Search results for keyword: wellbore
shaft coal pillar mining
Coal-bed Methane (CBM) has been traditionally extracted from coal seams through coal pit borehole mining. Coal miners have employed various methods to extract coal-bed methane (CBM) from coal seams. The most common means is the borehole mining method, which involves drilling a series of boreholes ......
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Sophie
drilling fluid
Drilling fluids, or mud, are used to drill oil and gas wells, and other types of wells. These fluids are utilized to cool the bit, carry cuttings from the bottom of the hole, and to control the formation pressure encountered when drilling a well. Different types of drilling fluids are used depending......
Dagang oil area
Greater Gorges Oil Fields
The Greater Gorges Oil Field is located in China’s Gorges province. It is one of the largest oilfields in the country with over 2,500 wells producing an estimated 116 million tons of crude oil. The field was discovered in 1997 by China Petroleum and Chemical Corporation......
Repairing Features and Technology of Perforating Gun Barrel in Oil and Gas Field
Influence of Repair Technology on Performance Characteristics of Casing Gun in Oil and Gas Fields
Casing guns are an important tool in oil and gas fields. They are used in oil and gas fields to provide support for well walls, prevent the escape of fluids, and collect samples from wellbores. In o......
drilling method
Introduction
Oil drilling is the process of drilling a hole in the earth in order to access and recover oil reserves. Oil drilling is typically done using a variety of methods, including rotary drilling and directional drilling. Each method can be used to access oil reserves located deep within t......
mechanical properties of rock
Mechanical Properties of Rocks
Rocks are natural materials that are commonly used in the construction of roads, bridges and other structures. In order for these structures to be safe, it is important to have an understanding of the mechanical properties of rocks. Mechanical properties are charact......
Lithology Density Logging
Porosity log is a type of logging tool used to measure the ability of reservoir rocks to hold fluids. In other words, it measures the porosity of the formation to aid in determining the permeability of the formation. Porosity logs measure the total porosity of the formation, which is the volume of......
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