Application Analysis of Directional Drilling Technology with Screw Drill in Coalbed Methane Drilling Wells
With the rapid development of China's economy,the demand for energy is increasing,and traditional coal resources can no longer meet the country's development needs.China has abundant coalbed methane resources,which are widely distributed and have low mining costs,it is a clean and efficient energy source.Compared with oil and natural gas wells,coalbed methane wells have problems such as wellbore collapse,leakage,and blockage.Screw drilling method is a new drilling technique that can be used for coalbed methane extraction.Based on the principle of directional drilling technology using screw drill,taking the No.1 well of a coal mine as an example,the application of this technology is analyzed in coalbed methane drilling,and then the effectiveness of the technology application is evaluated,in order to ensure the safety of coalbed methane mining and better develop and utilize coalbed methane resources.
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