Explanipedia

Analysis of Failure Cause in Steel Wire-Reinforced Thermoplastic Composite Pipes for Sour Gas Field Water Transportation Open

Zhiming Yu, Shaomu Wen, Jie Wang, Jianwei Lin, Chuan Xie , et al. · 2025

Steel-reinforced thermoplastic pipe is widely used for water transportation in sour gas fields. However, under the combined effects of corrosive media, internal high pressure, and long-term environmental aging, premature failures such as l…

Simulation Study on Erosion of Gas–Solid Two-Phase Flow in the Wellbore near Downhole Chokes in Tight Gas Wells Open

Cheng Du, Rongqin Ke, Xiangwei Bai, Rong Zheng, Yao Huang , et al. · 2025

In order to study the problem of obvious wall thinning in the wellbore caused by proppant backflow and sand production under throttling conditions in tight gas wells. Based on the gas-phase control equation, particle motion equation, and e…

Entity guided triplet extraction method with additive attention enhancement Open

Yingzi Wu, Ling Lü, Dezhi Zeng · 2025

Machine Learning-Based Prediction of Tribological Properties of Epoxy Composite Coating Open

Han Yan, Tan Junling, Hui Chen, Tao He, Dezhi Zeng , et al. · 2025

Machine learning, being convenient and nondestructive, is beneficial for evaluating the tribological properties of coatings. Here, six machine learning algorithms, using a sericite/epoxy composite coating (SEC) as an example, were employed…

Corrosion patterns and optimal materials of tubings in sulfur purification buried wells in the Sichuan Basin Open

Yaxin Li, Shaomu Wen, Dezhi Zeng, Sirui Cao, Yongda Cao , et al. · 2025

Experimental Investigation on the Corrosion and Crack Resistance of Incoloy 825 Under Long-Term Exposure to Elemental Sulfur, H2s, and Co2 Open

Dezhi Zeng, Chengxiu Yu, Jiancheng Luo, Tianlei Li, Ke Li , et al. · 2025

Sandwich-type ball-plate laminated triboelectric nanogenerator for wave energy harvesting Open

Qianxi Zhang, Dongdong Hou, Yan Jin, Peng Zhang, Mingjie Zhang , et al. · 2025

Material Selection for Tubing Under High-Temperature, High-Pressure and Highly Sour Environments: An Entropy Weight Topsis Method Based on Coefficient of Variation Open

Dezhi Zeng, Jing Yan, Jiancheng Luo, Chunping Yu, Xi Wang , et al. · 2025

Study on electrochemical corrosion of P110 tubing during air injection oil flooding Open

Lijuan Pan, Xue Han, Junwei Fang, Huiqiu Yuan, Zhongfu Cheng , et al. · 2024

Simulation Analysis of the Annular Liquid Disturbance Induced by Gas Leakage from String Seals During Annular Pressure Relief Open

Qiang Du, Rongqin Ke, Xiangwei Bai, Cheng Du, Zhaoqian Luo , et al. · 2024

Due to the failure of string seals, gas can leak and result in the abnormal annulus pressure in gas wells, so it is necessary to relieve the pressure in gas wells. In the process of pressure relief, the leaked gas enters the annulus, cause…

Tribological Properties of a Smart Ti3c2tx-Based Epoxy Coating: Providing an Idea to Solve the Weak Tribological Properties of Traditional Smart Coatings Open

Han Yan, Leifeng Shi, Dezhi Zeng, L.C. Zhang · 2024

Material Selection of Titanium Alloy Pipelines Considering Multi-Criteria in an Acidic Environment Based on Analytic Hierarchy Process Open

Dezhi Zeng, Jiancheng Luo, Chunping Yu, Guangguang Xiang, Ting Mao , et al. · 2024

Analysis and Optimization Design of Internal Pressure Resistance of Flexible Composite Pipe Open

Dezhi Zeng, Xi Wang, Kunji Ming, Chengxiu Yu, Y. X. Zhang , et al. · 2024

Evolution Features and a Prediction Model of Casing Perforation Erosion During Multi-Staged Horizontal Well Fracturing Open

Dezhi Zeng, Xi Wang, Jiancheng Luo, Chunyan Zheng, Xin Zhang , et al. · 2024

Research on Novel High-Temperature Oilfield Water-Based Annulus Protection Fluid Open

Kai Xie, Tao Ye, Chen Wei, Lianwu Zhou, Wen‐Quan Wang , et al. · 2024

Multifunctional Ti3c2tx-Based Epoxy Composite Coating Towards Intelligent Response and Corrosion/Wear Resistance Open

Han Yan, Dezhi Zeng, Leifeng Shi, Lin Zhang · 2024

RSFnet: A Relation Semantic Fusion-Based Entity Relation Extraction Method Open

Ruiran Ding, Ling Lü, Qiuyang Yan, Yuyan Wu, Dezhi Zeng · 2023

In existing methods for entity-relation extraction, both entity-driven and relation-driven approaches commonly suffer from insufficient interaction between entities and relationships. Specifically, there is a lack of utilization of the sem…

Analysis of the Current Situation, Opportunities, Challenges and Countermeasures of China's Digital Payment System in the Post-epidemic Era Open

Jingze Li, Junze Ma, Chongkai Tang, Dezhi Zeng · 2023

In recent years, under the influence of the COVID-19 pandemic, China's digital payment system has encountered significant opportunities, challenges, and changes. The digital payment system mainly includes three parts: electronic currency, …

Erosion characteristics and simulation charts of sand fracturing casing perforation Open

Shanzhi Shi, Sisong Zhang, Cheng Ning, Gang Tian, Dezhi Zeng , et al. · 2023

Large-scale sand fracturing is a necessary means in the efficient exploitation of shale gas/oil. However, in the process of fracturing operation, the sand carrying fluid and proppant easily causes scouring and wear to production strings, e…

PTC-MAS: A Deep Learning-Based Preoperative Automatic Assessment of Lymph Node Metastasis in Primary Thyroid Cancer Open

Ruqian Fu, Hao Yang, Dezhi Zeng, Shuhan Yang, Peng Luo , et al. · 2023

Background: Identifying cervical lymph node metastasis (LNM) in primary thyroid cancer preoperatively using ultrasound is challenging. Therefore, a non-invasive method is needed to assess LNM accurately. Purpose: To address this need, we d…

Hydrogen permeation and hydrogen damage behavior of high strength casing steel in acidic environment Open

Qiang Du, Zhendong Liu, Jian Yang, Zhaoqian Luo, Huanhuan Wang , et al. · 2023

To explore the effect of hydrogen permeation on pipes in an acidic environment, the tensile mechanical properties of three types of high strength steels were evaluated before and after hydrogen filling. The hydrogen damage behavior of thre…

Interpretable machine learning for maximum corrosion depth and influence factor analysis Open

Yuhui Song, Qinying Wang, Xingshou Zhang, Lijin Dong, Shu‐Lin Bai , et al. · 2023

We have employed interpretable methods to uncover the black-box model of the machine learning (ML) for predicting the maximum pitting depth ( dmax ) of oil and gas pipelines. Ensemble learning (EL) is found to have higher accuracy compared…

Design of Multifunctional and Efficient Water-Based Annulus Protection Fluid for HTHP Sour Gas Wells Open

Qilin Liu, Xue Han, Jian Cao, Lang Du, Ning Jia , et al. · 2023

In order to solve the corrosion problem of production string in the process of acidizing for the purpose of production, a new water-based annular protective fluid suitable for HTHP acid gas, including H2S-CO2 wells, was developed. Firstly,…

Clarifying the Effect of O2 and H2s Concentrations on the Corrosion of N80 and 3cr Steel in Co2/H2s/O2 System Open

Xue Han, Dezhi Zeng, Jie Li, chengxiu yu, Zhendong Liu , et al. · 2023

A Study on the Influential Factors of Stress Corrosion Cracking in C110 Casing Pipe Open

Zhe Wang, Pingquan Wang, Dezhi Zeng, Taihe Shi, Wenliang Deng · 2022

In this paper, we analyze the potential factors affecting the hydrogen sulfide type of stress corrosion cracking in C110 casing pipes. In order to further study these cracking factors, the methods of material property testing, scanning ele…

Corrosion damage behaviors of rubber O-rings under simulated acid fracturing conditions Open

Dezhi Zeng, Zhong Yang, Cao Da-yong, Peng Zhao, Tuanhui Fu , et al. · 2021

To explore the damage behavior of O-ring in acid environment, a high-temperature and high-pressure (HTHP) autoclave was used to simulate the service environment of O-ring, and then 168h corrosion test of hydrogenated nitrile butadiene rubb…

Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment: Experiment and Modeling Open

Longjun Chen, Junying Hu, Xiankang Zhong, Qiang Zhang, Yan Zheng , et al. · 2018

The ingress of oxygen into pressure vessels used in oil & gas production and transportation could easily result in serious corrosion. In this work, the corrosion behaviors of Q345R steel at the initial stage in 1 wt.% NaCl solution were in…

Effect of Temperature on Corrosion Behavior of VM110SS Casing Steel in the CO2/H2S Coexistent Environment Open

Naiyan Zhang, Dezhi Zeng, Zhiming Yu, Wentao Zhao, Junying Hu , et al. · 2018

Numerical simulation for erosion effects of three-phase flow containing sulfur particles on elbows in high sour gas fields Open

Enbo Zhang, Dezhi Zeng, Hongjun Zhu, Shuanggui Li, Dongbo Chen , et al. · 2017

The Corrosion Behavior of 17-4 Stainless Steel in a Stainless Steel-Carbon Steel Galvanic Couple Open

Longjun Chen, Junying Hu, Xiankang Zhong, Siyu Yu, Zhi Zhang , et al. · 2017

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