document: According to local media reports in early December 2019, Pertamina EP has conducted three drill stem test (DST) in wildcat Tulip Jingga 1 (TJA-1), in the Sungai Gelam area of the Muaro Jambi Regency, located in the Jambi PPC (South Sumatra Basin). The first and second DST recorded oil shows while the third DST reportedly had gas and condensate flow. The company is currently carrying out test evaluations to determine the reservoir potential.  TJA-1 was spudded on 12 September 2019 using PDSIâs rig # 41.3 and was targeting a depth of around 2,230 m MD. Purpose of the well is to add new reserves and potentially increase future production from the block. Well operations have been estimated to take around 118 days (likely including testing), with expected completion in late December 2019. Reportedly the potential reserves are estimated to be 11.83 MMboe.  The last exploration well drilled in the block was Puspa 3 in early 2017. The well was drilled to a TD of approximately 3,120 m, with at least five DSTs conducted. The well was plugged and abandoned after encountering gas shows.  Exploration in the area has focused on shallower sandstones of the Miocene Air Benakat Formation and deeper Talang Akar Formation sandstones along with fractured, weathered Pre-Tertiary igneous basement and granite wash sediments. Good reservoir quality has been observed in the sands locally, but areal extent is limited. Structural plays seem the most common play, with carbonate build-ups and stratigraphic traps seen as minor.  As of September 2019, the PPC oil production was reported to be around 2,830 bo/d. The cumulative volume is from 11 fields, namely Kenali Asam, Bajubang, Tempino, Sungai Gelam, Ketaling Barat, Ketaling Timur, Setiti, Bungin Batu, Panerokan and Simpang Tuan.  Pertamina operates the Jambi PPC with 100% interest.  Background Information  A 550 sq km 3D survey covering the Puspa area was conducted wherein a discovery was made in late 2009. This survey was done by Elnusa and the advance party for the survey started in late April 2011 while data recording was from early July 2011 to mid-June 2012.  The Puspa 1 (Puspa A) wildcat was suspended in early December 2009 with the well test yielded 31 MMcfg/d plus 630 bc/d but the test intervals were not released. The well, located 13 km northeast of the Sungai Gelam A oil and gas field, was spudded on 14 May 2009 using National's "80 B" rig and it was drilled to a TD of 2,876 m, slightly deeper than the PTD of 2,850 m. It targeted sandstones of the Upper Oligocene to Lower Miocene Talang Akar Formation.  PT Pertamina EP temporarily suspended the Puspa 2 appraisal well in late May 2015. IHS understands that Puspa 2 was a successful oil and gas appraisal well. Testing operations commenced in early February 2015 after the well reached a total depth of 2,985 m. Puspa 2, situated north of Puspa 1 wildcat, was spudded on 25 November 2014. It had a PTD of 3,000 m, primarily targeting Upper Oligocene to Lower Miocene Talang Akar sandstones. The pre-Tertiary basement could have been a secondary target.
summary: Pertamina EP has conducted three drill stem test (DST) in wildcat Tulip Jingga 1 (TJA-1), in the Sungai Gelam area of the Muaro Jambi Regency, located in the Jambi PPC (South Sumatra Basin). The first and second DST recorded oil shows while the third DST reportedly had gas and condensate flow. The company is currently carrying out test evaluations to determine the reservoir potential.