Downhole Punch Cutting Edge for Casing Insertion
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Solution Overview
Problem
Existing methods for inserting valves or sensors into the casing of oil wells are difficult to perform in muddy conditions due to low visibility and narrow casings, requiring a simple and effective solution for creating new openings and sealing existing ones.
Innovation Solution
A downhole punch or valve with a cutting edge, arranged as an extension of the outer face, is used to punch an opening in the casing, allowing for the insertion of a valve or sensor without clearance, which is then fastened to the casing. The tool includes a moving mechanism to penetrate the casing and a magazine for multiple valve insertion, utilizing a driving unit for forward movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a valve is inserted into the casing wall, then the valve can control fluid flow in the well, but the insertion process becomes difficult due to low visibility and narrow casing space
Solution Approach 1:
The punching tool is designed to punch itself into the casing wall using its own cutting edge, eliminating the need for external manipulation in the narrow, low-visibility casing environment. The tool self-secures by punching a clearance-free opening and fastening itself to the casing wall, allowing reliable valve insertion without complex manual operations.
2Reliability
If a punching tool is used to create an opening in the casing, then a valve can be inserted, but the tool must be precisely fastened without clearance to ensure security
Solution Approach 1:
The punching tool is pre-configured with a cutting edge that creates a clearance-free opening in the casing wall before the valve is inserted. This preliminary punching action ensures that the opening dimensions exactly match the valve outer diameter, guaranteeing secure fastening without subsequent clearance issues or adjustment needs.
3Productivity
If the cutting edge is arranged as an extension of the outer face, then the punching tool can effectively penetrate the casing, but the structural design becomes more complex
Solution Approach 1:
The cutting edge is merged with the outer face of the punching tool body, forming an integrated structure where the cutting edge is simply an extension of the outer face. This combination eliminates the need for separate cutting edge components or complex mounting mechanisms, achieving effective casing penetration while maintaining simple overall structure.
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 easy and secure insertion of valves or sensors into the casing, even in challenging conditions, ensuring proper fastening and functionality, while minimizing the inner diameter requirement of the casing hole.
Implementation Method 1
a first end (105) of the body (104) comprises at least one cutting edge (109) at least forming a leading tip (114) or a leading edge (115) for punching an opening in the casing (3)
Data Source
AI summary
The present invention relates to a downhole punch for insertion into a wall of a casing. The downhole punch comprises a body having a first end and a second end and a through-bore forming an inner face of the body and an outer face of the body, wherein the first end comprises at least one cutting edge at least forming a leading tip or a leading edge for punching an opening in the casing, and a component is arranged in the through-bore. The present invention also relates to a downhole valve for insertion into a wall of a casing. The downhole valve comprises a housing having a first end and a second end and an inner face and an outer face. Furthermore, the invention relates to a downhole tool for inserting a downhole valve into a wall of a casing, to a downhole system comprising the downhole tool as well as to a downhole method for insertion of a downhole unit into a casing downhole.