50%) in December 2006. In 2007, Occidental was renamed to Northern Gulf Petroleum (NGP) Pte Ltd. Subsequently, Pearl Oil (later acquired by Mubadala Petroleum) acquired the entire 50% stake of Syarikat Borcos plus an additional 10% and operatorship from NGP.   In October 2010, Tap Oil acquired an indirect 30% interest in the block via the acquisition of a 75% share of NGP. In 2012, Tapâs indirect interest was converted into direct interest through transfer to subsidiary Tap Energy (Thailand) Pty Ltd. NGP retained the remaining 10% direct interest. Tap Oil elected to retain its stakes in the block after the completion of a full asset review conducted in 1H 2015.   From 2009 until 2016, six newfield-wildcats were drilled within the G01/48 concession, with three oil discoveries in Manora (2009), Malida 1 (2013) and Sri Trang 1 (2016).  The Manora oil field was discovered via Manora 1 wildcat in December 2009. The discovery was appraised by six oil wells and one dry well. Hydrocarbon discovery from Malida 1 enhances exploration potential between the new discovery and Manora field. A net pay of 9.5 m oil-bleed sandstone reservoir in the primary target between 2,396 to 2,412 m.  The last new-field wildcat in the G01/48 concession was drilled at the northern of the block, in late 2017. Ladawan-1 well was drilled to a total depth of 2,175 m TVDss, after having encountered an interpreted 3.3 m oil column at the 500 Sand Series. The well result is considered non-commercially viable and no well test has been carried out.
Inthanin 1 (Mubadala 60% op, Tap Egy 30%, N.Gulf Petr. 10%) in G01/48 block, 1st of 3 explo wells planned in Manora oilfield area, P&A dry (TBC), targeted 400, 500 + 600 series sands were intersected, no significant shows were encountered while drilling and evaluation of log data indicated no zones of interest in the well. TD=2528m