Sand Control Screen With Brittle Fibers for Erosion Detection
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Solution Overview
Problem
Conventional sand control devices fail to effectively filter out fine particulates that can cause erosion in downhole equipment, leading to equipment damage and difficulty in detecting reservoirs with high concentrations of these particulates.
Innovation Solution
A sand control screen assembly with a base pipe and mesh layer featuring brittle, functionalized fibers that break off and enter the production fluid upon impact, allowing for the detection of erosive particulates through solid or liquid state analysis, and optionally a functionalized polymer coating that also breaks off and is detectable in the fluid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional sand control devices with standard screen layers are used, then larger particulates are filtered out, but fine erosive particulates pass through and cause equipment damage
Solution Approach 1:
The patent changes the physical and chemical parameters of the screen material by using brittle fibers with specific chemical functionality. These fibers are designed to break at controlled stress thresholds, creating detectable fragments when impacted by erosive particulates. This parameter change enables the screen to both filter particulates and provide erosion detection capability.
Solution Approach 2:
The brittle functionalized fibers act as an intermediary between the erosive particulates and the detection system. When particulates impact the fibers, the fibers break and release detectable fragments into the production fluid, mediating the transfer of erosion information from the downhole environment to the surface analysis equipment.
2Reliability
If sand control devices are installed to prevent particulate entry, then equipment protection is improved, but detection of erosive particulates becomes difficult
Solution Approach 1:
The patent employs detectable fragments with specific chemical functionality that can be identified through various detection methods. The functionalized material on the brittle fibers provides a distinctive signature that enables differentiation between natural formation solids and erosion-induced fiber fragments, facilitating easy detection and measurement.
Solution Approach 2:
The system establishes a feedback loop where broken fiber fragments are continuously carried in the production fluid to the surface, providing real-time information about erosion conditions downhole. This feedback mechanism enables ongoing monitoring and measurement of particulate concentration and erosion potential.
3Quantity of substance
If multiple screen layers are added to improve filtration, then device complexity increases, but erosion detection capability is not provided
Solution Approach 1:
The brittle functionalized fiber layer serves multiple functions simultaneously: it acts as a filtration screen for particulates, provides erosion detection through controlled breakage, and offers a detectable signal for measurement. This multi-functionality eliminates the need for separate detection devices, reducing overall system complexity while maintaining filtration efficiency.
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
Enables the identification and measurement of erosion potential by detecting the presence and concentration of broken fibers or coating materials in the production fluid, providing insights into the level of erosion and particulate concentration in different reservoir regions.
Implementation Method 1
wherein one or more of the plurality of brittle functionalized fibers break off from the mesh layer when impacted by one or more particulates
Implementation Method 2
At least a portion of the tracer coating breaks off from the sand screen, the base pipe, or both, as coating particles when impacted by one or more particulates during production through the sand control screen assembly
Data Source
AI summary
A sand control screen assembly includes a base pipe, a mesh layer, and a sand screen layer. The base pipe includes a tubular surface and a plurality of perforations formed in the surface. The mesh layer is disposed around the base pipe. Additionally, the mesh layer comprises a plurality of functionalized fibers, wherein one or more of the plurality of functionalized fibers break off from the mesh layer when impacted by one or more particulates. In some embodiments, a sand control screen assembly includes a screen layer with a functionalized coating.