四川盆地五百梯地区长兴组生物礁发育特征及测井响应模式  

Development characteristics of biological reefs and logging response patterns of the Changxing formation in the Wubaiti area of Sichuan basin

作　　者：裴文彬 张兵[1] 林晓杨 华青[2] 李虹[2] 王昱珩 PEI Wenbin;ZHANG Bing;LIN Xiaoyang;HUA Qing;LI Hong;WANG Yuheng(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation/Chengdu University of Technology,Chengdu 610059,China;Geological Exploration and Development Research Institute of Sichuan Petroleum Administration,Chongqing 400021,China)

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,成都610059 [2]中国石油西南油气田分公司重庆气矿,重庆400021

出　　处：《物探化探计算技术》2023年第2期210-220,共11页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：西南油气田分公司科研项目(XNS02JS2019-0164)。

摘　　要：为进一步厘定四川盆地五百梯地区长兴组生物礁发育的特征以及响应模式,通过运用岩心、薄片和测井曲线等资料,对川东五百梯长兴组生物礁发育模式进行了系统的探究和总结,明确了研究区生物礁具有“纵向叠置,横向迁移”的规律,生物礁期次由西向东逐渐递减;在此基础上建立了地质-测井一体化的生物礁响应模式。基于分析认为在川东五百梯生物礁亚相中,礁基对应的测井相为漏斗型、礁核对应的测井相为箱型、礁盖对应的测井相为钟型,其中“礁核+礁盖”对应的C型为储层最为发育的测井相响应模式。To further determine the development characteristics and response model of reefs of Changxing Formation in the wubaiti area,Sichuan Basin.Based on the data of drilling cores,microscopic thin sections,and conventional logging curves,this paper systematically studies and summarizes the development characteristics of reefs in Wubaiti Changxing Formation in eastern Sichuan;it is clear that the reefs in the study area have the law of"vertical superposition and horizontal migration,"and the stages of reefs gradually decrease from west to East;On this basis,a reef response model integrating geology and logging is established.Based on the analysis,it is considered that in the Wubaiti reef subfacies in eastern Sichuan,the logging facies corresponding to the reef base is finger type,the logging facies corresponding to the reef core is box type,and the logging facies corresponding to reef cover is funnel type;Type C corresponding to"reef core+reef cap"is the logging facies response model with the most developed reservoir;Type C corresponding to"reef core+reef cap"is the logging facies response model with the most developed reservoir.

关 键 词：四川盆地 长兴组 生物礁 礁基 礁核 礁盖 测井相模式 

分 类 号：P631.4[天文地球—地质矿产勘探]