PT Pertamina Hulu Rokan (PHR), a subsidiary of State-owned energy company Pertamina, continues to strive to increase its oil and gas production after the transfer of Rokan Block management, one of which is through exploration activities that have succeeded in providing additional significant oil and gas resources and reserves from the oil block.
PHR Vice President of Upstream Business, Andre Wijanarko, said PHR is committed to conducting massive and aggressive exploration work which includes 11 exploration wells, 1,000 km2 of 3D seismic and 5 geological and geophysical (G&G) studies.
“In the first 3 years since the transfer of management, PHR has drilled 7 exploration wells, where the first exploration well, the Sidingin North-1, having managed to book additional contingent resources with an in-place figure of 31.5 million barrels of oil,” Andre said in a statement on Monday, July 1, 2024.
He added that there are two unconventional oil and gas exploration wells (MNK) namely Gulamo and Kelok DET, which are the deepest wells in the central Sumatra region which are operationally successful and are expected to provide additional resources after operational and evaluation activities are completed.
“The drilling operations of four other exploration wells are conventional oil and gas, namely Pinang East, Mibasa, Sihangat and Astrea are still ongoing and even at this stage have shown positive results and are waiting for the layer content test and proceed to the production stage,” he said.
“Rokan exploration drilling actually began last year (2023) and the results of the content test in the form of 300 BOPD oil flow in the new tight sand layer of the Sidingin North-1 well, are currently in the process of determining the exploration status along with the Pinang East-1 well,” he added.
Head of the Upstream Oil and Gas Regulatory Task Force (SKK) for Northern Sumatra region, Rikky Rahmat Firdaus, said that another part of the approved PHR Firm Work Commitment is the exploitation program through the approved Enhanced Oil Recovery (EOR) technology.
“We hope that the EOR program can complete the completion of the CTF commitment, so that it becomes an important milestone to increase PHR production in Rokan Block for the national target of 1 million barrels per day by 2030,” Rikky said.
Not only positive performance in drilling exploration wells, PHR is also actively conducting subsurface geological and geophysical evaluations to identify potentials that have been missed, especially the potential for shallow targets or Low Quality Reservoir (LQR). With the use of new concepts and technologies, additional in-place resources of 70 million barrels of recoverable resource oil or 320 million in-place resources were booked through the discovery of the Mindal Gold structure.
