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Human beings have engaged in the process of drilling holes for long period now. Initially, the methods used were basic and not very effective. However, as a result of technological advancements, deep hole drilling methods have advanced a lot. It is currently possible to reach great depths very fast and less costly. Drilling operations are also currently done on a much larger scale as before.
Well drilling is a process that people engage in for various reasons. Among the most important reasons is extraction of natural resources. People seek to extract ground water, petroleum, brine, and natural gas among others. Holes may at times be drilled to allow for injection of surface fluids into subsurface wells. Finally, researchers in need of studying subsurface formations usually drill holes to gain access to those depths. When the purpose of the drilling is to explore natural resources, then this process referred to by the term borehole drilling.
Initially, wells were excavated for the sole purpose of extracting water. Such wells were shallow and dug using hands and other simple tools. The digging was mostly done in places where the water table was near the surface. The sides of the wells were lined with wooden or masonry walls to prevent them from collapsing and burying people or rendering the wells useless.
Well drilling can be done manually or mechanically as deemed suitable. Manual options are more cheap and less complex while mechanical ones can be very sophisticated and expensive. Modern methods make use of long drill shafts for the operation. This kinds of drill shafts allow holes made to be deeper and narrower in a way that it would not be able to achieve if manual methods are used.
Different kinds of drill bits exist today that it can be difficult to choose which one to work with. Lucky enough, there are many holes that have been drilled in the world so far, with some locations having several holes in one place. As such, information from adjacent wells is often based upon when choosing the kind of drill bits to use in an operation. It is also possible to change the drill bits as deemed appropriate during the process.
Roller cone and fixed cutter are the two kinds of drill bits that exist in the industry today. Fixed drill bits are made of no moving parts. As such, abrasion, scrapping, and shearing forces are relied upon to gouge through rock to make wells. Materials used to make these bits include natural diamond, hotpressed inserts, and polycrystalline diamond compact.
On the other hand, roller drill bit is composed of moving parts and drilling occurs as a result of movement applied against the rock. These kinds of bits are made from tungsten carbide inserts or milled tooth. Tungsten carbide inserts is used for harder formations while milled tooth is preferred for softer rocks formations.
The two kinds of drill bits come in a wide variety of models. Each model is intended for different drilling situations. This means that the manufacturing and inclusion of composites is done with this in mind. The level of efficiency can also be enhance by incorporating enhancements into the bits.
Well drilling is a process that people engage in for various reasons. Among the most important reasons is extraction of natural resources. People seek to extract ground water, petroleum, brine, and natural gas among others. Holes may at times be drilled to allow for injection of surface fluids into subsurface wells. Finally, researchers in need of studying subsurface formations usually drill holes to gain access to those depths. When the purpose of the drilling is to explore natural resources, then this process referred to by the term borehole drilling.
Initially, wells were excavated for the sole purpose of extracting water. Such wells were shallow and dug using hands and other simple tools. The digging was mostly done in places where the water table was near the surface. The sides of the wells were lined with wooden or masonry walls to prevent them from collapsing and burying people or rendering the wells useless.
Well drilling can be done manually or mechanically as deemed suitable. Manual options are more cheap and less complex while mechanical ones can be very sophisticated and expensive. Modern methods make use of long drill shafts for the operation. This kinds of drill shafts allow holes made to be deeper and narrower in a way that it would not be able to achieve if manual methods are used.
Different kinds of drill bits exist today that it can be difficult to choose which one to work with. Lucky enough, there are many holes that have been drilled in the world so far, with some locations having several holes in one place. As such, information from adjacent wells is often based upon when choosing the kind of drill bits to use in an operation. It is also possible to change the drill bits as deemed appropriate during the process.
Roller cone and fixed cutter are the two kinds of drill bits that exist in the industry today. Fixed drill bits are made of no moving parts. As such, abrasion, scrapping, and shearing forces are relied upon to gouge through rock to make wells. Materials used to make these bits include natural diamond, hotpressed inserts, and polycrystalline diamond compact.
On the other hand, roller drill bit is composed of moving parts and drilling occurs as a result of movement applied against the rock. These kinds of bits are made from tungsten carbide inserts or milled tooth. Tungsten carbide inserts is used for harder formations while milled tooth is preferred for softer rocks formations.
The two kinds of drill bits come in a wide variety of models. Each model is intended for different drilling situations. This means that the manufacturing and inclusion of composites is done with this in mind. The level of efficiency can also be enhance by incorporating enhancements into the bits.
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