Injection Drill Bit with Grooves for Simultaneous Drilling and Injection
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Solution Overview
Problem
Current methods for drilling a hole in a well tubular and injecting a fluid into an annular space require multiple time-consuming operations, involving separate equipment and procedures, which are inefficient and labor-intensive.
Innovation Solution
A device with a drill bit assembly featuring cutting edges and helical grooves on its outside surface, combined with a drill seal and fluid supply system, allowing for simultaneous drilling and fluid injection by rotating the drill bit and using the grooves for both drilling residue removal and fluid delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate operations are used for drilling and fluid injection, then each operation can be performed with dedicated equipment, but the total time and number of operations increase significantly
Solution Approach 1:
The patent combines drilling and fluid injection operations into a single integrated device. The drill bit features both cutting edges for drilling and grooves for fluid injection, allowing both operations to be performed simultaneously through the same tool, thereby reducing total operation time while maintaining reliability through a unified system design
Solution Approach 2:
The drill bit is designed with multi-functionality, serving both as a drilling tool with cutting edges and as a fluid injection device with integrated grooves. This universal tool eliminates the need for separate drilling and injection equipment, reducing the number of operations and time required while maintaining the reliability of each function through dedicated structural features
2Reliability
If multiple separate devices are deployed for drilling and injection, then each function is optimized, but device complexity and equipment requirements increase
Solution Approach 1:
The patent merges multiple separate devices (drilling tool and injection device) into a single integrated tool. The drill bit combines cutting edges for drilling with grooves for fluid injection, reducing equipment complexity while maintaining functional optimization through carefully designed structural features that serve both purposes effectively
Solution Approach 2:
The drill bit is designed as a universal tool that performs both drilling and fluid injection functions. By integrating cutting edges and injection grooves into a single component, the patent reduces the number of equipment pieces needed while maintaining the reliability and effectiveness of each function through dedicated structural elements
3Reliability
If multiple operations are performed sequentially, then each operation can be completed thoroughly, but the overall productivity decreases
Solution Approach 1:
The patent combines drilling and fluid injection operations into a single simultaneous process using an integrated drill bit. Both operations are performed through the same tool in one continuous action, improving overall productivity while maintaining the completeness and reliability of each function through dedicated structural features
Solution Approach 2:
The multi-functional drill bit performs both drilling and fluid injection simultaneously, eliminating the need for sequential operations. This increases overall productivity while ensuring operational completeness through carefully designed cutting edges for drilling and grooves for injection that work together in a single integrated process
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 approach reduces the number of operations and time required for injecting substances by creating a fluid-tight seal and utilizing the grooves for both drilling and injection, enhancing efficiency and reducing equipment needs.
Implementation Method 1
a drill seal surrounding the drill bit, for sealing the device against the well tubular
Implementation Method 2
rotation means connected to said drill bit assembly, the rotation means being capable of rotating the drill bit assembly
Implementation Method 3
drive means for advancing the drill bit assembly towards the well tubular
Implementation Method 4
a fluid supply for supplying a fluid or fluid mixture to the grooves of the rotating drill bit
Data Source
Figure 1a~1b
Figure 1c~2
Figure 3
AI summary
A device for drilling a hole in a well tubular and for subsequent injection of a fluid or fluid mixture into an annular space or formation surrounding the well tubular. The device comprises a housing and a drill bit assembly arranged inside the housing. In the drill bit assembly, a drill bit with cutting edges and grooves extending along its outside surface, is arranged. The device further comprises rotation means being capable of rotating the drill bit assembly and a fluid supply for supplying a fluid or fluid mixture to the grooves of the rotating drill bit. A seal is surrounding the drill bit and capable of sealing the device against the inner surface of the well tubular.