Search results for keyword: borehole
Hollow steel for rock drilling rods (GB/T1301—1994)
Hollow steel, also known as hollow steel, is a kind of steel cross section made of uniform thickness rolled and welded steel, which is also called divided steel. It is an iron and steel material with different shapes and wall thicknesses. It is mostly used for steel columns, steel beams, steel sca......
1029 
Lily
Hollow steel for rock drilling needle rods (GB/T1301-1994)
Introduction
Rock drills, also called pneumatic drills, are a type of machinery used to drill into rock or hard surfaces. Rock drills are powered by compressed air and contain a hollow steel tube that is inserted into a rock or hard surface to create a hole. These drills are commonly used in the ......
Metal drill (GB/T3211-1987)
Metal drill (GB/T3211-1987)
Metal drills are tools which can be used to drill holes through metal surfaces. As metal is a more robust material than wood, it demands more specialized tools for drilling. Metal drill (GB/T3211-1987) is a certification standard of metal drill tools in China.
Metal ......
Crushing process control
在矿山当中，破碎过程是一项关键性操作，可缩短物料打磨破碎过程，提升矿料加工率。 在矿山内，破碎过程控制既包括机械控制，也包括管理和技术控制。机械控制包括破碎设备本身的选配，设备改造和优化设计，还有质量检测，让这些设备符合国家标准。管理控制则涉及各种管理体系的改造，如标准化管理流程、操作规程、质量管理......
rotary drilling
Boring Bits
Boring bits, also known as hole cutters, are tools used to both drill through hard material and expand the size of an existing hole. They come in a variety of shapes, sizes, and uses and are used in various disciplines such as construction, engineering, and carpentry. Depending on the......
Engineering logging
Introduction
Well logging is an overarching term that encompasses the use of various instruments to measure physical characteristics of a borehole and its surrounding geologic formation. In oilfield, well logging is a critical tool used to evaluate the presence and production capabilities of hydr......
freeze sinking
Well Shaft Drilling
Well shaft drilling is an innovative technique used to drill into the earth. This method is mainly used when creating large, deep holes or tunnels. It is commonly used in the construction industry as well as in exploration projects, such as oil and gas drilling.
The primary b......
Natural Gamma Spectral Logging
Logging in natural γ-ray spectroscopy
Logging in natural γ-ray spectroscopy (NGS) is a technique used in the oil and gas industry to assess the content of specific materials in a specified area. This is achieved by measuring the energy of emitted γ-ray photons from natural sources, such as ura......
Saturation Logging
What is Saturation Logging
Saturation logging, also known as resistivity and saturation log, is a type of geophysical logging method used to measure the amount of hydrocarbons present in a potential oil reservoir. The two main measurements taken using the method are the electrical resistivity and......
Physical and mechanical properties of rock mass
Introduction
Rocks as a natural material consist of numerous different minerals and they form the basis of the earth’s crust. In addition, their composition and texture determine their physical, mechanical and chemical characters. Therefore, rock mechanics deals with the interactions between roc......
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