Percussion drilling is a manual drilling technique in which a heavy cutting or hammering bit attached to a rope or cable is lowered in the open hole or inside a temporary casing. The technique is often also referred to as 'Cable tool'. Usually a tripod is used to support the tools. By moving the rope or cable up and down, the cutting or hammering bit loosens the soil or consolidated rock in the borehole, which is then extracted later by using a bailer. Just as with hand augering, a temporary casing of steel or plastic may be used to prevent the hole from collapsing. When the permanent well screen and casing are installed, this temporary casing has to be removed.
The percussion borehole Drilling Rig's technical advantages:
- Unlike any other drilling method, percussion can remove boulders and break harder formations, effectively and quickly through most types of earth. Hydraulic Engineering Percussion Rig Hydraulic Engineering Percussion Rig,Big Cable Percussion Drilling Rig,Large Diameter Construction Percussion Rig,Truck Mounted Percussion Drilling Rig Henan YikYui Prospecting Machinery Co., Ltd , https://www.yikyui-rig.com
- Percussion drilling can in principle deal with most ground conditions.
- Can drill hundreds of feet (one well hand-drilled in China in 1923 was over 4000 feet deep).
- Can drill further into the water table than dug wells, even drilling past one water table to reach another.
The chemical industry has become a pillar industry in Hongze County, Jiangsu Province. In the first 10 months of this year, the chemical industry in Hongze County registered 37.983 million yuan in taxes, accounting for 39.77% of the total national tax revenue, an increase of 29.77% over the same period of last year. Hongze County is rich in the resources of Glauber's salt, ranking first in the world in proven reserves. Before 1999, Hongze County had only 3-4 chemical products produced from Glauber's salt, and its annual sales were only 10 million yuan. In recent years, Hongze County has successively invested with Shannan Southwest Wind Group, Spain Kremidasa Corporation, and Indonesia Dayang Company, making the annual production capacity of Glauber's Salt in Hongze County reach 800,000 tons, and it has become the world's largest production base for Glauber's salt. This year, Hongze County has also invested 150 million yuan in cooperation with major companies in Hong Kong and other cities with powerful strength. The new five projects have made Hongze County one of the important fine chemical bases in China. According to statistics, over the past five years, Hongze County has attracted more than 600 million yuan to inject into the chemical industry, accumulatively achieving tax profits of more than 250 million yuan, becoming the most important tax source in the region. At present, Hongze County has nearly 30 varieties of chemical products, products exported to Europe and the United States, Japan and Southeast Asia and other countries and regions. This year, the county's chemical industry is expected to exceed 800 million yuan in sales revenue.