Research progresses of comprehensive well logging evaluation methods of tight gas sandstone reservoirs

Lai Jin; Song Xiangyu; Yang Xun; Zhao Yidi; Tian Yinhong; Li Dong; Xin Yi; Zhang Ronghu; Wang Guiwen

doi:10.7623/syxb202501015

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Research progresses of comprehensive well logging evaluation methods of tight gas sandstone reservoirs

更新时间：2025-10-10

- Research progresses of comprehensive well logging evaluation methods of tight gas sandstone reservoirs
- ACTA PETROLEI SINICA Vol. 46, Issue 1, Pages: 220-235(2025)
- 作者机构：
  
  1. 油气资源与工程全国重点实验室, 中国石油大学(北京),北京,102249
  2. 中国石油大学(北京)地球科学学院,北京,102249
  3. 中国石油集团测井有限公司测井技术研究院,北京,102206
  4. 中国石油塔里木油田公司勘探开发研究院,新疆,库尔勒,841000
  5. 中国石油杭州地质研究院,浙江,杭州,310023
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202501015
  CLC： TE151
- Published Online：15 February 2025，
  
  Published：2025
- 稿件说明：
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赖锦, 宋翔羽, 杨薰, 赵仪迪, 田银宏, 李栋, 信毅, 张荣虎, 王贵文. 致密砂岩气储层测井综合评价技术研究进展[J]. 石油学报, 2025, 46(1): 220-235.

Lai Jin, Song Xiangyu, Yang Xun, et al. Research progresses of comprehensive well logging evaluation methods of tight gas sandstone reservoirs[J]. Acta petrolei sinica, 2025, 46(1): 220-235.
赖锦, 宋翔羽, 杨薰, 赵仪迪, 田银宏, 李栋, 信毅, 张荣虎, 王贵文. 致密砂岩气储层测井综合评价技术研究进展[J]. 石油学报, 2025, 46(1): 220-235. DOI： 10.7623/syxb202501015.

Lai Jin, Song Xiangyu, Yang Xun, et al. Research progresses of comprehensive well logging evaluation methods of tight gas sandstone reservoirs[J]. Acta petrolei sinica, 2025, 46(1): 220-235. DOI： 10.7623/syxb202501015.

摘要

致密砂岩气是天然气勘探开发重点领域之一

但目前尚未建立完善的测井综合评价、地质与工程双"甜点"测井评价技术体系

制约了致密砂岩气勘探开发进程。通过阐述致密砂岩气储层储集空间、微观孔隙结构等特征

从构造(裂缝和地应力)、沉积和成岩角度揭示了储层品质主控因素。常规测井可以用于岩性识别、储层参数计算和流体性质判别

成像测井、核磁共振测井和阵列声波测井则可用于裂缝探测、孔隙结构分类及工程品质评价

同时可采用机器学习方法实现储层参数定量计算。根据储层沉积微相、成岩特征、裂缝和孔隙结构的叠加可实现储层品质测井分类评价

致密砂岩气测井评价重点在于基质孔隙结构和裂缝测井识别与评价。最后通过储层参数、孔隙结构、裂缝、地应力和脆性等耦合实现致密砂岩地质与工程"甜点"测井分类评价。利用地球物理测井资料实现致密砂岩气储层综合评价与预测

可为气藏勘探开发提供理论指导与技术支撑。

Abstract

Tight sandstone gas is a key filed of natural gas exploration and development. However

there is yet no perfect technical system for comprehensive well logging evaluation as well as logging evaluations of both geological and engineering sweet spots

thus limiting the exploration and exploitation process of natural gas. This study clarifies the characteristics of storage spaces and micro-pore structures in tight sandstone gas reservoirs. It also reveals the primary controlling factors for reservoir quality from the perspectives of tectonics (fractures and in-situ stress)

sedimentation and diagenesis. Conventional well logs can be used for lithology identification

reservoir parameter calculation

and fluid property discrimination; moreover

image logs

nuclear magnetic resonance logs

and array acoustic logs can be applied to fracture detection

pore structure classification

and engineering quality evaluation. Additionally

machine learning methods can be employed to quantitatively calculate reservoir parameters. The well logging classification evaluation of reservoir quality can be achieved through the combination of sedimentary microfacies

diagenetic characteristics

fractures and pore structures. Moreover

in terms of the well logging evaluation for tight sandstone gas

a focus is put on the well logging identification and evaluation of matrix pore structures and fractures. Finally

the well logging classification evaluation of geological and engineering sweet spots in tight sandstone is achieved through the coupling of reservoir parameters

pore structures

fractures

in-situ stress

and brittleness. The comprehensive evaluation and prediction of tight sandstone gas reservoirs has been realized using geophysical well log data

which can provide theoretical guidance and technical support for gas reservoir exploration and development.

关键词

Keywords

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