Casing Tube Drilling with Integrated Emptying Station
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Solution Overview
Problem
Existing drilling methods for casing tubes are inefficient and require frequent detachment and reattachment of the drilling apparatus, especially in adverse weather conditions, leading to delays and increased operator skill requirements.
Innovation Solution
An emptying station is attached to the casing tube, allowing the drilling apparatus to remain fixed and featuring an adjustable unloading mechanism for conveying drill cuttings away, eliminating the need for repeated detachment and facilitating operations independent of weather influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the drilling apparatus is detached and reattached for each drilling operation, then the apparatus can be moved to different casing tubes, but the process is delayed and requires high operator skill in adverse weather
Solution Approach 1:
The system is divided into a mobile drilling apparatus and a stationary emptying station with fastening means. The emptying station remains attached to the casing tube while the drilling apparatus can be moved to different casing tubes, eliminating the need to detach and reattach the entire drilling apparatus for each operation.
Solution Approach 2:
The emptying station acts as an intermediary between the drilling apparatus and the casing tube. It provides the fastening connection to the casing tube while allowing the drilling apparatus to be moved independently, serving as a stable base that remains in place during multiple drilling operations.
2Productivity
If the drilling apparatus is suspended on a crane cable, then it can be moved efficiently, but swaying movements cause delays in adverse weather conditions
Solution Approach 1:
The emptying station is pre-installed and fastened to the casing tube before drilling operations begin. This preliminary setup creates a stable, fixed reference point that eliminates the need to reposition the entire drilling apparatus during operations, reducing the impact of weather-related swaying movements.
Solution Approach 2:
Instead of suspending the emptying station on a crane cable like the drilling apparatus, the emptying station is fastened directly to the casing tube. This inverts the traditional suspension approach, making the emptying station stationary and stable while allowing the drilling apparatus to maintain its mobile crane-suspended configuration.
3Ease of operation
If the drilling tool is emptied by detaching the drilling apparatus, then cuttings can be removed, but the repeated detachment increases operational complexity
Solution Approach 1:
The emptying function is merged with the fastening function by integrating the unloading means into the emptying station that is fastened to the casing tube. This combination allows the drilling tool to be emptied in place without requiring detachment of the drilling apparatus, simplifying the emptying operation while reducing the frequency of detachment and reattachment cycles.
Data Source
AI summary
The invention relates to a drilling device and a drilling method for drilling inside a casing tube, wherein the drilling apparatus has a supporting frame with a fastening means for fixation with respect to the casing tube and a drilling tool, which is driven in a rotating manner via a telescopic rod by means of a drill drive arranged on the supporting frame. An emptying station for attachment to the upper end of the casing tube is provided, wherein the supporting frame of the drilling apparatus can be fastened on the emptying station. For emptying the drilling tool of drill cuttings the emptying station has an unloading means, which is adjustable for receiving the drill cuttings. The unloading means is designed for conveying the drill cuttings away from the emptying station.