Dynamic Flow Control Valve Optimization for Wellbore Production
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Solution Overview
Problem
Current inflow control devices (ICDs) and flow control valves (FCVs) face challenges in optimizing hydrocarbon production, as their effective cross-sectional area is either fixed or requires complex and time-consuming adjustments to maximize oil production while minimizing water cut, especially in multi-segment well models.
Innovation Solution
The method involves optimizing the design configuration of ICDs and FCVs by using direct-continuous and pseudo-index approaches, which allow for dynamic adjustment of the effective cross-sectional area through Newton methods, pattern searches, and proxy-optimization techniques, enabling real-time control and optimization of valve settings to achieve operational objectives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional ICD nozzle settings are used based on initial reservoir characterization, then the device complexity is low, but the productivity is suboptimal because the cross-sectional area cannot be dynamically adjusted to changing reservoir conditions
Solution Approach 1:
The patent applies dynamics by transforming the static ICD nozzle system into a dynamic flow control valve system that can continuously adjust its cross-sectional area. The FCV uses an actuator mechanism to modify the valve opening based on real-time reservoir conditions, enabling adaptive control of fluid flow rates to maximize hydrocarbon production throughout the production cycle.
Solution Approach 2:
The patent implements parameter changes by varying the effective cross-sectional area of the flow control valve as a controllable parameter. The optimization system dynamically adjusts the valve opening parameter in response to changing reservoir pressure, fluid composition, and production objectives, allowing the system to adapt to evolving conditions without physical intervention.
2Productivity
If flow control valves with dynamic adjustment capability are deployed, then the productivity can be optimized, but the ease of operation deteriorates due to the complex optimization procedures required
Solution Approach 1:
The patent applies self-service by implementing an automated optimization system that independently manages FCV settings. The system uses real-time data from reservoir monitoring, production objectives, and optimization algorithms to automatically determine and execute optimal valve configurations without requiring manual intervention from operators, thereby simplifying operation while maintaining high productivity.
Solution Approach 2:
The patent implements feedback through a closed-loop control system that continuously monitors production performance and reservoir conditions, compares actual outcomes with target objectives, and automatically adjusts FCV settings accordingly. This feedback mechanism enables the system to self-correct and optimize production dynamically, eliminating the need for complex manual optimization procedures.
3Productivity
If traditional reservoir simulation methods are used for optimization, then the measurement precision is sufficient for initial planning, but the time consumption is excessive for real-time operational optimization
Solution Approach 1:
The patent applies preliminary action by pre-computing optimization algorithms and preparing decision-support models before real-time operation. The system pre-processes reservoir data, establishes production objectives, and configures optimization frameworks in advance, enabling rapid real-time adjustments without requiring extensive computation during actual production optimization, thus reducing time loss while maintaining precision.
Data Source
AI summary
A method and an apparatus for managing a subterranean formation including collecting information about a flow control valve in a wellbore traversing the formation, adjusting the valve in response to the information wherein the adjusting includes a Newton method, a pattern search method, or a proxy-optimization method. In some embodiments, adjusting comprises changing the effective cross sectional area of the valve. A method and an apparatus for managing a subterranean formation including collecting information about an inflow control valve in a wellbore traversing the reservoir and controlling the valve, wherein the control includes a direct-continuous approach or a pseudo-index approach.