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Oilfield sustainability and management:An optimization model for the reconstruction of oil and gas gathering systems based on potential location mining

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petroleum Science 2025年第2期22卷 935-955页

作者： Jie Chen Wei Wang Wen-Yuan Sun Dong Li Yu-Bo Jiao National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering China University of Petroleum (Beijing)

The carbon emissions and cost during the construction phase are significant contributors to the oilfield *** oilfields enter the late stage,the adaptability of facilities *** achieve sustainable development,oilfield reconstruction was usually conducted in discrete rather than continuous *** by economic and sustainability goals,a 3-phase heuristic model for oilfield reconstruction was developed to mine potential locations in continuous *** phase 1,considering the process characteristics of the oil and gas gathering system,potential locations were mined in continuous *** phase 2,incorporating comprehensive reconstruction measures,a reconstruction model was established in discrete *** phase 3,the topology was further adjusted in continuous ***,the model was transformed into a single-objective mixed integer linear programming model using the augmented ε-constraint *** experiments revealed that the small number of potential locations could effectively reduce the reconstruction cost,and the quality of potential locations mined in phase 1 surpassed those generated in random or grid *** studies showed that cost and carbon emissions for a new block were reduced by up to 10.45% and 7.21 %,*** reductions were because the potential locations mined in 1P reduced the number of metering stations,and 3P adjusted the locations of metering stations in continuous space to shorten the pipeline *** an old oilfield,the load and connection ratios of the old metering station increased to 89.7% and 94.9%,respectively,enhancing operation ***,recycling facilitated the diversification of reconstruction measures and yielded a profit of 582,573 ￥,constituting 5.56% of the total *** study adopted comprehensive reconstruction measures and tapped into potential reductions in cost and carbon emissions for oilfield reconstruction,offering valuable insights for future oilfield de

关键词： Oilfield reconstruction Sustainable development Optimization model Potential location 3-phase heuristic model

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Resilience Evaluation Method for Compressor Stations Based on Markov Processes

Resilience Evaluation Method for Compressor Stations Based o...

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2024 International Conference Optoelectronic Information and Optical engineering, OIOE 2024

作者： He, Qian Peng, Shiliang Gao, Guoyin Yang, Zhaoming He, Yuxuan Su, Huai Zhang, Jingjun National Engineering Laboratory for Pipeline Safety MOE Key Laboratory of Petroleum Engineering Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum-Beijing Beijing102249 China PIPECHINA Oil & Gas Control Center Dongtucheng Road Chaoyang District Beijing100013 China

ISBN: (数字)9781510688209

ISBN: (纸本)9781510688193

Gas transmission pipeline compressor stations serve as a crucial component within the entirety of the natural gas transport system, with their stability being directly tied to the security and consistency of natural gas supply. In the event of external disturbances and internal faults, these compressor stations must exhibit a high level of resilience, defined by their ability to resist shocks and recover swiftly from such incidents. To this end, the present study has established an evaluation framework based on continuous-time Markov processes, which aims to quantitatively analyze and assess the resilience of compressor station facilities. Within this framework, the study initially employs continuous-time Markov processes to model the state transitions of compressor station facilities, thereby capturing the behavior of stations and the probabilities of state transitions under various operational conditions and external perturbations. Stemming from this, the paper further delineates three core evaluative indices, which, when collectively assessed, facilitate a comprehensive quantification of the resilience level of a compressor station. These indices provide a scientific foundation for the design optimization, operational management, and emergency response planning of compressor stations. This research offers a fresh perspective and tools for the achievement of stable and sustainable operation within pipeline gas transmission systems. © 2025 SPIE.

关键词： Continuous time systems

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2D/3D heterojunction carrier dynamics and interface evolution for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第3期102卷 808-819页

作者： Yi Chen Zhu Ma Zhuowei Du Wei You Junbo Yang Qiang Yang Qian Zhang Hao Du Yixian Li Fuchun Gou Shanyue Hou Shenshen Zheng Fengying Zhang Cheng Huang Yuelong Huang Yan Xiang Liming Ding Kuan Sun Mojtaba Abdi-Jalebi School of New Energy and Materials Southwest Petroleum University(SWPU)Chengdu 610500SichuanChina Center for Excellence in Nanoscience Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China Key Laboratory of Low-grade Energy Utilization Technologies and Systems(MoE) School of Energy and Power EngineeringChongqing UniversityChongqing 400044China Institute for Materials Discovery University College London Malet Place London WC1E 7JEUK

The 2D/3D heterojunction perovskites have garnered increasing attention due to their exceptional moisture and thermal ***,few works have paid attention to the influence of the subsequent change process of 2D/3D heterojunction PSC on the stability of ***,the evolution of the interface and carrier dynamic behavior of the 2D/3D perovskite films with long-term operation has not been systematically developed befo *** this work,the effects of 2D/3 D heterojunction evolution on the interface of perovskite films and different carrier dynamics during 2D/3D evolution are systematically analyzed for the first *** decomposition of 2D/3D heterojunction in the perovskite film will have a certain impact on the surface and carrier dynamics behavior of *** the evolution of 2D/3D heterojunction,PbI_(2)crystals will appear,which will improve the interfacial energy level matching between the electron transport layer and perovskite *** a long evolution time,some holes will appear on the surface of perovskite *** open circuit voltage(V_(OC))of PSCs increased from 1.14 to1.18 V and the PCE increased to 23.21%after 300 h storage in the nitrogen atmosphere,and maintained 89%initial performance for with 3000 h stability test in N_(2)*** discovery has a significant role in promoting the development of inverted heterojunction PSCs and constructing the revolution mechanism of charge carrier dynamic.

关键词： 2D/3D heterojunction Interface Carrier dynamics Evolution Inverted PSCs

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An adaptive k-means clustering algorithm based on grid and domain centroid weights for digital twins in the context of digital transformation

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Journal of Big Data 2025年第1期12卷 1-33页

作者： Cai, Wei Yang, Fei Yao, Bo Li, Chuanxian Sun, Guangyu College of Pipeline and Civil Engineering China University of Petroleum (East China) Qingdao People’s Republic of China Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety Qingdao People’s Republic of China

Digital twins are pivotal in driving the digital transformation across various industries. Once digital twins are established for operational physical entities (i.e., digital twins for digital transformation, DT-DT), managing both the vast volumes of historical operational data and the continuous influx of new data becomes essential. This characteristic presents challenges in digital twin data mining, including high computational costs, performance limitations, and inefficiencies. Additionally, traditional algorithms struggle to efficiently handle both large historical datasets and newly generated streaming data simultaneously. The widely used k-means clustering algorithm requires pre-specifying the number of clusters and randomly selecting initial centroids. As the number of data points increases, the algorithm’s execution time and subsequent evaluation process tend to become significantly prolonged. To address these challenges, this paper proposes an adaptive k-means clustering algorithm based on grid and domain centroid weights (GDCW-AKM). The performance of the algorithm is evaluated using both real and synthetic datasets, considering runtime and multiple clustering evaluation metrics. Experimental results demonstrate that the GDCW-AKM algorithm is well-suited for DT-DT. It can efficiently process large-scale datasets and support streaming data, updating memory allocation information and saving data to disk with a single data scan. The algorithm automatically determines the optimal number of clusters k and initial centroids. For newly arriving data, it employs an incremental update mechanism, adjusting only the affected portions, which significantly reduces memory usage. While maintaining clustering accuracy comparable to k-means, the GDCW-AKM algorithm greatly improves overall efficiency, with the performance gain becoming more pronounced as data volume increases. Furthermore, the algorithm simplifies parameter selection, requiring only the recommended settings

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Study of Oilfield Development Cost Market Index Modeling Based on Big Data

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Journal of Energy Resources Technology, Part B: Subsurface Energy and Carbon Capture 2025年第2期1卷 021008页

作者： Shi, Mingyu Zhang, Fengyuan Lu, Ruihan Cao, Wenxing Liu, Xia Liu, Weidian Liu, Dianyu China National Petroleum Corporation (CNPC) R&D Department Beijing¾100007 China State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) Beijing¾102249 China College of Petroleum Engineering China University of Petroleum (Beijing) Beijing¾102249 China PipeChina Beijing Pipeline Co. Ltd Beijing¾100101 China

Due to recent oil price fluctuations, oil companies have optimized assets and promoted joint ventures, leading to a need for fast, accurate oilfield asset evaluation, including development and growth costs. Oilfield development costs are dynamically influenced by internal and macroeconomic factors. Using big data analysis witha eviews economic analysis software owned by IHS (E-VIEW), a model was developed to analyze cost influencers. Research on nine main factors showed strong scientific correlations, linking expansion costs with market indexes. This provides technical support for more efficient and accurate cost estimations and predictions of oilfield assets.

关键词： subsurface energy energy extraction big data oilfield cost market modeling petroleum engineering development cost

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The accurate location of multi-phase medium interfaces in the water-soluble cavity of salt cavern gas storage

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Energy 2025年 326卷

作者： Zou, Xianjian Wang, Tongtao Yang, Chunhe Zhang, Hao Wang, Duocai State Key Laboratory of Geomechanics and Geotechnical Engineering Safety Institute of Rock and Soil Mechanics Chinese Academy of Sciences Hubei Wuhan430071 China Hubei Key Laboratory of Geo-Environmental Engineering Institute of Rock and Soil Mechanics Chinese Academy of Sciences Wuhan430071 China National Experimental Teaching Demonstration Center for Electrical and Electronic Engineering School of Electronic Information and Electrical Engineering Yangtze University Hubei Jingzhou434023 China PipeChina West East Gas Pipeline Company Shanghai200120 China

The large-scale construction of water-soluble cavities is a crucial aspect of national energy strategic reserves and emergency regulation of oil and gas. A significant technical challenge arises when attempting to locate the interface of a multiphase oil-gas-water medium in a salt cavity well during the construction of a salt cavern gas storage. To address this, an accurate location method of medium interfaces is proposed based on a distributed optical fiber temperature sensing (DTS) technique. After suitably heating the armored composite optical cable, the heating-up temperature-distance data is analyzed using both a local weighted regression algorithm and a Kalman filtering algorithm. Results indicate that precise location of the oil-brine interface in the cavity can be achieved using the temperature trend curve and filtering algorithms. The detection precision can be increased to within 0.5m in actual application, as verified by the neutron tracer logging method in a salt cavity. This method and its accompanying device can provide more reliable data support for detecting underground multiphase medium interfaces in oil-gas well engineering, thereby ensuring the construction safety of water-soluble cavities. © 2025 Elsevier Ltd

关键词： petroleum reservoir engineering

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Numerical Simulation on Oil Spilling of Submarine pipeline and Its Evolution on Sea Surface

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Computer Modeling in engineering & Sciences 2020年第9期124卷 885-914页

作者： Yi Wang Mohan Lin National Engineering Laboratory for Pipeline Safety MOE Key Laboratory of Petroleum EngineeringBeijing Key Laboratory of Urban Oil and Gas Distribution TechnologyChina University of PetroleumBeijing102249China

Due to the interaction and corrosion of the seawater,submarine pipelines are easy to be broken to spill *** special environment of subsea restricts the technical development of pipeline ***,the study on the oil spilling model of submarine pipeline is very important for predicting the movement and diffusion of spilled oil,so that oil spilling traces and relating strategies can be *** paper aims to establish an oil spilling model of a submarine pipeline,study the movement characteristics of spilled oil in seawater by numerical simulation,and determine the traces,diffusion range,time to sea surface,***,the maximum horizontal migration distance(MHMD)with corresponding time are analyzed under different oil densities,spilling speeds and seawater *** show that the MHMD decreases first and then increases while the time to achieve the MHMD increases along with increasing oil *** MHMD increases while the time to achieve the MHMD decreases,along with increasing spilling *** the MHMD and corresponding time increase along with increasing seawater *** on numerical results,a correlation of spilling distance and spilling time is proposed to give fast and accurate *** the oil reaches sea surface,oil expansion and transport are ***-Lagrange method is used in the *** and non-dynamic factors are *** show that wind velocity and water velocity are dominant in dynamic *** they are large,spilled oil moves very fast with variable directions in complex flow *** factors such as evaporation,emulsion and solution mainly reduce the volume of oil *** almost do not affect the direction and displacement of spilled *** response should be made for large wind and water velocities when the placement of oil boom is *** the correlation and simulation,emergency responses can be guided effectively to reduce the impact of submarine o

关键词： Computational fluid dynamics submarine pipeline oil spilling pollution control environmental protection

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Modeling the viscoelasto-plastic behavior of waxy crude

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petroleum Science 2013年第3期10卷 395-401页

作者： Teng Houxing Zhang Jinjun National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Oil and Gas Distribution Technology China University of Petroleum

Waxy crude oil exhibits complex rheological behavior below the pour point temperature, such as viscoelasticity, yield stress, and thixotropy, owing to the formation of a three-dimensional spongelike interlock network structure. This viscoelasto-thixotropic behavior is an important rheologieal behavior of waxy crude oils, determining the flow recovery and safe restart of crude oil pipelines. Up to now, the thixotropic models for waxy crude have been all viscoplastic models, without considering the viscoelastic part before the yield point. In this work, based on analyzing the variation of the elastic stress and viscous stress in the Mujumbar model, a new viscoelasto-plastic model is proposed, whose shear stress is separated into an elastic component and a viscous component. The elastic stress is the product of the shear modulus and elastic strain; the shear modulus is proportional to the structural parameter. For the elastic strain, we followed the line of Zhu and his coauthors and assumed that it may be expressed by an algebraic equation. The model is validated by stepwise shear rate tests and hysteresis loop tests on Daqing and Zhongyuan waxy crude. The results show that the model＇s fitting and predictive capability is satisfactory.

关键词： Thixotropy viscoelasticity viscoelasto-plastic model thixotropic model waxy crude

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A nonlinear creep damage model for gelled waxy crude

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petroleum Science 2022年第4期19卷 1803-1811页

作者： Hong-Ying Li Qing-Bo Xie Hao Sun Wei Guo Feng Yan Qing Miao Chao-Fei Nie Yu Zhuang Qian Huang Jin-Jun Zhang National Engineering Laboratory for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Bejing Key Laboratory of Urban Oil&Gas Distribution Technology/China Universityof Petroleum Beijing102249China PipeChina Pipeline R&DCenter Langfang065000China Jinan Urban Planning and Design Institute Jinan250101China

Yielding behaviors of waxy crude oil is one of the key issues of flow assurance challenges. The yielding of waxy crude under constant stress is actually a creep process of strain accumulation to structural failure,to describe the process completely and accurately is the basis of numerical simulation of restart process of the pipeline. The creep and yield behaviors of two gelled waxy crudes were investigated experimentally under different constant applied stresses. The results clearly show that the creep process of waxy crude is related to the applied stress and time. The greater the applied stress, and the longer the loaded time, the more obvious the nonlinear features. Based on the fractional calculus theory, a fractional viscous element was developed to describe the decelerated and steady creep process of gelled waxy crude. On the basis of the damage theory, an elastic damage element was proposed to describe the accelerated creep after the yielding. According to the idea of mechanical analogy, a nonlinear creep model was established by a fractional viscous element, an elastic damaged element, and an elastic element in series, which can accurately describe the whole creep and yielding process of gelled waxy crude.

关键词： Waxy crude oil Rheology Yield Creep Constitutive model Mechanical analogy

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A metaheuristic method for the multireturn-to-depot petrol truck routing problem with time windows

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petroleum Science 2019年第3期16卷 701-712页

作者： Bohong Wang Yongtu Liang Meng Yuan Haoran Zhang Qi Liao National Engineering Laboratory for Pipeline Safety/Beijing Key Laboratory of Urban Oil and Gas Distribution Technology China University of Petroleum

The petrol truck routing problem is an important part of the petrol supply *** study focuses on determining routes for distributing petrol products from a depot to petrol stations with the objective of minimizing the total travel cost and the fixed cost required to use the *** propose a mathematical model that considers petrol trucks returning to a depot multiple times and develop a heuristic algorithm based on a local branch-and-bound search with a tabu list and the Metropolis acceptance *** addition,an approach that accelerates the solution process by adding several valid inequalities is *** this study,the trucks are homogeneous and have two compartments,and each truck can execute at most three tasks *** sales company arranges the transfer amount and the time windows for each *** performance of the proposed algorithm is evaluated by comparing its results with the optimal *** addition,a real-world case of routing petrol trucks in Beijing is studied to demonstrate the effectiveness of the proposed approach.

关键词： Petrol truck routing problem Heuristic algorithm Valid inequalities Time windows

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