Downhole Fluid Sampling System for Real-Time Asphaltene Analysis
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Solution Overview
Problem
Current technologies are unable to identify asphaltenes in wellbore fluids during downhole operations, limiting the effectiveness and timeliness of determining asphaltene properties, which affects reservoir production and requires laboratory analysis.
Innovation Solution
The development of a downhole fluid sampling system equipped with sensors and a fluid analysis module that can analyze wellbore fluids in real-time, allowing for the construction of an asphaltene onset pressure map and enabling remediation operations without laboratory intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If laboratory analysis is used to identify asphaltenes in wellbore fluids, then measurement precision is improved, but loss of time increases and productivity decreases
Solution Approach 1:
The patent replaces the mechanical/laboratory-based analysis system with a downhole electronic detection system. The fluid analysis module uses sensors and processors to detect asphaltene properties directly in the wellbore, substituting the traditional mechanical laboratory process with an electronic measurement system that provides real-time data without requiring physical sample transport and manual analysis.
Solution Approach 2:
The patent introduces a downhole fluid analysis module as an intermediary between the reservoir fluid and the surface laboratory. This intermediate device performs preliminary detection and analysis downhole, providing real-time asphaltene property data that would otherwise require lengthy laboratory processing, thus reducing time loss while maintaining measurement precision.
2Measurement precision
If laboratory analysis is used to determine asphaltene properties, then measurement precision is improved, but productivity decreases
Solution Approach 1:
The patent performs preliminary detection and analysis of asphaltene properties downhole before the fluid reaches the surface. By conducting the measurement action in advance at the wellbore location, the system enables timely remediation planning and prevents asphaltene-related production issues, thereby improving reservoir productivity while maintaining measurement precision through the fluid analysis module.
Solution Approach 2:
The patent replaces the productivity-reducing laboratory analysis system with a downhole electronic detection system. The fluid analysis module provides real-time asphaltene property data that enables immediate production decisions and remediation actions, eliminating the time delay and productivity loss associated with traditional laboratory-based determination methods.
3Loss of time
If downhole fluid analysis is implemented, then loss of time is reduced and productivity is improved, but device complexity increases
Solution Approach 1:
The patent implements a multi-functional downhole fluid analysis module that performs multiple operations: detecting fluid samples, analyzing asphaltene properties, transmitting data, and supporting remediation decisions. By consolidating these functions into a single integrated device, the system reduces time loss and improves productivity while managing device complexity through functional integration rather than separate components.
Solution Approach 2:
The patent nests the fluid analysis module within the existing downhole toolstring or wellbore infrastructure. The analysis device is integrated into the broader wellbore system, utilizing existing power, communication, and fluid handling capabilities. This nesting approach minimizes the addition of complex external systems while enabling real-time asphaltene property determination that reduces time loss and improves productivity.
Data Source
AI summary
A downhole fluid sampling tool comprising one or more probes configured to take at least one fluid sample from the wellbore and perform a Saturates, Aromatics, Resins, Asphaltenes (SARA) analysis on the at least one fluid sample. Additionally, the downhole fluid sampling tool comprises an information handling system for developing a first remediation operation based at least in part on the first SARA analysis and performing the first remediation operation on the first fluid sample to form a first remediated fluid sample.