智能分采与轮采一体化管柱设计及应用

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中图分类号：TE934.1 文献标志码：B doi：10.3969/j.issn.1001-3482.2025.06.011

Abstract：The eastern oilfield in the South China Sea is characterized by scarce well slots and great potential in existing wels；the botom water is advancing rapidly，and the joint production effct is poor. Theplatform’scapacity for water treatment is limited，and there are dificulties in extracting liquid and increasing oil content.To further enhance the recovery rate，based on the optimization of existing technologies such as alternate production in new and mature wellbores，intellgent separate production， and water control and oil stabilization，an integrated pipe string for intelligent separate production and alternate production was developed，involving inteligent production allocator，azimuth perforation，and injection -production joint commissioning digital technology，which combined the advantages of the alternate production pipe string for branch wels，intelligent alternate production pipe string，and water control and oil stabilization pipe string.The string could be used for stratified or segmented separate and joint production in new branch welbores，as well as alternate production and joint production in mature wellbores.Field application tests were conducted in the C14H2 wellof theCoilfield in the eastern part of the South China Sea.Three electrically controlled production alocators were installed to control the tristage separate and joint production within the 528 meter horizontal section of the new welbore，while one hydraulically controlled production allocator was installed to control the alternate and joint production between the new and mature wellbores.Application results show that for the new branch well C14H2，the initial test production of oil is 102m3/d . Meanwhile，for the C14H1 well，under the system of joint production in both new and mature wellbores， the oil production will increase by 51m3/d

Key words：branch well；separate production and alternate production；integrated pipe string; intelligent distributor

海上油气田开发前期投资大，成本高，对单井产量要求高[1]。（剩余5883字）