RNS: Drilling update11 Jan 2022 07:19
Drilling Operations
Following the end of Q4, in early January 2022, well JKT-01Z reached TD at 2,565m MD. Considerable mud losses were encountered during drilling, suggesting the well has intersected multiple open fractures. Completion operations are now underway and will be followed by clean-up operations to unload the mud losses, ahead of the well being put on test.
JKT-01Z is the second well in the current two-well drilling programme. To support effective management of costs and minimise drilling time, whilst maintaining the same exposure to an oil-in-place of approximately 8 MMbbls, the well has been drilled via a sidetrack from a vertical well drilled in 2011 by a previous operator.
Located in Block XIB, JKT-01Z is close to and targets the same area of the Middle Eocene reservoir as KRT-39, which has been a sustained producer of oil and gas for over 20 years. Unlike KRT-39, JKT-01Z has been drilled as a horizontal well, to maximise the chance of intersecting fractures.
The trajectory and horizontal nature of JKT-01Z benefitted from data gathered from the drilling of previous wells, which enabled a recalibration of the high-quality 3D-seismic data acquired in 2019. The well has also benefitted from refinement of our geomechanics model and horizontal drilling practices.
Additionally, JKT-01Z has been tied into the recently installed gas infrastructure at KRT-39, which will enable the rapid monetisation of the gas production from JKT-01Z.