低阻低气测油层测录井多元综合评价方法  

A multiple comprehensive evaluation method based on well logging for oil layers with low resistivity and low gas

作　　者：杨飞 刘娟霞 尚锁贵 王建立 杨露 YANG Fei;LIU Juanxia;SHANG Suogui;WANG Jianli;YANG Lu(China-France Bohai Geoservices Co.,Ltd.,Tianjin 300452;Tianjin Branch,CNOOC Limited(China),Tianjin 300452)

机构地区：[1]中法渤海地质服务有限公司,天津300452 [2]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《长江大学学报(自然科学版)》2025年第1期40-46,共7页Journal of Yangtze University(Natural Science Edition)

摘　　要：渤海C油田馆陶组同时发育高阻高气测油层和低阻低气测油层,部分油层的电阻率和气测值低至与相邻水层接近,对于测井或录井解释均存在很大难度。对目前业内常用的电阻率-气测全烃双标准识别方法进行优化,并融入在低阻低气测油层评价方面具有优势的地化录井技术,从测井、钻井液录井、岩屑录井3个方面制定相应的多参数解释标准,并建立“电阻率-气测全烃异常倍数-地化热解含油气总量”测录井三元评价图版。评价结果显示,馆陶组三类产能油层和两类非产能层均呈现较好的区间分布规律,大大提高了低阻低气测油层的解释符合率,尤其解放了大部分电阻率低于4Ω·m、气测全烃小于1.5%的特低阻低气测油层,有效指导了C油田馆陶组内部挖潜和开发生产。High resistivity and high gas oil layers and low resistivity and low gas oil layers are both developed in Guantao Formation of C oilfield in Bohai.The resistivity and gas values of some oil layers are as low as those of adjacent water layers,which are very difficult to recognize for logging and mud logging.Optimize the commonly used recognition method in the industry based on resistivity-total hydrocarbon gas and integrate the geochemical logging technology which has advantages in low gas reservoir evaluation.The corresponding multiple comprehensive fluid evaluation criteria are formulated from logging,drilling fluid logging and cuttings logging.And the ternary interpretation chart of resistivity-anomaly multiple of total hydrocarbon gas-oil and gas content detected by geochemical pyrolysis is innovatively established.The study shows that three types of productive reservoirs and two types of non-productive reservoirs in Guantao Formation present good interval distribution,which greatly improves the interpretation coincidence rate of low resistivity and low gas reservoirs.In particular,most ultra-low resistivity and low gas oil layers with resistivity less than 4Ω·m and total hydrocarbon gas less than 1.5%are liberated,which effectively guides the internal potential and development and production of Guantao Formation in C Oilfield.

关 键 词：渤海油田 馆陶组 低阻低气测油层 地化热解 测录井三元解释图版 

分 类 号：P631.84[天文地球—地质矿产勘探] TE132.14[天文地球—地质学]