孤北地区石炭-二叠系煤系气储层物性特征分析  

Permo-Carboniferous Coal Measures Gas Reservoir Physical Property Features Analysis in Gubei Area

作　　者：穆瑞峰 王平丽[1] 徐春华 赵永福 刘海燕[1] 刘莹[1] Mu Ruifeng;Wang Pingli;Xu Chunhua;Zhao Yongfu;Liu Haiyan;Liu Ying(College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao,Shandong 266590;Oil and Gas Exploration Management Center,Shengli Oilfield Branch,SINOPEC,Dongying,Shandong 257000)

机构地区：[1]山东科技大学,山东青岛266590 [2]中国石油化工股份有限公司胜利油田分公司油气勘探管理中心,山东东营257000

出　　处：《中国煤炭地质》2020年第11期6-9,39,共5页Coal Geology of China

基　　金：国家自然科学基金项目“不同盆地背景下细粒沉积微细纹层成因机制与演化模式的比较研究(41672096)”;中国石油化工股份有限公司胜利油田分公司油气勘探管理中心项目(30200384-19-ZC0613-0023)。

摘　　要：孤北地区煤系气产量丰富,储层类型多样,是济阳坳陷深层天然气较为富集的地区之一。基于碎屑岩粒度分析、岩心常规分析、连井剖面分析等方法,通过对孤北地区储层岩性特征与分布、孔隙度与渗透率、埋深、粒度中值以及煤系气聚集的地质基础等研究,利用济阳坳陷孤北地区孤北古1、孤北古2、孤北古3井等相关资料,阐述孤北地区储层物性特征。结果表明:孤北地区石炭-二叠系平均孔隙度为8.6%,平均渗透率为0.7×10^-3μm^2,为特低孔低渗型储层;主要储集层为二叠系上石盒子组奎山段、万山段、下石盒子组,山西组砂岩,其中奎山段储层最优。Coal measures gas resources in the Gubei area is abundant with high yield and diversified reservoir types,thus the one of deep natural gas enriched areas in the Jiyang depression.Based on clastic rock grain size analysis,core routine analysis and cross well section analysis etc,through studies on reservoir lithological features and distributions,porosity and permeability,buried depth,grain size median,as well as coal measures gas accumulation geological basis in the area,used related data from wells Gu1,Gu2 and Gu3 in Gubei area,Jiyang depression have expounded reservoir physical property features in the area.The result has shown that Permo-Carboniferous rock mean porosity is 8.6%,mean permeability 0.7×10^-3μm^2,thus is low porosity and low permeability reservoir.Main reservoirs have Permian Shangshihezi Formation Kuishan and Wanshan members,Xiashihezi Formation and Shanxi Formation sandstone,in which,Kuishan member reservoir is the best.

关 键 词：石炭-二叠系 储层物性 煤系气 孤北地区 

分 类 号：TE132.2[石油与天然气工程—油气勘探]