富县探区上古生界致密砂岩气层识别方法研究  

Methods for Recognizing Upper Paleozoic Compacted Sandstone Gas Reservoirs in Fuxian Exploration Region

作　　者：刘艳[1] 王立新[1] 郑新管[2] 杜淑艳[1] 刘星普[1] 刘红星[1] 

机构地区：[1]中原石油勘探局地球物理测井公司,河南濮阳457001 [2]中原石油勘探局地质录井处,河南濮阳457001

出　　处：《石油天然气学报》2005年第3期355-357,共3页Journal of Oil and Gas Technology

摘　　要：富县探区上古生界储层属于低孔低渗的致密含气砂岩储层,具有许多不同于常规天然气储层的测井响应特点。针对该区的储层地质特点以及各种测井方法在气层的不同响应特征,提出了核磁共振、三孔隙度重叠、差值或比值法、声波时差差值法等几种适合该区的天然气识别方法。并在实际资料解释中进行应用,取得了比较满意的效果。The Upper Paleozoic reservoirs in Fuxian exploration region belong to compacted gas-bearing sandstone reservoirs with low porosity and low permeability, has many characteristics different with conventional natural gas reservoirs. In consideration of the geologic properties of reservoirs and the different response characteristics of various logging methods to the gas reservoirs. Methods which are suitable for gas recognition in the region are proposed, which include nuclear resonance log, 3 porosity overlay log, differential or proportionality method, interval transit-time differential. These methods are used in data interpretation, of which satisfied effects are achieved.

关 键 词：致密砂岩 气层识别 三孔隙度测井 核磁共振 富县探区 

分 类 号：P631.81[天文地球—地质矿产勘探] P618.13[天文地球—地质学]