Downhole Tool Sensor Load Control

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Solution Overview

Problem

Existing drilling systems face challenges in monitoring and controlling the integrity of downhole components due to environmental factors such as mechanical loads, heat, pressure, and corrosive drilling fluids, which can degrade tools and reduce their effective life cycles.

Innovation Solution

A system comprising a downhole tool with sensors for measuring physicochemical properties, a processor to monitor and adjust loads, and a method for providing real-time information and adjusting drilling parameters, including the ability to shut down the system when thresholds are exceeded, to maintain the integrity of downhole components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If drilling operations continue under harsh environmental conditions, then productivity is maintained, but tool reliability deteriorates due to mechanical loads, heat, pressure, and corrosive fluids

Engineering Contradiction:
Improvedrilling operation continuityVSAvoidtool integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system performs preliminary monitoring of physicochemical properties (temperature, pressure, corrosion indicators) before critical damage occurs. Sensors detect environmental conditions in advance, allowing the control system to adjust drilling parameters or shut down proactively to prevent tool failure, thus maintaining productivity while protecting tool integrity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors physicochemical properties of the drilling environment and feeds this information back to the control system. Based on this feedback, the system automatically adjusts drilling parameters (weight on bit, rotational speed, fluid flow) to maintain optimal conditions that preserve tool reliability while sustaining drilling operations.

Inventive Principle:
Principle #23Feedback

2Reliability

If real-time monitoring and control systems are implemented, then tool reliability is improved, but device complexity increases

Engineering Contradiction:
Improvedownhole component integrityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The downhole tool integrates multiple functions into a single device: drilling operations, physicochemical sensing (temperature, pressure, corrosion detection), data processing, and automated control. This multi-functionality reduces the need for separate monitoring equipment and simplifies the overall system architecture while maintaining high reliability through comprehensive real-time monitoring.

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

3Duration of action of stationary object

If drilling parameters are adjusted frequently to control loads, then tool life is extended, but productivity decreases

Engineering Contradiction:
Improvetool life cycleVSAvoiddrilling rate
Core Design Contradiction:
Duration of action of stationary objectVSProductivity

Solution Approach 1:

The system dynamically adjusts drilling parameters based on real-time monitoring of physicochemical conditions. Rather than frequent arbitrary adjustments, the system optimizes parameters (weight on bit, rotational speed, feed rate) in response to actual environmental feedback, extending tool life by operating within optimal load ranges while minimizing interruptions to maintain drilling progress.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8413744B2System and method for controlling the integrity of a drilling system
Publication Date: 2013.04.09 BAKER HUGHES CO
  • US8413744B2 patent drawing
  • US8413744B2 patent drawing
  • US8413744B2 patent drawing

AI summary

A system for monitoring and controlling a load on a downhole component of a well drilling system is disclosed. The system includes: a downhole tool disposed in a drillstring and configured to be movable within a borehole, the drillstring configured to allow a drilling fluid to be advanced therethrough and into the borehole; at least one sensor disposed within the downhole tool for in-situ measurement of at least one physicochemical property of an environment surrounding the downhole tool; and a processor configured to monitor the at least one physicochemical property and at least one of i) provide physicochemical property information to a user during a drilling/steering operation, ii) adjust a load on the downhole component based on the environment information and iii) shut down the system in response to a detection of a measured physicochemical property beyond a selected threshold.