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
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, Global Director, Well-Control Technology, Weatherford International
01 April 2017
Cost-Effective Validation of HP/HT Subsea Equipment Using Seawater Hydrostatic Head
The complete paper presents a practical approach for validating design-verification analysis for subsea equipment, using a representative pressure valve block to correlate finite-element analysis (FEA) predictions for strain changes with actual measured changes.
Expandable HP/HT Liner Hanger Increases Pressure Integrity
This paper describes a high-pressure/high-temperature (HP/HT) expandable liner hanger product that offers metal-to-metal and elastomer sealing capabilities at the liner top in the host casing.
High Pressure/High Temperature
One would think that, in these challenging times, high-pressure/high-temperature technology and projects would be put on the back burner, with everybody chasing zipper-fractured barrels from shale. Well, it is not so.
No editorial available
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26 May 2020
20 May 2020