塔里木盆地寒武系玉儿吐斯组烃源岩测井响应特征及有机碳含量预测  

Cambrian Yuertusi Formation source rocks in Tarim Basin Logging response characteristics and predict of organic carbon content

作　　者：马勇[1] 王谦 张卫峰 张晓明[1] MA Yong;WANG Qian;ZHANG Weifeng;ZHANG Xiaoming(Research Institute of Exploration and Development,Northwest Oilfield Company,SINOPEC,Urumqi,Xinjiang 830011,China)

机构地区：[1]中国石化西北油田分公司勘探开发研究院,新疆乌鲁木齐830011

出　　处：《内蒙古石油化工》2024年第11期91-95,共5页Inner Mongolia Petrochemical Industry

基　　金：中国石油化工股份有限公司科研项目成果报告,合同编号:P16090。

摘　　要：烃源岩的评价及预测是盆地资源量计算、目标优选的主要工作之一。[1]近年来在塔里木盆地塔河油田深层、顺北地区、塔中北坡顺南-古城地区等相继获得了一系列的油气勘探的重大突破和发现,塔里木古生界油气勘探向深层、超深层碳酸盐岩领域拓展,多口超深井取得了寒武系玉儿吐斯组烃源岩钻、录、测井等资料。寒武系玉儿吐斯组烃源岩中有机质具有特殊的物理性质,具有导电性差、密度低、声波时差大、自然伽马高等特点,测井资料上有明显的反应。利用测井资料纵向分辨率高且连续性强的特点,总结分析了烃源岩在主要测井系列上的响应特征。利用岩石物理商业软件,采用回归法、重叠法、多方法组合方法对寒武系玉儿吐斯组有机碳含量进行估算,并对各井估算结果进行统计分析。测井资料有机碳含量估算结果弥补了岩心资料局限性和地层非均质性带来的差异。The evaluation and prediction of source rock is one of the main tasks in the calculation of basin resources and the optimization of target.In recent years,a series of major breakthroughs and discoveries in oil and gas exploration have been made in the deep field of Tahe Oilfield,Shunbei-Shuntuo area,and the Gucheng-Shunnan area of the north slope of Tazhong,etc.The Paleozoic oil and gas exploration in Tarim has expanded to the deep and ultra-deep carbonate rock fields,and a number of ultra-deep Wells have obtained the source rock drilling,logging and logging data of the Cambrian Yuertusi Formation.The organic matter in the source rocks of the Cambrian Yuertusi Formation has special physical properties,such as poor electrical conductivity,low density,large sonic time difference and high gamma ray,and there are obvious responses in the logging data.This paper summarizes and analyzes the response characteristics of the source rocks in the main logging series by using the characteristics of high longitudinal resolution and strong continuity of the logging data.By using the powerful function of the commercial software of rock physics,the organic carbon content of the Cambrian Yuertusi Formation is estimated by regression method,overlap method and multi-method combination method,and the estimated results of each well are statistically analyzed to make up for the differences caused by the limitation of core data and formation heterogeneity.

关 键 词：塔河油田 烃源岩 测井评价 有机碳 超深层 

分 类 号：P631.81[天文地球—地质矿产勘探]