摘要
根据国内外火山岩气藏勘探开发的成功实例,分析总结了一般火山岩气藏的地质特征和开发特征,即火山岩气藏岩石类型繁多和岩性复杂、孔隙结构复杂、储集空间类型特殊多样、孔隙度小、渗透率低并且孔隙度和渗透率差异大、储层非均质性严重、含气面积和有效厚度变化大、气水分布复杂、双重介质储层。着重分析了升平气田火山岩储层的地质特征和该火山岩气藏开发特点。指出了产量稳定、地层压力下降小,气井产量大小与裂缝关系等火山岩气藏一般开采特征。提出了火山岩气藏增产措施和储层保护措施。
According to the successful example of the exploration and exploitation for the volcanic rocks gas reservoir of domestic and overseas. Geologic feature and development characteristic of general volcanic rocks gas reservoir was analyzed and summarized. That is to say, volcanic rocks gas reservoir has numerous rock type, complex rock formation nature, complicated pore structure, special and diversified reservoir space, small porosity and low permeability. The differential of porosity and permeability was big. The reservoir heterogeneity was serious. The containing gas area and effective thickness change a lot. The gas-water distribution is complex. The reservoir is moderate porosity and low permeability double porosity reservoir. It is key to analyze the geologic feature and development characteristic of volcanic rocks reservoir for Shengping Gas- field. The yield of Shengping Gas- field is steady. The reservoir pressure of Shengping Gas- field declined a little. The output of gas well is closely related with fracture. The fracture spacing has an important guide meaning for well position deployment. The incremental production measure and reservoir protective measure of volcanic rocks gas reservoir was presented.
出处
《西南石油学院学报》
CAS
CSCD
北大核心
2006年第5期69-72,共4页
Journal of Southwest Petroleum Institute
关键词
火山岩气藏
地质特征
开发特征
地层压力
储集空间
volcanic gas reservoir
geological feature
development features
reservoir pressure
reservoir space
