Vibration-Based Borehole Data Transmission Mechanism

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Solution Overview

Problem

Current drilling technologies face challenges in efficiently communicating downhole sensor data to the surface, particularly in high-speed drilling operations, due to slow data transfer rates and limitations in mud pulse and electromagnetic methods, which hinder real-time geosteering and formation evaluation.

Innovation Solution

The implementation of a vibration-based communication system using a tunable frequency mechanism, comprising an anvil plate and encoder plate, which generates high-amplitude vibrations to transmit data and detect parameters like RPM and formation characteristics, enhancing data transfer rates and drilling efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If mud pulse or electromagnetic methods are used for data transmission, then data can be transmitted from downhole to surface, but data transfer rates are slow and real-time communication is hindered

Engineering Contradiction:
Improvedata transfer rateVSAvoidreal-time communication capability
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The patent uses mechanical vibrations generated by the drilling hammer to transmit data signals from downhole to surface. By modulating the vibration frequency or pattern in response to sensor measurements, the system achieves high-speed data transmission without requiring separate communication hardware, thereby resolving the contradiction between data transfer rate and real-time communication capability

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The drilling hammer serves dual functions: both drilling and data transmission. The same mechanical component that performs drilling automatically generates the vibration signals used for communication, eliminating the need for additional dedicated communication systems and enabling real-time data transfer at high speeds

Inventive Principle:
Principle #25Self-service

2Productivity

If high-speed drilling operations are conducted, then drilling efficiency increases, but data transfer rates become insufficient for real-time geosteering and formation evaluation

Engineering Contradiction:
Improvedrilling efficiencyVSAvoiddata transfer rate
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system leverages the high-frequency vibrations inherent in high-speed drilling operations to encode and transmit data. By modulating these vibrations based on sensor measurements, the system maintains high drilling efficiency while simultaneously achieving sufficient data transfer rates for real-time geosteering and formation evaluation

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The vibration-based communication system operates continuously during drilling without interruption. The drilling hammer generates vibrations throughout the drilling process, and these vibrations continuously carry data signals to the surface, ensuring that both drilling and communication occur simultaneously at full capacity

Inventive Principle:
Principle #20Continuity of useful action

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

This approach enables faster drilling and improved data transfer rates, allowing for real-time formation evaluation and geosteering, reducing static friction, and optimizing drilling performance by providing detailed formation data during high-speed operations.

Implementation Method 1

generates high-amplitude vibrations to transmit data and detect parameters like RPM and formation characteristics

Methodology Applied
Scientific EffectVibration: Vibration

Implementation Method 2

a vibration-based communication system using a tunable frequency mechanism, comprising an anvil plate and encoder plate, which generates high-amplitude vibrations to transmit data

Methodology Applied
Scientific EffectMechanical vibration: Vibration

Data Source

PatentUS11578593B2System and method for transmitting information in a borehole
Publication Date: 2023.02.14 HELMERICH & PAYNE TECH LLC
  • US11578593B2 patent drawing
  • US11578593B2 patent drawing
  • US11578593B2 patent drawing

AI summary

Systems and methods for producing controlled vibrations within a borehole. In one example, the system includes a movement mechanism and a controller. The movement mechanism is configured to enable translational movement of a first surface relative to a second surface to allow the first surface to impact the second surface to produce a plurality of beats. The frequency and amplitude of the beats may be selectively controlled by suppressing or dampening the beats. The controller is configured to selectively control an amplitude or frequency of the beats to encode information therein, where the amplitude of a beat may be selectively controlled by dampening or suppressing the impact of the first surface and the second surface.