Dalong Hu

ORCID: 0000-0002-2736-0909
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About
Contact & Profiles
Research Areas
  • Drilling and Well Engineering
  • Oil and Gas Production Techniques
  • Machine Fault Diagnosis Techniques
  • Corrosion Behavior and Inhibition
  • Minerals Flotation and Separation Techniques
  • Non-Destructive Testing Techniques
  • Concrete Corrosion and Durability
  • Advanced Data Processing Techniques
  • Engineering Diagnostics and Reliability
  • Hydraulic Fracturing and Reservoir Analysis
  • Seismic Imaging and Inversion Techniques

Southwest Petroleum University
2023-2024

Abstract The drilling pump is the core circulation equipment used in oil and gas drilling. Timely diagnosis troubleshooting of suction discharge valves are essential for preventing fault escalation ensuring smooth operation pump. However, real working conditions, these fluid end can experience various types faults, often obscured by significant noise interference, current diagnostic methods lack effectiveness. This study focuses on a five-cylinder pump, investigating states under actual...

10.1088/1361-6501/adbb0f article EN Measurement Science and Technology 2025-02-27

An important method that coal-fired power plants use to realise low-cost zero discharge of desulfurisation wastewater (FGD wastewater) is utilise wet slag removal systems. However, the high Cl− content FGD in systems causes environmental damage. In this study, corrosion behaviour inner guide wheel material, 20CrMnTi, was studied using dynamic weight loss and electrochemical methods. X-ray diffraction, scanning electron microscopy, energy spectroscopy were used analyse organisational phase...

10.3390/ma17020457 article EN Materials 2024-01-18

Abstract Drilling pump is the ‘heart’ of drilling construction. The key to accurate fault diagnosis extract useful features from noisy raw signals. In order improve accuracy fluid end, this paper proposes a method based on multi-scale convolutional neural network (MSCNN) combined with snake optimization optimized maximum correlation kurtosis deconvolution (SO-IMCKD). First, SO algorithm employed optimize filter length and shift number IMCKD process signal, enhancing signal. Second,...

10.1088/1361-6501/ace8ae article EN Measurement Science and Technology 2023-07-19

Fault diagnosis of the fluid end faces two challenges. One is that vibration signal used for contains a lot noise, and other cannot fully reflect fault state. In this paper, model based on enhanced vibration-strain signals proposed to improve accuracy drilling pump end. First, sparrow search algorithm (SSA) employed optimize maximum correlated kurtosis deconvolution (MCKD) enhance impact component signal. Second, are accurately describe working state Third, one-dimensional convolutional...

10.1177/10775463231207120 article EN Journal of Vibration and Control 2023-10-17

An effective strategy for achieving cost-effective and environmentally friendly desulfurization wastewater in coal-fired power plants involves the incorporation of into slag water system. The objective this study was to analyze corrosion behavior Q235-A slag-picker shell material upon introduction FGD dynamic weight loss method, electrochemical testing method microscopic phase characterization were employed investigate impact varying chloride ion concentrations (ranging from 1000 mg/L 30,000...

10.3390/ma16155270 article EN Materials 2023-07-27
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