Flow Electrification Sensor for Water Zone Detection
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Solution Overview
Problem
In the oil and gas industry, it is challenging to efficiently separate water from hydrocarbons in produced fluids, leading to increased production costs, as existing methods lack effective means to predict and mitigate water migration into hydrocarbon production streams.
Innovation Solution
The use of flow electrification sensors that leverage the triboelectric effect to measure electrical conductivity of fluids, allowing for the differentiation between aqueous-based and hydrocarbon-based compositions, and enabling the identification of water-producing zones for targeted remediation operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional separation methods are used to separate water from hydrocarbons, then separation can be achieved, but production costs increase significantly due to downstream handling and disposal
Solution Approach 1:
The flow electrification sensor performs preliminary detection of water in the production stream at the well site, enabling early identification of water-producing zones before significant water accumulation occurs. This allows proactive remediation operations to be planned and executed, preventing the need for expensive downstream separation and disposal operations.
Solution Approach 2:
The patent introduces flow electrification sensors as an intermediary detection mechanism between the formation and the production stream. These sensors use the triboelectric effect to detect fluid composition and conductivity, providing real-time information about water presence without requiring physical separation or complex analysis of the produced fluids.
2Reliability
If downstream separation operations are performed to remove water from hydrocarbons, then a valuable hydrocarbon stream can be produced, but significant expenses are incurred for handling, separating, and disposal
Solution Approach 1:
The flow electrification sensor enables preliminary identification of water-producing zones at the well site, allowing remediation operations to be performed before water accumulates to levels requiring expensive downstream separation and disposal operations.
Solution Approach 2:
The sensor provides real-time feedback on fluid composition and water presence in the production stream. This feedback loop enables operators to monitor water production continuously and respond promptly by initiating remediation operations when water thresholds are exceeded, preventing costly downstream handling.
3Productivity
If remediation operations are performed to seal water-producing zones, then water production can be reduced, but the ability to identify and target specific zones is currently limited
Solution Approach 1:
The flow electrification sensor acts as an intermediary detection device positioned at the well site that directly measures fluid properties in the production stream. By detecting electrical conductivity and using the triboelectric effect, the sensor provides direct information about water presence and zone productivity, enabling precise identification and targeting of water-producing zones for remediation.
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 reduction of water production by identifying and addressing water-producing zones, thereby maximizing hydrocarbon production and minimizing costs associated with handling and disposing of produced water.
Implementation Method 1
the flow electrification sensor utilizes a triboelectric effect to measure the electrical conductivity of a fluid
Data Source
AI summary
Flow electrification sensors and methods relating thereto may be useful in characterizing fluids, especially the in situ characterization of fluids produced during oil and gas production operations. A system may include a flow path; a flow electrification sensor at least partially contained within the flow path, the flow electrification sensor comprising a static charge accumulator and an insulator arranged such that the static charge accumulator interacts with a fluid in the flow path; a reference sensor; and a signal processor communicably coupled to the flow electrification sensor and the reference sensor.