Fluid Log for Hydrocarbon Ratio Analysis
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Solution Overview
Problem
Conventional methods for hydrocarbon extraction and analysis in subterranean drilling operations are time-consuming and prone to confusion due to the complexity of interpreting individual gas analysis plots, which hinders efficient optimization of drilling parameters and reservoir evaluation.
Innovation Solution
An apparatus and method that includes a sampling device for borehole fluid, an analysis unit to estimate hydrocarbon amounts, and a processing device to calculate and display hydrocarbon ratios, generating a fluid log that automatically indicates hydrocarbon types and permeability indices, facilitating real-time adjustments in drilling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional gas analysis plots are used for hydrocarbon extraction and analysis, then detailed gas composition data can be obtained, but the interpretation process becomes time-consuming and prone to confusion
Solution Approach 1:
The patent extracts and displays only the most critical information from complex gas analysis data - specifically hydrocarbon ratios and permeability indices - rather than presenting all raw gas composition data. This selective extraction maintains measurement precision for key parameters while dramatically reducing interpretation time by eliminating unnecessary data complexity
Solution Approach 2:
The patent segments the complex gas analysis interpretation process into distinct, easily interpretable components: hydrocarbon ratio calculations and permeability index determinations. By dividing the analysis into these discrete segments with clear visual indicators, the system maintains analytical precision while making the interpretation process more manageable and less confusing
2Quantity of substance
If individual gas analysis plots are used for reservoir evaluation, then comprehensive gas data can be collected, but the complexity of interpretation increases
Solution Approach 1:
The patent merges multiple gas analysis parameters into unified visual displays showing hydrocarbon ratios and permeability indices together. By combining related data elements into integrated visual representations, the system maintains comprehensive gas data collection while reducing interpretation complexity through unified, correlated presentation of multiple parameters
Solution Approach 2:
The patent transforms complex multi-parameter gas analysis data into visual displays that add a graphical dimension to the interpretation. By representing hydrocarbon ratios and permeability indices as visual indicators rather than raw numerical data, the system maintains comprehensive data collection while reducing interpretation complexity through enhanced visual perception
3Measurement precision
If detailed gas analysis is performed during drilling operations, then accurate hydrocarbon identification can be achieved, but the process hinders efficient optimization of drilling parameters
Solution Approach 1:
The patent performs preliminary calculations of hydrocarbon ratios and permeability indices directly from the gas analysis data as it is collected. By pre-processing the data into actionable insights before presentation to operators, the system maintains accurate hydrocarbon identification while enabling faster decision-making for drilling parameter optimization
Solution Approach 2:
The patent introduces hydrocarbon ratio and permeability index calculations as intermediary steps between raw gas analysis data and drilling decisions. These intermediaries translate complex gas composition data into simplified, actionable metrics that maintain identification accuracy while improving drilling optimization efficiency by providing clear guidance for parameter adjustments
Data Source
AI summary
An embodiment of an apparatus for estimating and displaying formation and formation fluid properties includes a sampling device coupled to borehole fluid, the borehole fluid including hydrocarbons released from a region of the formation surrounding an interval of the borehole. The apparatus also includes an analysis unit configured to analyze the sample of the borehole fluid at each of a plurality of sample times and estimate amounts of hydrocarbons in the borehole fluid, and a processing device configured to estimate one or more ratios of an amount of at least one hydrocarbon gas to an amount of at least another hydrocarbon gas at each sample time, analyze the one or more ratios to estimate a type of hydrocarbon fluid associated with the ratio, and automatically generate a fluid log that displays an indication of the type at each of the plurality of sample times.