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International Petroleum and Petrochemical technology Conference 2024, IPPTC 2024

作者： Mu, Hua-Yan Jiang, Guan-Cheng Sun, Jin-Sheng dong, Teng-Fei He, Yin-Bo College of Artificial Intelligence China University of Petroleum Beijing China College of Petroleum Engineering China University of Petroleum Beijing China PetroChina National College of Excellence Engineer China CNPC Engineering Technology R&D Company Limited China College of Science China University of Petroleum Beijing China

As the key indicators to evaluate drilling efficiency, mechanical rate of penetration (rOP) and mechanical specific energy (MSE) are affected by many uncertain factors. In the actual drilling process, it is often necessary to adjust the parameters to achieve speed and efficiency. A dual-objective model is established considering the maximization of rOP and the minimization of MSE. Which combined with the theory of mechanical specific energy and the principle of multi-objective optimization, the model parameter weights are determined by the feature importance in the random forest regression model, and the value range of rock breaking parameter is optimized, realize the fusion of physical model and data model. The results show that, in the four strata of well X, the average rOP of T2k1 stratum is increased by 48.6% and the average MSE is decreased by 26.6%, the average rOP of T1b3 stratum is increased by 89.9% and the average MSE is decreased by 33.8%, the average rOP of the T1b2 stratum was increased by 41.3% and the average MSE was decreased by 39.0%, the average rOP of the T1b1 stratum was increased by 29.2% and the average MSE was decreased by 37.3%, which met the dual objectives of maximizing the rOP and minimizing the MSE. Compared with the traditional single-objective optimization method, the established dual-objective model is more in line with the needs of complex drilling engineering, and the fusion of physical model and data model can reduce certain human error. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Infill drilling

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research on the Calculation Method of CO2 Storage Volume and its Application in L reservoir

Research on the Calculation Method of CO2 Storage Volume and...

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2025 International Petroleum technology Conference, IPTC 2025

作者： Wu, Zangyuan Feng, Qihong Lian, Liming Meng, Xiangjuan Xu, YanLong Wang, Sen Wu, Kuankuan Zhou, Wei Luo, Min Li, Yang Fan, Jin Cheng, ronghong Wu, Mimi Huang, Xingning School of Petroleum Engineering China University of Petroleum East China China Tarim Oilfield Company PetroChina Korla China R&D Center for Ultra-Deep Complex Reservoir Exploration and Development CNPC Korla China Research Institute of Petroleum E&D Petrochina CNPC Beijing China Chengdu CK Energy Technology Co. Ltd. Chengdu China

ISBN: (纸本)9781959025436

This paper addresses the difficulty in calculating CO2 storage volume due to the complexity of CO2 occurrence states in the CCUS process. A method for calculating CO2 storage volume is proposed, designing well networks throughout the entire lifecycle of CCUS to meet the demands of both CO2 EOr and storage stages. This extends the implementation time of CO2 EOr to enhance oil recovery and ensures effective CO2 storage while maximizing oil production, aligning with the global strategy of green and low-carbon development. Initially assuming that the pore volume of produced hydrocarbons is completely occupied by CO2 and considering dissolution retention and mineral reaction retention, the theoretical carbon storage volume of the target reservoir is predicted to determine the upper limit of storage volume. Building on flash calculation, utilizing equations of state-activity models, equations of state-equations of state models, and chemical reaction kinetics models, model parameters were fitted and corrected through experiments on CO2 multiphase non-isothermal flow, dissolution, solid-phase deposition, and mineral reactions to develop a CO2 storage volume prediction model and proprietary software. Finally, reliability verification was conducted using analogous block comparison methods. The technology proposed in this paper has been applied in the integrated CO2 EOr and storage scheme for the L reservoir, predicting saturation fields, solubility fields, and various storage mechanisms during the CO2 flooding and storage process and providing three-dimensional field changes. results indicate that the theoretical carbon storage upper limit for the L reservoir is 9.88 million tons;under current reservoir temperature and pressure conditions, CO2 dissolution loss in formation connate water is 0.05 t/m3, and in residual oil it is 0.32 t/t, resulting in an effective storage volume of 7.47 million tons (with analogous block comparison results at 7.78 million tons, verifying the rel

关键词： Oil well flooding

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Integrated Well Network design Mode for CO2 EOr and Storage and its Application in L reservoir

Integrated Well Network Design Mode for CO2 EOR and Storage ...

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2025 International Petroleum technology Conference, IPTC 2025

作者： Wu, Zangyuan Tang, Yongliang Lian, Liming Zhou, daiyu Zhao, Haitao Shao, Guangqiang Feng, Qihong Zhou, Wei Li, Hong Bian, Wanjiang Zhang, Liang du, Hongbao Luo, Min Huang, Xingning Tarim Oilfield Company PetroChina Xinjiang Korla China R&D Center for Ultra-Deep Complex Reservoir Exploration and Development CNPC Xinjiang Korla China School of Petroleum Engineering China University of Petroleum East China Qingdao China Research Institute of Petroleum E&D Petrochina CNPC Beijing China Chengdu CK Energy Technology Co. Ltd. Sichuan Chengdu China

ISBN: (纸本)9781959025436

This paper addresses the challenge of difficulty in adjusting late-stage production in water-flooded reservoirs and proposes an integrated well network design mode for CO2 enhanced oil recovery (EOr) and storage. The well network is designed according to the full life cycle of carbon capture, utilization, and storage (CCUS), meeting the requirements of both CO2 EOr and storage phases. It extends the implementation time of CO2 EOr schemes to enhance oil recovery while ensuring effective CO2 storage, aligning with the overall strategy of global green and low-carbon development. The overall approach involves the use of a three-dimensional CO2 flooding injection and recovery well network, with progressive development in the vertical stratigraphic layers to maximize the utilization of existing old wells. The stratigraphic reconstruction involves the CO2 flooding injection and recovery well network, ensuring that new gas injection wells meet the requirements for CO2 injection processes and production rates, while also serving as replacements for gas injection in other stratigraphic layers. Production wells make use of the original old wells, and well completion methods are adjusted to achieve the development of replacement layers. The "top injection, middle production, bottom support" three-stage development method is designed to fully utilize the high points of reservoir microstructures and bottom water energy. Finally, well network optimization is achieved through streamline tracking simulation methods. The proposed technology has been applied in the CO2 enhanced oil recovery plan for the L reservoir. Initially focusing on CO2 flooding for oil recovery and shifting to CO2 storage later, it is projected to achieve a cumulative CO2 injection of tens of millions of tons over 46 years (including 40% recycled injection), with a displacement factor reaching 1.57PV. After deducting the recycled carbon amount, the cumulative carbon storage exceeds 6 million tons, affecting a vo

关键词： Crude oil

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A Passive Loss of Mains detection Scheme for Inverter based distribution Energy resources

A Passive Loss of Mains Detection Scheme for Inverter based ...

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IEEE Power India Conference

作者： Nischitha Gangireddy O. d. Naidu Gopakumar P R&D Engineer Grid Automation Hitachi Energy Bangalore India Senior Principal Scientist Hitachi Energy Bangalore India National Institute of Technology Calicut Kerala India

ISBN: (数字)9798350367065

ISBN: (纸本)9798350367072

distributed energy resources based on renewable energy have significantly developed over the past few decades because of the need to include environmentally friendly energy sources due to their advantages of clean and non-exhaustible nature of energy. due to its unpredictable and uncertain nature, this form of generation poses technological difficulties in terms of operation and control. The integration of these distributed generating systems to the main grid comes with certain challenges, out of which Islanding/ Loss of Mains detection is of prior importance. A passive loss of mains detection technique for inverter-based distribution energy resources is proposed in this paper. The developed method constructs the islanding detection indices by considering the three-phase voltage and frequency at the Point of Common Coupling. An extensive assessment of the proposed method is conducted by using PSCAd/EMTdC simulations and field data. The proposed method has less Non-detection Zone and is able to determine all types of events accurately. It is observed that the method is superior in terms of accuracy and speed when compared to other currently available techniques.

关键词： renewable energy sources Accuracy Voltage measurement Sensitivity Islanding Energy resources data models distributed power generation Power systems Protection

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Insights into microbiota community dynamics and flavor development mechanism during golden pomfret(Trachinotus ovatus)fermentation based on single-molecule real-time sequencing and molecular networking analysis

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Food Science and Human Wellness 2024年第1期13卷 101-114页

作者： Yueqi Wang Qian Chen Huan Xiang dongxiao Sun-Waterhouse Shengjun Chen Yongqiang Zhao Laihao Li Yanyan Wu Key Laboratory of Aquatic Product Processing Ministry of Agriculture and Rural Affairs of The People’s Republic of ChinaNational R&D Center for Aquatic Product ProcessingSouth China Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhou 510300China Co-Innovation Center of Jiangsu Marine Bio-industry Technology Jiangsu Ocean UniversityLianyungang 222005China School of Chemical Sciences The University of AucklandAuckland 92019New Zealand Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic UniversityDalian 116034China

Popular fermented golden pomfret(Trachinotus ovatus)is prepared via spontaneous fermentation;however,the mechanisms underlying the regulation of its flavor development remain *** study shows the roles of the complex microbiota and the dynamic changes in microbial community and flavor compounds during fish ***-molecule real-time sequencing and molecular networking analysis revealed the correlations among different microbial genera and the relationships between microbial taxa and volatile *** underlying flavor development were also elucidated via KEGG based functional ***,Shewanella,and Staphylococcus were the dominant microbial ***-nine volatile compounds were detected in the fermented fish samples,with thirteen identified as characteristic volatile compounds(rOAV>1).Volatile profiles resulted from the interactions among the microorganisms and derived enzymes,with the main metabolic pathways being amino acid biosynthesis/metabolism,carbon metabolism,and glycolysis/*** study demonstrated the approaches for distinguishing key microbiota associated with volatile compounds and monitoring the industrial production of high-quality fermented fish products.

关键词： Fermented golden pomfret Microbiota community Volatile compound Co-occurrence network Metabolic pathway

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Field Test of Lithium Extraction in Oilfield Associated Water: A Case Study of YQ Treatment Station

Field Test of Lithium Extraction in Oilfield Associated Wate...

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2024 Abu dhabi International Petroleum Exhibition and Conference, AdIPEC 2024

作者： Miao, Xinyue Wen, Zhang ren, Yongcang Wang, Min Wang, Kelin Zhao, Zhiyong Liu, Zhiming Han, Guoqiang Ma, rui Chen, Xin Zhang, Lei deng, Qianxing Tarim Oilfield Company CNPC Xinjiang Province Korla City China Engineering Research Center for Ultra-deep Complex Reservoir Exploration and Development Xinjiang Uygur Autonomous Region Xinjiang Province Korla City China R&D Center for Ultra Deep Complex Reservior Exploration and Development CNPC Xinjiang Province Korla City China Southwest Petroleum University Sichuan Province Chengdu City China Xinjiang Key Laboratory of Ultra-deep Oil and Gas Xinjiang Province Korla City China Shanghai Huiliyuan Technology Co. Ltd. Shanghai City China BGP CNPC Hebei Province China

ISBN: (纸本)9781959025498

The oilfield associated water is complex in composition and poses significant hazards, necessitating treatment to prevent environmental pollution. Taking the Yingqian Treatment Station as an example, it processes approximately 2,400m3 of water daily. Sampling and testing revealed that the total hardness of the water exceeds 20,000mg/L, with a Mg2+ concentration of about 1,200mg/L. Most importantly, the Li+ concentration reached 150mg/L, meeting the requirements for economic development (≥50mg/L). Consequently, related research and experiments were promptly initiated. Owing to the associated water's high total hardness and low lithium content, which significantly differ from saturated brine, traditional lithium extraction techniques cannot be directly applied. In response, research has identified that manganese-based adsorbents offer the advantage of high adsorption capacity, but require concentrated acid for desorption. Conversely, bipolar membrane electrodialysis has the merit of producing lithium products with high purity;however, the byproduct concentrated acid is a hazardous chemical that necessitates proper disposal. Consequently, a combined technological approach has been proposed to leverage the strengths of both methods. The lithium extraction experiment from oil-gas field associated water at the YQ Treatment Station in China was conducted from May to June 2023, successfully producing 2.05kg of monohydrate lithium hydroxide from 116m3 of associated water. However, the experiment encountered numerous issues. For instance, the LiCl solution after a single desorption with HCl failed to meet the feed concentration requirements for subsequent processes. After extensive argumentation, the solution was adjusted by using a mixture of LiCl and HCl from the first desorption to replace HCl as the desorbent, and adjusting the desorption process from one stage to two, thereby increasing the LiCl concentration. The daily production of associated water in blocks such as Yi

关键词： Gas industry

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Efficient aluminum removal and microorganism inhibition in ready-to-eat jellyfish by slightly acidic electrolyzed water

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Food Bioscience 2023年第3期53卷 1051-1059页

作者： Chunsheng Li Wanqing Sun Shucheng Liu Chuang Pan di Wang Yang Feng Jianwei Cen Shengjun Chen Key Laboratory of Aquatic Product Processing Ministry of Agriculture and Rural AffairsNational R&D Center for Aquatic Product ProcessingSouth China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhou510300China Co-Innovation Center of Jiangsu Marine Bio-industry Technology Jiangsu Ocean UniversityLianyungang222005China Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic UniversityDalian116034China College of Food Science and Technology Guangdong Ocean UniversityZhanjiang524088China

ready-to-eat jellyfish production is restricted by the high aluminum residue and unable use of thermal *** this study,the combined dealumination and sterilization by slightly acidic electrolyzed water(SAEW)were used to produce ready-to-eat *** optimal aluminum removal amount reaching 120.17 mg/kg was obtained after response surface *** observation through optical microscope after Masson staining and scanning electron microscope showed that the microstructure of jellyfish was not destroyed after SAEW *** increase of total plate count(TPC)and pH value during storage was significantly inhibited by SAEW,while the other properties did not changed ***,especially Staphylococcus epidermidis was dominant in the ready-to-eat jellyfish and many spoilage bacteria were inhibited by *** correlation network maps showed that Pseudomonas and Shewanella contributed most to the increase of TPC and pH value in the control group,while the correlated microbial genera mainly changed to Acinetobacter,Cutibacterium,and Pseudomonas after SAEW treatment,resulting in the decrease of hardness and chewiness of ready-to-eat jellyfish during *** inhibited Pseudomonas contributed most to the decrease of TPC and pH value after SAEW *** study provides a novel technology of dealumination and sterilization for ready-to-eat jellyfish.

关键词： ready-to-eat jellyfish Slightly acidic electrolyzed water Aluminum Microbial community Correlation network

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Charging Techniques of Electric Vehicle and It's Impact on distribution Grid

Charging Techniques of Electric Vehicle and It's Impact on D...

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IEEE region 10 Humanitarian technology Conference (r10-HTC)

作者： Arpit Sheth Shefali Talati Siddharthsingh K. Chauhan Shivam Shrivastava Zankhit Vora Department of Electrical Engineering Institute of Technology Nirma University Ahmedabad India Deputy Manager ERDA Vadodara India Engineer (R&D) ERDA Vadodara India

The current Electric Vehicles (EVs) market is ex-periencing significant growth. However, the increasing demand for charging these EVs' large batteries has the potential to negatively impact the stability of the distribution grid if their charging is not properly coordinated. The escalation in charging requirements could lead to various issues such as under-voltages (lower than required voltage levels), heightened energy losses, imbalanced power distribution across different phases, higher peak loads during specific time periods, and the risk of overloading power lines and transformers. In this paper, we delve into a comprehensive study that focuses on the effects of two distinct charging approaches: Uncoordinated Charging and Coordinated Charging. To assess their impacts, we utilize the standard IEEE-13 Node Test Feeder, which is a benchmark power distribution system used for evaluating the performance of distribution grids. The analysis is rooted in the context of IEEE Standard 1159–2019, which defines criteria for power quality in electrical *** essence, the study underscores the significance of coordinating EV charging to maintain a robust and stable distribution grid. By adhering to coordinated charging methods, the potential disruptions and instabilities associated with uncontrolled charging loads can be substantially alleviated. Our findings offer valuable technical evidence to support the implementation of coordinated charging strategies as a means to ensure the sustainable integration of EV s into existing power distribution systems.

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Novel insight into the formation and inhibition mechanism of dipeptidyl peptidase-Ⅳ inhibitory peptides from fermented mandarin fish(Chouguiyu)

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Food Science and Human Wellness 2023年第6期12卷 2408-2416页

作者： daqiao Yang Chunsheng Li Laihao Li Xianqing Yang Shengjun Chen Yanyan Wu Yang Feng Key Laboratory of Aquatic Product Processing Ministry of Agriculture and Rural AffairsNational R&D Center for Aquatic Product ProcessingSouth China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhou 510300China Co-Innovation Center of Jiangsu Marine Bio-industry Technology Jiangsu Ocean UniversityLianyungang 222005China College of Food Science and Engineering Ocean University of ChinaQingdao 266003China Collaborative Innovation Center of Seafood Deep Processing Dalian Polytechnic UniversityDalian 116034China

Fermented foods are a potential source to produce novel dipeptidyl peptidase-IV inhibitory peptides(d4IPs).In this study,the fermented mandarin fish(Chouguiyu)was used to screen d4IPs and their formation mechanism was studied by metagenomics and peptidomics.A total of 400 d4IPs with dPP-IV inhibition structure and high hydrophobicity were *** correlation network map showed that Lactococcus,Bacillus,Lysobacter,Pelagivirga,Kocuria,Escherichia,Streptococcus,and Peptostreptococcus were significantly correlated with the most *** stable d4IPs,including KAGArALTdAETAT,GEKVdFddIQK,VVdAdEMYLKGK,and GQKdSYVGdEAQ were respectively from the precursor proteins parvalbumin,troponin,myosin,and actin,and were mainly formed by the hydrolysis of subtilisin(EC 3.4.21.62),aspartic proteinase(EC 3.4.23.1),thermolysin(EC 3.4.24.27),oligopeptidase B(EC 3.4.21.83),and proteinase P1(EC 3.4.21.96)from Bacillus,Kocuria,Lysobacter,Lactococcus,and *** inhibition mainly resulted from the hydrogen bond and salt bridge between d4IPs and dPP-IV *** study provides important information on the proteases and related microbial strains to directionally prepare d4IPs in Chouguiyu.

关键词： Chouguiyu dPP-IV inhibitory peptide Microorganism Protease Correlation network

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A Three-Port dC-dC Converter for Solar PV Integration in dC Off-Grid Systems: design and Control

A Three-Port DC-DC Converter for Solar PV Integration in DC ...

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Energy Technologies for Future Grids (ETFG), IEEE International Conference on

作者： Anmol ratna Saxena Ashima Kulshreshtha Department of Electrical Engineering National Institute of Technology Delhi Delhi Bharat India R&D Validation Engineer Signify Innovations Lighting Noida Bharat India

In dc off-grid systems, each solar photovoltaic (PV) source is conventionally connected in parallel to the dc bus using a second-order boost converter which also performs maximum power point tracking (MPPT). However, this requires multiple dc-dc converters leading to higher component count, lower system efficiency, sub-system interactions, etc. In order to obviate these issues a three-port (double input and single output) fifth-order dc-dc boost converter (FOTPC) is proposed and analyzed, in this paper, for interfacing a couple of solar PV sources with a dc bus in an off-grid systems. The converter has two switches that can be individually controlled to regulate the maximum power point of both solar panels over a wider range of PV voltage and current variation. The operating modes of the converter are described for power extraction from both sources. The paper also presents the steady-state and time-domain analysis of the converter in continuous-conduction mode. Small-signal discrete-time model of FOTPC is developed and used for controller design and stability analysis. The converter operation is validated on a 48 V bus system with nominal power of 200 W.

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