Research Progress on Shale Gas at Home and Abroad and Shale Gas Resource Potentiality in Shandong Province

At present,contradictions between supply and demand of current international energy has becoming more and more outstanding.Energy is increasingly becoming the focus in the world,and exploration and development of shale gas resources has been paid more attention.Shale gas resources are very rich,they are mainly distributed in North America,Central Asia,China,Latin America,the Middle East and North Africa,and the former Soviet Union.In recent years,accompanying with the development of mining and use technologies,exploration of shale gas resources have been carried out in the America,Europe,Asian countries.Shale gas resources are very rich in China.Regional exploration research has been carried out step by step,and has achieved good results.But the overall research and exploration of shale gas is still in starting stage,and have not found the actual hale gas reservoirs.There is still a big gap of technology development between China and abroad.Combining with specific characteristics of different types of organic-bearing mud shale and domestic and international experiences in shale gas exploration,it is primarily regarded that there has a more favorable shale gas resource potentiality in Shandong province.Prospective areas of shale gas in Shandong Province are Cenozoic paleogene Jiyang group,Wutu group and Guanzhuang group,Mesozoic early Cretaceous Laiyang group,Paleozoic Carboniferous-Permian Yuemengou group and Shihezi group.On the basis of considering occurrence strata,shale gas potentiality and feasibility of shale gas development,the potential areas of shale gas in Shandong province have been put forward as follows: Jiyang depression,Linqing depression,Jiaolai depression,Huangxian(Longkou) depression and hidden uplift in southwestern Shandong.Among them,the potentiality in Jiyang depression is the best.