| With the rapid development of China's socio-economic, industrial wastewater, sewage, the oil pipeline spill, the rubbish piling up in landfill leaching, chemical fertilizers, etc caused serious soil environmental pollution. Soil pollution to human life and socio-economic sustainable development has resulted in serious harm. In view of the current status of our soil environment and to protect our people's health and socio-economic sustainable development, it is essential to research advanced soil pollution repair technology.Horizontal Directional Drilling soil environment repair technology is repair the polluted soil use horizontal directional well. Use of horizontal wells for soil environment has some advantages: horizontal wells can repair the polluted soil under the obstacles that the vertical wells can not be able to overcome, and more contact area with soil, more efficient. Horizontal Directional Drilling soil environment repair technology is many areas of interdisciplinary cross the forefront of issues; it involve drilling engineering, environmental engineering, geological engineering, mechanical design and other related areas.This paper studies the following content: (1) horizontal directional well drilling technology; (2) repair horizontal directional well completion technology; (3) pipeline assembly design. (4) test the content that studied.Through the research and experiment, the results include: design well completion technology which fit for soil environment repair; packer structure design. Analysis of the issues and improve the program.The research fills the gap that use horizontal directional well to repair polluted soil in China, provide reference research and application for future. |