The cold heavy oil production (CHOP) technology can be applied to form in-situ high permeable channels by mass sand inflow and allow the heavy oil to be produced by means of foam-oil effects.

• 而稠油出砂冷采技术通过大量出砂形成高渗流通道，并借助于泡沫油的作用等机理来开采稠油油藏，可以较好地解决热采中遇到的问题。