美国页岩气压裂增产技术

页岩气是非常规气勘探开发的重要领域,并在美国取得了巨大成功。页岩气以吸附或游离状态为主要存在形式,形成于暗色高碳泥质烃源岩中。页岩气藏是典型的非常规天然气藏,它具有低渗透、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。美国页岩气开发采用了先进的压裂增产技术,页岩气产量逐年提高。水力压裂技术的改进主要是指各种压裂技术的涌现,如分段压裂技术、重复压裂技术、同步压裂技术和清水压裂技术等。

Fracture-stimulation technology of American shale gas

The exploration of shale gas is an important field of the non-conventional gas exploration and it has achieved great success in USA.Shale gas mainly accumulates in adsorbed and free phases.The shale gas reservoir formed in dark-colored high-carboniferous argillaceous hydrocarbon source rocks.Shale gas reservoir is a typical unconventional natural gas reservoir,which has low permeability,long production cycle and exploitation life.As a kind of effective and clean energy,shale gas may bring us tremendous econ...