Publications

South Natuna Sea Block B PSC (Block B PSC) is one of the key player in Indonesia for supplying gas demand to Singapore and Malaysia. After its acquisition in 2016 by Medco Group, the field is expected to have sustainable gas supply for another 8 years. Hence, to support the plan, aggressive drilling and well service campaigns are enforced to meet the production goal. On mature field, Well Service activity is taking an important role in arresting production decline and in adding short marginal production gain from time to time. With typical well on Block B PSC has multi-zone reservoir, the opportunity to increase production rate is available by accessing the unexploited zone, which some are located above the current Production Packer. The challenge is on how to drain these marginal unexploited zones while maintaining low operational cost. Another challenge is Natuna field has unique characterization compared to other field, not only in terms of geographical condition, but also the way the wells are located on unmanned, minimum facility offshore Platforms. This provide another challenge for the modus operandi of Well Service in Block B PSC fields. The paper describes the challenges and learning curve that Medco E&P Offshore has to address by applying cement packer operation to gain well production, the benefit it has compared with other method, and why cement packer is the chosen method by looking from cost optimization, operational limits and technical limits.