Sukowati Field Achieves Emissions Reduction and Production Increase through CO2 Injection

• 23 Sep 2024
• mk.novian.kusmana

Bojonegoro – Pertamina EP Sukowati Field, part of Zona 11 in the Eastern Indonesia Region under Pertamina Upstream Subholding, has recorded significant progress in reducing greenhouse gas emissions while enhancing oil production. The success of the huff and puff phase, which serves as the precursor to the CO2 inter-well injection phase and full-scale CO2 injection, marks a pivotal step towards greener operations.

Zulfikar Akbar, General Manager of Zona 11, noted that the results of a study on Carbon Capture, Utilization, and Storage (CCUS) at the Sukowati Field revealed a positive response, with no damage to well integrity or the surrounding rock formations. "The operational development of the CCUS project has proven to be successful, not only in boosting production but also optimizing reserve output. This is a particularly encouraging outcome as we strive to meet government-set production targets while simultaneously reducing greenhouse gas emissions," Zulfikar said.

CCUS technology is a key tool in reducing greenhouse gas emissions and mitigating global warming, supporting the international agenda outlined in the Paris Agreement under the United Nations Framework Convention on Climate Change (UNFCCC). Indonesia, a signatory to the UNFCCC, is committed to achieving Net Zero Emissions (NZE) by 2060 and advancing an energy transition that prioritizes sustainability.

One of the advantages of CO2 injection is its ability to boost oil production while reducing emissions. Following the success of CO2 injection in the Jatibarang Field, the Sukowati Field, located in Bojonegoro, East Java, is playing a critical role in Pertamina’s roadmap towards Indonesia’s NZE target.

The Huff & Puff method of CO2 injection at Sukowati Field provides essential validation for Enhanced Oil Recovery (EOR) technology. This method allows Pertamina to analyze the effects of CO2-EOR and CO2 storage in subsurface formations, with the goal of applying these findings to other Pertamina-operated fields. This initiative supports the national production target of 1 million barrels of oil per day (BOPD) by 2030.

Zulfikar expressed hope that the CCUS project at Sukowati Field, scheduled for completion by 2033, would serve as a model for similar projects across other Pertamina-operated fields. A total of 600 tons of CO2, or approximately 9 MMSCF, was injected into the Sukowati-18 (SKW-18) well over a five-day period.
Once fully operational, CCUS at Sukowati Field is expected to absorb CO2 not only from the Sukowati Field itself but also from the nearby Jambaran Tiung Biru Field. “We are optimistic that the entire process will proceed smoothly, allowing for proper evaluation and further implementation on a full scale,” Zulfikar added.

The CCUS project at Sukowati Field is the result of a collaborative effort between Pertamina, the Japan Organization for Metals and Energy Security (JOGMEC), and Japan Petroleum Exploration Company Limited (JAPEX). This initiative follows a Joint Study Agreement signed by the parties in July 2023.

About Pertamina’s East Indonesia Regional Subholding Upstream
The East Indonesia Regional Subholding Upstream of Pertamina manages upstream oil and gas operations across East Java, Sulawesi, the Maluku Islands, and Papua, including both offshore and onshore assets. The region encompasses Zona 11 (Alas Dara Kemuning, Cepu, WMO, Randugunting, Sukowati, Poleng, Tuban in East Java), Zona 12 (Jambaran Tiung Biru, Banyu Urip), Zone 13 (Donggi Matindok, Senoro Toili, Makasar Strait), and Zona 14 (Papua, Salawati, Kepala Burung, Babar Selaru, Semai).
 

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