High-Pressure/High-Temperature Challenges

Topics: HP/HT

As I begin my term as reviewer for the High-Pressure/High-Temperature (HP/HT) Challenges feature in JPT, I look forward to reading the best work produced by our skilled and dedicated members and to following in the footsteps of the late Mike Payne, whose excellent work I know our readers and members appreciated. In my first feature, I elected to focus on selecting papers that offered a somewhat different theme than is often seen in the majority of papers presented at HP/HT conferences. Instead of selecting papers that were dedicated to material selection, I considered works that concentrated upon best practices and recently developed technologies that make operations in these difficult environments more efficient and far safer for crews and for the environment itself. The three papers I have chosen draw from a variety of locations (Malaysia, Vietnam, and the UAE) and illustrate methods of ensuring optimal cost savings and enhanced safety in HP/HT projects.

The first of these papers focuses on identification of pore-pressure uncertainties especially detrimental in HP/HT scenarios, requiring the appropriate contingencies in well planning, and offers an integrated approach to predict and weather these uncertainties. The second paper reviews best practices in managed-pressure-drilling systems for HP/HT wells, with respect to cost savings and increased drilling performance in the current low-oil-price scenario. The final paper discusses completion with expandable liner hangers in HP/HT environments, allowing the essential rotation and reciprocation during cementing while establishing an instantaneous seal at the liner lap after setting.

I hope that you enjoy these important papers that reflect our members’ innovation, dedication, and technical expertise.

This Month's Technical Papers

Integrated Approach for Overpressure Prediction in an HP/HT Well Offshore Malaysia

Application of MPD Technology for HP/HT Wells in Vietnam

First Expandable Liner-Hanger Installation in UAE in an HP/HT Well

Recommended additional reading

OTC 26663 Innovative Multitechnologies Collaboration for Ultra-HP/HT Offshore Fracturing Stimulation by Arya B. Christiawan, Schlumberger, et al.

IADC/SPE 178857 A Challenging HP/HT Operation Supported by Dynamic Real-Time Simulation, Forecasting, and 3D Visualization by Josef Nabavi, eDrilling, et al.

SPE/IADC 179184 MPD Application for Ultra-HP/HT Wellbore by Craig Starkey, Chevron, et al.

Robert Ziegler, SPE, is global director for well-control technology at Weatherford International. His career spans 30 years in the industry, mainly with Shell, Chevron, Petronas, and Cairn India. Ziegler’s achievements include involvement in the first deepwater application of preblowout-preventer riserless mudline pumping and the first application of a commercial deepwater dual-gradient system in the form of post-blowout-preventer controlled mud level. He also has overseen dozens of successful offshore managed-pressure-drilling jobs using rotating control devices for several operators on both jackup rigs and semisubmersible rigs as well as the commercial use of directional casing drilling offshore, with more than 100 sections drilled.

High-Pressure/High-Temperature Challenges

Robert Ziegler, SPE, Global Director, Well-Control Technology, Weatherford International

01 April 2017

Volume: 69 | Issue: 4


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