Single-Use Wellbore Setting Tool Gas Diverter

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Solution Overview

Problem

Current setting tools for wellbore operations are complex, expensive, and require skilled labor for resetting, with excessive force delivery issues and complexity leading to inefficiencies and safety concerns.

Innovation Solution

A single-use setting tool with a two-piece design, integrating a power charge and initiator, which eliminates the need for a separate firing head and allows for controlled force delivery through a gas diverter channel and expansion chamber, providing shot confirmation and reduced shock during tool actuation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a reusable setting tool is used with multiple components and precise tolerances, then the tool can be reset and reused, but the complexity, weight, and cost of the tool increase substantially

Engineering Contradiction:

Improvetool reuse capabilityVSAvoidnumber of components and tolerances

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The setting tool is divided into two separate parts: a reusable setting tool body and a disposable power charge assembly. This segmentation allows the complex components to be isolated in the reusable portion while the simple power charge is discarded after use, resolving the contradiction between reuse capability and overall system complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The power charge assembly is designed as a disposable component that is discarded after a single use. This eliminates the need to reset or maintain the power charge, reducing the complexity and skilled labor requirements for tool reuse while maintaining productivity

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Speed

If a power charge is configured to deliver force over a short time duration, then the tool can be actuated, but excessive force may damage the setting tool, other downhole tools or the wellbore

Engineering Contradiction:

Improveactuation speedVSAvoidexcessive force damage

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The system transitions from static force delivery to dynamic controlled force delivery. The power charge is configured to deliver force over an extended time duration with controlled pressure buildup, allowing the piston to move axially and actuate the plug while preventing excessive force that could damage tools or the wellbore

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

A piston is introduced as an intermediary between the power charge and the plug. The piston converts the explosive force from the power charge into controlled axial movement, mediating the force delivery to prevent direct transmission of excessive force to the downhole tools and wellbore

Inventive Principle:

Principle #24Intermediary (Mediator)

3Power

If a strong explosive force is delivered over a very short time duration, then the tool can be actuated, but the setup is not ideal and may cause excessive shock

Engineering Contradiction:

Improveexplosive forceVSAvoidshock and damage

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The system incorporates cushioning elements and a piston mechanism that prepare for and absorb the explosive force before it is fully transmitted. The piston and associated components are designed to manage the shock of force delivery, preventing damage to the setting tool and downhole tools while maintaining effective actuation

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

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 single-use setting tool simplifies operations, reduces costs, and ensures safe and predictable force delivery, eliminating the need for skilled labor and complex resetting processes, while providing effective actuation with reduced shock and improved control over force application.

Implementation Method 1

activation of the power charge results in a substantial force by means of combustion being exerted on the setting tool piston

Methodology Applied

Scientific EffectCombustion: Combustion

Implementation Method 2

A gas diverter channel is open to and extends from the piston cavity through the piston annular wall

Methodology Applied

Scientific EffectGas flow:

Implementation Method 3

An expansion chamber is defined by an inner portion of the outer sleeve and an outer portion of the annular wall of the inner piston

Methodology Applied

Scientific EffectPressure expansion:

Data Source

PatentUS10927627B2Single use setting tool for actuating a tool in a wellbore

Publication Date: 2021.02.23 DYNAENERGETICS EURO GMBH

AI summary

A single use setting tool for actuating a tool in a wellbore includes an inner piston extending through a central bore of an outer sleeve. The inner piston has a seal adapter portion and a piston cavity housing an initiator holder for receiving a push-in detonator. A gas diverter channel is open to and extends from the piston cavity through an annular wall of the piston, to transfer gas pressure to a gas expansion chamber for stroking the outer sleeve. A method of actuating a wellbore tool with a single use setting tool includes inserting an initiator into the initiator holder, attaching a tandem seal adapter to the seal adapter portion of the inner piston, and relaying an electrical signal to a line-in portion of the initiator, to initiate the initiator. The single use setting tool may be used in a wellbore tool string.