Flexible Canopy Valve for Selective Inflow Control
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Solution Overview
Problem
Inflow control devices in oil and gas wells struggle to effectively restrict the production of water and gas, leading to uneven production and increased costs associated with separating undesired fluids from desired hydrocarbons, as conventional devices are passive and cannot adjust to fluid properties.
Innovation Solution
The implementation of a directional or 'umbrella valve' mechanism that creates a seal to restrict flow in one direction while allowing flow in the opposite direction, using a flexible elastomeric canopy that flexes to open or close ports based on pressure differences, allowing for adjustable flow control in inflow control devices and other downhole equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional passive ICDs are used to control fluid flow, then device simplicity is maintained, but the ability to selectively restrict water and gas flow while allowing hydrocarbon production is insufficient
Solution Approach 1:
The valve canopy is designed to respond to changes in fluid pressure parameters, automatically opening or closing based on the pressure differential across the ICD. This passive response to parameter changes enables selective flow control without complex active control systems
Solution Approach 2:
The valve mechanism is self-regulating, using the fluid pressure itself to control the canopy position. The system serves itself by using the flow conditions to automatically adjust the valve state, eliminating the need for external control systems or power sources
2Productivity
If open ports are used in ICDs during production, then bidirectional flow capability is maintained for operational flexibility, but inability to restrict undesired fluids (water and gas) leads to increased separation costs
Solution Approach 1:
The valve transitions from a static open state to a dynamic state that can open or close based on flow conditions. The canopy moves passively in response to pressure differentials, enabling the system to adapt its flow restriction characteristics dynamically without external control
Solution Approach 2:
The valve mechanism selectively extracts or removes the harmful function of allowing water and gas flow while preserving the useful function of hydrocarbon production. By introducing the canopy, the system takes out the unwanted bidirectional flow capability and replaces it with selective unidirectional flow control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables more controlled and efficient hydrocarbon production by restricting water and gas flow while allowing oil flow, optimizing production profiles and reducing issues related to water influx and sand production, thereby enhancing the overall productivity and reducing operational costs.
Implementation Method 1
a flexible elastomeric canopy that flexes to open or close ports based on pressure differences
Implementation Method 2
flexes to open or close ports based on pressure differences
Data Source
AI summary
A valve useful in an inflow control device for downhole use in an oil and gas well completion equipment is disclosed. The valve may have a flexible canopy that prevents fluid flow between the base pipe and the formation when flow travels in a first direction and permits fluid flow between the base pipe and the formation when flow travels in a second direction.