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Metal Expandable Annular Sealing Systems for High Pressure Open Hole Zonal Isolation and Stimulation

Authors
Yosafat Esquitin (Welltec Inc) | Brian Schwanitz (Welltec Inc) | Guido Moreno (Equion Energía) | Natalia Avella (Equion Energía) | Oscar Henao (Equion Energía)
DOI
https://doi.org/10.2118/196227-MS
Document ID
SPE-196227-MS
Publisher
Society of Petroleum Engineers
Source
SPE Annual Technical Conference and Exhibition, 30 September - 2 October, Calgary, Alberta, Canada
Publication Date
2019
Document Type
Conference Paper
Language
English
ISBN
978-1-61399-663-8
Copyright
2019. Society of Petroleum Engineers
Keywords
High Pressure, Isolation, Stimulation, Packer, Increased Production
Downloads
20 in the last 30 days
244 since 2007
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SPE Member Price: USD 9.50
SPE Non-Member Price: USD 28.00
Abstract

Metal expandable annular sealing systems were used in a 4 ½" completion as an effective high-pressure isolation method inside 6" open hole mudstone formation in the Foothills Basin of Colombia. Effective isolation proved to be historically difficult to achieve.

The operator was approached with a solid metal expandable sealing system with rotation capabilities as an annular barrier for a preferred cementless completion. The sealing system needed to be assembled on a full-bore liner able to deliver robust deployment with a high-pressure seal in a worse case washed-out scenario. The deployment of the system consisted of one annular barrier placed above and one annular barrier placed below the mudstone zone.

Following careful job planning with the operator, the rotationally capable completion was deployed without any incidents. To achieve pressure integrity to set the metal expandable annular barriers, a ball seat sealing system was incorporated to allow the system to be closed and the annular barriers to be set.

After putting the well onto the pipeline, the client recorded a 52% increase in their expected produc-tion from previous wells. Successful results were accomplished as effective isolation was achieved and enhanced production was obtained because of the effective stimulation. This paper overviews the appli-cation, design, implementation and results of the use of new metal annular sealing systems in a 4 ½" completion as an effective high-pressure isolation method inside a 6" open hole, drilled in fractured sandstone and mudstone formations.

File Size  1 MBNumber of Pages   14

Hazel P.; Singh; H.; Bärdsen J.; Vasques R.; Pearcy; R.; Hannah; N.; Open Hole Sealing System Provide Zonal Isolation for High Pressure Acid Stimulation within a Chalk Reservoir. Paper SPE 166391 presented at the Annual Technical Conference and Exhibition, New Orleans, Louisiana, 30 September-2 October 2013

Hans Plessing; Michael Macdonald Arnskov; A novel well annular sealing system solution alternative to swellable casing Sealing system. Paper SPE-145931 presented at Asia Pacific Oil and Gas Conference and Exhibition held in Jakarta, Indone-sia, 20-22 September 2011.

Pedro Maciel; Ricardo Vasques; A novel metal expandable well annular sealing system for high delta pressure cementless open hole completions. Paper IBP2255_14 presented at the Rio Oil & Gas Expo and Conference, held between September 15-18, 2014

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