ICD Fluid Composition Measurement for Adaptive Flow Control
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Solution Overview
Problem
Hydrocarbon production wells face challenges with water and gas coning, sand production, and imbalanced production zones, necessitating improved methods to variably restrict fluid flow and optimize oil production while maintaining reservoir pressure.
Innovation Solution
A system comprising a downhole power generator, sensor, and production valve, integrated with a variable flow resistance mechanism, which uses sensors to monitor fluid properties and adjust flow rates through actuators to control fluid flow based on detected characteristics, enabling dynamic management of production and injection operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If flow restriction is applied to prevent water coning, then water production is minimized, but oil production may be compromised
Solution Approach 1:
The inflow control device employs a variable flow restriction mechanism that dynamically adjusts the flow restriction based on real-time fluid properties detected by sensors. The flow restriction is not fixed but varies according to the detected characteristics of the production fluid, allowing optimization of both water control and oil production under different reservoir conditions
Solution Approach 2:
The system incorporates sensors that continuously detect fluid properties (such as density, viscosity, or composition) and provide feedback to a control mechanism. This feedback loop enables the flow restriction to be automatically adjusted in response to changing production conditions, balancing water coning prevention with oil production maintenance
2Quantity of substance
If flow restriction is increased to choke back coning, then water production is reduced, but reservoir pressure may be depleted
Solution Approach 1:
The flow restriction is made variable rather than static, allowing the system to adapt to reservoir pressure conditions. When pressure decreases, the flow restriction can be automatically reduced to maintain pressure balance, preventing depletion while still controlling water coning when necessary
Solution Approach 2:
The system changes the flow restriction parameter dynamically based on detected fluid properties and reservoir conditions. By adjusting the flow restriction parameter in response to changing pressure and fluid characteristics, the system maintains reservoir pressure while controlling water production
3Device complexity
If fixed flow restriction is used, then device complexity is reduced, but adaptability to changing fluid properties is lost
Solution Approach 1:
The inflow control device performs self-adjustment by using its own integrated sensors to detect fluid properties and automatically modify the flow restriction accordingly. This self-service capability eliminates the need for external manual adjustment mechanisms, reducing operational complexity while maintaining high adaptability to changing fluid conditions
Solution Approach 2:
The device combines multiple functions into a single integrated system: flow restriction, sensor detection, and automatic control adjustment. This multi-functionality allows the device to adapt to various fluid properties and reservoir conditions without requiring separate systems, maintaining versatility while managing complexity
Data Source
AI summary
Disclosed herein are systems and methods of controlling downhole production flow from one or more production zones of a well. A system may include at least one downhole power generator, at least one sensor, at least one electronic assembly, and at least one production valve. In some systems, the downhole power generator, the sensor, the electronic assembly, and the production valve are incorporated within the same module. The downhole power generator is fluidically connected to the fluid inside the production tubing string. The sensor is electrically connected to the downhole power generator, wherein the sensor measures a phase of the fluid. The electronic assembly is connected to the downhole power generator and the sensor. The production valve is electrically connected to the electronic assembly and fluidly connected to the fluid inside the production tubing string.