世界页岩气勘探开发技术及我国勘探前景

摘要

页岩气是一种重要的非常规气藏,在世界范围内分布广泛,近年来占天然气产量中的比例不断增加。页岩气具有低渗透、生产周期长和开采寿命长的特点。页岩气作为一种高效、清洁的能源,其中蕴藏着巨大的经济和环境效益。近年来随着水平钻井技术和各种压裂技术的改进,美国页岩气产量逐年提高,页岩气在美国能源供应体系中的重要作用日益显著。中国页岩气主要分布于我国的华北-东北地区、南部地区、西北地区和青藏地区等四大地区。我国对页岩气的研究与勘探开发正处于探索阶段,中国的许多盆地具有页岩气成藏的地质条件,具有很好的页岩气勘探开发前景。美国页岩气的快速发展为我国页岩气藏勘探开发和增产措施提供了可以借鉴的经验。%Shale gas is an important kind of unconventional natural gas resources,are widely distributed through the world and the proportion of natural gas production is increasing.Shale gas has low permeability,long production cycle and exploitation life.As a kind of effective and clean energy,shale gas may bring us tremendous economic and environmental benefits.In recent years,along with that a variety of fracturing technology and horizontal drilling technology improves,the U.S.A shale gas production has gradually increased and it will play an important role in the U.S.A.Shale gas in china is mostly distributed in north-northeast area,south area,northwest area and Qinghai-Tibet area of China.The research,exploration and development for shale gas are still at the exploratory stage in China.Many basins have the geological condition for forming shale gas.Therefore,the prospect of exploration and development for shale gas is very wide.The rapidly development of shale gas in America is worth learning for China and it can be learned and used for the shale exploration and development and stimulation in China.