An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures by Xinli Zhao, Zhengming Yang, Zhiyuan Wang, Wei Lin, Shengchun Xiong, Yutian Luo, Zhongkun Niu, Debin Xia

“…Aiming at the stress sensitivity problem of tight reservoirs with different microfractures, the cores of H oilfield and J oilfield with different microfractures were obtained through the fractures experiment, so as to study the change of gas permeability in tight sandstone core plug during the change of confining pressure. …”
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Investigation of Mechanical Numerical Simulation and Expansion Experiment of Expandable Liner Hanger in Oil and Gas Completion by Yong Chen, Guo Ping Xiao, Wen Jian Zhong, Hao Yi

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Design and Experimental Research on Sealing Structure for a Retrievable Packer by Yang Liu, Zhanghua Lian, Junwen Chen, Shengping Kuang, Yisheng Mou, Yuhai Wang

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Practical Streamline Method for Quantitatively Characterizing Waterflooding in Narrow Channel Reservoirs by Pin Jia, Yang Li, Bangdan Liu, Haoran Feng

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Experimental study on the influencing factors and pore production law of CO2 huff-and-puff in tight sandstone reservoirs by Zhe Zhang, Jian Sun, Zhihao Niu, Zhilin Tuo, Xinyu Zhong, Xiaolei Zheng, Rongjun Zhang

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Evaluation Method of the Vertical Well Hydraulic Fracturing Effect Based on Production Data by Debin Xia, Zhengming Yang, Daolun Li, Yapu Zhang, Ying He, Yutian Luo, Anshun Zhang, Wenming Wang, Xinli Zhao

“…This study conducts postfracturing effect evaluations to block C Oilfield’s wells that underwent conventional fracturing and volumetric fracturing, respectively, proposes the definition of fracture network conductivity and its relationship with cumulative production, and analyzes the fracturing construction parameters. …”
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Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Bas... by Binfeng Cao, Xiaorong Luo, Likuan Zhang, Fenggui Sui, Huixi Lin, Yuhong Lei

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Research on attenuation rate correlation calibration method based on acoustic variable density logging by Dongming Liu, Ronghui Yan, Chao Zhou, Lisha Zhang, Pan Zhao, Bing Li, Jun Qin

“…The acoustic variable density field test of 18 wells in the oilfield shows that the relative acoustic amplitude calculation results obtained by the attenuation rate correlation calibration method are basically consistent with the theoretical values, and the maximum deviation is 6.9%. …”
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The Identification and Reservoir Architecture Characterization of Wandering Braided River in Nanpu 1-29 Area, Bohai Bay Basin by Xueqian Pang, Cheng Xue, Yangping Liu, Li Yin, Yufeng Gao, Yanshu Yin

“…Nanpu 1-29 Area of Jidong Oilfield in China is currently in the stage of high water cut and low recovery degree. …”
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Analyzing the Origin of Low Resistivity in Gas-Bearing Tight Sandstone Reservoir by Yanjiao Jiang, Jian Zhou, Xiaofei Fu, Likai Cui, Chao Fang, Jiangman Cui

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Multiple Influences of Paleogeography, Sequence Stratigraphy, and Fold Structure on Coalbed Methane Accumulation in the Lopingian (Late Permian) of Junlian Coalfield, SW China by Xiangdong Gao, Wuzhong Li, Yiming Yang, Kaigui Yin, Shihao Zhou

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Pore Structure Characteristics, Genesis, and Its Controlling Effect on Gas Migration of Quaternary Mudstone Reservoir in Qaidam Basin by Shijie He, Xianglu Tang, Zeyu Shao, Zhenxue Jiang, Bo Wang, Xiaoxue Liu, Yuchao Wang, Mingli Xu

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Balanced displacement methods and effect evaluation of heterogeneous combination flooding in different reservoirs by Dejun WU, Jian HOU, Lijie LIU, Kang ZHOU, Zhibin AN

“…The synergistic oil production using heterogeneous combination flooding and field adjustment measures achieved good results in increasing oil production and decreasing water cut in the Ng3 block of the Gudao Oilfield. However, because of the complex heterogeneity of the actual formation, differences in the deployment of interlayer well networks, and different injection volumes of chemical agents in different layers, the extraction of planar and vertical remaining oil by heterogeneous combination flooding is affected. …”
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Feldspar Dissolution and Its Influence on Reservoirs: A Case Study of the Lower Triassic Baikouquan Formation in the Northwest Margin of the Junggar Basin, China by Meng Xiao, Xuanjun Yuan, Dawei Cheng, Songtao Wu, Zhenglin Cao, Yong Tang, Zongrui Xie

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Well Pattern and Well Spacing Optimization of Large Volume Water Injection in a Low-Permeability Reservoir with Pressure Sensitivity by Jie Zhan, Yafei Tian, Chao Fan, Xianlin Ma, Ren-Shi Nie, Dongqi Ji, Teng Li, Hongyan Yu

“…Even with the fractured wells, the primary oil recovery of low-permeability reservoirs is still poor in Block X of Shengli Oilfield. To further enhance the oil recovery, water is injected into the reservoir. …”
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A New Method of Central Axis Extracting for Pore Network Modeling in Rock Engineering by Xiao Guo, Kairui Yang, Haowei Jia, Zhengwu Tao, Mo Xu, Baozhu Dong, Lei Liu

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Effective Stress Factor Analysis of Proppant for Multi-stage Fracturing in Horizontal Wells by Bo Cai, Rui Gao, Chunming He, Jin Chen, Ning Cheng, Tiancheng Liang, Guifu Duan, Chuanyou Meng, Haifeng Fu, Haoyu Zhang

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Quantitative Characterization of Full-Spectrum Pore Size and Connectivity for Shale with Different Sedimentary Facies from the Dongying Depression, Bohai Bay Basin, East China by Yushan Du, Na Yin, Qinhong Hu, Mianmo Meng, Xiuchuan Zhu, Jing Chao, Cunfei Ma

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Multi-scale characterization of tight carbonate rocks based on digital cores by Changsheng Wang, Changsheng Wang, Lili Tian, Lili Tian, Chuanrui Sun, Chuanrui Sun, Yuwei Deng, Yuwei Deng, Ying Zhou, Ying Zhou, Xin Nie, Xin Nie

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Dissolved ozone flotation-nucleation crystallization pelleting process for the treatment and reclamation of oil and gas field produced water by SONG Ji’na, YUE Wen, TONG Xiao, XU Lanzhou, WANG Yadong, SHANG Yabo, JIN Xin, JIN Pengkang

“…Taking the produced water from four stations in Changqing Oilfield as the actual treatment object, the guanidine fracturing fluid, prepared from the produced water treated by dissolved ozone flotation-nucleation crystallization pelleting process, showed good viscosity of the base fluid, which could be lifted and not easily broken. …”
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