Wireline Tension Profile Analysis for Deep Wells
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Solution Overview
Problem
Current wireline operations in the drilling industry face challenges in assessing and executing operations in wells with extreme lengths and complex trajectories, leading to potential damage or breaking of wirelines due to inadequate tension control during deployment and retrieval.
Innovation Solution
A method and system for operating a wireline winch that calculates and presents a total cumulative surface wireline tension limit as a function of depth, combining downhole and surface equipment data to optimize tension management, reducing the risk of wireline damage or breakage by assessing operating tension values against cumulative limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireline operations are performed in wells with extreme lengths and complex trajectories, then the ability to access remote formations is improved, but the risk of wireline damage or breaking increases due to inadequate tension control
Solution Approach 1:
The system performs preliminary calculations of cumulative surface wireline tension limits as a function of depth before actual wireline deployment. By pre-determining the tension limits based on downhole tool weight, wireline properties, and borehole geometry, the operator can plan the wireline operation in advance and adjust deployment parameters to stay within safe tension thresholds, thereby preventing wireline damage before it occurs.
Solution Approach 2:
The system provides continuous feedback by calculating and presenting cumulative surface wireline tension limits as a function of depth during the wireline operation. This real-time tension monitoring enables the operator to adjust winch operations dynamically, comparing actual tension against calculated limits and making corrections to maintain wireline integrity throughout the deployment and retrieval process.
2Reliability
If real-time tension monitoring is implemented throughout the wireline, then wireline safety is improved, but the complexity of the operation increases
Solution Approach 1:
The system combines multiple functions into a single integrated solution: it calculates downhole tool weight, determines wireline properties, computes cumulative surface tension limits as a function of depth, and presents this information in a unified format. This multi-functional approach consolidates what would otherwise require multiple separate calculations and tools, reducing operational complexity while maintaining comprehensive tension monitoring.
Solution Approach 2:
The system automatically performs all necessary calculations of cumulative surface wireline tension limits based on input parameters such as downhole tool weight, wireline properties, and borehole geometry. Rather than requiring the operator to manually perform complex calculations or interpret multiple separate data sources, the system self-generates the tension limit profile and presents it in an easily interpretable format, reducing the cognitive and operational burden on the operator.
Data Source
AI summary
A method for operating a wireline winch configured to convey a wireline coupled to a downhole tool disposed in a borehole penetrating the earth includes: receiving a first cumulative surface wireline tension limit for downhole wireline components; calculating a second cumulative surface wireline tension limit for surface components using wireline speed and surface equipment data; combining the first and the second cumulative surface wireline tension limits to provide a total cumulative surface wireline tension limit as a function of depth; presenting the total cumulative surface wireline tension limit as a function of depth and operating wireline tension values as a function of depth for the downhole tool to a user; performing an assessment of the operating wireline tension values as a function of depth versus the total cumulative surface wireline tension limit as a function of depth; and operating the wireline winch using the assessment and a winch controller.