蒸汽辅助重力泄油技术在油砂开采中的应用OA北大核心CSCDCSTPCD

The reserves of the oil sand in China is ranked the tops of the world but how to effectively and economically extract it and perfect the matching techniques are the facing issures met today. The main mining methods and characteristics of oil sand at present are compared and analyzed, the mining technologies, principles and patterns of well spacing of steam-assisted gravity drainage ( SAGD) of the oil sand are focused. Through the successful application in Canadian Christina Lake Oilfield, the technique is proven to be an effective way to produce the oil sand in the deep part. The distribution of the oil sand and reservoir characteristics in China are analyzed. In light of the buried depth and the characteristics of the oil quality, the reasonable production recommendations are presented. Researches and successful application of the oil-sand SAGD techniques stated above will promote the development and ultility of oil sand resources in China.