Sidetrack Zone Identification Using Cement Overlap Analysis

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Solution Overview

Problem

The existing manual process for identifying sidetrack zones in wellbores is time-consuming, prone to human error, and inefficient, particularly when analyzing multiple wellbores.

Innovation Solution

A method and system that utilize advanced algorithms and data-driven analytics to identify sidetrack zones by analyzing hole-casing data, completion data, and cementing data, allowing for rapid and precise identification of suitable sidetrack zones across multiple wellbores.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual analysis of drilling data is used to identify sidetrack zones, then the process allows for expert judgment and flexibility, but it is time-consuming and prone to human error

Engineering Contradiction:
Improveaccuracy of sidetrack zone identificationVSAvoidtime required to identify sidetrack zones
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical analysis process with an automated computer-based system that uses algorithms to process drilling data, hole-casing data, completion data, and cementing data. This substitution eliminates human error while maintaining expert-level judgment through programmed criteria, resolving the contradiction between reliability and time consumption.

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

Solution Approach 2:

The system enables self-service by automatically identifying sidetrack zones without requiring continuous human intervention. The computer-based system autonomously processes multiple data sources, applies filtering criteria, and generates results, dramatically reducing the time from hours to seconds while maintaining high accuracy through systematic data evaluation.

Inventive Principle:
Principle #25Self-service

2Productivity

If manual process is used for identifying sidetrack zones, then the methodology is simple and easy to understand, but the productivity is low when analyzing multiple wellbores

Engineering Contradiction:
Improvenumber of wellbores analyzed per unit timeVSAvoidcomplexity of the identification system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent creates a universal system that can analyze multiple wellbores simultaneously by integrating various data sources (drilling data, hole-casing data, completion data, cementing data) into a single platform. The system performs multiple functions including data collection, processing, filtering, and zone identification, enabling high productivity across numerous wellbores while managing complexity through integrated architecture.

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

Solution Approach 2:

The system segments the complex identification process into distinct modular components: data collection module, data processing module, filtering criteria application module, and zone identification module. This segmentation allows each component to handle specific tasks efficiently, improving overall productivity while making the complex system more manageable and maintainable.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If advanced algorithms and data-driven analytics are used to identify sidetrack zones, then the speed and precision are significantly improved, but the system complexity increases

Engineering Contradiction:
Improveprecision of sidetrack zone identificationVSAvoidcomplexity of the data processing system
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces simple manual evaluation with advanced algorithms and data-driven analytics that systematically process multiple data sources. These algorithms apply complex filtering criteria to hole-casing data, completion data, and cementing data to precisely identify sidetrack zones, achieving high measurement precision while managing system complexity through automated computational processes.

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

Solution Approach 2:

The system introduces an intermediary computational layer that bridges raw data and final zone identification. This intermediary processing layer applies algorithms and analytics to transform complex multi-source data into precise sidetrack zone recommendations, enhancing precision while containing complexity within the computational intermediary rather than requiring complex physical systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250092781A1System and method for determining sidetrack zones
Publication Date: 2025.03.20 SCHLUMBERGER TECH CORP
  • US20250092781A1 patent drawing
  • US20250092781A1 patent drawing
  • US20250092781A1 patent drawing

AI summary

A method of identifying sidetrack zones in an underground wellbore includes receiving hole-casing data, and determining one or more candidate sidetrack zones based on identifying cement overlap areas from the hole-casing data. The method further includes receiving completion data for one or more completion elements and determining a completion depth for each of the one or more completion elements based on the completion data. The method further includes selecting one or more sidetrack zones by filtering the one or more candidate sidetrack zones based on one or more of the completion depths.