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《Natural Gas Industry》 2010-01
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A study on the development of tight gas reservoirs in the USA

Lei Qun,Wan Yujin,Li Xizhe,Hu Yong(Langfang Branch,PetroChina Petroleum Exploration and Development Research Institute,Langfang,Hebei 065007,China)  
The USA is one of the largest producers of tight sand gas in the world.In the last four decades,an integrated technology has been established,which includes gas reservoir description,well pattern thickening,stimulation,drilling and completion,etc.Its successful development practices provide valuable experiences for China to develop tight sand gas reservoirs.Based on the in-depth investigation into the reservoir characteristics,the development features and key technologies of tight sand gas reservoirs in the USA,several points of enlightenment have been achieved:a.Three-dimensional seismic technology can effectively improve the success rate of development wells;b.Well pattern thickening can effectively enhance the recovery of multi-layer and lenticular gas reservoirs;c.Separate layer fracturing in vertical wells is one of the main stimulations of tight sand gas reservoir development;d.Slim hole,quick drilling,simplification and optimization of surface facilities are the key methods to reduce the cost.These experiences will play a positive role in the development of low-permeability sandstone gas reservoirs in China.
【CateGory Index】: TE37
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