On 15 July 2018, Mubadala Petroleum plugged and abandoned wildcat Ban Yen SW-1 in the B05/27 concession, located in the Pattani Trough (Gulf of Thailand Basin), as a dry hole. The well was drilled using âEnsco 115â J/U to a total depth (TD) of 1,960 m, presumably to test the Sequence II fluvio-deltaic sandstones, main reservoir in the Ban Yen field.  Spudded on 10 July 2018, the shallow water well is located approximately 7 km southwest of the producing area in Ban Yen field.   The previous exploratory well drilled within the Ban Yen field was Karaket 1 (Karakate-1). The wildcat was abandoned as dry on 6 December 2015 at a TD of 2,834 m. Karaket 1 was the second well in Mubadalaâs drilling campaign in 2015, following Lilawadi 1 in the G03/48 concession.    The last development drilling program was conducted in July 2017. Two successful wells, Ban Yen A-32 and Ban Yen A-34H were directionally drilled at TDs of 2,924 and 3,028, respectively. The field is currently producing from 11 wells.  Mubadala holds the operatorship and is the sole right holder in the B5/27 concession. The concession holds two oil producing fields, Jasmine and Ban Yen. These two fields produced approximately 11,830Â b/d of oil in mid-2018. The estimated recoverable reserves (2P) for Ban Yen field is around 16 MMbo.  Background Information  The Ban Yen field was discovered by Ban Yen 2A in water depth of 60 m, in May 2006. The discovery was successfully appraised by Ban Yen 3A and Ban Yen 3C in 2008. The field was brought onstream in late August 2008, at an initial rate of 1,050 bo/d via a single well. A second well was subsequently brought onstream at an initial rate of 2,000 bo/d.Â  Production from Ban Yen (and Jasmine) is via a subsea pipeline connected to the MV Jasmine Venture FPSO.  The original 15,151 sq km of B05/27 concession was officially awarded to PTTEP on 1 January 1983. In November 1990, British Gas (BG) farmed-in and acquired 50% operating interests of the concession. In July 1997, PTTEP retrieved its operatorship under a reduced exploration area (49.9% from the awarded area). The exploration area has further reduced to 25.2% from the original acreage in August 1997.  The operatorship of the concession was transferred to Harrods in 1998 when the company farmed-in 50% interest, which was gradually increased to 62.5% (1999) and 100% in 2001. The sole right holder was granted a 40 sq km of producing license in September 2002. Harrods discovered oil in B5/27 3 and drilled 16 outpost wells prior to selling its three assets in Thailand to Pearl Oil in January 2004.   In March 2007, Pearl was granted a production block for the B5/27 and has been continuously developing the concession since then.
Ban Yen SW-1 (Mubadala Petr 100%) in the B05/27 concession, located in the Pattani Trough. P&A, dry hole