Pipe Conveyed Logging Data Retrieval via Drill Pipe

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current drill pipe conveyed logging tools face challenges in tough logging conditions, such as wellbores with inclinations greater than 60 degrees, where conventional wireline cable deployment is unsuitable, and require time-consuming retrieval of data from downhole memory logging tools, posing risks and inefficiencies.

Innovation Solution

A pipe conveyed well logging assembly that includes a memory logging tool protected within a carrier assembly, allowing deployment and data collection in tough logging conditions, with a mechanical means for conveyance and remote data recovery, using a valve assembly to manage pressure differentials and a fishing tool for data retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If drill pipe conveyed memory logging tools are used in tough logging conditions, then the ability to log in high inclination wellbores is improved, but the time required to retrieve and recover data increases significantly

Engineering Contradiction:

Improveability to log in high inclination wellboresVSAvoidtime required to retrieve and recover data

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent extracts the data retrieval function from the physical tool retrieval process. By enabling data to be transmitted from the downhole memory logging tool to the surface via the drill pipe while the tool remains in the wellbore, the system separates data recovery from tool retrieval, eliminating the need to fish out the entire logging assembly to access the collected data.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary data transmission system that uses the drill pipe as a conduit for transferring data from the downhole memory tool to the surface. This intermediary mechanism allows data to travel through the drill pipe wall or annulus, serving as a bridge between the isolated downhole environment and the surface without requiring physical tool retrieval.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If wireline cable deployment is used in conventional wellbores, then data retrieval is straightforward, but the method is unsuitable for wellbores with inclinations greater than 60 degrees

Engineering Contradiction:

Improveease of data retrievalVSAvoidsuitability for high inclination wellbores

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent makes the drill pipe a multi-functional tool by using it not only for mechanical conveyance of the logging tool into the wellbore but also as a data transmission medium. This universal use of the drill pipe for both deployment and data retrieval eliminates the need for separate wireline cable systems, making the method adaptable to high inclination wellbores while maintaining data retrieval capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS7874359B2Methods of retrieving data from a pipe conveyed well logging assembly

Publication Date: 2011.01.25 SCHLUMBERGER TECH CORP

AI summary

A method of performing a pipe conveyed well logging operation is provided that includes providing a pipe conveyed well logging assembly having a pipe string, a memory logging tool and a memory module; deploying the assembly into a wellbore; operating the memory logging tool to perform a logging operation to obtain logging data from the wellbore; and retrieving the obtained logging data prior to withdrawing the pipe string from the wellbore.