Wireline Telemetry Signal Multiplexing for Concurrent Tool Control

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Solution Overview

Problem

Incompatible telemetry systems used by conveyance and measurement service companies require detachment of one system during operation, limiting simultaneous operation of propulsion devices and measurement tools in wells.

Innovation Solution

A method for preparing a combined digital signal that multiplexes control data for conveying the wireline with telemetry data for measurement tools, using techniques like modulation, demodulation, and multiplexing to enable simultaneous transmission over a wireline.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If incompatible telemetry systems are used by conveyance and measurement service companies, then each system can operate independently with its own protocols, but simultaneous operation is limited requiring detachment of one system

Engineering Contradiction:

Improvetelemetry system compatibilityVSAvoidsimultaneous operation capability

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent employs a telemetry interface as an intermediary device that translates between incompatible telemetry protocols. This interface converts signals from one telemetry system format to another, enabling both conveyance and measurement systems to operate simultaneously without requiring direct compatibility between them. The intermediary handles protocol conversion, allowing independent systems to communicate through a standardized intermediate format.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes parameter changes in signal characteristics to enable protocol conversion. By modifying signal parameters such as frequency, amplitude, or timing characteristics during transmission through the telemetry interface, the system adapts incompatible telemetry formats to work together. This allows the same physical wireline to carry multiple telemetry protocols with different parameter specifications.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If one telemetry system is detached during operation, then system incompatibility is avoided, but real-time control of both propulsion and measurement tools is lost

Engineering Contradiction:

Improvesystem operation stabilityVSAvoidcontrol interruption time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent ensures continuous operation of both telemetry systems by implementing simultaneous signal transmission through the wireline. The telemetry interface maintains continuous translation between protocols, eliminating the need to detach or disable either system. Both conveyance control signals and measurement telemetry data flow continuously through the same physical medium without interruption.

Inventive Principle:

Principle #20Continuity of useful action

3Adaptability or versatility

If separate telemetry systems are used for conveyance and measurement, then each system maintains its own control protocols, but communication path switching is required

Engineering Contradiction:

Improveprotocol independenceVSAvoidcommunication path management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple telemetry communication paths into a single unified interface. Instead of requiring separate physical connections or switching between different communication routes, the telemetry interface combines conveyance and measurement telemetry signals into one integrated communication path through the wireline. This consolidation simplifies the overall system architecture while maintaining protocol independence.

Inventive Principle:

Principle #5Merging (Combining)

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

Enables simultaneous operation of incompatible telemetry systems, allowing real-time measurement and conveyance control, enhancing data acquisition and tool operation efficiency in wells.

Implementation Method 1

using techniques like modulation, demodulation, and multiplexing to enable simultaneous transmission over a wireline

Methodology Applied

Scientific EffectModulation: Phase Modulation

Implementation Method 2

The digital communication data is encoded by one of the telemetry units to form a bandwidth limited electric signal which is transferred via the wireline to the other telemetry unit

Methodology Applied

Scientific EffectElectrical signal transmission: Conduction (electrical)

Data Source

PatentUS12428953B2Method of preparing a first combined digital signal to be transmitted along a wireline deployed in a well, and method of preparing and transmitting telemetry data along a wireline deployed in a well

Publication Date: 2025.09.30 ALTUS INTERVENTION TECH AS

AI summary

Disclosed is a method of preparing a first combined digital signal to be transmitted along a wireline deployed in a well. The first combined digital signal is for controlling a wireline conveying system and a measurement tool. The method includes converting a first telemetry signal to form a digitized telemetry signal, the first telemetry signal comprising control data for measurement tool; providing a control data for controlling the wireline conveying system; and transferring the digitized telemetry signal and the control data to a unit for processing data, the unit forming the first combined digital signal by multiplexing the transferred signal and data. Also disclosed is a method of preparing and transmitting telemetry data along a wireline, the method includes the previous steps and further: modulating the first combined digital signal to form a modulated signal; and transmitting the modulated signal from one end of the wireline to another.