Compact Hydrocarbon Analysis System for Rock Samples
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Solution Overview
Problem
Current devices for analyzing hydrocarbons in rock samples from oil drilling sites are bulky, requiring expert operation and resulting in delayed analysis, making it impossible to use them in mobile laboratories or under difficult environmental conditions, and they cannot efficiently measure both total and fractioned hydrocarbons in a timely manner.
Innovation Solution
A compact, automated system that measures total and fractioned hydrocarbons in rock samples using a pyrolysis oven and gas chromatograph, capable of operating under difficult conditions, with a non-specialist operator, and providing rapid results through controlled heating and separation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional hydrocarbon analysis devices are used, then measurement precision and reliability are maintained, but device size becomes excessive and portability is lost
Solution Approach 1:
The device is divided into functionally independent modules: injection module, pyrolysis module, separation module, and detection module. Each module performs a specific function and can be optimized independently, allowing the overall device to be compact while maintaining measurement precision through specialized design of each segment.
Solution Approach 2:
Multiple functional components are integrated into a unified compact system. The injection needle, pyrolysis chamber, separation column, and detector are merged into a single integrated device that fits within a portable framework, eliminating the need for large separate equipment while maintaining analysis capabilities.
2Productivity
If traditional analysis systems are deployed, then comprehensive hydrocarbon analysis is achieved, but analysis time becomes excessively long
Solution Approach 1:
The device performs preliminary heating and desorption of hydrocarbons from the rock sample before formal analysis begins. This preliminary action pre-concentrates and prepares the hydrocarbon compounds, so that when the actual measurement starts, the analysis is completed much faster because the samples are already in an optimal state for detection.
Solution Approach 2:
The pyrolysis and separation processes operate continuously without interruption. The injection module continuously introduces processed samples into the detection system, and the detector continuously monitors hydrocarbon concentrations, eliminating idle time between measurement steps and maximizing analysis throughput.
3Ease of operation
If automated operation is implemented, then ease of operation for non-specialists is improved, but device complexity increases
Solution Approach 1:
The device incorporates self-calibration and self-diagnosis capabilities. The system automatically adjusts its parameters and compensates for drift without requiring expert intervention. This self-service feature simplifies operation for non-specialists while the underlying automation complexity is managed by embedded control systems that handle the sophisticated functions autonomously.
4Adaptability or versatility
If portable design is achieved, then adaptability to difficult environmental conditions is improved, but measurement reliability may be compromised
Solution Approach 1:
The device creates and maintains an inert atmosphere within its sealed chambers during sample processing and analysis. This controlled inert environment protects against contamination and oxidation that could affect measurement reliability, while the compact sealed design enables portability to field conditions without compromising the stability of the measurement environment.
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 rapid, reliable analysis of hydrocarbons in rock samples, allowing for immediate decision-making in drilling operations and operation in challenging environments, with reduced size and operator expertise requirements.
Implementation Method 1
The remaining part of hydrocarbon modules obtainable from the sample, which can be obtained from the transformation of organic matter or kerogen, needs a further supply of heat in order to generate hydrocarbons
Implementation Method 2
a separation means, preferably suitable for separating a hydrocarbon mixture released by said sample
Implementation Method 3
In order to be analysed, the molecules of hydrocarbons already present in the rock sample, need only be desorbed by the same by means of an appropriate supply of heat in an inert environment
Data Source
AI summary
A system of analysis operating preferably on a sample of rock derived from oil drilling in a site situation and possibly under difficult environmental conditions, which allows the total quantity of hydrocarbons contained in said sample to be measured, both already present and generable following transformation of organic matter contained in the same sample, in the first case also allowing a quantity of each single hydrocarbon species to be measured.