緻密氣

一般緻密氣藏通常定義為基質滲透率低於 0.1 毫達西 (mD) 和基質孔隙度低於 10%Ben E. Law and Charles W. Spencer, 1993, "Gas in tight reservoirs-an emerging major source of energy," in David G. Howell (ed.), The Future of Energy Gasses, US Geological Survey, Professional Paper 1570, pp. 233–252Ali Sharif, Tight gas resources in Western Australia, Western Australia Department of Mines and Petroleum, Sept. 2007。
緻密氣最常在砂岩，但有時在石灰岩。緻密氣被認為是一種非常規天然氣資源。緻密砂岩多屬古生代地層。因受長期地質作用，降低了岩石的滲透性，天然氣被困在這些岩層中。水平鑽井和水力壓裂 一般被常用於緻密砂岩的氣田開發。水平鑽井可增加生產管在岩層中長度，水力壓裂可增加岩層的破裂帶能加速氣體流動。故兩者實施可增加氣田產能McCoy, Mark; W. Neal Sams (2007). "Tight Gas Reservoir Simulation: Modeling Discrete Irregular Strata-Bound Fracture Networks and Network Flow, Including Dynamic Recharge from the Matrix" (PDF). National Energy Technology Laboratory. Retrieved 27 October 2011。

參考文獻

分類:石油地質學