压裂液对四通管冲蚀磨损的仿真分析

钟功祥; 胥卜轩; 谢锐; 程柯文; 吴陈

doi:10.13433/j.cnki.1003-8728.20200099

压裂液对四通管冲蚀磨损的仿真分析

doi: 10.13433/j.cnki.1003-8728.20200099

西南石油大学石油天然气装备教育部重点实验室，成都　610500

详细信息

作者简介:
钟功祥（1962−），教授，硕士生导师，研究方向为石油机械工程，13458599070，973786455@qq.com

中图分类号: TG156
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- 被引次数: 0
出版历程
- 收稿日期: 2019-11-14
- 网络出版日期: 2021-04-16
- 刊出日期: 2021-04-16

Simulation Analysis of Erosion Wear Induced by Hydraulic Fracturing Fluid in Cross-pipe

Key Laboratory of Ministry of Education of Petroleum and Natural Gas Equipment, Southwest Petroleum University, Chengdu 610500, China

摘要

摘要: 在页岩气压裂开采过程中，为了提高压裂效率，部分井场在地面采用一种新型的高压管汇快接装置。针对该装置中四通管处的冲蚀磨损问题，基于DPM冲蚀预测模型，利用FLUENT软件研究水力压裂下快接管汇装置的四通部位的冲蚀磨损规律。结果表明，冲蚀集中面位于相贯线及其附近的管壁上；质量流不变的情况下，随着粒度的增大，相贯线上最大冲蚀率呈指数式降低，管壁上最大冲蚀率先增大后减小；质量流不变的情况下，随着黏度的增大，最大冲蚀磨损量增大,且随着粒径的增大，其变化规律由对数型向指数型过渡。
- 水力压裂 /
- 地面管汇 /
- 四通 /
- DPM /
- 冲蚀磨损
Abstract: In the process of shale gas fracturing, a new type of high-pressure manifold quick-connection device is used in some well to improve the hydraulic fracturing efficiency. In order to study the erosion wear law of the cross-pipe in the device during hydraulic fracturing, the DPM erosion prediction model and FLUENT software are used in this analysis. The results showed that the erosion-concentration-area is mainly located on the intersecting lines and the pipe wall near them; When the mass flow is constant, the maximum erosion rate on the interseciting lines decreases exponentially with the increase of particle size, and the maximum erosion rate on the pipe wall first increases and then decreases; When the mass flow is constant, the maximum erosion rate increases with the increase of viscosity. And the law of maximum erosion rate changing with viscosity changes from the logarithmic type to exponential type with the increase of particle size at the same time.
- Hydraulic Fracturing /
- Manifold /
- Cross-pipe /
- DPM /
- Erosion Wear

HTML全文

图 1 四通管模型示意图

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图 2 网格示意图

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图 3 液相流动特征云图

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图 4 x=100 mm截面流速云图

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图 5 侧流流线图

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图 6 典型截面流速云图

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图 7 监测线速度曲线图

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图 8 支撑剂颗粒运动追踪图

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图 9 漩涡区域液、固相速度对比图

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图 10 侧流液、固相流线对比图

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图 11 四通管处冲蚀磨损云图

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图 12 四通管处冲蚀磨损云图

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图 13 区域A、B最大冲蚀率拟合曲线图

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图 14 不同黏度、粒径的冲蚀率图

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表 1 区域A、B最大冲蚀率表

颗粒粒径D/mm	区域A最大冲蚀率E/（kg·m⁻²·s⁻¹）	区域B最大冲蚀率E/（kg·m⁻²·s⁻¹）
20目（0.85）	1.34 × 10⁻³	2.21 × 10⁻⁴
30目（0.6）	1.81 × 10⁻³	2.86 × 10⁻⁴
40目（0.425）	1.88 × 10⁻³	3.82 × 10⁻³
50目（0.3）	2.22 × 10⁻³	4.44 × 10⁻⁴
60目（0.25）	2.67 × 10⁻³	4.64 × 10⁻⁴
80目（0.18）	3.44 × 10⁻³	3.54 × 10⁻⁴
100目（0.15）	3.74 × 10⁻³	3.29 × 10⁻⁴

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