乍得Bongor盆地潜山岩性识别及储层测井综合评价  

Lithology Identification and Well-logging Comprehensive Evaluation of Basement Reservoir in Bongor Basin,Chad

作　　者：王楠 WANG Nan(Geological Research Institute of Great Wall Drilling Company,Petro China,Panjin 124010,China)

机构地区：[1]中国石油长城钻探地质研究院

出　　处：《科学技术与工程》2019年第27期66-73,共8页Science Technology and Engineering

基　　金：中国石油天然气集团公司科技攻关项目(2013D-902)资助

摘　　要：潜山油藏作为非常规油藏之一,近年来随着研究的深入,陆续实现突破。Bongor盆地2013年首次发现潜山油藏,针对该盆地潜山岩性复杂,储集空间多样,储层识别和评价难度较大的问题,通过对大量的岩心数据进行分析,基本厘清了Bongor盆地潜山岩性,通过分析不同岩性的测井响应特征,确定了岩性识别定量标准。在此基础上通过岩石力学实验分析其力学性质,优选出了优势岩性,并利用常规测井曲线,结合全烃值和峰基比的方法,首次建立了该盆地潜山油藏储层和油层定性定量识别标准,取得了较好的应用效果。Being one of the unconventional reservoirs,some breakthroughs were achieved in buried-hill reservoir.High production industrial oil flow was tested in Bongor basement reservoir first in 2013.As buried hill reservoir was discovered first in this basin,reference data was limited,so a series of challenges aroused,especially in lithology identification,reservoir space description,reservoir identification and evaluation.Based on the analysis of a large number of core data,the basement lithology in Bongor basin was basically clarified.According to the logging responses of different lithologies,the logging lithology identification criteria were established to analyze their mechanical properties and find out lithologies easy to develop fractures.Combing logging response,whole hydrocarbon value,and hydrocarbon peak to baseline ratio,reservoir and fluid property identification criteria were established firstly in Bongor Basin and show good application result.

关 键 词：Bongor盆地 潜山油藏 岩性识别 储层识别 油层识别 

分 类 号：P585[天文地球—岩石学]