Casing shoes are used for drilling down or positioning the casing tubes in a borehole.
Surface-Set Diamond Bits:
1: Surface-Set Diamond Bits are set with a singular layer of natural or synthetic diamond utilizing a hard matrix compound on the face of the bit. The diamond set design ensures sufficient overlap to prevent premature wear of the matrix.
2: Surface-Set diamond bits are primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations that are not effectively drilled by impregnated diamond bits. They are also recommended for use in drilling harder formations where the available rotational speeds and bit loads are insufficient to use impregnated diamond bits due to drilling equipment limitations.
Surface-set bits Diamond Grades:
Diamond grade is the most important factor to take into consideration when selection a surface set diamond core bit, as it affects bit price and total meters drilled, and therefore obviously affects cost per meter drilled. Number of stones is also a very important factor orienting the bit selection too through determining how well a bit will cut. The natural diamonds utilizing for surface set diamond bits have been selected carefully, and precise pattern has also been used to set each diamond on bit cutting area to ensure proper overlap with a minimum of diamonds to keep the carat weight (the initial bit cost) as low as possible
Wireline Series: B, N, H, P
W Series: RW, EW, AW, BW, NW, HW, PW, SW, UW, ZW, HWT, PWT, BWS, NWS
Metric Series: 46, 56, 66, 76, 86, 101, 116, 131, 146
X Series: RX, EX, AX, BX, NX, HX, PX, SX, UX, ZX
All Chinese Sizes
If you need any further information, please feel free to contact with us, we will be quite pleased to show all the details you asked for.
Dimensions of Casing Shoes:
Size | Outside Diameter | Inside Diameter |
mm | mm | |
RW | 37.6 | 30.2 |
EW | 47.5 | 38 |
AW | 59.5 | 48.3 |
BW | 75.2 | 60.2 |
NW | 91.8 | 76 |
HW | 117.4 | 99.7 |
PW | 143.4 | 123.4 |
SW | 172.4 | 146.8 |
UW | 198 | 175.4 |
ZW | 223.6 | 200.7 |
RX | 37.6 | 30.2 |
EX | 47.5 | 38 |
AX | 59.5 | 48.3 |
BX | 75.2 | 60.2 |
NX | 91.8 | 76 |
HX | 117.4 | 99.7 |
PX | 143.4 | 123.4 |
SX | 172.4 | 146.8 |
UX | 198 | 175.4 |
ZX | 223.6 | 200.7 |
46 | 46 | 37 |
56 | 56 | 47 |
66 | 66 | 57 |
76 | 76 | 67 |
86 | 86 | 77 |
101 | 101 | 88 |
116 | 116 | 103 |
131 | 131 | 118 |
146 | 146 | 133 |
Details about Surface Set Diamond Core Bits:
1. Diamond Selection: The quality and characteristics of the diamonds used in Surface Set Diamond Core Bits are crucial for their performance. Diamond manufacturers carefully select diamonds based on their size, shape, quality, and hardness. The diamonds should have high hardness and abrasion resistance to withstand the demanding drilling conditions and maintain their cutting efficiency over time. The selection process ensures that only high-quality diamonds are used in the manufacturing of the core bits.
2. Core Bit Assembly: Surface Set Diamond Core Bits are assembled using specialized techniques to ensure their structural integrity and optimal performance. The diamonds are placed in pre-determined patterns within the bit matrix, taking into account factors such as diamond size, spacing, and orientation. The diamonds are securely held in place by the matrix material, ensuring they protrude sufficiently to engage with the rock formation during drilling. The assembly process requires precision and expertise to achieve consistent and reliable bit performance.
3. Bit Run Life: The run life of a Surface Set Diamond Core Bit refers to the duration of effective drilling before the bit needs to be replaced or refurbished. The run life can vary depending on factors such as the hardness of the rock formation, drilling parameters, bit design, and quality of the diamonds and matrix material. Extending the run life of the bit is desirable as it reduces downtime for bit changes and improves overall drilling efficiency. Operators may employ various strategies such as optimizing drilling parameters, using high-quality bits, and implementing proper maintenance practices to maximize the run life of the core bits.
4. Core Bit Refurbishment: Over time, Surface Set Diamond Core Bits can experience wear and degradation due to the harsh drilling conditions. To extend their lifespan and maintain performance, refurbishment processes are employed. Refurbishment typically involves re-topping the bit by adding new diamonds to the matrix, reconfiguring the cutting structure, or repairing any damaged components. Refurbished bits undergo quality control checks to ensure their performance meets the required standards before being used for drilling operations again.
5. Bit Performance Data Analysis: Collecting and analyzing performance data of Surface Set Diamond Core Bits is crucial for optimizing drilling operations. Operators track various parameters such as penetration rate, core recovery, bit wear, and drilling fluid properties. This data is analyzed to identify trends, assess the effectiveness of different bit designs or drilling techniques, and make informed decisions for future drilling projects. Performance data analysis helps operators improve drilling efficiency, enhance bit selection, and optimize overall drilling practices.
6. Bit Storage and Inventory Management: Proper storage and inventory management of Surface Set Diamond Core Bits are essential to ensure their longevity and availability when needed. Bits should be stored in a clean and dry environment, protected from contaminants and extreme temperatures. Inventory management systems help track the number and condition of the bits, ensuring an adequate supply is maintained and facilitating timely replacements or refurbishment when necessary.
7. International Standards and Regulations: Surface Set Diamond Core Bits are subject to various international standards and regulations to ensure their quality, safety, and environmental compliance. Organizations such as the International Organization for Standardization (ISO) and industry associations establish guidelines and specifications for the design, manufacture, and use of core drilling equipment. Manufacturers and operators adhere to these standards to ensure the reliability and performance of Surface Set Diamond Core Bits in a global context.
8. Research and Development: Ongoing research and development efforts in the field of core drilling technology contribute to the advancement of Surface Set Diamond Core Bits. Manufacturers, industry organizations, and research institutions continually explore new materials, bit designs, and drilling techniques to improve the efficiency, durability, and environmental sustainability of core drilling operations. Collaborative efforts drive innovation and lead to the development of more effective and efficient core drilling tools.
Surface Set Diamond Core Bits continue to evolve and play a crucial role in geological exploration, mining, and various other industries. The combination of advanced materials, manufacturing techniques, and data-driven analysis contributes to their continuous improvement. By staying informed about the latest developments,