Results 71 to 80 of about 138,527 (143)

Application of the Fractal Method to the Characterization of Organic Heterogeneities in Shales and Exploration Evaluation of Shale Oil

Journal of Marine Science and Engineering, 2019
The first member of the Qingshankou Formation, in the Gulong Sag in the northern part of the Songliao Basin, has become an important target for unconventional hydrocarbon exploration.
Bo Liu, Liangwen Yao, Xiaofei Fu, Bo He, Longhui Bai   +4 more
doaj   +1 more source

Optimization of Volumetric Fracturing Stages and Clusters in Continental Shale Oil Reservoirs Based on Geology-Engineering Integration

Energies
The exploration and development of shale oil offers significant potential as an alternative to address oil and gas supply. The complex geological conditions characterized by inter-lithology and strong heterogeneity pose substantial challenges in ...
Jiangang Cao, Meng Cai, Jinbo Li, Zheng Guo, Xuepeng Jiang, Guohao Dong   +5 more
doaj   +1 more source

Drilling Fluid Technology for Test Well with Ultra-Long Horizontal Section in Shale Oil Block Gulong

Zuanjingye yu wanjingye
With the development of the “Daqing Gulong Continental Shale Oil National Demonstration Zone”, wells with ultra-long horizontal sections are drilled to evaluate the correlation between the length of the horizontal section and the oil and gas production ...
Chunwu GONG, Nuo XU, Yang SHENG, Xu LIU, Changli QI, Bo LI   +5 more
doaj   +1 more source

Study on settling characteristics of rock cuttings from terrestrial high clay shale in power-law fluid

Frontiers in Energy Research
In the process of oil and gas drilling, it is of great significance to accurately predict the drag coefficient and settling rate of cuttings in the drilling fluid for hydraulic parameters and borehole cleaning.
Qing Wang, Qing Wang, Jiawei Zhang, Jiawei Zhang, Chenguang Bi, Xiaoao Liu, Xiaoao Liu, Guodong Ji, Guodong Ji, Jinping Yu, Jinping Yu   +10 more
doaj   +1 more source

Study on Fracture Propagation Laws and Fracability Evaluation of Gulong Shale Multi-Fluid Fracturing Based on CT Quantitative Characterization

Fractal and Fractional
The Gulong shale oil reservoir is characterized by high clay content and strong heterogeneity, with substantial variations in mineral composition among different intervals.
Yu Suo, Nan Yang, Zhejun Pan, Zhaohui Lu, Bing Hou, Haiqing Jiang   +5 more
doaj   +1 more source

Geochemical Characteristics of Mature to High-Maturity Shale Resources, Occurrence State of Shale Oil, and Sweet Spot Evaluation in the Qingshankou Formation, Gulong Sag, Songliao Basin

Energies
The exploration of continental shale oil in China has made a breakthrough in many basins, but the pure shale type has only been found in the Qingshankou Formation, Gulong Sag, Songliao Basin, and the evaluation of shale oil occurrence and sweet spot ...
Bo Gao, Zihui Feng, Jinglan Luo, Hongmei Shao, Yubin Bai, Jiping Wang, Yuxuan Zhang, Yongchao Wang, Min Yan   +8 more
doaj   +1 more source

Experimental study on initiation and propagation of hydraulic fractures in stratified shale oil reservoirs

Journal of Petroleum Exploration and Production Technology
The bedding planes of the Gulong shale oil reservoir in Daqing, China are extremely developed, which causes the hydraulic fractures to extend excessively in the horizontal direction while their longitudinal propagation is limited. In order to improve the
Hao Qin, Wuhao Guo, Haibo Zhao, Yintong Guo, Chuangang Xiang, Jianliang Zhang, Shujun Yin, Weilin Yan, Chuang Li, Yongguang Liang, Huabing Zhang, Xinao Zhang   +11 more
doaj   +1 more source

Quantitative characterization of fault damage zones in shale reservoirs: asymmetric structures and their implications for fluid flow, a case study from the Gulong Sag, Songliao basin

Frontiers in Earth Science
Fault damage zones serve as critical conduits for fluid migration in shale reservoirs characterized by low matrix permeability. Addressing the challenges in quantitatively characterizing fault damage zones in shale, this study takes the Gulong shale in ...
Yongqiang Qu, Xiaocen Su, Guoliang Yan, Lei Gong, Lei Gong, Tingjing Zhang, Chao Feng, Dongsheng Cao   +7 more
doaj   +1 more source

Multi-Field Coupled Fracture Propagation Mechanisms of Supercritical CO2 Fracturing in Gulong Shale and Tight Sandstone

Applied Sciences
Strong heterogeneity in unconventional reservoirs leads to complex fracture propagation and challenges in quantitative stimulation evaluation. This study integrates true triaxial fracturing experiments, three-dimensional CT reconstruction, multi-field ...
Nan Yang, Jing Liu, Ming Xu, Jin-Jiang Zhu, Yu Suo   +4 more
semanticscholar   +1 more source

Modeling shale electrical conductivity based on the dual conduction of connected pores and surface electric double layers

Frontiers in Earth Science
Electrical resistivity is a fundamental parameter for evaluating fluid saturation and reservoir properties in shale formations. However, existing conductivity models often exhibit limited accuracy due to the highly complex, coupled conductive mechanisms ...
Jianbin Zhao, Zhehao Zhang, Changsheng Wang, Weibiao Xie, Xu Chen, Zuzhi Hu   +5 more
doaj   +1 more source