Results 61 to 70 of about 509 (156)

Transient Heat Transfer Model for Deep HTHP Wellbore Under Multiple Heat Sources

Shiyou jixie
In order to accurately analyze the effects of various heat source factors such as high-temperature and high-pressure(HTHP)physical property parameters of drilling fluid,drill string eccentricity,rotation,and rock breaking of bit on the annular ...
Chen Xin, He Miao, Xu Mingbiao, Zhou Changcheng, Lin Deju   +4 more
doaj  

Study of the Buckling Behavior of Completion Strings for Ultra-Deep Gas Wells

Shiyou jixie, 2020
Due to high wellbore temperature and pressure, ultra-deep high temperature and high pressure (HTHP) gas wells have a high downhole string buckling risk that are very likely to cause string failure and worsened washout etc. problems.
Liu Xiangkang, Ding Liangliang, Li Yufei, Lu Linfeng, Zhang Lin, Luo Wei, Tian Lu   +6 more
doaj  

CO₂ Corrosion of Downhole Sand Control Screen: Experiments, Model, and Application

Energies
Under simulated conditions typical of a high-temperature, high-pressure (HTHP) oil and gas reservoir in the South China Sea, dynamic corrosion evaluation experiments were performed on a three-layer screen structure and three types of sand retaining media.
Bo Zhou, Changyin Dong, Xiaobo Li, Haobin Bai, Bin Yin, Huaiwen Li, Kaixiang Shen   +6 more
doaj   +1 more source

Studies of the hardness for the sintered tantalum boride (TaB) at high temperature and high pressure

四川大学学报. 自然科学版, 2017
Tantalum boride has been sintered under high temperature and high pressure (HTHP) conditions by using a DS6×8 MN cubic press device, and the Vickers hardness of TaB has been measured by using a diamond indentation method. Under the applied load of 29.4 N,
CHEN Hai-Hua, LIANG Hao, XIE Ming-Cai, LIU Ling-Xiao, ZHENG Shu-Dong   +4 more
doaj  

Identification of Key Parameters and Construction of Empirical Formulas for Isentropic and Volumetric Efficiency of High-Temperature Heat Pumps Based on XGBoost-MLR Algorithm

Energies
High-temperature heat pumps (HTHPs) have gradually begun to play an essential role in using heat in industry for waste heat recovery and providing higher-grade heat.
Shuaiqi Li, Fengming Wu, Wenye Lin, Wenji Song, Ziping Feng   +4 more
doaj   +1 more source

Structure and mechanical properties of high-entropy carbide (Ti0.2Zr0.2Nb0.2Ta0.2Cr0.2)C: Effect of sintering method

AIP Advances
High-entropy carbide ceramics (HECCs) have attracted increasing attention for extreme-environmental applications due to their unique multi-elemental compositions and outstanding mechanical properties.
Wenjie Guo, Jin You, Yangyang Li, Yilong Pan, Tian Cui   +4 more
doaj   +1 more source

A Novel Thermo-Thickening Oil-Based Drilling Fluid Based on Composite Thickener Under High Temperature and Pressure

Energies
Under high-temperature conditions in deep well formations, oil-based drilling fluids tend to show degraded rheological properties and reduced suspension capacity, which may impair wellbore cleanliness and circulation pump pressure and hinder drilling. To
Weijie Chen, Xiaoming Tang, Leilei Wang, Hong Ma, Anliang Chen, Jian Zhang, Weian Huang, Guanzheng Zhuang, Hanyi Zhong, Xianbin Zhang   +9 more
doaj   +1 more source

Optimization of Slip for High-Temperature High-Pressure（HTHP） Retriev-able Packer Based on Comprehensive Frequency Analysis Method

Shiyou jixie
With the deepening of exploration and development in the Tarim Basin， Junggar Basin and Sichuan Basin， deep and ultra-deep high-temperature high-pressure （HTHP） reservoirs have put forward more strict requirements on the anchoring and unseating ...
Xiang Shaohua
doaj   +1 more source

Load Variation of Packer Under High-Temperature and High-Pressure Multi-Field Coupling

Shiyou jixie
Packer, as a key downhole tool, plays an important role in ensuring the production safety and efficiency of wells. However, in complex operating environments with high temperature and high pressure, the packers are prone to failure due to excessive axial
Yang Boyuan, Liu Huailiang, Zhang Hui, Liu Yu, Li Jun, Xi Yan   +5 more
doaj  

Phase Transition and Mechanical Property Modulation of Silicon Nitride at High Temperature and High Pressure

Gaoya wuli xuebao
Silicon nitride (Si3N4) ceramics are a novel category of structural ceramics, exhibiting both high reliability and economy value due to their unique physical and chemical properties.
Siwen CUI, Shixin LI, Shuailing MA, Min LIAN, Xingbin ZHAO, Qiang TAO, Pinwen ZHU   +6 more
doaj   +1 more source