Technology Focus: High-Pressure/High-Temperature Challenges (April 2012)
- Mike Payne (BP Exploration and Production Technology)
- Document ID
- Society of Petroleum Engineers
- Journal of Petroleum Technology
- Publication Date
- April 2012
- Document Type
- Journal Paper
- 120 - 120
- 2012. Copyright is retained by the author. This document is distributed by SPE with the permission of the author. Contact the author for permission to use material from this document.
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Step Changes Ongoing in the High-Pressure/High-Temperature World
Exciting operations are ongoing on the shallow-water US offshore continental shelf (OCS) that will influence the entire high-pressure/high-temperature (HP/HT) community going forward. McMoran and their operating partners are actively drilling, evaluating, testing, and bringing to production several deep HP/HT plays. These prospects are named in the Treasure Island theme with identities such as Davy Jones, Blackbeard, and Lafitte. The Davy Jones 1 is in the completion phase, incorporating multiple Eocene Wilcox sands, and it represents the first 25,000-psi completion of its kind in the world. The Davy Jones 2 encountered confirmed pay and is progressing well. The original Blackbeard well was taken to 32,997-ft total depth, and operations on Blackbeard East have been permitted to 34,000 ft. As with Davy Jones, these wells represent substantial extensions to or step changes in current HP/HT technologies.
To address the substantial engineering challenges associated with these wells, the operator formed a significant project team and is drawing on the expertise of several vendors in a collaborative manner to make the many advances necessary in HP/HT drilling and completion procedures and in production equipment and procedures. Downhole tools have been upgraded to 30,000 psi and 500°F. It will take considerable effort to catalog all of the “industry firsts” and “Serial-Number 1s” associated with these ongoing operations. Both Davy Jones wells are expected to be flow tested and put on production later this year.
HP/HT continues to be of international interest, with global operations ongoing from the North Sea, to Latin America, to the Middle East, and of course in the “ring-of-fire” regions in Southeast Asia. Operators, service companies, equipment suppliers, drilling contractors, and other involved parties share a common goal of addressing the many HP/HT challenges successfully and in a safe and efficient manner. These goals create a need to exchange information effectively, openly share lessons learned, and embrace a collaborative spirit that respects the competitive nature of business while valuing the shared interest that we all have in safe and reliable operations. Thus, the industry looks forward to learning more from the success of these HP/HT step changes in the US OCS ventures and from advances in other HP/HT operations around the globe.
Recommended additional reading at OnePetro: www.onepetro.org.
IPTC 15175 Deep Workover Challenges of an HP/HT Sour-Gas Well—Case History of Mutriba 12 by M.J. Al-Saeedi, SPE, Kuwait Oil Company, et al.
SPE 142772 The Acorn Discovery: An Innovative Appraisal of an Offshore, Low-Deliverability, HP/HT Reservoir by P. Wood, Centrica Energy, et al.
SPE 148433 Feasibility Study of Casing-Drilling Application in HP/HT Environments: A Review of Challenges, Benefits, and Limitations by Amr Radwan, SPE, Cairo University, et al.
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