使用盘管气举辅助提升的海上重油井井筒温度现场研究

IF 1.2 4区地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS

Geofluids Pub Date : 2023-12-18 DOI:10.1155/2023/8936092

Kechao Gao, Qibin Zhao, Xinghua Zhang, Suogui Shang, Lijun Guan, Jizhi Li, Na Xu, Dagui Cao, Liang Tao, Hongxing Yuan, Yonghai Gao

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引用次数: 0

摘要

海上重油资源丰富，但与陆上开采相比，难度更大，成本更高。当原油流经海水段时，原油温度下降较快，容易在井筒中凝固，导致油井产量降低。在深水井筒中，原油的降温现象更加明显。然而，注入低温气体会对地层生产流体产生冷却作用，从而产生负面影响。该模型分析了盘管运行深度、注气温度、注气量、盘管直径和原油产量对深水和浅水井筒重油温度分布的影响。通过分析和总结规律，提出了深水和浅水环境下各参数的选择建议。

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Temperature Field Study of Offshore Heavy Oil Wellbore with Coiled Tubing Gas Lift-Assisted Lifting

Offshore heavy oil resources are abundant, but they have greater difficulty and higher costs compared to onshore extraction. When crude oil flows through the seawater section, the temperature of the crude oil decreases faster, making it susceptible to solidification in the wellbore and resulting in lower well production. The cooling of crude oil becomes more pronounced in deep-water wellbore. However, the injection of low-temperature gas will have a cooling effect on the formation production fluid, which will have a negative effect. The model analyzes the effects of coiled tubing running depth, gas injection temperature, gas injection volume, coiled tubing diameter, and crude oil production on the temperature distribution of heavy oil in deep-water and shallow water wellbores. We propose recommendations for the selection of each parameter for deep and shallow water environments by analyzing and summarizing the laws.

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来源期刊

Geofluids 地学-地球化学与地球物理

CiteScore

2.80

自引率

17.60%

发文量

835

期刊介绍： Geofluids is a peer-reviewed, Open Access journal that provides a forum for original research and reviews relating to the role of fluids in mineralogical, chemical, and structural evolution of the Earth’s crust. Its explicit aim is to disseminate ideas across the range of sub-disciplines in which Geofluids research is carried out. To this end, authors are encouraged to stress the transdisciplinary relevance and international ramifications of their research. Authors are also encouraged to make their work as accessible as possible to readers from other sub-disciplines. Geofluids emphasizes chemical, microbial, and physical aspects of subsurface fluids throughout the Earth’s crust. Geofluids spans studies of groundwater, terrestrial or submarine geothermal fluids, basinal brines, petroleum, metamorphic waters or magmatic fluids.