Offshore staff
MELBOURNE, Australia – The COSL jackup HYSY 937 has spudded the Paus Biru-1 exploration well in the Sampang PSC, offshore Indonesia.
Earlier today the conductor has been installed to a depth of 105 m (344 ft) and drilling of the 26-in. hole was due to get under way soon. Water depth at the location is 30 m (98.4 ft).
Ophir Energy subsidiary Santos (Sampang) operates the well, which should take two weeks to reach a TD of 650 m (2,132 ft) TVDSS.
According to partner Cue Energy, the main objective is to test the early Pliocene Mundu Globigerina limestone reservoirs in the Paus Biru structure, defined by 3D seismic as a four-way dip closure with direct hydrocarbon indications.
The Mundu formation is a proven producing reservoir in the Oyong and Wortel fields to the west and Maleo and Peluang fields to the east.
A secondary objective is the overlying siltstones within the Paciran formation, which again have proven to be productive in Oyong.
Logging data will be acquired to optimize development studies. Evaluation of the two reservoirs will initially employ LWD tools while the sections are drilled.
Further assessment could follow with wireline formation evaluation tools, including pressure testing and fluid sampling. And if there is a significant discovery, there could be up to two cased hole drillstem tests.
The well will be P&A’d post-completion: if successful, a horizontal production well will be drilled at a later stage.
10/19/2018
