Multipurpose Drill System With Dual Power Sources
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Solution Overview
Problem
Conventional drilling rigs are limited in their ability to efficiently drill large diameter holes in both soft and hard rock formations, as they require separate rigs for rotary drilling and down the hole hammer techniques, leading to increased capital and operational costs, and inefficient utilization of assets due to the different power and fluid requirements of each method.
Innovation Solution
A multipurpose drill system equipped with two or more power sources, including high pressure and low pressure power sources, such as air compressors, that can be selectively used to accommodate different drilling techniques, allowing for interchangeable drilling assemblies and independent operation of each power source to meet the specific requirements of rotary drilling, percussion assisted rotary drilling, and down the hole hammer drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single drilling rig is used for both rotary drilling and down the hole hammer techniques, then capital costs are reduced, but the rig cannot meet the different power and fluid requirements of both methods simultaneously
Solution Approach 1:
The drilling rig is designed with multiple power sources including a high pressure power source and a low pressure power source, enabling it to perform both down the hole hammer drilling and rotary drilling operations. The system can selectively switch between power sources based on the drilling method required, making the rig versatile for different rock formations and drilling techniques while avoiding the need for separate dedicated rigs.
2Volume of moving object
If rotary drilling is used in hard rock formations, then large diameter holes can be drilled, but drill bit wear increases and operational costs rise
Solution Approach 1:
The system dynamically selects the appropriate drilling method based on rock hardness conditions. When hard rock formations are encountered, the rig switches from rotary drilling to down the hole hammer drilling by activating the high pressure power source. This dynamic adaptation allows maintaining large diameter drilling capability while reducing drill bit wear in hard rock conditions through the more suitable hammer drilling technique.
3Reliability
If separate drilling rigs are used for rotary drilling and down the hole hammer techniques, then each method can be optimized, but asset utilization decreases and operational costs increase
Solution Approach 1:
The invention merges the capabilities of separate rotary drilling rigs and down the hole hammer rigs into a single multipurpose rig. By integrating both high pressure power source (for hammer drilling) and low pressure power source (for rotary drilling) into one platform, the system achieves optimized performance for both methods while improving asset utilization and reducing operational costs through consolidated equipment usage.
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 drilling of large diameter holes in varying rock hardness conditions using a single rig, reducing capital and operational costs by allowing switching between drilling methods based on rock hardness, and optimizing energy use through separate engines for each power source, thereby improving drill rig output and extending the life of drill bits.
Implementation Method 1
at least one of the two or more power sources is a high pressure power source
Implementation Method 2
provide an air stream to the drill pipe to flush the drill cuttings from the drill hole
Data Source
AI summary
The present invention relates to a multipurpose drill system, the multipurpose drill system comprising: a drilling rig adapted to drive a drilling assembly; and two or more power sources, wherein at least one of the two or more power sources is a high pressure power source, wherein the drilling assembly is adapted to be in communication with either or both of the two or more power sources.