Wireline Drop-Off Tool for Memory Tool Deployment in Deviated Wells
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Solution Overview
Problem
Deploying memory tools in wells, especially in deviated or horizontal sections, is challenging due to difficult access and detrimental well conditions, which hinders the effective deployment and retrieval of these tools.
Innovation Solution
A system and method involving a landing ring assembly and a wireline drop-off tool with a landing collar and coupling member, allowing memory tools to be deployed and retrieved through a drill pipe, with the option of using a tractor for traversing complex bore sections, enabling data logging and retrieval in deviated or horizontal wells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If memory tools are deployed through drill pipe using gravity or hydraulic pressure, then deployment is possible in vertical wells, but deployment fails or becomes highly difficult in deviated or horizontal well sections
Solution Approach 1:
A wireline is introduced as an intermediary element to deploy and retrieve the memory tool. The wireline passes through the drill pipe and connects to the tool, allowing controlled deployment and retrieval without relying on gravity or hydraulic pressure alone. This intermediary mechanism enables operation in both vertical and deviated/horizontal well sections.
Solution Approach 2:
The system transitions from static deployment methods (gravity-based or pressure-based) to a dynamic retrieval method using wireline. The wireline allows the tool to be actively positioned and retrieved regardless of well orientation, making the system adaptable to varying well geometries and conditions.
2Productivity
If memory tools are left in the well after logging, then retrieval is avoided, but data security and tool recovery become problematic
Solution Approach 1:
The wireline serves as a reliable intermediary connection that allows the tool to be securely retrieved from the well. This ensures both tool recovery and data security while maintaining logging operation efficiency, eliminating the need to leave tools in the well.
Solution Approach 2:
The system enables self-service retrieval where the wireline can be used to pull the tool back to surface after logging is complete, ensuring tool recovery and data security without requiring additional intervention or leaving the tool abandoned in the well.
3Adaptability or versatility
If wireline is used to deploy and retrieve memory tools, then adaptability to deviated wells improves, but system complexity and operation time increase
Solution Approach 1:
The wireline system serves multiple functions: it deploys the tool through the drill pipe, positions the tool at the desired depth, enables data transmission, and retrieves the tool after logging. This multi-functionality reduces the need for separate specialized equipment for each operation, thereby limiting the increase in system complexity.
Solution Approach 2:
The wireline is prepared and positioned in advance before tool deployment. The system is pre-configured with the wireline already in place within the drill pipe, allowing rapid tool deployment and retrieval without requiring complex on-site assembly or configuration during the logging operation.
4Device complexity
If traditional deployment methods are used, then equipment simplicity is maintained, but friction in deviated sections prevents tool movement
Solution Approach 1:
The wireline acts as a mediator that transmits force directly to the tool, allowing controlled movement through the drill pipe regardless of friction in deviated sections. This intermediary mechanism provides the necessary force to overcome friction without requiring complex deployment equipment.
Solution Approach 2:
The system replaces gravity-based mechanical deployment with wireline-based mechanical retrieval. The wireline provides direct mechanical force control to move the tool through the drill pipe, overcoming friction in deviated sections without relying on the simplicity of gravity-based systems that fail in such conditions.
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 efficient deployment and retrieval of memory tools in challenging well conditions, allowing for effective data logging and retrieval, even in deviated or horizontal sections, by using a wireline drop-off system that engages a landing ring assembly and utilizes a tractor for overcoming frictional hindrances.
Implementation Method 1
utilizes a tractor for overcoming frictional hindrances
Data Source
AI summary
Memory tool deployment method, system, and apparatus include a landing ring fit on a pipe deployed in a well. A drop-off tool has a landing collar and has a tool string with one or more memory tools. The drop-off tool is connected to a wireline and is deployed through the pipe in the well with the wireline. The drop-off tool is landed on the landing ring on the pipe so that the memory tools extend beyond the pipe. The wireline is released from the drop-off tool and is removed from the pipe so that logging operations can be performed. After logging, the wireline is redeployed in the pipe in the well and is reconnected to the drop-off tool to retrieve the memory tools from the pipe.