摘要
页岩气储层综合表征技术作为页岩气勘探开发的核心技术之一,既是勘探开发评价的基础,又是工程工艺方案制定的重要参考依据。但我国页岩气勘探开发起步较晚,大规模商业开发直至2012年底焦页1井试气获工业气流后方才正式启动,加之与北美页岩气成熟开发区相比,地质地表条件复杂,因而页岩气储层综合表征技术的研究无成熟可借鉴的经验。为此,以页岩气与常规天然气储层的差异化分析为基础,重点依托涪陵页岩气田四年多来的开发实践,从沉积环境、生烃潜力、储集性、可压性及含气性等多个方面系统建立了页岩气储层的精细描述参数体系,明确了页岩气储层综合表征方法和技术手段;并进一步阐述了涪陵页岩气田五峰组—龙马溪组下部优质页岩气层段典型地质特征,可为类似页岩气田的勘探开发提供技术指导和示范借鉴。
The comprehensive characterization of shale gas reservoirs is considered as a key technology in shale gas exploration and development.It forms the basis of gas potential evaluation and is an important reference for formulating engineering technology evolution during the process of shale gas exploration and development.Compared with other countries,shale gas exploration and development in China started relatively late.Large-scale commercial development has not officially launched until the discovery of industrial gas flow of JY1 at the end of 2012.In contrast with shale gas development in North America,the geological and surface conditions are more complex in the south of China.Thus,there is limited experience for comprehensive reservoir characterization of shale gas in China.Based on the different analyses between shale gas and conventional gas reservoirs observed during four years of field practice in the Fuling shale gas field,we established a parameter system including aspects of the sedimentary environment,hydrocarbon generation potential,reservoir quality,compressibility and gas-bearing properties to identify the specific characteristics or technical means for shale gas reservoir description.Further,research suggested the typical geological characteristics of the high gas-bearing interval of Wufeng-Longmaxi formations that provide guidance for shale gas exploration and development in similar areas.
作者
孙健
包汉勇
SUN Jian;BAO Hanyong(SINOPEC Jianghan,Oilfield Company,Qianjiang,Hubei 433124,China;Research Institute of Petroleum,Exploration and Development,SINOPEC,Jianghan,Oilfield Company,Wuhan,Hubei 430223,China)
出处
《石油实验地质》
CAS
CSCD
北大核心
2018年第1期1-12,共12页
Petroleum Geology & Experiment
基金
国家科技重大专项(2016ZX05060)
中国石化科技项目(P17014-2)资助
关键词
页岩气
储层
表征技术
优质气层段
涪陵页岩气田
四川盆地
shale gas
reservoir
characterization technology
high gas-bearing interval
Fuling shale gas field
Sichuan Basin
