鄂尔多斯盆地北部上古生界陆相含煤碎屑岩系隐蔽气层的识别研究  

Identification of Hidden Gas Reservoir of Upper Paleozoic Terrestrial Coal Clastic Rock in Northern Ordos Basin

作　　者：林耀庭[1] 宁松华[2] 

机构地区：[1]长江大学地球物理与石油资源学院,湖北荆州434023 [2]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023

出　　处：《石油天然气学报》2012年第2期76-79,92,共5页Journal of Oil and Gas Technology

基　　金：国家"973"规划项目(2007CB209600)

摘　　要：地震数据体结构特征油气预测方法是通过提取地震道的振幅数值,研究其数据排列、组合结构特征与含油气性的关系,以达到定量或半定量预测油气层的目的。针对鄂尔多斯盆地北部上古生界陆相含煤碎屑岩系隐蔽气藏(大牛地气田)成藏控制因素不清,背斜构造和含气特征不明显,无断层作用等特点,利用地震数据体结构特征油气预测法对该区上古生界陆相含煤碎屑岩系的盒2段和盒3段砂岩气层进行了油气预测。结果表明,大牛地气田盒2段和盒3段砂岩气层具有明显的地震数据体结构异常响应特征,并在此基础上,划分了8个有利含气区块,部署了一系列开发井,钻井成功率达85%,取得了显著的经济效益。Hydrocarbon prediction by applying the structural characteristics of seismic data was a new reservoir prediction technique.The data arrangement and the correlation between their assemblage structural characters and oil-bearing property were studied for the purpose of quantitative and half-quantitative prediction of reservoirs.In allusion to characters of unclear control factors of reservoir formation of hidden reservoirs of upper Paleozoic terrestrial coal clastic rocks(Daniudi Gas Field),the anticlinal structure and oil-bearing property being not obvious without fault action,seismic data were used to predict the structural characteristics Ph2 and Ph3 sandstone gas reservoirs of the upper Palaeozoic terrestrial coal clastic rock.The result indicates that there are obvious abnormal seismic data structural characteristics in Ph2 and Ph3 sandstone gas reservoirs,and on the basis stated,8 favorable gas-bearing zones are divided,a series of development wells are arranged,drilling success rate is up to 85%,obvious economic benefit is obtained.

关 键 词：地震数据体结构 灰色异常 关联分析 油气预测 

分 类 号：P618.13[天文地球—矿床学]