Hydraulic Downhole Fluid Sampling for Multi-Chamber Collection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing downhole fluid sampling systems are limited by space constraints, making it difficult to scale up to collect multiple samples of formation fluid without additional electrical or mechanical components.
Innovation Solution
A downhole fluid sampling system with hydraulic actuation that uses a piston to advance a sampling unit between multiple sampling chambers, utilizing the pressure of formation fluid to actuate and collect samples, eliminating the need for duplicate electrical hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional electrical or mechanical components are added to collect multiple samples, then the number of samples collected increases, but the device complexity and space requirements increase
Solution Approach 1:
The sampling unit is designed to perform multiple functions: it can collect multiple samples sequentially using the same physical structure, and the hydraulic actuation system enables the sampling unit to move between different sampling chambers. This eliminates the need for duplicate electrical or mechanical components for each sample collection function.
Solution Approach 2:
The sampling unit is made movable rather than fixed, allowing it to be actuated by hydraulic pressure to move between different sampling chambers. This dynamic positioning enables a single sampling unit to collect multiple samples at different time points without requiring multiple static sampling chambers with separate actuation systems.
2Productivity
If additional electrical or mechanical components are added to collect multiple samples, then the number of samples collected increases, but the space required in the downhole tool increases
Solution Approach 1:
The sampling unit is designed to perform multiple functions: it can collect multiple samples sequentially using the same physical structure, and the hydraulic actuation system enables the sampling unit to move between different sampling chambers. This eliminates the need for duplicate electrical or mechanical components for each sample collection function.
Solution Approach 2:
The sampling unit is made movable rather than fixed, allowing it to be actuated by hydraulic pressure to move between different sampling chambers. This dynamic positioning enables a single sampling unit to collect multiple samples at different time points without requiring multiple static sampling chambers with separate actuation systems.
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
Enables the capture of multiple samples over a predefined time range, facilitating efficient monitoring of formation fluid properties by staggering sample collection without increasing hardware complexity.
Implementation Method 1
a piston actuatable on hydraulic fluid of the sampling system to advance the sampling unit by a predefined distance from the first position associated with the first sampling chamber to the second position associated with the second sampling chamber
Implementation Method 2
a spring positioned adjacent to the piston such that the piston compresses the spring when actuating on the hydraulic fluid. Once the piston is depressurized due to a lack of formation fluid entering the sampling system, spring force provided by the spring can return the piston to an initial position of the piston
Data Source
AI summary
A downhole fluid sampling system with hydraulic actuation can be used to collect one or more samples of formation fluid during a well operation. The sampling system can be within a downhole tool deployed in a wellbore of the well operation. Then sampling system then can collect a first sample from the flow of formation fluid from the wellbore using a first sampling chamber of a sampling unit in the sampling system. The sampling unit can define a set of sampling chambers including the first sampling chamber and a second sampling chamber. A piston of the sampling system that actuates on hydraulic fluid can advance the sampling unit by a predefined distance from a first position associated with the first sampling chamber to a second position associated with the second sampling chamber. Subsequently, the second sampling chamber can collect a second sample from the flow of formation fluid.