松辽盆地古龙页岩油储层岩性识别与流体评价技术  

Lithology identification and fluid evaluation techniques for the Gulong shale oil reservoirs in Songliao Basin

作　　者：梁久红 张丽艳[1] 韩冰冰[1] 杨世亮[1] 李博[1] 刘文精 张艳茹 陈晓晓[1] 郭晶[1] 董黛莉 LIANG Jiuhong;ZHANG Liyan;HAN Bingbing;YANG Shiliang;LI Bo;LIU Wenjing;ZHANG Yanru;CHEN Xiaoxiao;GUO Jing;DONG Daili(No.1 Geological Mud Logging Company of Drilling Engineering Company of Daqing,Daqing 163411,China)

机构地区：[1]大庆钻探工程公司地质录井一公司,黑龙江大庆163411

出　　处：《大庆石油地质与开发》2020年第3期163-169,共7页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份公司重大科技专项“松辽盆地北部石油精细勘探技术完善与规模增储”(2016E-0201)。

摘　　要：松辽盆地古龙页岩油储层岩性组合复杂、非均质性强、孔隙流体赋存状态多样,这些特殊性造成储层岩性精细识别及流体准确评价难度大。为了有效解决研究区岩性识别和流体评价的难题,综合应用宏观观察、元素分析、薄片鉴定等岩性识别技术,总结典型岩性各项技术响应特征,建立起页岩油岩性识别组合技术,实现页岩油储层岩性精细识别;选取能够评价轻质烃类的气测录井、轻烃分析、岩石热解分析等技术的关键参数,将评价参数分别赋予不同权重,建立页岩油储层含油性综合指数,应用综合指数对页岩油储层含油性进行准确评价,取得了较好效果。研究成果为松辽盆地古龙页岩油储层后期精细评价和“甜点”层段优选提供了重要的技术依据。Gulong shale oil reservoirs of Songliao Basin are characterized by complex lithology combination,strong heterogeneity and various occurrence states of the pore liquids,these particularities lead to the big difficulties in the fine identification of the reservoir lithology and accurate evaluation of the liquids.In order to effectively solve the problems stated above in the study area,with the help of the comprehensive application of the lithology identification technologies such as the macroscopic observation,elemental analysis,thin section identification and so forth,various technical response characteristics of the typical lithology were summarized,the combined technique of the shale oil lithology identification was established,thus the fine identification of the shale oil reservoir lithology was realized.The key parameters of the gas logging,light hydrocarbon analysis,rock pyrolysis analysis and other techniques,which can evaluate the light hydrocarbon,were chosen to respectively assign different weights and establish the comprehensive index of the shale oil reservoirs and then the comprehensive index was applied to accurately evaluate the oil-bearing property of the shale oil reservoirs,finally the much better effects were achieved.The study achievements have provided the important technical evidences for the late fine evaluation and“sweet spot”interval optimization in Gulong shale oil reservoirs.

关 键 词：页岩油 岩性识别 元素分析 X射线衍射全岩分析技术(XRD) 流体评价 气测录井 岩石热解 轻烃分析 

分 类 号：TE122[石油与天然气工程—油气勘探]