Abstract
Shale gas, as a clean energy, can save and substitute for a lot of coal and oil resource, reduce carbon emissions and further improve ecological environment. However, gas shale exploration has led to cause environmental issues such as air pollution, water pollution and ecological destruction etc., Through the method of literature study, social investigation and systematic analysis, the main challenges for the shale gas exploitation were studied, including the research on environmental impact of the shale gas development is not deep enough, pollution control technologies are still immature, and development techniques for deep shale gas aren’t master yet. The environmental management practices of shale gas development were systematically sorted out. First, strengthening basic research and key technologies tackling. Second, optimizing development planning and sequence of shale gas, promoting strategic environmental impact assessment and planning environmental impact assessment, the third, clarifying the management ideas and system of environmental impact assessment (EIA) and strengthen EIA supervision. The main problems still to be solved in the environmental protection of shale gas development, advices on both technical and management will be proposed, and it will offer experience for the shale gas exploring in China.
Highlights
Through technology breakthrough and exploration during the Twelfth Five-Year Plan period, breakthroughs have been obtained on key technologies used for the exploration and development of shale gas, engineering equipment has realized the localization, some important progress has been made on the base of basic geological investigation, Large numbers of shale gas wells were confirmed to have good resources and great potential in Ordos Basin and Sichuan basin and its surroundings, About ten favorable target areas were delineated, some important lessons was achieved on policy support, international cooperation and the related management of shale gas mining rights, China has already mastered the technology involved in shallow-sea shale gas exploration below 3500 meters, which effectively support the healthy and rapid development of the shale gas industry [1, 2]
Large numbers of drilling are necessary for shale gas output scale, drillers number is about hundreds of times more than the conventional natural gas, well-field covers more than 10 times area, it takes lots of lands
Water consumption used for shale gas exploration is about ten times more than its conventional natural gas, and water resource stress and severe water pollution caused by large water consumption are especially evident [5]
Summary
Through technology breakthrough and exploration during the Twelfth Five-Year Plan period, breakthroughs have been obtained on key technologies used for the exploration and development of shale gas, engineering equipment has realized the localization, some important progress has been made on the base of basic geological investigation, Large numbers of shale gas wells were confirmed to have good resources and great potential in Ordos Basin and Sichuan basin and its surroundings, About ten favorable target areas were delineated, some important lessons was achieved on policy support, international cooperation and the related management of shale gas mining rights, China has already mastered the technology involved in shallow-sea shale gas exploration below 3500 meters, which effectively support the healthy and rapid development of the shale gas industry [1, 2]. Rich resource and good industry startup provided the solid safeguard for shale gas development [3, 4]
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