{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T14:14:01Z","timestamp":1753884841192,"version":"3.41.2"},"reference-count":23,"publisher":"World Scientific Pub Co Pte Ltd","issue":"13","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52002315"],"award-info":[{"award-number":["52002315"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Shaanxi Provincial Technology Innovation Guidance Special Fund","award":["2017CGZH-HJ-08"],"award-info":[{"award-number":["2017CGZH-HJ-08"]}]},{"name":"Xian Shiyou University Graduate Innovation and Practice Ability Training Project","award":["YCS19213093"],"award-info":[{"award-number":["YCS19213093"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Patt. Recogn. Artif. Intell."],"published-print":{"date-parts":[[2021,10]]},"abstract":"<jats:p> As intelligence technology develops, there is a higher requirement for computing speed and accuracy of water injection system simulation. In this paper, aiming at the tree-shaped water injection pipe network system of large-scale oilfields, based on the energy equation for calculating the pressure drop [Formula: see text] of pipe section, a mathematical model of the pipeline unit and the node unit is established, and finally, a mathematical model of pipe network for the entire water injection system is established; then, the improved iterative algorithm is used to solve the simulation model of water injection system. In this way, we determine the boundary calculation conditions, take the water injection station as reference node, and use the maximum pressure of water injection well as the initial value of the reference node for calculation, which reduces the number of iterations in model calculation; by comparing the simulation results of different iteration steps, 0.01 is selected as the iteration step size due to its higher calculation accuracy; and the calculation process has also been optimized. The process of solving the characteristic matrix [Formula: see text] is combined with the process of calculating the pressure drop [Formula: see text] of pipe section, and placed outside the algorithm loop, thereby shortening the calculation time of a single cycle and reducing the calculation amount of the algorithm. The application cases show that the proposed optimization algorithm for water injection system pipe network simulation can be used as an effective method to improve the solution speed and calculation accuracy of the simulation algorithm of tree-shaped water injection system in large-scale oilfields. <\/jats:p>","DOI":"10.1142\/s021800142159045x","type":"journal-article","created":{"date-parts":[[2021,11,15]],"date-time":"2021-11-15T08:05:02Z","timestamp":1636963502000},"source":"Crossref","is-referenced-by-count":0,"title":["Optimization of Pipe Network Simulation Algorithm for Tree-Shaped Water Injection System in Large-Scale Oilfield"],"prefix":"10.1142","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0349-1170","authenticated-orcid":false,"given":"Yan","family":"Ruan","sequence":"first","affiliation":[{"name":"Shaanxi Provincial Key Laboratory of Oil and Gas, Well Measurement and Control Technology, Xi\u2019an 710065, Shaanxi, P. R. 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