Segmented Vibratory Screen Housing for Increased Effective Area

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Solution Overview

Problem

Vibratory separators, such as shale shakers in the oil and gas industry, face limitations in maximizing fluid capacity due to pre-determined screen sizes and bonded wire mesh, which reduces the effective screening area and processing efficiency.

Innovation Solution

A filtering assembly with a screen housing featuring transverse ribs and screen segments arranged in alternating angles to increase the effective screening area, allowing for multiple screening levels and enhanced fluid filtration capacity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wire mesh is bonded to the screen frame to secure the screen, then the screen is held in place, but the bonded area blocks off screen space and reduces the effective open screening area

Engineering Contradiction:

Improvescreen securityVSAvoideffective screening area

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The screen is divided into multiple segments that can be independently positioned and secured. Each segment is secured at discrete locations rather than being continuously bonded, which minimizes the blocked area while maintaining screen security. The segments are arranged to maximize the open screening area between them.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If the screen size is pre-determined by the shaker footprint, then the screen fits the equipment constraints, but the screening area is limited and fluid capacity cannot be maximized

Engineering Contradiction:

Improveequipment compatibilityVSAvoidfluid processing capacity

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The screen segments are arranged in a three-dimensional configuration that extends beyond the traditional two-dimensional平面 screening area. By stacking or layering screen segments vertically or at angles, the effective screening area is increased without exceeding the shaker footprint constraints, thereby maximizing fluid processing capacity within equipment limitations.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Strength

If wire mesh decreases the non-blanked area, then the screen structure is maintained, but the effective screening area is reduced by more than 50%

Engineering Contradiction:

Improvescreen structure integrityVSAvoideffective screening area

Core Design Contradiction:

StrengthVSArea of stationary object

Solution Approach 1:

Instead of using uniform wire mesh across the entire screen area, the invention applies screening only where needed to maintain structural integrity. Screen segments are strategically positioned to provide strength at critical locations while leaving maximum area open for fluid processing. The segmentation allows for localized reinforcement without compromising overall screening area.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10758848B2High capacity filtering screen

Publication Date: 2020.09.01 SCHLUMBERGER OILFIELD UK LTD

AI summary

The present disclosure is directed to a filtering assembly and a method of manufacturing a filtering assembly. The filtering assembly may increases an effective screening area. Specifically, embodiments disclosed herein include a screen housing having two sidewalls and two end walls, defining a perimeter with a length and a width. The screen housing also includes a top face and a bottom face. A plurality of screen segments may be positioned on the top face of the screen housing, such that the plurality of screen segments on the top face provide a screening surface area less than a total surface area of the top face.