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    Research on the Rate of Penetration Prediction Method Based on Stacking Ensemble Learning by Yangfeng Ren, Baoping Lu, Shuangjin Zheng, Kai Bai, Lin Cheng, Hao Yan, Gan Wang

    Published 2023-01-01
    “…In order to accurately predict the ROP of an oilfield in Xinjiang working area, a ROP prediction model based on the historical drilling data of this working area was established based on stacking ensemble learning. …”
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    Multifactor task allocation problem in wireless sensor and actuator networks by Lei MU, Jian-ying CHEN, Xiao-mei QU, Tao LIU

    Published 2017-10-01
    “…Task allocation is an essential part of many military applications of WSAN such as intelligent minefield.The key problem of task allocation decision in these systems for the optimal scheme on task allocation is how to obtain the node-target assignment.Combing with the factors of target’s parameters and node’s own status,the various influence factors of task efficiency were analyzed and the positive and negative indicators were processed by range normalization method separately.The linear-weighted task efficiency function was proposed in the applications of WSAN such as intelligent minefield.It can be utilized as the evaluation index of assignment schemes since it reflected the integrated impact of target’s threat and node’s value on the system more comprehensively.Task efficiency function can be constructed flexibly based on the demand of different multifactor task allocation application.The essence of the problem was how to make node-target assignment to achieve the maximum task efficiency of the whole system.This problem turned into assignment problem and can be solved.Finally,an application was implemented to demonstrate this scheme.The results show that the model is suitable for small-scale multifactor task allocation problem in intelligent minefield system.…”
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  8. 188

    Operation Control of In Situ Combustion Based on the Material Balance Equation by Haiyan Jiang, Shibao Yuan, Lehong Li, Jiao Wang, Hao Wang, Tianyue Li

    Published 2020-01-01
    “…The reasonable injection and production parameters for the oilfield are calculated by using the oilfield parameters. …”
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    Alkali Effect on Alkali-Surfactant-Polymer (ASP) Flooding Enhanced Oil Recovery Performance: Two Large-Scale Field Tests’ Evidence by Chen Sun, Hu Guo, Yiqiang Li, Guipu Jiang, Ruicheng Ma

    Published 2020-01-01
    “…This paper compares two typical large-scale field tests (B-1-D SASP and B-2-X WASP) completed in Daqing Oilfield and analyzes and discusses the causes of this difference. …”
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    A Two-Phase Numerical Model of Well Test Analysis to Characterize Formation Damage in Near-Well Regions of Injection Wells by Jia Zhang, Shiqing Cheng, Shiying Di, Zhanwu Gao, Rui Yang, Pengliang Cao

    Published 2021-01-01
    “…Formation damage usually occurs in near-well regions for injection wells completed in offshore oilfields under the development of line drive patterns. …”
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    Effect of CO2 Huff and Puff Rounds on Crude Oil Properties by Qionglin Shi, Sha Gong, Xiaoping Qin

    Published 2023-01-01
    “…In view of the deterioration of oil well liquid supply capacity and oil increase effect after multiple rounds of carbon dioxide (CO2) huff and puff, according to the actual conditions of the Ng12 reservoir in the XA oilfield, an indoor physical simulation experimental model was established. …”
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