Multi-Chamber Manifold Vortex Mixing for Fracturing Fluid Uniformity
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Solution Overview
Problem
Conventional manifold designs fail to achieve uniform mixing and distribution of fracturing fluids, leading to inadequate fluid pH control and potential formation damage due to uneven fluid distribution and sudden pH changes.
Innovation Solution
A multi-chamber mixing apparatus with angled inlet nozzles creating a vortex for thorough mixing, combined with a secondary mixing chamber and baffles to ensure homogeneous fluid distribution, maintaining optimal pH levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional manifold designs with linear array inlets and outlets are used, then the structure is simple, but uniform mixing and distribution of fluids is insufficient
Solution Approach 1:
The manifold is divided into multiple chambers (first chamber, second chamber, third chamber) with separate inlet and outlet arrays. Each chamber handles specific fluid streams, allowing independent optimization of flow paths and mixing zones. This segmentation enables thorough mixing while maintaining structural organization and manufacturability.
Solution Approach 2:
The patent transitions from a simple linear array configuration to a multi-chamber three-dimensional structure. Fluids enter through inlets in the first chamber, mix through multiple chambers with varying cross-sectional areas, and exit through outlets in the third chamber. This dimensional expansion creates complex flow paths that enhance mixing uniformity while preserving structural simplicity through modular chamber design.
2Quantity of substance
If multiple water sources and flowback are used to increase water availability, then water quantity increases, but fluid uniformity and pH control deteriorate
Solution Approach 1:
The manifold performs preliminary mixing actions in the first and second chambers before fluids reach the outlets. Chemicals are introduced at specific injection points within the chambers, allowing pH adjustment and composition homogenization to occur upstream. This preliminary action ensures that by the time fluids exit through the third chamber outlets, uniformity and pH stability are already established, even when multiple water sources with varying compositions are used.
Solution Approach 2:
The multi-chamber structure acts as an intermediary between multiple water sources and the final fluid distribution. Each chamber serves as a mixing zone where fluids from different sources converge and homogenize. Chemical injection points within the chambers provide additional intermediary control for pH adjustment. This intermediary mixing process eliminates composition variations from different water sources before distributed delivery.
3Stress or pressure
If outermost inlet fluids follow direct flow paths, then flow resistance decreases, but mixing thoroughness deteriorates due to fluids not reaching opposite outlets
Solution Approach 1:
The manifold employs dynamic flow path design where the cross-sectional area of chambers varies along the flow direction. The first chamber has a smaller cross-sectional area that expands into the second chamber, creating flow expansion zones that enhance mixing. This dynamic geometric variation ensures that fluids from outermost inlets are forced to interact with fluids from other inlets through expansion and contraction effects, achieving thorough mixing without significantly increasing flow resistance.
Solution Approach 2:
The patent utilizes hydraulic principles to create forced mixing through chamber geometry and flow path design. The transition between chambers with different cross-sectional areas creates hydraulic expansion and contraction effects that enhance fluid intermixing. Chemical injection points positioned within chambers leverage hydraulic flow patterns to distribute chemicals uniformly throughout the fluid streams, ensuring thorough mixing while maintaining acceptable pressure drops.
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 solution ensures uniform mixing and distribution of fracturing fluids, maintaining stable pH levels and minimizing formation damage, thereby enhancing the efficiency and reliability of hydraulic fracturing operations.
Implementation Method 1
A multi-chamber mixing apparatus with angled inlet nozzles creating a vortex for thorough mixing
Data Source
AI summary
One or more embodiments relate to systems and methods for mixing of two or more fluids using a multi-chamber manifold. One or more embodiments relate to optimal mixing.