关键词: 火山岩, 岩性岩相, 储集空间, 储层, 气藏类型, 升平气藏

Abstract: The deep volcanic gas reservoir in Shengping area is discovered in Daqing Oilfield for the first time. Some profound understandings have been achieved in lithology, lithofacies, types of reservoir space, reservoir distribution, fluid distribution, types of gas reservoirs and so on after more than two years' prophase evaluation, and a suit of technologies have been formed, which including the description technique for volcanic lithology and lithofacies, well logging recognition technique for volcanic lithology and fluid property, the seismic recognition technique for volcanic body and the description technique of volcanic reservoir space. With the techniques, it describes in detail Shengping gas reservoirs concerning about the model of volcanic lithology and lithofacies, the types of reservoir space, space distribution of reservoirs and the types of gas reservoir, and determines the eruption mechanism of volcano, reservoir classification, reservoir space feature and gas reservoir's type, laying a firm foundation for gas development project and also having an important significance in evaluating the resources prospect in this area.

Key words: volcanic rock, lithology and lithofacies, reservoir space, reservoir, gas reservoir type, Shengping gas reservoir