Magnetic Inflow Control Device for Wellbore Scale Inhibition
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Solution Overview
Problem
The challenge in hydrocarbon production is to inhibit scale production in wellbore equipment without interfering with fluid production, as scale formation restricts fluid flow and damages equipment.
Innovation Solution
A magnet assembly is positioned within a flow control device in the wellbore to create an alternating magnetic field, which increases the flow velocity of the fluid and generates a magnetohydrodynamic force that inhibits scale formation by clustering dissolved ions in the fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnet assembly is positioned within a flow control device to create an alternating magnetic field, then scale production is inhibited by clustering dissolved ions, but the device complexity increases
Solution Approach 1:
The magnet assembly is integrated within the flow control device housing, merging the magnetic field generation function with the existing flow control structure. This combination eliminates the need for separate magnetic field generation equipment and reduces overall system complexity while maintaining scale inhibition effectiveness.
Solution Approach 2:
The flow control device is designed to serve multiple functions: it controls fluid flow rate and simultaneously generates an alternating magnetic field to inhibit scale formation. This multi-functionality reduces the need for additional separate devices and simplifies the overall system architecture.
2Reliability
If the flow velocity is increased to better inhibit scale formation, then the magnetohydrodynamic force increases and scale inhibition improves, but the fluid production may be interfered with
Solution Approach 1:
The flow control device incorporates adjustable flow restriction mechanisms that allow dynamic optimization of flow velocity. The system can be adjusted to maintain velocities sufficient for generating effective magnetohydrodynamic forces while preventing excessive velocity that would compromise fluid production rates.
Solution Approach 2:
The alternating magnetic field parameters (frequency, strength) are optimized to work effectively with the specific flow velocity range of the wellbore fluid. By tuning these parameters, the system achieves effective scale inhibition at moderate flow velocities without requiring extreme velocity increases that would interfere with production.
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 magnet assembly effectively inhibits scale production by increasing the flow velocity and magnetohydrodynamic force, preventing scale formation on wellbore equipment while maintaining fluid production.
Implementation Method 1
the magnet assembly is to generate a magnetohydrodynamic force in the fluid as the fluid flows through the flow control device
Implementation Method 2
A magnet assembly is positioned within a flow control device in the wellbore to create an alternating magnetic field
Implementation Method 3
the flow control device may be configured with a flow restrictor that restricts the flow of fluid into the tubular string, thus increasing the flow velocity as the fluid flows through the flow control device
Data Source
AI summary
An apparatus to be positioned in a wellbore formed in a subsurface formation. The apparatus comprises a flow control device to restrict a fluid flowing from the subsurface formation and into a tubular string positioned in the wellbore. The apparatus comprises a magnetic assembly positioned proximate the flow control device.