Results 1 to 10 of about 509 (156)

Study on Structural Evolution of Synthetic Graphite Derived from Lignite Prepared by High Temperature–High Pressure Method

Crystals, 2022
Abundant and cheap lignite is regarded as inferior fuel due to its disadvantages such as low heat and high moisture. In order to realize the high value and clean, non-fuel utilization of lignite, we used lignite as precursor to prepare high-quality ...
Yi-Ming Wang, Chun-Hua Zhang
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Molecular Simulation of Adsorption in Deep Marine Shale Gas Reservoirs

Energies, 2022
Deep marine shale gas reservoirs are extremely rich in the Sichuan basin in China. However, due to the in situ conditions with high temperature and high pressure (HTHP), in particular reservoir pressure being usually much higher than the test pressure ...
Cheng Chang, Jian Zhang, Haoran Hu, Deliang Zhang, Yulong Zhao   +4 more
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Evaluation of the Influence of Flavor Characteristics of Cooked Bacon with Different Sterilization Methods by GC-IMS Combined with HS-SPME-GC-MS and Electronic Nose

Foods, 2022
This study investigated the impact of high pressure and temperature (HTHP) and electron-beam irradiations (3, 5, 7, and 9 kGy) using differences in two sterilization methods on the volatile compounds and sensory characteristics of cooked bacon. It showed
Ruixiao Wu, Chunjie Yang, Linjie Xi, Tian Wang, Ju Zhang, Liping Kou, Wu Ding   +6 more
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Characteristics of Porosity and Permeability of Ultra-High Temperature Perforated Damage Zone in Sandstone Targets

Frontiers in Earth Science, 2022
Perforating as a widely-applied stimulation technology is becoming incrementally important in unconventional oil/gas development. It can effectively improve deep-lying high-temperature, high-pressure (HTHP), low-porosity, low-permeability reservoirs ...
Changgui Xu, Hao Liang, Shusheng Guo
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Sealing failure mechanism and control method for cement sheath in HPHT gas wells

Energy Reports, 2023
The sustained casing pressure (SCP) caused by the sealing failure of cement sheaths has become one of the main threats to the safe and efficient production of high-temperature and high-pressure (HTHP) gas wells.
Wei Lian, Jun Li, Derong Xu, Zongyu Lu, Kai Ren, Xuegang Wang, Sen Chen   +6 more
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Failure and mitigation study of packer in the deepwater HTHP gas well considering the temperature-pressure effect during well completion test

Case Studies in Thermal Engineering, 2021
During the well completion test of deepwater high temperature and high pressure (HTHP) gas well, the force on the packer changes dramatically, leading to the packer failure and serious consequences.
Cheng Li, Zhichuan Guan, Bo Zhang, Qing Wang, Hongqiao Xie, Yan Yan, Chao Han   +6 more
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Development and Laboratory Test of Normally Open High-TemperatureVent Valve for Offshore Thermal Recovery

Shiyou jixie, 2022
The vent valve for offshore thermal recovery cannot be opened or closed normally under high temperature and high pressure(HTHP)conditions due to the damage of hydraulic control pipeline.To solve this problem,a normally open high-temperature vent valve ...
Sun Yongtao, Hu Houmeng, Bai Jianhua, Sun Yubao, Ma Zenghua, Gu Qilin   +5 more
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Experimental Study on Radial Cementation Strength of the First Cementing Interface in HTHP Wells

Shiyou jixie, 2021
In view of the stress status of cement ring in high-temperature and high-temperature(HTHP)wells, a set of full-size HTHP cement ring sealing integrity evaluation test equipment was developed. The influence of confining pressure and casing pressure on the
Huang Peng, Li Yang, Li Dong, Fan Huabing, Liu Dong   +4 more
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Development and Experimental Validation of Active In Situ Temperature-Preserved Coring Testing System for Deep Oil and Gas Reservoirs

Applied Sciences
Deep oil and gas reservoirs exist under high-temperature and high-pressure (HTHP) conditions. Conventional coring without thermal preservation during retrieval induces thermal imbalance, biasing petrophysical and phase measurements and distorting ...
Haishu Bai, Zhiqiang He, Zijie Wei, Yufan Lan   +3 more
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Effect of Ti3AlC2 content on microstructure and properties of PcBN materials

Jin'gangshi yu moliao moju gongcheng
The monolithic PcBN composite tool materials were prepared at 5.5 GPa and 1450 ℃ with different contents of Ti3AlC2 as the binder phase. The effects of different mass fractions of Ti3AlC2 on the phase composition, microstructure, and mechanical ...
Jinming MA, Changjiang XIAO, Hongjun TAO, Qunfei ZHANG, Lihui TANG, Jianfeng CAO, Yuan LI, Shijie ZHOU, Yulin TANG, Yachao CHEN, Zhengxin LI   +10 more
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