Instrumented Shell for Top Drive Drilling Parameter Collection

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Solution Overview

Problem

Current drilling operations lack efficient and direct methods for collecting and analyzing drilling parameters in real-time, which hampers the optimization of drilling processes and decision-making during wellsite operations.

Innovation Solution

An instrumented shell is integrated with a top drive assembly, featuring a shell body with pockets for housing sensors and electronics, connected via a ruggedized interconnector cable, allowing for direct collection of drilling parameters and communication with a surface unit using antennas, enabling real-time data acquisition and analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sensing devices are provided to measure drilling parameters, then measurement capability is improved, but device complexity increases

Engineering Contradiction:
Improvedrilling parameters measurementVSAvoiddrilling assembly complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The instrumented shell is positioned within the top drive assembly, creating a nested configuration where the sensing system is housed inside the existing drilling equipment structure. This allows measurement capabilities to be added without significantly increasing the overall footprint or complexity of the drilling assembly.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The instrumented shell serves multiple functions: it houses sensors for measuring drilling parameters, provides structural support, and enables real-time data collection. By combining these functions into a single integrated component, the system achieves measurement capability without proportionally increasing device complexity.

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

2Productivity

If real-time data collection is implemented, then drilling efficiency is improved, but information loss is reduced

Engineering Contradiction:
Improvedrilling efficiencyVSAvoiddrilling parameters data
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The instrumented shell continuously collects drilling parameter data and transmits it in real-time to the surface, creating a feedback loop that enables operators to monitor and adjust drilling operations immediately. This real-time feedback prevents information loss and allows for timely decision-making to optimize drilling efficiency.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary data collection and analysis at the wellsite before decisions need to be made, allowing operators to have advance information about drilling conditions. This preliminary action ensures that no critical information is lost during the decision-making process.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If modular instrumented shell is used, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvecomponent replacementVSAvoidmodular system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The instrumented shell is designed as a modular, self-contained unit that can be independently installed, operated, and replaced within the top drive assembly. This segmentation allows for easy maintenance and component replacement without requiring complex disassembly of the entire drilling system, improving ease of operation despite the added modular complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3126607B1Modular instrumented shell for a top drive assembly and method of using same
Publication Date: 2020.01.15 NAT OILWELL VARCO LP
  • EP3126607B1 patent drawingFigure 1
  • EP3126607B1 patent drawingFigure 2A
  • EP3126607B1 patent drawingFigure 2B

AI summary

An instrumented shell for sensing drilling parameters of a drilling assembly positionable at a wellsite is provided. The drilling assembly includes a top drive assembly and a downhole tool. The instrumented shell includes a shell body, instruments and an interconnector. The shell body is positionable about the top drive assembly, and has pockets extending therein and a cover positionable about the shell body. The instruments include sensors, and are removably disposable in the pocket and sealable therein with the at least one cover. The interconnector includes a top drive connector removably connectable to the top drive assembly and a shell connector removably connectable to the shell body with a cable therebetween to pass signals therebetween whereby drilling parameters of the downhole tool may be directly collected.