Marbun B T H, Sinaga S Z, Purbantanu B, Santoso D, Kadir W G A, Sule R, Prasetyo D E, Prabowo H, Susilo D, Firmansyah F R, Palilu J M, Saprudin W, Andhika B
Bandung Institute of Technology (ITB), Indonesia Center of Excellence for CCS and CCUS, Indonesia.
Pertamina Exploration and Production, Indonesia.
Heliyon. 2023 Jul 29;9(8):e18505. doi: 10.1016/j.heliyon.2023.e18505. eCollection 2023 Aug.
The risk of CO leakage from carbon capture, utilization, and storage (CCUS) wells and geological storage sites must be properly assessed before the implementation of CO injection. According to ISO 27914 and ISO/FDIS 27916, the design and construction of an injection well needs to guarantee safety and ability to contain the stored CO over a long-term period. However, these standards alone were inadequate to evaluate the well integrity due to the need to specify criteria, duration of measurement, and range of measurement parameters of the available tools according to industries' best practices. The methodology used in the study adapted applicable and readily-available international standards, field experiences, and lessons learned that could be used to support the construction of new and/or the conversion of existing oil and gas wells into CO injection wells. This study focused on Jepon-1 in Gundih field, Indonesia, an abandoned oil and gas well. Its actual conditions, well integrity, capabilities of the equipment used in the workover and logging operations, and its limitations in checking the conditions of various crucial aspects of integrity, were evaluated. The results showed that the application of the international standards could not fulfill all the detailed requirements of integrity evaluation of the JPN-1 well due to its particular condition and situation. Other field experiences needed to be adapted, improved, and incorporated in the integrity evaluation of this well. Additionally, longer duration of measurement and more accurate and sensitive logging evaluation tools, combined with temperature logging tools, are required to detect leakage that could not be identified by the commercial tools used in this well. The result of this well integrity study will be used as a fundamental basis for constructing CCUS well regulations by the Government and stakeholders.
在实施二氧化碳注入之前，必须对碳捕获、利用与封存（CCUS）井及地质封存场地的二氧化碳泄漏风险进行恰当评估。根据ISO 27914和ISO/FDIS 27916，注入井的设计与建造需要确保长期安全并具备封存所注入二氧化碳的能力。然而，仅靠这些标准不足以评估井的完整性，因为需要根据行业最佳实践来明确现有工具的标准、测量持续时间及测量参数范围。该研究采用的方法借鉴了适用且易于获取的国际标准、现场经验及吸取的教训，可用于支持新建和/或将现有油气井改造为二氧化碳注入井。本研究聚焦于印度尼西亚贡迪赫气田的Jepon - 1井，这是一口废弃的油气井。对其实际状况、井的完整性、修井及测井作业中所用设备的能力，以及在检查完整性各个关键方面状况时的局限性进行了评估。结果表明，由于JPN - 1井的特殊状况，国际标准的应用无法满足该井完整性评估的所有详细要求。需要采用、改进并纳入其他现场经验用于该井的完整性评估。此外，需要更长的测量持续时间以及更精确、灵敏的测井评估工具，并结合温度测井工具，以检测该井所使用的商业工具无法识别的泄漏情况。该井完整性研究的结果将作为政府和利益相关者制定CCUS井法规的基本依据。
