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对火山岩裂缝特征进行研究是松辽盆地升平气田营城组火山岩低孔低渗裂缝性气藏开发地质研究的重要内容。借助野外地质考察、岩心观察、地震属性分析以及古地磁研究等多种方法,结合升平气田的断裂发育特征,从多方面综合描述了升平气田火山岩气藏裂缝发育情况,并研究了裂缝的有效性。结论认为:①岩心观摩技术及测井裂缝研究技术能够对裂缝进行定量研究;②研究区天然气裂缝发育,但多数被充填或半充填;③Ⅰ、Ⅱ类储层以气孔为主,裂缝不发育,Ⅲ类储层气孔不发育,裂缝较发育。
The study of the volcanic rock fracture characteristics is an important part of the geological study on the development of low porosity and permeability fractured gas reservoirs in Yingcheng Formation in Shengping gas field, Songliao Basin. Based on field geological investigation, core observation, seismic attribute analysis and paleomagnetic research, combined with the fault development characteristics of Shengping gas field, the fracture development of volcanic gas reservoirs in Shengping gas field has been comprehensively described, and the effectiveness of fractures . The conclusions are as follows: (1) Core observation techniques and logging fracture technology can quantitatively study fractures; (2) Natural gas fractures develop in the study area, but most of them are filled or semi-filled; (3) Type Ⅲ reservoir stomata are not developed, cracks more developed.