石油勘探与开发 >

2021 , Vol. 48 >Issue 5: 891 - 902

DOI: https://doi.org/10.11698/PED.2021.05.02

油气勘探

非常规油气勘探测井评价技术的挑战与对策

  • 刘国强
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  • 中国石油勘探与生产分公司,北京 100007
刘国强（1964-）,男,江西鄱阳人,博士,中国石油勘探与生产分公司教授级高级工程师,主要从事油气藏测井评价研究。地址：北京东城区东直门北大街9号石油大厦,中国石油勘探与生产分公司,邮政编码：100007。E-mail：lgqi@petrochina.com.cn

收稿日期: 2020-10-17

  网络出版日期: 2021-09-17

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Challenges and countermeasures of log evaluation in unconventional petroleum exploration

  • LIU Guoqiang
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  • Exploration and Production Company, PetroChina, Beijing 100007, China

Received date: 2020-10-17

  Online published: 2021-09-17

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摘要

为促进测井评价技术及时有效地适应中国非常规油气勘探开发的发展趋势,系统地分析当前中国测井评价技术的现状及其面临的挑战,立足于需求驱动技术发展的理念,并对标国际领先技术,提出了中国非常规油气测井评价技术的发展对策。①深化岩石物理实验研究,研发移动式全直径岩心二维核磁实验分析技术,系统建立不同流体性质、不同孔隙结构和不同散逸时间的纵向与横向弛豫谱特征图版和评价标准;深入开展数字岩心实验与数学物理模拟研究,指导测井评价新方法的创建;研发声电各向异性实验分析技术并创建相应的测井评价方法。②强化测井资料的目标化处理,攻关研究二维核磁共振测井精细反演处理技术与敏感信息拾取技术,精细描述致密储集层的微细孔隙分布以准确识别可动油、束缚油和束缚水等多类型流体;攻关研究水平井方位超远探测三维声波测井处理技术。③发展特色解释评价方法与技术,一是深化饱和度分布规律评价,创建近源和源内非常规油气饱和度分布规律的量化描述方法与数学模型;二是攻关研究分别以可动油含量和含气量为核心的页岩油和深层页岩气甜点评价方法与识别标准;三是完善发展欠压实作用和烃浓度充注两种高压成因机制下的孔隙压力计算方法;四是创建融合储集层品质和工程品质的地层可压裂性评价技术以及综合应力隔层与岩性隔层评价的水平井分段分簇方案优选技术。图5表2参36

关键词： 非常规油气; 测井; 数据处理; 解释评价; 岩石物理实验; 油气甜点

本文引用格式

刘国强 . 非常规油气勘探测井评价技术的挑战与对策[J]. 石油勘探与开发, 2021 , 48(5) : 891 -902 . DOI: 10.11698/PED.2021.05.02

Abstract

To promote adaptation of logging evaluation technologies to the development trend of unconventional oil and gas exploration and development era in China, the current situation and challenges of logging evaluation technologies in China are analyzed systematically. Based on the concept of that demand drives technology development, and referring to the international leading technologies, development strategy of logging evaluation technology in China has been put forward. (1) Deepen petrophysics study: mobile 2D NMR laboratory analysis technology for full diameter core should be developed, characteristic charts and evaluation standards of different fluid properties, different pore structures and different core exposure times should be established based on longitudinal and traverse relaxation spectra; in-depth digital rock experiment and mathematical and physical simulation research should be carried out to create innovative logging evaluation methods; acoustic and electrical anisotropy experimental analysis technology should be developed, and corresponding logging evaluation methods be innovated. (2) Strengthen target processing of logging data: precise inversion processing technology and sensitive information extraction technology of 2D NMR logging should be developed to finely describe the micro-pore distribution in tight reservoir and accurately distinguish movable oil, bound oil, and bound water etc. The processing method of 3D ultra-distance detection acoustic logging should be researched. (3) Develop special logging interpretation and evaluation methods: first, mathematical model for quantitatively describing the saturation distribution law of unconventional oil and gas near source and in source should be created; second, evaluation methods and standards of shale oil and deep shale gas “sweet-spots” with mobile oil content and gas content as key parameter separately should be researched vigorously; third, calculation methods of pore pressure under two high-pressure genetic mechanisms, under-compaction and hydrocarbon charging, should be improved; fourth, evaluation method of formation fracability considering the reservoir geologic and engineering quality, and optimization method of horizontal well fracturing stage and cluster based on comprehensive evaluation of stress barrier and lithologic barrier should be worked out.

Key words： unconventional petroleum; well logging; data processing; interpretation and evaluation; petrophysical experiment; hydrocarbon sweet spot

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