Wireline Milling Bailer With Integrated Debris Circulation
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Solution Overview
Problem
Existing combination tools for milling and debris collection in oilfield operations are excessively long and heavy, making them difficult to deploy on a wireline, and are overly complex, requiring specialized bailers and additional moving parts.
Innovation Solution
A device that integrates milling and debris collection functions using a single geartrain, which includes a motor, a gear train with two rotational outputs of different speeds, a fluid pump connected to both outputs, and a milling bailer that rotates with the pump housing, allowing for simultaneous milling and debris collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If milling and debris collection devices are combined, then milling efficiency and debris removal capability are improved, but tool length and weight increase excessively
Solution Approach 1:
The patent combines the milling device and debris collection device into a single integrated tool assembly. The milling bit is positioned at the distal end of the bailer, allowing both milling and debris collection functions to be performed simultaneously by one tool rather than requiring separate tools, thereby improving productivity without proportionally increasing length.
Solution Approach 2:
The milling bit is nested within or integrated with the bailer structure. The bailer housing contains the pumping mechanism, and the milling bit is positioned at the distal end, effectively nesting the milling function within the overall bailer assembly. This nested configuration reduces the total tool length compared to having two separate tools.
2Productivity
If milling and debris collection devices are combined, then milling efficiency and debris removal capability are improved, but tool weight increases excessively
Solution Approach 1:
By merging the milling device and debris collection device into a single integrated tool, the patent eliminates the need for two separate heavy tools. The combined tool performs both functions simultaneously, improving productivity while the weight increase is minimized through shared structural components and efficient space utilization.
Solution Approach 2:
The integrated tool assembly provides multiple functions (milling and debris collection) in a single device. The bailer structure serves both as the housing for the pumping mechanism and as the structural support for the milling bit, making the tool multi-functional and reducing overall weight compared to two separate specialized tools.
3Adaptability or versatility
If integrated combination tools are produced with specialized bailers and additional moving parts, then milling and debris collection functions are achieved, but device complexity increases
Solution Approach 1:
The bailer is designed to perform multiple functions: it houses the pumping mechanism for debris collection and supports the milling bit for material removal. This multi-functional design achieves the required adaptability and versatility without requiring separate specialized components for each function, thereby reducing overall device complexity.
Solution Approach 2:
The patent merges the structural support function and the debris collection function into a single bailer assembly. Rather than having separate structures for support and for debris collection, the bailer integrates both roles, reducing the number of moving parts and simplifying the overall device architecture.
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
The solution enables efficient milling and debris collection by providing forced circulation and effective debris removal, improving the milling process and reducing tool complexity and cost, while allowing deployment on a wireline.
Implementation Method 1
a gear train coupled to the motor, the gear train including a first rotational output and a second rotational output, the first and second rotational outputs having different rotational speeds relative to each other
Implementation Method 2
A typical debris collection device has a powerful pump that circulates well fluids through collection bailers that separate any solids from the fluids
Implementation Method 3
collection bailers that separate any solids from the fluids
Implementation Method 4
a milling face proximate the distal end of the bailer portion, the milling face including at least one bit for milling and configured to perform a milling operation
Data Source
AI summary
A system for performing a mechanical operation on a wireline is described including: a motor; a gear train coupled to the motor, the gear train including a first and a second rotational output, the first and second rotational outputs having different rotational speeds relative to each other; a fluid pump coupled to both the first and second rotational outputs, the fluid pump including: a pump housing coupled to the first rotational output, and a pump input coupled to the second rotational output; and a milling bailer coupled to the housing of the fluid pump and configured to rotate with the fluid pump housing, the milling bailer including: a bailer portion shaped to intake fluid and allow the fluid to flow through a filter and the fluid pump; and a milling face including a bit and configured to perform a milling operation while fluid is flowing through the bailer portion.