Plastic inspection wells can be categorized by their usage into stormwater and sewage plastic inspection wells. Their application fields are divided into building and community drainage plastic inspection wells and municipal drainage plastic inspection wells. "Through the introduction, digestion, absorption, and innovation, we quickly mastered the complete technology from design to command and construction," said Liu Yaowen, Director of the Exploration and Development Management Department of Jianghan Oilfield Shale Gas. Horizontal drilling is the core technology in shale gas extraction. Fuling Shale Gas Field has tried to use the "three diagrams and one table" tracking method for drilling guidance and has now formed a mature three-dimensional geological guidance technology. The drill bit can "smell" the "taste" of the gas reservoir and advance. The bridge plug is also an indispensable core component in shale gas extraction, with strict requirements for its mechanical properties and compressive strength. "For example, the compressive strength needs to reach dozens even hundreds of megapascals; the instantaneous release of 100 megapascals of pressure can penetrate a steel plate 1 centimeter thick.