Reactive Filter Material Sensors for Wellbore Analyte Detection
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Solution Overview
Problem
Current subterranean formation operations lack effective methods for detecting and removing deleterious analytes, such as mercury and hydrogen sulfide, from wellbore fluids, which can damage equipment and pose health and safety risks.
Innovation Solution
The use of reactive filter materials integrated into fluid flow lines, combined with detectors, to sorb and measure analytes like mercury and hydrogen sulfide, providing a built-in safety mechanism and enabling accurate analysis of wellbore fluids before they exit the formation tester.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reactive filter materials are integrated into fluid flow lines to sorb analytes, then equipment safety and operator protection are improved, but device complexity increases
Solution Approach 1:
The reactive filter material is integrated into the fluid flow line upstream of the equipment, performing the sorption action before the analytes can cause damage. This preliminary removal of harmful substances prevents equipment failure and protects operators, resolving the contradiction by embedding protection within the existing flow path rather than adding separate safety systems.
2Reliability
If reactive filter materials are used to remove deleterious analytes, then equipment damage is prevented, but fluid flow resistance increases
Solution Approach 1:
The reactive filter material utilizes a porous structure that provides extensive surface area for analyte sorption while maintaining adequate fluid flow pathways. The porous architecture allows harmful substances to be captured within the pore structure without creating excessive flow resistance, balancing equipment protection with fluid flow requirements.
3Measurement precision
If detectors are combined with reactive filter materials for analyte measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The detector is integrated directly with the reactive filter material, merging the separation function of the filter with the detection function of the sensor. This combination allows for precise measurement of analytes at the point where they are being removed, eliminating the need for separate sampling and analysis equipment, thus improving measurement precision while minimizing additional complexity.
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
This approach effectively removes deleterious analytes from wellbore fluids, preventing equipment damage and ensuring operator safety by sorbing them before the fluids reach the surface, allowing for accurate measurement and analysis, thereby enhancing the safety and efficiency of subterranean operations.
Implementation Method 1
reactive filter material, which sorbs an analyte in a wellbore fluid in a flow line of the formation tester
Implementation Method 2
reactive filter material, which sorbs an analyte in a wellbore fluid in a flow line of the formation tester
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The embodiments herein relate to sensors having reactive filter materials for detecting analytes in wellbores. The sensor includes at least one reactive filter material arranged in a flow line, wherein the reactive filter material sorbs an analyte in a wellbore fluid in the flow line; and at least one detector that detects a sorption signal specific to the analyte at at least a first location and a second location of the reactive filter material, wherein the first location is upstream in the flow line relative to the second location. The detector either (1) calculates a balanced measurement corresponding to the presence of the analyte in the wellbore or (2) relays the measurements to a signal processing unit to calculate a balanced measurement corresponding to the presence of the analyte in the wellbore.