Modular Downhole Tool Control for Position-Independent Reconfiguration

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Solution Overview

Problem

Conventional downhole evaluation systems lack modularity, requiring specific design and engineering for each combination and positioning of actuatable components, limiting flexibility and reconfigurability, and necessitating complete redesign for component swaps or rearrangements.

Innovation Solution

A modular downhole evaluation system with a universal control module and circuit that allows connection and control of actuatable modules irrespective of their relative positioning, enabling reconfiguration and simplifying communication through acoustic or hydraulic signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional downhole evaluation systems use fixed design for each combination of actuatable components, then system reliability is maintained, but device complexity increases and adaptability decreases

Engineering Contradiction:
ImprovereconfigurabilityVSAvoiddesign complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The downhole evaluation system is divided into separate actuatable modules (e.g., circulation valve module, isolation valve module, tester valve module) that can be independently selected and positioned. Each module functions independently while connecting to a common control circuit, allowing the system to be reconfigured by changing module combinations without redesigning the entire system architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A universal control circuit is designed to accommodate multiple types of actuatable modules regardless of their specific functions or relative positions. The control circuit uses universal acoustic signal transmission and hydraulic actuation mechanisms that work across all module types, eliminating the need for bespoke control designs for each module configuration.

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

2Productivity

If conventional systems require complete redesign for component swaps, then manufacturing precision is maintained, but loss of time increases and productivity decreases

Engineering Contradiction:
Improvereconfiguration speedVSAvoidredesign time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

By segmenting the system into interchangeable modules with standardized connection interfaces, components can be swapped and repositioned without affecting the overall system architecture. This modular approach allows rapid reconfiguration by simply changing which modules are connected to the universal control circuit, eliminating time-consuming complete redesigns.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system is designed to be dynamically reconfigurable rather than statically fixed. The universal control circuit can adapt to different module arrangements in real-time through acoustic signal communication, allowing the system to transition between configurations without physical redesign or lengthy setup procedures.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If conventional systems use position-dependent control circuits, then manufacturing precision is maintained, but adaptability decreases and device complexity increases

Engineering Contradiction:
Improveposition independenceVSAvoidcircuit complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control circuit replaces traditional position-dependent electrical or mechanical signaling with acoustic signal transmission through the wellbore fluid. This acoustic field-based communication allows the universal control circuit to reach any actuatable module regardless of its position in the wellbore, eliminating the need for position-specific wiring or signaling mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The universal control circuit is designed to communicate with and control any actuatable module type through standardized acoustic signals and hydraulic actuation. This universal interface works whether modules are positioned at the bottom, middle, or top of the wellbore, providing position-independent control without requiring complex position-dependent circuitry for each configuration.

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

Facilitates flexible assembly and operation of downhole systems with any combination and arrangement of components, reducing the need for bespoke designs and simplifying communication, thus enhancing operational efficiency and cost-effectiveness.

Implementation Method 1

simplifying communication through acoustic or hydraulic signals

Methodology Applied
Scientific EffectAcoustic signal transmission: Sound

Implementation Method 2

communicating a first actuation signal via a universal control circuit connecting the universal control module to a first actuatable downhole module and to a second actuatable downhole module

Methodology Applied
Scientific EffectHydraulic actuation: Hydraulic Press

Data Source

PatentUS20260028908A1Modular downhole testing tool
Publication Date: 2026.01.29 SCHLUMBERGER TECH CORP
  • US20260028908A1 patent drawing
  • US20260028908A1 patent drawing
  • US20260028908A1 patent drawing

AI summary

A downhole evaluation device includes a first actuatable downhole module, a second actuatable downhole module, and a universal control circuit. The universal control circuit has a first circuit path and a second circuit path, wherein the first circuit path connects to the first actuatable downhole module and the second circuit path connects to the second actuatable downhole module irrespective of a relative positioning of the first actuatable downhole module and the second actuatable downhole module. A universal control module is connected to the universal control circuit for selectively controlling an actuation of the first actuatable downhole module and the second actuatable downhole module.