MPD Influx Envelope Automation With Transient Multiphase Simulation
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Solution Overview
Problem
Existing well control planning systems struggle to accurately and efficiently manage influxes during managed pressure drilling operations due to the complexity of integrating transient multiphase flow models, leading to potential wellbore equipment damage from excessive pressures.
Innovation Solution
An automated workflow utilizing a cloud-based simulation cluster that combines a dynamic pressure model and a transient multiphase model to generate an influx management envelope, enabling parallel processing of multiple parameters and reducing well control risks by accurately modeling fluid pressure variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If transient multiphase flow models are integrated into well control planning systems, then measurement precision and reliability of influx management improve, but device complexity and computational requirements increase
Solution Approach 1:
The system divides the complex multiphase flow modeling into discrete computational segments processed through parallel simulation clusters. Each segment handles specific parameter calculations (pressure, temperature, phase composition) independently, allowing the complex transient multiphase model to be broken down into manageable computational units that can be executed and integrated systematically.
Solution Approach 2:
The patent introduces an automated workflow system as an intermediary layer between user input and the complex transient multiphase flow models. This workflow automates the integration process, handling data transformation, model execution coordination, and result synthesis, thereby shielding users from the underlying computational complexity while maintaining high measurement precision.
2Productivity
If parallel processing of multiple parameters is implemented, then productivity of influx envelope generation improves, but device complexity increases
Solution Approach 1:
The parameter calculation space is segmented into independent parallel processing tasks. Each simulation cluster node handles specific parameter combinations (different influx volumes, wellbore configurations, or fluid properties) simultaneously, enabling the system to generate comprehensive influx envelopes faster by distributing computational load across multiple processors working in parallel.
Solution Approach 2:
The simulation cluster architecture is designed as a universal computing platform capable of executing multiple types of well control simulations and parameter calculations through a standardized interface. This multi-functional design allows the same hardware infrastructure to handle diverse computational tasks (multiphase flow, heat transfer, phase equilibrium) without requiring separate specialized systems for each function.
3Reliability
If accurate multiphase simulations are performed, then reliability of well control planning improves, but loss of time for computation increases
Solution Approach 1:
The system performs preliminary computations by pre-calculating and storing baseline results for common wellbore configurations, fluid properties, and operational scenarios. When a specific influx scenario needs analysis, the system retrieves and adjusts these pre-computed results rather than performing complete transient multiphase simulations from scratch, significantly reducing computation time while maintaining reliability through the use of accurate base models.
Solution Approach 2:
The automated workflow implements adaptive computational pacing that skips detailed transient calculations for parameters or scenarios where simplified models provide sufficient accuracy. The system identifies which parameters require full transient multiphase analysis versus those that can be estimated from steady-state or simplified dynamic models, thereby rushing through less critical computations while maintaining rigorous analysis where it matters most for well control safety.
Data Source
AI summary
An Influx Management Envelopes (IME) for MPD through a cloud-based solution is generated, simplifying the process for routine application in drilling operations and providing parallel computing to enhance the efficiency of IME generation by parameterizing various influx scenarios. Utilizing a transient multiphase flow engine, the study establishes kick tolerance thresholds for safe influx volume determination. The analysis includes assessing associated risks during kick circulation using MPD system. Parallel computing facilitates faster computations and improved scalability. The combined approach integrates simulation results into an operational envelope for safer decision-making. The IME may be determined considering company well control policies, for adherence to established guidelines and maintain a consistent and standardized approach to well control practices. Collaborative workflows facilitate seamless teamwork, communication, and coordination. The integration of a collaborative framework enables effective sharing of expertise and contributes significantly to a comprehensive understanding of drilling operations.