川中广安地区上三叠统须家河组四段储气层预测研究  

The T_3x_4 Reservoir Prediction in Guang'an Area of Central Sichuan

作　　者：张艳芳[1] 王权锋[2,3] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]成都理工大学数学地质四川省重点实验室,四川成都610059 [3]中国石油大学(北京)地球科学学院,北京102249

出　　处：《石油天然气学报》2013年第3期67-71,165-166,共5页Journal of Oil and Gas Technology

基　　金：国家油气重大专项(2008ZX05030-05-001);国家重点基础研究规划"973"项目(2006CB202300)

摘　　要：川中广安地区须家河组在钻探中油气显示频繁,勘探潜力巨大,对广安地区上三叠统须家河组须四段(T3x4)开展油气检测研究十分必要。首先,在分析研究区T3x4储层地球物理特征的基础上,根据已知钻遇出气层段、最新地质、钻井、测井等资料,开展研究区T3x4储层预测,研究该地区T3x4储层厚度、孔隙度;其次,根据地下双相介质的地震响应存在"低频共振,高频衰减"的现象,检测研究区T3x4有利含油气范围的分布;最后,根据储层预测结果和油气检测成果,确定了有利勘探区域,对扩大勘探领域、寻找新的勘探区具有重要的现实意义。Oil and gas were frequently displayed during the well drilling in Xujiahe Formation in Guang'an Area of central Sichuan and exploration potential was tremendous.Therefore It was very necessary to study the oil and gas detection in the fourth member of Xu'jiahe Formation.First of all,based on the analysis of geophysical characteristics of the member of Xujiahe Formation and according to the data of the known drilling in the gas section,the latest geologic drilling and well logging data,T3x4 gas reservoir was predicted,thickness and porosity of the fourth member of Xujiahe Formation was studied.Secondly,according to the phenomenon of 'low frequency resonance,high frequency attenuation' of seismic response of the underground two-phase medium,the area of favorable oil and gas distribution was detected in the fourth member of Xujiahe Formation.Finally,based on the results of reservoir prediction and oil and gas detection,the favorable exploration areas are determined.It has important practical significance for expanding exploration domain and looking for new exploration areas.

关 键 词：广安地区 须家河组四段 储层预测 流体检测 

分 类 号：P618.13[天文地球—矿床学]