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[1]李一博,李红涛,赵强,等.基于绝热火焰温度的空气钻井井下燃爆界限预测方法研究*[J].中国安全生产科学技术,2023,19(8):59-65.[doi:10.11731/j.issn.1673-193x.2023.08.009]
　LI Yibo,LI Hongtao,ZHAO Qiang,et al.Prediction method of downhole explosion limit in air drilling based on adiabatic flame temperature[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(8):59-65.[doi:10.11731/j.issn.1673-193x.2023.08.009]
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基于绝热火焰温度的空气钻井井下燃爆界限预测方法研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年8期
页码:
59-65
栏目:
职业安全卫生管理与技术
出版日期:
2023-08-31

文章信息/Info

Title:
Prediction method of downhole explosion limit in air drilling based on adiabatic flame temperature
文章编号:
1673-193X(2023)-08-0059-07
作者:
李一博1; 李红涛1; 赵强2; 孟英峰1; 李皋1; 黄婉妮1
（1.西南石油大学 油气藏地质及开发工程国家重点实验室，四川 成都 610500；
2.中国石油集团渤海钻探工程有限公司第四钻井工程分公司，河北 沧州 062450）
Author(s):
LI Yibo1;  LI Hongtao1;  ZHAO Qiang2;  MENG Yingfeng1;  LI Gao1;  HUANG Wanni1
(1.State Key Laboratory of Oil & Gas Reservoir Geology and Development,Southwest Petroleum University,Chengdu Sichuan 610500,China;
2.China Petroleum Bohai Drilling Engineering Co.,Ltd.Fourth Drilling Engineering Branch,Cangzhou Hebei 062450,China)
关键词:
绝热火焰温度; 燃爆界限; 空气钻井; 快速预测
Keywords:
adiabatic flame temperature; explosion limit;  air drilling;  rapid prediction
分类号:
X932；X937
DOI:
10.11731/j.issn.1673-193x.2023.08.009
文献标志码:
A
摘要:
为进一步准确、高效预测空气钻井井下燃爆界限，首先基于恒压、恒焓原则下的绝对焓守恒理论，推导出CHO化合物燃烧的绝热火焰温度普适模型，提出使用绝热火焰温度预测空气钻井井下燃爆界限的方法；然后利用高温高压（0.1×106~10×106 Pa，20~90 ℃）条件下的甲烷-空气燃爆实验数据，分析燃爆界限预测结果的有效性；最后，以马1-X井为例，提出基于绝热火焰温度预测燃爆界限的钻井现场应用方法。研究结果表明：预测结果与实验结果一致性较高，最大绝对误差为3.84%；随着井深增加，井下燃爆界限范围不断变宽，燃爆上限变化幅度大于燃爆下限；通过摩尔分数与体积流量之间关系，能够使燃爆界限以甲烷产量的形式得以表现。研究结果可实现在钻井现场快速、准确预测燃爆界限，为预防井下燃爆、提高空气钻井安全性提供一定参考。
Abstract:
In order to accurately and efficiently predict the downhole explosion limit of air drilling,based on the absolute enthalpy conservation theory under the principle of constant pressure and constant enthalpy,a universal model of adiabatic flame temperature for CHO compound combustion was derived,and a further method of using the adiabatic flame temperature to predict the downhole explosion limit of air drilling was proposed.The data from high temperature and high pressure (0.1×106~10×106 Pa,20~90 ℃) methane-air explosion experiment were used to analyze the effectiveness of the prediction results of explosion limit.Taking Ma 1-X well as an example,the application method in drilling site to predict the explosion limit based on adiabatic flame temperature was introduced.The results show that the prediction results of this method are highly consistent with the experimental results,and the maximum absolute error is 3.84%.As the well depth increases,the range of downhole explosion limit continues to widen,and the variation amplitude of upper limit is larger than that of lower limit.The explosion limit can be expressed in the form of methane production by the relationship between mole fraction and volume flow rate.The prediction method can quickly and accurately predict the explosion limit in the drilling site,and provide some reference significance for preventing the downhole explosion and improving the safety of air drilling.

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相似文献/References:

[1]马秋菊,万孟赛,邵俊程,等.多元可燃气体爆炸极限理论预测模型研究*[J].中国安全生产科学技术,2021,17(4):54.[doi:10.11731/j.issn.1673-193x.2021.04.009]
　MA Qiuju,WAN Mengsai,et al.Study on theoretical prediction model for explosion limit of multi-component combustible gases[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(8):54.[doi:10.11731/j.issn.1673-193x.2021.04.009]

备注/Memo

备注/Memo:
收稿日期： 2023-02-12
* 基金项目： 国家自然科学基金项目(52174008)
作者简介： 李一博，博士研究生，主要研究方向为气体钻井、井下燃爆等。
通信作者： 李红涛，博士，副研究员，主要研究方向为欠平衡钻井、控压钻井、多相流等。
更新日期/Last Update: 2023-09-07