| Customization: | Available |
|---|---|
| Type: | Surface Set Core Bit |
| Usage: | Coring |
|
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Details about Surface Set Diamond Core Bits:
Bit Penetration Rates: The penetration rate of a Surface Set Diamond Core Bit refers to the speed at which it drills through the rock formation. Several factors influence the penetration rate, including the hardness and abrasiveness of the rock, the bit design and configuration, the drilling parameters (such as rotational speed and weight on bit), and the characteristics of the drilling rig. Achieving optimal penetration rates is crucial for efficient drilling operations.
Bit Design Variations: Surface Set Diamond Core Bits come in various designs to accommodate different drilling conditions and objectives. Some common design variations include open face bits, impregnated bits, and reaming shells. Open face bits have exposed diamonds on the bit's surface, providing efficient cutting action. Impregnated bits have diamonds embedded within the matrix, offering extended bit life and versatility in various rock formations. Reaming shells are used to enlarge the borehole diameter after initial drilling.
Core Quality and Integrity: Surface Set Diamond Core Bits are designed to extract high-quality core samples with minimal damage or alteration. The core obtained with these bits provides valuable information about the geological formations, including rock composition, structure, and potential mineralization. Maintaining core quality and integrity involves careful bit selection, proper drilling techniques, and handling the core samples with care during extraction and storage.
Bit Performance Evaluation: The performance of Surface Set Diamond Core Bits is evaluated through various means, including visual inspection of the core samples, analysis of the cutting efficiency, and assessment of the recovery rates. The examination of the core can provide insights into the bit's performance, such as the quality of the core, the presence of diamonds on the recovered core, and any signs of wear or damage on the bit. This evaluation helps in optimizing drilling operations and identifying any necessary adjustments or improvements.
Bit Servicing and Re-Tipping: Surface Set Diamond Core Bits can be serviced and re-tipped to extend their lifespan and maintain optimal performance. Bit servicing involves cleaning the bit, inspecting the diamonds and matrix for wear or damage, and replacing worn-out sections if necessary. Re-tipping refers to the process of replacing the worn diamonds or matrix section. Bit servicing and re-tipping can be performed by specialized bit servicing companies or by following recommended procedures provided by the bit manufacturers.
Drilling Techniques: Surface Set Diamond Core Bits are used in various drilling techniques depending on the drilling objectives and geological conditions. Common drilling techniques include wireline coring, conventional coring, and directional coring. Wireline coring allows for rapid and efficient core retrieval, while conventional coring involves tripping the entire drill string to recover the core. Directional coring techniques are used when drilling at an angle or in horizontal wells.
Bit Safety Considerations: Safety is of paramount importance in drilling operations involving Surface Set Diamond Core Bits. Proper safety protocols and equipment are employed to protect the operators and ensure the integrity of the drilling rig. This includes the use of personal protective equipment, adherence to safety guidelines, regular equipment inspections, and proper training for all personnel involved in the drilling process.
Bit Cost and Economics: The cost of Surface Set Diamond Core Bits can vary based on factors such as bit size, quality, customization, and the specific requirements of the drilling project. While high-quality bits may have a higher upfront cost, they often provide better performance, longer lifespan, and improved core recovery rates, resulting in cost savings over the long term. The overall economics of using Surface Set Diamond Core Bits involve considering factors such as operational efficiency, core quality, and overall project objectives.
Surface Set Diamond Core Bits are essential tools in the exploration and characterization of subsurface geological formations. Ongoing advancements in bit design, materials, and drilling techniques contribute to improved performance, increased productivity, and enhanced understanding of the Earth's subsurface.
Surface set diamond core bit table
| NO. | Standard | Name | Outer diameter*Inner diameter(mm) | Waterways | Diamond particle sizes |
| Q series | |||||
| 1 | AQ | Diamond core bit | 47.7*27.1 | 6 | 14/16 |
| 2 | BQ | Diamond core bit | 59.6*36.5 | 6 | 14/16 |
| 3 | NQ | Diamond core bit | 75.4*47.7 | 6 | 14/16 |
| 4 | NQ3 | Diamond core bit | 75.4*45.2 | 6 | 14/16 |
| 5 | HQ | Diamond core bit | 95.7*63.6 | 6 | 14/16 |
| 6 | HQ3 | Diamond core bit | 95.7*61.2 | 6 | 14/16 |
| 7 | PQ | Diamond core bit | 122.3*85.1 | 6 | 14/16 |
| 2 | PQ3 | Diamond core bit | 122.3*83 | 6 | 14/16 |
| NW series Surface Set Diamond core bit | |||||
| 1 | NWM | Diamond core bit | 59.6*36.5 | 6 | 14/16 |
| 2 | NWG | Diamond core bit | 75.4*54.8 | 6 | 14/16 |
| MLC series Surface Set Diamond core bit | |||||
| 1 | NMLC | Diamond core bit | 75.4*52.1 | 6 | 14/16 |
| 2 | HMLC | Diamond core bit | 98.9*63.6 | 6 | 14/16 |
| QTT series Surface Set Diamond core bit | |||||
| 1 | NQTT | Diamond core bit | 75.4*45 | 6 | 14/16 |
| 2 | HQTT | Diamond core bit | 95.7*61.1 | 6 | 14/16 |
FAQ:
1.Q: Can Surface Set Diamond Core Bits be used for drilling in highly fractured formations?
A: Surface Set Diamond Core Bits can be used in fractured formations, but care must be taken to prevent core loss by using appropriate drilling techniques and equipment.
2.Q: What are the limitations of using Surface Set Diamond Core Bits in drilling projects?
A: Limitations can include reduced performance in soft formations, higher costs compared to other bit types, and the need for skilled operators and proper maintenance.
3.Q: Can Surface Set Diamond Core Bits be used for rock strength testing?
A: Yes, Surface Set Diamond Core Bits can be used to obtain intact core samples for laboratory testing to determine rock strength properties.
4.Q: Can Surface Set Diamond Core Bits be used in offshore drilling operations?
A: Yes, Surface Set Diamond Core Bits can be used in offshore drilling operations, provided the necessary equipment and safety measures are in place.
5.Q: What are some factors that can cause premature bit failure in Surface Set Diamond Core Bits?
A: Factors include excessive weight on bit, high drilling speeds, improper cooling and lubrication, abrasive formations, and inadequate bit maintenance.
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