川东北普光地区礁滩型储层敏感性分析  

Sensitivity analysis of reef reservoir in Puguang area of Northeast Sichuan basin

作　　者：王海芳[1] 杨辉廷[1] 陈培元[1] 李郭琴[1] 刘瑜 

机构地区：[1]西南石油大学,四川成都610500 [2]中国石油川庆钻探工程有限公司地质勘探开发研究院,四川成都610051

出　　处：《油气藏评价与开发》2013年第5期13-16,40,共5页Petroleum Reservoir Evaluation and Development

基　　金："十二五"国家科技重大专项(2011ZX05017-001-HZ02);中国石油科技创新基金(2011D-5006-0105)

摘　　要：在对川东北普光地区长兴一飞仙关组礁滩型储层岩性、黏土矿物、物性特征研究的基础上,对研究区33套193个岩心进行岩石敏感性实验。结果表明:普光地区长兴—飞仙关组储层岩石速敏、水敏和碱敏的损害程度为弱—中等偏弱;盐敏对T_f_(1-2)储层的损害程度为中等偏弱—中等偏强,对P_2ch储层为零—弱;酸敏对T_f_(1-2)储层的损害程度为中等偏弱—强,对P_2ch储层为零—中等偏强。总体看来,川东北普光地区长兴—飞仙关组礁滩型储层的敏感性为弱到中等偏弱。该地区的储层敏感性研究为下一步的油气开采提供了依据。Based on the study of lithological, clay mineral and physical characteristics of the reef reservoir in Changxing-Feixian-guan formation of Puguang area, Northeast Sichuan, the sensitivity experiments of 33 sets, 193 cores in the study area are systemati-cally studied. The result shows that the damage degree of velocity sensitivity, water sensitivity and alkali sensitivity range from weak to medium（-）. That of salinity sensitivity to T1f1-2 reservoir is from medium（-） to medium（＋）, and to P2ch is 0 to weak. That of acid sensitivity to T1f1-2 reservoir is medium（-） to strong, and to P2ch is from 0 to medium（＋）. Overall, the sensitivity of the reef reservoir in Changxing-Feixianguan formation of Puguang area, Northeast Sichuan is weak to medium（-）. The sensitivity study of this area provides the basis for the further oil and gas exploitation.

关 键 词：长兴－飞仙关组 礁滩型储层 敏感性 普光地区 四川盆地东北部 

分 类 号：TE122.2[石油与天然气工程—油气勘探]