Combo Tool for Sampling While Logging
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Solution Overview
Problem
Conventional methods in the oil and gas industry require separate runs for production logging and fluid sampling operations, leading to reduced operational efficiency and increased costs due to the need for multiple interventions and longer operational times.
Innovation Solution
A sample while logging tool that combines fluid sampling and production logging capabilities, featuring a sample collector sub with a piston to collect fluid samples and sensors to measure downhole conditions, allowing for simultaneous data collection and sample acquisition during a single run.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If production logging and fluid sampling are conducted separately using conventional methods, then each operation can be performed with dedicated tools, but operational time increases and operational efficiency decreases
Solution Approach 1:
The patent combines production logging tools and fluid sampling tools into a single integrated bottom hole assembly. The logging section includes sensors for measuring downhole conditions while the sampling section includes a sample chamber and piston mechanism for collecting fluid samples. This merging allows both operations to be performed simultaneously during a single intervention, eliminating the need for separate runs and reducing total operational time while maintaining data accuracy through dedicated functional components.
Solution Approach 2:
The bottom hole assembly is designed as a universal tool that performs multiple functions: production logging (measuring pressure, temperature, flow rates) and fluid sampling (collecting and sealing reservoir samples). The tool string can be configured with various sensor subs and sampling mechanisms to handle different operational requirements, making it a multi-functional device that replaces multiple specialized tools while maintaining the reliability of each specific function.
2Adaptability or versatility
If separate production logging runs and fluid sampling runs are conducted, then specialized tools can be used for each operation, but the number of interventions increases and costs increase
Solution Approach 1:
The patent merges production logging capabilities and fluid sampling capabilities into a single bottom hole assembly that can be deployed in one intervention. The tool string includes a logging section with various sensors and a sampling section with sample chambers, allowing both operations to be performed simultaneously. This eliminates the need for multiple separate interventions, reducing operational costs and improving productivity while maintaining the adaptability to perform both functions with specialized components.
3Quantity of substance
If multiple interventions are conducted for separate logging and sampling operations, then comprehensive data can be collected, but operational complexity and risk increase
Solution Approach 1:
The patent combines multiple operational functions into a single integrated tool string that performs both production logging and fluid sampling during one intervention. The bottom hole assembly includes a logging section with sensors for measuring downhole parameters and a sampling section with sample chambers and pistons for collecting fluid samples. This merging reduces operational complexity by eliminating the need for multiple separate interventions while maintaining comprehensive data collection capabilities through dedicated functional components.
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 integrated approach reduces operational time and costs by enabling simultaneous sampling and logging, providing accurate and timely data for improved well management and reducing the need for multiple interventions.
Implementation Method 1
form a differential pressure between an atmospheric pressure in the sample chamber and a bottomhole pressure in the wellbore
Data Source
AI summary
A sample while logging tool for downhole fluid sampling and production logging may include a sample collector sub and a sensor sub. The sample collector sub may include a body defining a bore extending from a first end to a second end. One or more sample chambers may be housed in the bore. The sample chamber may collect a fluid sample. At least one probe may be coupled to the sample chamber to measure fluid properties of the collected fluid sample within the sample chamber and transmit the fluid properties. A piston may be coupled to the first end having a gate distal to the first end. The piston may be actuated to open and close an opening of the sample chamber. Additionally, the sensor sub may measure and transmit data on fluids within a well to form production logging data.