Completion Tool Anchor With Attachment Feature

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Solution Overview

Problem

In the oil and gas recovery industry, tools positioned within the liner or casing often need to remain during production, but existing methods do not effectively allow for their deployment and fixation within the completion structure without obstructing fluid flow or being removable.

Innovation Solution

A completion tool locating arrangement featuring an anchor with a bore and a seat for a plug, along with an attachment feature, allows tools to be securely positioned and fixed within the completion structure, utilizing threads or other locking mechanisms, and made of durable materials for high-pressure environments, while maintaining low flow restriction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If tools are positioned within the liner or casing to remain during production, then tool retention and reliability are improved, but device complexity and installation difficulty increase

Engineering Contradiction:
Improvetool retentionVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system is divided into separate functional components: an anchor for securing to the completion structure, a tool for the specific function, and an attachment feature connecting them. This segmentation allows each component to be optimized independently while simplifying the overall installation process through modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The anchor is pre-configured with attachment features (such as threaded bores or mechanical interlocks) before deployment. This preliminary preparation enables straightforward tool attachment and secure fixation to the completion structure during installation, reducing on-site complexity while ensuring reliable retention.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If tools are securely fixed within the completion structure, then tool retention is improved, but flow restriction increases

Engineering Contradiction:
Improvetool retentionVSAvoidflow restriction
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The anchor and tool assembly is designed with localized securing features at specific positions, allowing the tool to be firmly retained at predetermined locations while maintaining open flow paths through the completion structure. The fixation elements are positioned to minimize interference with fluid flow channels.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The attachment and fixation mechanisms operate in dimensional spaces perpendicular to the primary flow direction. By securing tools radially or axially at strategic positions rather than blocking the flow path, the system achieves reliable tool retention while preserving uninterrupted fluid flow through the completion structure.

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

3Strength

If durable materials are used for high-pressure environments, then reliability and strength are improved, but manufacturing complexity and cost increase

Engineering Contradiction:
Improvepressure resistanceVSAvoidmanufacturing complexity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The system employs materials and design parameters optimized for high-pressure downhole environments, such as high-strength alloys or composite materials with enhanced mechanical properties. These material parameter changes ensure adequate strength and durability while being integrated into standardized manufacturing processes to control complexity and cost.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The anchor and tool components may utilize composite material constructions combining different materials with complementary properties. This allows achieving the required strength and pressure resistance through material composition rather than requiring uniformly high-strength materials throughout, thereby reducing overall manufacturing complexity and cost while maintaining reliability in high-pressure environments.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS10422215B2Completion tool locating arrangement and method of positioning a tool within a completion structure
Publication Date: 2019.09.24 BAKER HUGHES CO
  • US10422215B2 patent drawing
  • US10422215B2 patent drawing

AI summary

A completion tool locating arrangement includes, an anchor attachable within a completion structure having a bore extending through the anchor, a seat disposed at the anchor receptive to a plug runnable thereagainst, and an attachment feature positioned at the anchor. The attachment feature is configured to allow at least one tool to be attached thereto for positioning the at least one tool with the anchor within the completion structure.