- Title
- Enhanced multizone single-trip sand-control system successfully treats six zones in offshore Indonesia well
- Creator
- Zhou, Leon; Gunawan, Indra; Jannise, Ricki; Suire, Casey; Eiman, Tyson
- Date
- 2014
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/161032
- Identifier
- vital:12335
- Identifier
-
https://doi.org/10.4043/24879-MS
- Abstract
- Although multiple-zone, downhole sand-control tool systems have been in use since the early 1990s, these systems had been designed for jobs that only required low-pump-rates with low-pressure differentials. Multiple-zone systems capable of high fracturing pump rates and the associated differentials only recently have been introduced to the oilfield. Although these jobs are becoming more common, most of the completions have been limited to four or five treated zones. This paper presents a case history from Indonesia in which six discrete zones in an offshore deployment were treated successfully in a single trip. The challenges for this completion were numerous. Manufacturing lead time was very short, and the system would have to be adapted to the unique requirements of the completion design and the use of new components. Since the proppant and pump rating for these systems was based on five zones, rigorous analysis was necessary to ensure that a high pump rate, high differential pressure-rated single-trip, multiple-zone sand-control tool system was capable of treating six zones and that the crossover tool would survive the erosive effects of these extreme conditions. To provide assurance of the elastomeric seal integrity of the service tool, a testing program was executed for treatments to provide tracking and verification of conditions. Procedures were prepared, and equipment was retained on hand to replace the service tools, if any leaks were evident. Since system installation experience was limited in this area, gathering sufficient knowledge and experience for system deployment had to be addressed quickly. This would require sharing of lessons learned, use of experienced personnel from previous installations, and conducting of detailed training discussions between subject matter experts and service personnel. Deployment challenges and solutions, successes experienced at the well site, and the actual performance of the operations are discussed in this paper.
- Publisher
- Society of Petroleum Engineers
- Relation
- Offshore Technology Conference Asia: Meeting the Challenges for Asia's Growth, OTC ASIA 2014 p. 1799-1808
- Rights
- © Copyright 2014, Offshore Technology Conference.
- Rights
- This metadata is freely available under a CCO license
- Full Text
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|---|---|---|---|---|---|---|---|
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