Filter Assembly Flow Bore Deflector for Wellbore Separation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current filter assemblies in oil and gas operations face challenges in effectively separating particulate materials from wellbore fluid, leading to potential clogging of equipment and reduced efficiency.

Innovation Solution

A filter assembly incorporating a flow cross and a flow bore deflector with a deflector element and multiple through-holes, designed to deflect particulate materials into a separate passage for accumulation, while allowing clean fluid to flow through, thereby preventing clogging and ensuring continuous operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a filter assembly is used to separate particulate materials from wellbore fluid, then the separation effectiveness is improved, but the device complexity increases due to the need for flow cross and deflector components

Engineering Contradiction:
Improveseparation effectivenessVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filter assembly is divided into distinct functional segments: a flow cross that divides the fluid flow into multiple passages, and a flow bore deflector with multiple deflector elements that separately intercept particles in each passage. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The deflector elements act as intermediary components between the flow cross and the particulate materials. These deflector elements intercept particles and redirect them into the flow bore, serving as a mediating mechanism that enables effective separation without requiring direct contact between the main fluid flow and particle-trapping structures.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a flow bore deflector with multiple deflector elements is used, then the separation of particulate materials is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveseparation effectivenessVSAvoidmanufacturing precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

Each deflector element is designed with specific local geometric characteristics tailored to its position and function within the flow bore. The deflector elements have varying shapes, sizes, and orientations optimized for their respective locations, allowing high separation effectiveness while maintaining manufacturability through standardized local designs.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The flow bore deflector utilizes three-dimensional spatial arrangement of multiple deflector elements within the flow bore volume. By distributing deflector elements across different spatial dimensions (radial, axial, and angular positions), the system achieves comprehensive particle interception without requiring extremely tight tolerances on individual component dimensions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If the filter assembly structure is simplified, then the ease of manufacture is improved, but the separation effectiveness may be reduced

Engineering Contradiction:
Improveease of manufactureVSAvoidseparation effectiveness
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The flow cross and flow bore deflector are designed as universal components that can be manufactured using standard machining processes. The flow cross serves both as a flow distribution device and as a structural support for the deflector elements. The deflector elements themselves serve multiple functions: particle interception, flow direction control, and structural reinforcement, thereby simplifying the overall manufacturing process while maintaining separation effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 effectively separates particulate materials from wellbore fluid, preventing equipment clogging and maintaining system efficiency by deflecting and accumulating particles, ensuring reliable operation and extended equipment durability.

Implementation Method 1

a flow bore deflector with a deflector element and multiple through-holes, designed to deflect particulate materials into a separate passage for accumulation

Methodology Applied
Scientific EffectDeflection:

Implementation Method 2

a plurality of through-holes through which the fluid is adapted to flow after the particulate materials are deflected

Methodology Applied
Scientific EffectFluid flow through porous structure: Porosity

Data Source

PatentUS11519254B2Filter assembly including flow bore deflector
Publication Date: 2022.12.06 VALVEWORKS USA INC
  • US11519254B2 patent drawing
  • US11519254B2 patent drawing
  • US11519254B2 patent drawing

AI summary

A system (e.g., an oil and/or gas production system) including a filter assembly for separating particulate materials from wellbore fluid. The filter assembly includes a flow cross and a flow bore deflector. The flow cross includes a flow block, a first passage formed in the flow block, and a second passage formed in the flow block. The first and second passages intersect. The flow bore deflector comprises a cap, an extension rod, and a deflector element. The deflector element extends at the intersection between the first and second passages to separate the particulate materials from the wellbore fluid.