Anisotropic-Density Inflow Control Member for Watercut Management
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Solution Overview
Problem
Conventional systems for managing watercut in well production struggle with effectiveness and efficiency in limiting production from zones with high water content, as they fail to accurately control fluid flow based on density variations over the life of a well.
Innovation Solution
A wellbore system with an inflow control device and a member having anisotropic density, allowing for dynamic control of fluid flow by moving relative to the device to fully block, partially block, or allow flow based on fluid density, achieved through a valve arrangement with a member that is additively manufactured to have varying densities for precise fluid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional systems are used to manage watercut in well production, then the system structure is simple, but the effectiveness and efficiency in limiting production from zones with high water content deteriorates
Solution Approach 1:
The member's density is changed as a parameter to respond to fluid density variations. By designing the member with specific density characteristics, it becomes more effective at distinguishing between water and oil phases, thereby improving the reliability of watercut management without adding complex control systems.
Solution Approach 2:
The member is constructed using composite materials with varying density distributions. This allows the single component to achieve sophisticated functionality for fluid differentiation and flow control, improving effectiveness while avoiding the need for multiple separate devices.
2Manufacturing precision
If conventional inflow control devices are used, then the device complexity is low, but the precision in controlling fluid flow based on density variations deteriorates
Solution Approach 1:
The member's density is changed as a parameter to respond to fluid density variations. By designing the member with specific density characteristics, it becomes more effective at distinguishing between water and oil phases, thereby improving the reliability of watercut management without adding complex control systems.
Solution Approach 2:
The member features non-uniform density distribution with different density regions along its length. This local quality variation enables the single component to perform multiple functions: allowing flow for oil, blocking flow for water, and enabling partial flow for mixed phases, thereby achieving high precision flow control.
3Device complexity
If a single component system is used for inflow control, then the device complexity is reduced, but the ability to provide precise density-based flow control deteriorates
Solution Approach 1:
The member is constructed using composite materials with varying density distributions. This allows the single component to achieve sophisticated functionality for fluid differentiation and flow control, improving effectiveness while avoiding the need for multiple separate devices.
Solution Approach 2:
The member features non-uniform density distribution with different density regions along its length. This local quality variation enables the single component to perform multiple functions: allowing flow for oil, blocking flow for water, and enabling partial flow for mixed phases, thereby achieving high precision flow control.
4Productivity
If conventional systems are used for watercut management, then the ease of operation is maintained, but the productivity in optimizing production deteriorates
Solution Approach 1:
The member operates autonomously by responding to fluid density variations without requiring external control systems or manual intervention. The density-based mechanism automatically differentiates between water and oil phases and adjusts flow accordingly, thereby improving productivity while maintaining ease of operation.
Solution Approach 2:
The invention replaces complex mechanical control systems with a density-based passive mechanism. The member's physical properties enable automatic flow control based on fluid density, eliminating the need for complex actuators, sensors, and control logic, thus maintaining operational simplicity while enhancing productivity.
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
The system effectively manages fluid flow by allowing full or partial flow based on fluid density, preventing unwanted water or gas ingress, thereby optimizing production by ensuring target fluids are produced while limiting water or gas content.
Implementation Method 1
The member has anisotropic density and is configured to move relative to the inflow control device to cause the inflow control device to allow, fully block or partially block flow from the zone to the production string based on a density of a fluid flowing into the inflow control device from the zone
Implementation Method 2
The member has anisotropic density configured to move the member relative to the inflow control device such that the inflow control device allows, fully blocks, or partially blocks flow from a zone to a production string based on a density of a fluid flowing into the inflow control device from the zone
Data Source
AI summary
A member that is a single element for controlling flow through an inflow control device, has anisotropic density configured to move the member relative to the inflow control device such that the inflow control device allows, fully blocks, or partially blocks flow from a zone to a production string based on a density of a fluid flowing into the inflow control device from the zone.