IADC/SPE Managed Pressure Drilling & Underbalanced Operations 2026 Conference & Exhibition

07.30 Conference Registration, Coffee Service, Poster Session & Open Exhibition

08.30 Welcome, Introduction & Safety Briefing: Matt Kvalo P.E., Chair, IADC UBO/MPD Committee; Vice President of Engineering & Technology, Stasis Drilling Solutions

08.35 Keynote Presentation: TBN

9.00 Panel: Middle East Focus
Moderators: Matt Kvalo P.E., Vice President of Engineering & Technology, Stasis Drilling Solutions & Martin Culen, Chief Commercial Officer, Kelda Dynamics

Although MPD and UBO techniques have been used for decades in the Middle East region, challenges confronted and successes achieved have not generally been shared on the global stage. This session will provide an update on MPD and UBO activities in the region, highlighting some of the unique challenges faced by Operators, Drillers and Service Companies.

• Aqeel Shakhouri, DTD MPD SME, Saudi Aramco (SPE 233718)
• Ahmad Atef Hashmi, Lead Engineer Drilling & Workover, Saudi Aramco (SPE 233736)
• Muhammad Moawwaz UlHaque, MPD Engineering Manager – MENA, Weatherford (SPE 233719)
• Saeid Rashidi, MPD Engineer, Technical Support Group, Kuwait Oil Company

10.00 Networking Break, Poster Session & Open Exhibition

10.30 MPD Systems: From Digital Innovation to Proven Performance & Reliability
Session Chair: Jonathan Thain, MPD Manager, Transocean

A Field-Validated Test Framework for Performance and Stability Evaluation of MPD Choke Pressure Control Systems: Tarek El-Algroudi, Control System Specialist, Glenn-Ole Kaasa, Kelda Dynamics, Jonathan Thain, Transocean (SPE 233720)
This presentation introduces a field-validated testing methodology for MPD choke control systems, addressing the critical need for rigorous performance evaluation and concrete stability verification. Historically, dynamic stability is rarely evaluated prior to deployment because standard environments lack field-validated acoustic dynamics. Built upon a high-fidelity model calibrated against offshore data, this framework accurately simulates complex wellbore transients and resonances. By subjecting control software to rigorous operational scenarios, the methodology generates standardized metrics for tracking accuracy, disturbance rejection, actuator wear, and robust stability margins. This enables operators to objectively verify software performance and safety while reducing costly rig-based tuning.

Enhancing MPD Performance Through BOP Reliability Engineering and Real-Time Condition Monitoring: Jose Meraz, President, Amine Meziou, Eric Fritts, Adams Braly, Aquila Engineering (SPE 233737)
Managed Pressure Drilling (MPD) operations involve significant economic exposure, where non-productive time events and equipment-related disruptions can escalate rapidly. While MPD performance is often viewed through the lens of control systems and hydraulics, reliability limitations within critical barrier equipment — particularly the Blowout Preventer (BOP) — frequently play a decisive role. This presentation explores how reliability-centered strategies, including failure tracking, structured observations, fault tree analysis, and real-time dashboards with analytics, can enhance MPD reliability and reduce downtime risk. Practical implementation concepts are discussed to illustrate how real-time condition monitoring and reliability engineering methods may improve predictability, support early anomaly recognition, and strengthen operational confidence in high-consequence drilling environments.

Automation Without Isolation: Preserving Human Performance in Remote Drilling Operations: Matt Kvalo P.E., Vice President of Engineering & Technology, Sergio Cedano, Edward Laird, Martin Duarte, Antonio Torrealba P. Eng., Stasis Drilling Solutions (SPE 233733)
This presentation examines how Remote Support, Remote Monitoring, and Remote Operation models are applied in modern drilling and MPD operations, emphasizing the role of human factors in their success. It shows how cognitive workload, situational awareness, and decision-making shape performance as automation and distance increase. The discussion highlights the need to balance efficiency with adaptability through thoughtful system design, clear roles, and human-centered operational frameworks.

Integrated Managed Pressure Drilling within Rig Operating System: Clarke Brockman, MPD Engineering Manager, Robert Hilbig, Dianne Nguyen-Binz, Nabors, Mary Strack, Kelda Dynamics (SPE 233734)
This presentation will discuss the efficiencies gained and methods used for automating managed pressure drilling (MPD) inside of the rig operating system. The methods and sequences for various levels of MPD and the safety of operations will be covered.

11.50 Luncheon, Poster Session & Open Exhibition

13.20 An Integrated View of MPD Performance: Hardware Reliability, Transient Modeling, and Real-Time Measurement Innovations
Session Chairs: Billy Walker, Senior Director, MPD Sales, NOV Rig Technologies & Martyn Parker, Vice President MPD Services, Pruitt Tool and Supply

Evaluating Integrated Riser Joint Technology: Ivan Sales, MPD SME, André Fernandes, Gustavo Pena, Fabio Dairiki, Guilherme Vanni, Petrobras (SPE 233738)
Managed Pressure Drilling (MPD) has been extensively applied on floating rigs for the past 15 years. One of the key components that allows the application of MPD in deepwater scenarios is the Integrated Riser Joint (IRJ). This paper presents an evaluation of integrated riser joints performance regarding installation times, reliability and failures, focusing on their impact on time and cost. In addition, it proposes solutions for improvement of equipment reliability, reducing NPT, and enhancing overall MPD performance in floating drilling operations.

Transient Verification of Mud Gas Separator Capacity During Influx Circulation Using Coupled Multiphase Hydraulics and MPD Surface Backpressure Modeling: Pedro Cavalcanti de Sousa, Technology Development Engineer, Thiago Silva, Oscar Gabaldon, Blade Energy Partners (SPE 233739)
The study develops a transient workflow to assess MGS performance under realistic multiphase influx conditions, addressing limitations of steady state capacity ratings. It couples transient wellbore circulation modeling with mechanistic MGS capacity criteria to evaluate time dependent gas/liquid rates, pressure, temperature, and gas fraction throughout circulation. A simulation matrix examines the effects of SBP, pump rate, and gas solubility, showing tradeoffs between gas rate reduction and separation efficiency. The workflow enables SBP–pump rate operational envelopes that identify safe and exceedance regions, defining an optimal operational window for MPD applications.

Closing the Loop: A Novel Autonomous In-Line Rheometer for Real-Time ECD Management: Mauricio Santos, Senior Modelling Engineer, Marlon Moura, Jason Hannam, Helio Santos, SafeKick, Johnathan Dady, Seadrill (SPE 233721)
This paper presents a new autonomous rheometer system designed to eliminate human factors, ensuring the ECD is managed by objective, high-frequency machine-generated data rather than periodic manual inputs. Rather than just providing rheology data, the system is integrated with the hydraulic model ensuring improved accuracy in downhole pressure calculations. The system utilizes a compact rheometer unit installed on the process flow line, with an autonomous pumping system, allowing for precise shear rate control and on-demand gel strength measurements. The system is programmed to operate on a continuous and automated cycle, applying temperature compensation and signal conditioning to generate a rheogram every 5 minutes, which is sent directly to the hydraulic model. The paper presents the results obtained in the laboratory and testing set-up, confirming the sensor’s accuracy against standard rotational viscometer measurements. The paper also presents the results from a field installation on a deepwater drillship.

Enhanced Early Kick Detection with MPD Applications: New Sensors System for Precise Kick and Loss Detection Beyond Current Technologies Limitations: Andrea Manzoni, R&D Engineer, Alberto Martocchia, Charaf El Jaad, Marcel Dias Antunes, Geolog (SPE 233740)
This presentation introduces a field-validated, next-generation flow measurement system developed to enhance early kick and loss detection in Managed Pressure Drilling (MPD) operations. The system integrates a high-pressure Flow In sensor installed at the standpipe with a compact hybrid Flow Out meter positioned downstream of the MPD choke, enabling accurate real-time delta-flow monitoring across the well. Designed to operate under pressures up to 10,000 psi and background gas concentrations exceeding 40% as well as strong mud inhomogeneities, the system incorporates a novel workflow that distinguishes gas expansion effects from true downhole gain or loss events, improving both the accuracy and responsiveness, thereby enhancing operational safety and efficiency, and supporting more reliable identification of fractured zones.

14.40 Networking Break, Poster Session & Open Exhibition

15.10 The Future of Well Control: Where AI, Machine Learning, and Real-Time Intelligence Meet
Session Chairs: Aqeel Shakhouri, Well Control & MPD SME, Saudi Aramco & Greg Myers, Director – BOP and Drilling Technology, HMH

Subsurface Gas Expansion Analysis and Enhanced IME Visualization with Isobaric and Isovolumetric Lines: Icaro Ostan, R&D Engineer, Martin Culen, Geir Arne Evjen, Kelda Dynamics (SPE 233741)
This work introduces the use of constant downhole pressure curves within the influx management envelope to clarify which operating regions remain reachable after an influx. By redefining envelope boundaries and introducing pressure and volume margins, the method corrects common misinterpretations of operational regions. A relationship between pressure margins with the commonly known kick tolerance metric is also presented, as well as projected surface pressure and volume for an influx. The approach improves situational awareness and supports more reliable decision making during drilling operations.

Early Kick Detection Without Trade-Offs High Sensitivity Without False Alarms: Antonio Balanza, MPD Product Champion, Aldana Martinez, Andrew McLennan, Cody Butler, Halliburton (SPE 233722)
Early kick detection plays a critical role in Managed Pressure Drilling by linking continuous well monitoring with timely influx response. Despite advances in MPD technology, current detection systems rely on fixed sensitivity settings that force a tradeoff between early detection and false alarms, particularly during operational transitions. This presentation introduces an adaptive early kick detection approach that continuously adjusts to real-time operating conditions, isolating true well behavior from operational effects. By removing the sensitivity tradeoff, the approach improves detection reliability, increases confidence in influx management, and enables higher levels of automation in MPD operations.

Field Deployment of an Auto-Calibrated Virtual Trip Tank Featuring Real-Time AI-based Kick/Loss Detection for Enhanced MPD Well Control: Santiago Callerio, Graduate Research Assistant, Pradeep Ashok, Eric van Oort, The University of Texas at Austin, Matt Kvalo, Stasis Drilling Solutions (SPE 233723)
This presentation highlights the full-scale field deployment of a Virtual Trip Tank auto-calibration system integrated with real-time AI-based kick/loss detection. Attendees will see how delta-flow accuracy was improved, drift minimized, and event detection strengthened under live MPD conditions—demonstrating a practical, low computational cost solution that enhances dynamic well control and accelerates digital technology and AI adoption at the rig site.

16.10 MPD in Unconventional Plays
Session Chair: Oscar Gabaldon, Drilling Technologies Development Manager, Blade Energy Partners

Integrated Managed Pressure Drilling in Vaca Muerta: Enabling Simultaneous Operations and Enhanced Efficiency in Pad Drilling: Lucas Mandziuk, MPD Leader & Ezequiel Casado, MPD Engineer, Nabors (SPE 233728)
This presentation describes the application of integrated Managed Pressure Drilling (MPD) systems in Vaca Muerta as a unified operational approach supporting drilling, tripping, and well kill activities. Field experience shows how dynamic pressure management enables flexible selection of well kill strategies and improved tripping performance. Integration with rig systems allows safe simultaneous operations during pad drilling, including offline cementing and running in hole (RIH) on consecutive wells. The workflow reflects operational maturity developed through sustained field application, resulting in reduced inter-well transition time and improved pad efficiency, while defining operational limits and requirements for safe execution.

Challenging the Well Control Procedure Through the MPD Manifold Beyond Typical MPD Matrix Limits: Carlos Enrique Sanguinetti, DPM WH PSD Manager, Ahmed Rami Abuelaish, Freddy Rojas, SLB (SPE 233724)
A practice of continuing well control through the MPD manifold, with the BOP closed to isolate the RCD, is increasing in popularity as operators push beyond MPD limits. Despite growing demand, it remains insufficiently defined in industry-recommended practices, leaving uncertainties in operational considerations. This paper documents current practice and provides recommendations to improve procedural clarity and risk management, while challenging the perceived benefits of extending MPD beyond traditional limits.

Transitioning from Managed Pressure Drilling to Managed Pressure Wells: A Holistic Well Construction Philosophy in the Mexico Region: Carlos Cervantes, Transitioning from Managed Pressure Drilling to Managed Pressure Wells, Filiberto Reguero, Weatherford (SPE 233731)
The presentation includes operational examples and statistical data for each MPW application described, highlighting measurable performance across 106 wells in Mexico between 2020-2025. Real case studies demonstrate quantifiable benefits, including documented savings of up to 25 days and USD 1.8 million in an HPHT well in the Gulf of Mexico through optimized pressure testing and section elimination. Additional examples show how MPC reduced mud losses and ensured cement integrity, while reverse-circulation MPC minimized reaming time. Results also include improved well integrity, reduced non-productive time, and enhanced safety through early kick detection and accurate ballooning identification, demonstrating the tangible economic and operational value of MPW.

17.10 Closing & Adjournment

The following paper proposals are presented as posters and will be included in the conference if a scheduled paper becomes unavailable. In addition, these presentations will be made available in the IADC conference proceedings, should the author so desire.

Dual Gradient Drilling: Victories, Constraints and Prospects for Wells of the Future in an Uncertain Market: Bassey Bassey, Researcher, Coventry University, Ekpenyong A. Ana, Okokon E. Bassey, University of Calabar (SPE 233742)
This paper presents a comprehensive analysis of Dual Gradient Drilling (DGD) technology, examining its technical victories, operational constraints, and future prospects through global case studies from the Gulf of Mexico, North Sea, Brazil, and West Africa. Using the Novelty-Constraints-Impacts (NCI) framework, we quantify verified per-well savings of $9-15 million and 30-50% cost reductions through casing elimination. A multi-criteria decision support system is introduced to guide operators in selecting optimal DGD methods based on well objectives, geological conditions, and regulatory requirements. The findings provide practical guidance for well construction in challenging environments while identifying emerging applications in the net-zero era.

Practical Technology Simplification for Offshore MPD: Reducing Complexity While Improving Safety and Reliability: Shawn McClosky, Product Line Manager – MPD, NOV, Linden Duong, Ian Barker, Noble
This presentation examines how evolving offshore MPD applications drive OEM technology toward a balance of advancement and simplicity. It highlights two proven, low complexity solutions: the MPD HFGN for rapid, remote flowline connection/disconnection and an in situ replaceable stripping sleeve that protects the DSIT annular element to reduce wear, premature damage, and changeout downtime. Using field data from rig examples with and without these products, the presentation aims to quantify efficiency gains and reviews safety improvements based on drilling contractor input. It also discusses active vs. passive Deepwater RCD IRJ package options.

Executing PMCD with Downhole Deployment Valve (DDV) with Annulus Access in Shallow Water Wells: Magdeline Mathew, Wells Supervisor, Joachim Wan, Razif Mohd-Radzi, Sarawak Shell Berhad (SPE 233743)
Incorporation of DDV with annulus access as a reliable enabler for high angle carbonate development wells with risk of total losses. This technology reduces well control exposure and risks of stuck pipe, inadequate wellbore clean-up, and potential productivity impairment. A showcase of successful field implementation in offshore Malaysia, design evolution, and identification of candidate wells where the technology delivers maximum value in delivering safer operations and more predictable campaign outcome.

Campaign Driven Efficiency Improvements in HPHT Managed Pressure Drilling Through Reduced Static Overbalance and Surface Back Pressure Control: Jim Doran, MPD Manager, Exceed Energy, Marc Jamieson, Ithaca Energy
This presentation outlines how Managed Pressure Drilling was progressively optimized across four HPHT development wells to improve drilling efficiency. A feasibility study recommended a statically underbalanced approach with controlled surface back pressure, and a phased implementation strategy was adopted to integrate MPD into the campaign. Lessons from early wells drove changes in mud weight strategy, connection management, tripping philosophy, and dynamic pressure testing. The final well achieved 39 DHD per 10,000 ft and was delivered 14.6 days under AFE, demonstrating MPD as an efficiency tool aligned to well objectives rather than a narrow focus on pressure control.

Deepwater Drillship with World’s Most Capable CML System Reducing Well Cost: Nick Ward, MPD Manager, John Mitchell, Stuart Wyse, Stena Drilling, Dave Smith, Rudy Flores, Enhanced Drilling
This presentation covers work by a drilling contractor and service company to develop an innovative installation of the world’s most powerful Controlled Mud Level (CML) system on a 7th Generation Deepwater Drillship. Providing a number of world firsts, it will outline the technical advances made on previous CML systems and identify exactly how this increased capability is delivering well construction benefits for the industry. It will also explain how the worlds first integrated CML rig contract increases access to this technology for global operators.

New Data-Driven KPIs for MPD: Jennifer Market, Chief Scientist, Lars Oy, Well ID, Michael Shaver, Siddhartha Lumkad, Var Energi (SPE 233725)
Managed Pressure Drilling (MPD) aims to maintain bottomhole pressure within a narrow pressure window, but traditional KPIs—based on 1 Hz data and focused mainly on connections—may overlook significant transient fluctuations. High-frequency (100 kHz) measurements from North Sea wells reveal frequent short-duration pressure excursions linked to drilling dynamics. Although brief, these events can cause cumulative formation fatigue affecting drilling, completion, and production. Revised KPIs—tracking time, percentage, and frequency of excursions outside limits—combined with improved visualization, enable more effective MPD optimization and better overall well performance.

Optimizing MPD Surface Manifold Isolation Using a Stemless Gate Valve with Integrated Double Block-and-Bleed Functionality: Reese Jones, Vice President of Business Development, Fernando Marcancola, Kinetic Pressure Control (SPE 233726)
This presentation discusses an optimized isolation concept for Managed Pressure Drilling (MPD) surface manifolds using a stemless gate valve (SGV) with integrated double block and bleed (DBB) functionality. The approach leverages a DBB SGV design that has been extensively deployed and validated in high cycle well fracturing applications and adapts it for surface backpressure MPD operations. The presentation explains the DBB design fundamentals, isolation verification method, and redundancy, and evaluates benefits for MPD including reduced valve count, fewer leak paths, smaller footprint, and improved safety through clear, verifiable isolation during routine operations and flow path reconfiguration.

The Success of the First Drilled Mauddud Horizontal Injector Well with MPD to Eliminate Casings Cost by Comingling Sections and Overcoming Drilling Hazards Crossing Overlaying Formations with Different Pore Pressure Profiles: Abdulaziz Hassan, Senior Drilling and Workover Engineer, Satya Gupta, Ali Alkhaldi, Abdulaziz Alsaeedi, Abdulaziz Alanezi, Kuwait Oil Company, Raghad AlQabandi, Hakim Benyounes, Amine Mohammed, Hesham Abduljawad, Weatherford (SPE 233727)
The presentation will showcase the main concept of the previous casing design and the new casing design, highlighting the value of MPD in slimming casing designs while overcoming complex challenges of drilling as well as ruining and setting a long string casing. the presentation will highlight the major concerns on why this approach was not applied in the past covering main challenges encountered through the profile history in KOC.