水井井周渗透性降低的原因及改善途径

Causes of Water Well Annular Permeability Reduction and Its Improving Measures

摘要:

论述了水井井周渗透性降低的原因，从钻井方法、冲洗液性能、建立人工过滤层、洗井等方面探讨了改善渗透性的措施。

Abstract:

Causes of water well annualer Dermeabilitv reduction are described.Measures to improve perrne- ability reduction are discussed in terms of the drilling method,fluid properties,artificial infiltration layer,and well flushing,etc.