渭河地堑油气地质基本问题  

Discussion of Basic Problems of Petroleum Geology in Wei River Graben

作　　者：郭忠铭[1] 朱兆信[1] 孟淑霞[1] 

机构地区：[1]中国石油长庆油田公司

出　　处：《低渗透油气田》2010年第3期24-29,共6页

摘　　要：渭河地堑历经50年的油气勘探未获得突破，对其舍油气远景分歧较大。研究认为盆地古近系是油气勘探盲区，对含油气前帚有待逐步认识；新近系含氦天然气，虽然氦含量高，但天然气产量低，分布很局限，不宜作为主要勘探对象；盆地新近系张家坡组生物气虽然分布面积小、烃源岩厚度小、远景资源量小，但仍可作为一个勘探领域，其保存条件和储层条件应引起重视，主要问题是构造圈闭不落实，需作大量高分辨率的地震工作。After 50 years of oil and gas exploration in the Wei river graben, no breakthrough has been obtained, so the oil/gas prospects are on a big divergence. The authors believe that the Ordos basin, oil and gas exploration is a blind spot, the oil and gas prospects to be gradually realized. Neogene although helium gas with high content of helium, but low gas production, distribution is limited, not as the main exploration targets. Although the Neogene biogas in Zhangjiapo Formation distributed in small area, small thickness of source rocks, potential resources, a small, but still as an exploration area, the preservation conditions and reservoir conditions attention should be paid, the main problem is the construction traps are not implemented, subject to the large number of high-resolution seismic work.

关 键 词：渭河地堑 古近系一新近系 含油气远景 生物气 合氯天然气 

分 类 号：P618.130.2[天文地球—矿床学]