柴东地区生物气藏储盖层定量评价  

Quantitative evaluation of reservoir-cap rocks in the biogas reservoir of eastern Qaidam Basin

作　　者：曹倩[1] 金强[1] 程付启[2] 王力[3] 

机构地区：[1]中国石油大学,山东东营257061 [2]中石化胜利油田分公司,山东东营257015 [3]中油冀东油田分公司,河北唐山063004

出　　处：《特种油气藏》2009年第4期37-40,共4页Special Oil & Gas Reservoirs

基　　金：中国石油天然气股份公司项目"低熟气;生物气富集规律与资源评价技术"(2001CB209102)部分内容

摘　　要：柴达木盆地东部地区第四系生物气藏储盖层目前仍处于成岩初期,为了对其进行定量评价,综合考虑储盖层岩性、物性及含气性基础上,选取排替压力、泥质含量、孔隙度和含气饱和度作为评价参数,并建立了各参数的测井计算模型,提出了储盖层有效性的多参数综合评价方法,给出了储盖层评价标准。采用该方法对研究区涩北一号、涩北二号、台南、台吉乃尔、盐湖等5个气田储盖组合有效性进行评价,评价结果与生物气分布吻合,证明评价方法有效。The reservoir-cap rocks of the Quaternary biogas reservoirs in eastern Qaidam Basin are still in their early diagenetic process. Quantitative evaluation has been conducted by comprehensively considering lithology, physical properties and gas-bearing property. The evaluation parameters include displacement pressure, shale content, porosity and gas saturation. Logging calculation models are set up respectively for each parameter. Multi-parameter comprehensive evaluation method and criterion are presented for the effectiveness of reservoir-cap rocks. This method has been applied to 5 gas fields in the study area including Sebei I, Sebei II, Tainan, Taijnar, and Salt Lake. The evaluation result is consistent with biogas distribution, indicating the effectiveness of this method.

关 键 词：储盖层 评价参数 综合评价 生物气藏 柴东地区 

分 类 号：TE122.2[石油与天然气工程—油气勘探]