Results 61 to 70 of about 138,527 (143)

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

Energy Science &Engineering, Volume 13, Issue 11, Page 5777-5798, November 2025.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou, Guangzhi Liao, Ruiqi Fan, Rui Mao, Xueli Hou, Nan Li, Zhilong He, Yushu Zhang, Lizhi Xiao   +8 more
wiley   +1 more source

Pore Structure and Its Controls of Shale in the Qingshankou Formation, Sanzhao Sag, Songliao Basin

Energies, 2023
The exploration and development of Gulong shale oil in the Songliao Basin has achieved a major breakthrough, with the result that a national shale oil demonstration area is being built. The shale in the Sanzhao Sag is abundant in organic matter and is an
Surong Zhang, Songtao Wu, Rukai Zhu, Jingya Zhang, Chang Liu, Tianshu Zhang, Yi Cai, Mengying Li, Ganlin Hua, Yuan Kang, Bo Wang   +10 more
doaj   +1 more source

Hydrocarbon Generation Characteristics and Geological Significance of Deep Organic‐Rich Shales in the Gulong Fault Depression, Songliao Basin, Northeastern China

Energy Science &Engineering, Volume 13, Issue 6, Page 2707-2719, June 2025.
ABSTRACT To evaluate the hydrocarbon generation characteristics and geological significance of deep‐source rocks in the Gulong Sag of the Songliao Basin and to identify the next exploration targets in the study area, this study focuses on the organic‐rich mudstones and shales from the deep formations of the Gulong Sag.
Bo Hu, Xiaomei Li, Jiajun Liu, Zhuang Cai, Hongyan Liu, Yan Xu, Fangwen Chen   +6 more
wiley   +1 more source

Study on Hydraulic Fracture Propagation of Strong Heterogeneous Shale Based on Stress‐Seepage Damage Coupling Model

Energy Science &Engineering, Volume 13, Issue 1, Page 309-322, January 2025.
The stress model of rock in the hydraulic fracturing process is developed to study the behavior of hydraulic fracture propagation in strong heterogeneous shale under the coupled action of stress and seepage. In heterogeneous shale reservoirs, strong heterogeneity is the main factor limiting the height propagation of hydraulic fractures.
Wei Liu, Lei Xiao, Yunbin Ke, Yang Zhi, Kangxing Dong   +4 more
wiley   +1 more source

Performance Optimisation of Low‐Damage Foam Fracturing Fluid System in Unconventional Reservoirs

International Journal of Chemical Engineering, Volume 2025, Issue 1, 2025.
Foam fracturing fluid is a prospective substitute for water‐based fracturing fluid, with the potential to effectively mitigate the adverse effects associated with unconventional reservoirs. However, the greenhouse effect caused by CO2 accumulation and CO2 utilisation represents a significant challenge, limiting the fracturing efficiency of ...
Xuefeng Gong, Liping Mu, Lirong Liu, Li Qingchao   +3 more
wiley   +1 more source

Analysis of inter-well interference and well spacing optimization for horizontal wells in Gulong terrestrial pure shale oil

Petroleum Research
Gulong shale has abundant oil resources with low-porosity and low-permeability reservoir characteristics, and effective development has been achieved using horizontal well volume fracturing in single-well network deployment.
Lifeng Liu, Zhongbao Wu, Yuxiang Xiao, Zhenhua Xu, Huizhu Xiang   +4 more
doaj   +1 more source

Controlling factors for oil production in continental shales: A case study of Cretaceous Qingshankou Formation in Songliao Basin

Petroleum Research, 2023
Continental shale oil is widely distributed in the Cretaceous Qingshankou Formation of the Songliao Basin in Northeast China. In the Qijia-Gulong sag and the Changling sag in the Songliao Basin, breakthroughs of shale oil exploration and development have
Bo Zhou, Yuxiang Xiao, Zhengdong Lei, Rui Wang, Shuiqing Hu, Xiulin Hou   +5 more
doaj   +1 more source

In-situ porosity restoration of clay-rich lacustrine shale oil reservoirs and its implications for shale oil reserve evaluation

Petroleum Exploration and Development
To accurately evaluate the storage capacity of shale oil reservoirs under in-situ temperature and pressure conditions, we constructed a new model for determining the porosity under formation conditions, developed a HTHP shale porosity measurement system ...
Longde SUN, Fenglan WANG, Zihui FENG, Haiyong WANG, Binhui LI, Hang JIANG, Jijin YANG, Yong SU, Zhejun PAN, Huasen ZENG, Xiqing XU   +10 more
doaj   +1 more source

Geometrical characterization of the multiscale pore structure in clay-rich shale: A machine learning approach

Unconventional Resources
The pore structure of shale plays a critical role in hydrocarbon storage and flow; however, the microscale complexity of Gulong shale remains poorly characterized, limiting efficient resource exploitation.
Hongna Ding, Nuo Chen, Shirish Patil, Xin Liu, Xupeng He, Hongchun Ding, Zhejun Pan, Yuzhu Wang   +7 more
doaj   +1 more source

Research on the Shale Porosity–TOC Maturity Relationship Based on an Improved Pore Space Characterization Method

Energies
Shale pore structure characterization is key to shale reservoir evaluation, sweet spot selection, and economic exploitation. It remains a challenge to accurately characterize shale micro-nano pores.
Jianbin Zhao, Shizhen Ke, Weibiao Xie, Zhehao Zhang, Bo Wei, Jinbin Wan, Daojie Cheng, Zhenlin Li, Chaoqiang Fang   +8 more
doaj   +1 more source