High Flow Injection Screen With Sleeves

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing well completion systems face issues such as filter clogging and erosion due to excessive injection fluid velocity, build-up of formation fines, and washout of proppant from induced fractures, which affect the efficiency and longevity of the well-screen assembly during injection and production operations.

Innovation Solution

A high flow injection screen system with sleeves is introduced, featuring a tubular housing with a closure member and a filter with radially extending openings, allowing for controlled fluid flow and reduced velocity to prevent erosion and washout, along with degradable plugs to adjust flow rates and prevent clogging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If injection fluid velocity is increased to maintain high flow rates, then productivity is improved, but filter erosion and proppant washout worsen

Engineering Contradiction:

Improveflow rateVSAvoidfilter erosion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The injection system is divided into multiple injection intervals along the tubular, each with controlled flow distribution. This segmentation allows the total flow rate to be maintained while distributing the velocity across multiple zones, reducing erosion at any single location.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different sections of the injection system are designed with varying properties - the tubular has specific flow characteristics while the sleeves provide localized flow control. This local quality differentiation allows high overall flow while managing velocity distribution to prevent erosion.

Inventive Principle:

Principle #3Local quality

2Reliability

If filter porosity is increased to reduce clogging, then reliability is improved, but debris penetration worsens

Engineering Contradiction:

Improvefilter clogging resistanceVSAvoiddebris penetration

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The gravel-pack filter serves as an intermediary layer between the formation and the tubular. It provides the first line of filtration, capturing debris before it reaches the screen filter, thereby allowing the screen to maintain higher porosity without compromising protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system utilizes porous materials in a hierarchical structure - the gravel-pack filter provides coarse filtration while the screen filter provides fine filtration. This multi-layer porous structure allows optimized porosity at each level, preventing clogging while blocking debris.

Inventive Principle:

Principle #31Porous materials

3Object-affected harmful factors

If sleeve closure is implemented to control flow, then filter erosion is reduced, but device complexity increases

Engineering Contradiction:

Improvefilter erosionVSAvoidflow control mechanism

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The sleeves are designed to be movable between open and closed positions, providing dynamic flow control. This dynamic capability allows the system to adapt flow conditions to prevent erosion while maintaining operational simplicity through straightforward mechanical movement.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system can be configured to automatically control flow through the sleeves based on operational conditions, reducing the need for complex external control mechanisms while still achieving erosion prevention through proper flow management.

Inventive Principle:

Principle #25Self-service

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 system enhances the efficiency and longevity of well-screen assemblies by reducing filter erosion and proppant washout, maintaining high flow rates while preventing excessive velocities and clogging, thereby ensuring stable operation during injection and production.

Implementation Method 1

a filter with radially extending openings, allowing for controlled fluid flow

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

degradable plugs to adjust flow rates and prevent clogging

Methodology Applied

Scientific EffectFlow control:

Implementation Method 3

reducing filter erosion and proppant washout, maintaining high flow rates while preventing excessive velocities

Methodology Applied

Scientific EffectErosion prevention: Erosion

Data Source

PatentUS10487630B2High flow injection screen system with sleeves

Publication Date: 2019.11.26 HALLIBURTON ENERGY SERVICES INC

AI summary

An apparatus has been described, including a tubular housing including opposing first and second end portions and defining an interior surface, an exterior surface, and an internal flow passage; an open inflow area extending radially through the tubular housing and adapted to distribute the radial flow of a fluid from the internal flow passage to the wellbore; a closure member extending within the tubular housing and adapted to cover the open inflow area; and a filter defining a plurality of gaps, the filter concentrically disposed about the exterior surface of the tubular housing and extending axially along at least the open inflow area. In an exemplary embodiment, the open inflow area includes a plurality of openings formed radially through the tubular housing and defining a tubular injection interval extending axially along the tubular housing. A system and assembly have also been described, each incorporating elements of the above described apparatus.