Passability test and simulation of sand control string with natural gas hydrates completion in large curvature hole

IF 4.6 3区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

China Geology Pub Date : 2023-01-01 DOI:10.31035/cg2022024

Hao-xian Shi , Yan-jiang Yu , Ru-lei Qin , Jun-yu Deng , Yi-xin Zhong , Li-qiang Qi , Bin Li , Bo Fan , Qiu-ping Lu , Jian Wang , Kui-wei Li , Ye-cheng Gan , Gen-long Chen , Hao-wen Chen , Zhi-ming Wu

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Abstract

To meet the requirements of marine natural gas hydrate exploitation, it is necessary to improve the penetration of completion sand control string in the large curvature borehole. In this study, large curvature test wells were selected to carry out the running test of sand control string with pre-packed screen. Meanwhile, the running simulation was performed by using the Landmark software. The results show that the sand control packer and screen can be run smoothly in the wellbore with a dogleg angle of more than 20°/30 m and keep the structure stable. Additionally, the comprehensive friction coefficient is 0.4, under which and the simulation shows that the sand control string for hydrate exploitation can be run smoothly. These findings have important guiding significance for running the completion sand control string in natural gas hydrate exploitation.

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大曲率井含天然气水合物完井防砂管柱通过性测试与模拟

为了满足海洋天然气水合物开采的要求，有必要提高完井防砂管柱在大曲率井眼中的渗透率。本研究选取大曲率测试井进行了预填筛管防砂管柱的下井测试。同时，利用Landmark软件进行了运行仿真。结果表明，防砂封隔器和筛管可以在狗腿角大于20°/30m的井筒中平稳运行，并保持结构稳定。此外，综合摩擦系数为0.4，模拟结果表明，水合物开采防砂管柱可以顺利运行。这些发现对天然气水合物开采中完井防砂管柱的下入具有重要的指导意义。©2023中国地质编辑部。

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来源期刊

China Geology GEOLOGY-

CiteScore

7.80

自引率

11.10%

发文量

275

审稿时长

16 weeks