|本期目录/Table of Contents|

[1]王晨宇,樊建春,刘书杰,等.环空带压气井保护液液位测试方法研究[J].中国安全生产科学技术,2019,15(4):77-83.[doi:10.11731/j.issn.1673-193x.2019.04.012]
　WANG Chenyu,FAN Jianchun,LIU Shujie,et al.Study on test method of liquid level of protective fluid in annular pressure gas well[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(4):77-83.[doi:10.11731/j.issn.1673-193x.2019.04.012]
点击复制

环空带压气井保护液液位测试方法研究
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年4期
页码:
77-83
栏目:
职业安全卫生管理与技术
出版日期:
2019-04-30

文章信息/Info

Title:
Study on test method of liquid level of protective fluid in annular pressure gas well
文章编号:
1673-193X(2019)-03-0077-07
作者:
王晨宇1; 樊建春1; 刘书杰2; 刘迪1; 焦田田1; 李丹1
（1.中国石油大学（北京） 机械与储运工程学院，北京 102249；2. 中海油研究总院，北京 100027)
Author(s):
WANG Chenyu1;  FAN Jianchun1;  LIU Shujie2;  LIU Di1;  JIAO Tiantian1;  LI Dan1
（1. Mechanical & Storage Engineering School，China University of Petroleum（Beijing）， Beijing 102249，China； 2. CNOOC Research Institute， Beijing 100027，China）
关键词:
液位检测试验; FIR低通滤波器; 频谱分析; 自相关分析; 声衰减系数
Keywords:
liquid level detection test; FIR lowpass filter;  spectrum analysis;  autocorrelation analysis;  acoustic attenuation coefficient
分类号:
X924.2
DOI:
10.11731/j.issn.1673-193x.2019.04.012
文献标志码:
A
摘要:
为了有效检测环空保护液位，评估气井环空带压情况，在传统回声法检测的基础上，提出了基于频谱分析及自相关分析的2种液位检测方法；搭建了液位检测试验系统，开展了不同环空压力下的液位检测试验，计算了不同压力下的环空声速；设计了FIR低通滤波器对液面回波信号进行滤波处理，同时利用了上述2种方法计算液位值并与实际值及传统液位计算方法对比，得出了声衰减系数并评判了衰减过程对液面回波信号频谱分析的影响程度。研究结果表明：设计的FIR低通滤波器适用于所建液位检测试验的滤波处理过程；频谱分析及自相关分析都能够有效检测液位高度，最大误差分别为1.65%和0.61%，自相关分析方法具有更高的精确度；声衰减系数整体较小，对液面回波信号频谱分析结果影响较小。
Abstract:
In order to effectively detect the environmental protection level of the annulus, the pressure of the annulus of the gas well is evaluated. Based on the traditional echo detection method, two liquid level detection methods based on spectrum analysis and autocorrelation analysis are proposed. The liquid level detection test system is built. The liquid level detection test under different annulus pressures was carried out, and the annulus sound velocity under different pressures was calculated. The FIR lowpass filter was designed to filter the liquid surface echo signal, and the above two methods were used. The bit value is compared with the actual value and the traditional liquid level calculation method. The sound attenuation coefficient is obtained and the degree of influence of the attenuation process on the spectrum analysis of the liquid surface echo signal is evaluated. The results show that the designed FIR lowpass filter is suitable for the filtering process of this test; spectrum analysis and autocorrelation analysis can effectively detect the liquid level height, the maximum error is 1.65% and 0.61%, respectively, and the autocorrelation analysis method has higher The accuracy of the sound attenuation coefficient is small overall, and has little effect on the spectrum analysis result of the liquid surface echo signal.

参考文献/References:

［1］石榆帆，张智，肖太平. 气井环空带压安全状况评价方法研究［J］. 重庆科技学院学报(自然科学版)，2012，14(1):97-99. SHI Yufan, ZHANG Zhi, XIAO Taiping. Research on safety evaluation method of gas well annulus pressure ［J］. Journal of Chongqing University of Science and Technology (Natural Science Edition), 2012,14(1): 97-99.
［2］BOURGOYNE A T, SCOTT S L, REGG J B. Sustained casing pressure in offshore producing wells［C］//The 1999 Offshore Technology ConferenceHouston, USA, May 3-6, 1999.
［3］曾时田.高含硫气田钻井、完井主要难点和对策［J］.天然气工业，2008,28(4):52-55. ZENG Shitian. Main difficulties and countermeasures for drilling and completion of high-sulfur gas fields ［J］. Natural Gas Industry, 2008,28(4): 52-55.
［4］XU R, WOJTANOWICZ A K. Diagnostic of sustained caing pressure from bleed-off/buildup testing patterns［C］// Society of Petroleum Engineers.Production and Operations Symposium. Oklahoma, USA, May 24-27, 2001.
［5］齐奉忠.气井环空带压的原因分析及解决措施浅析［C］//第八届石油钻井院所长会议论文集. 北京：石油工业出版社，2010.
［6］王治国，盛杰. 气井环空带压原因及目前解决措施［J］.石油化工，2011，3(7):9-10. WANG Zhiguo，SHENG Jie. Causes of air bearing annulus and current solutions［J］.Petrochemicals，2011，3(7)： 9-10.
［7］张喜明，樊建春，杨周.海上气井环空带压地面监测诊断方法研究［J］.中国安全科学学报，2015,6(6):129-135. ZHANG Ximing, FAN Jianchun, YANG Zhou.Study on the ground monitoring and diagnosis method of annulus with air pressure in offshore gas wells［J］.China Safety Science Journal,2015,6(6): 129-135.
［8］张智，王汉.多封隔器密闭环空热膨胀力学计算方法及应用［J］.钻井工程，2016,36(4):65-72. ZHANG Zhi, WANG Han. Multi-package closed-loop air-thermal expansion mechanics calculation method and its application［J］. Drilling Engineering, 2016, 36(4): 65-72.
［9］BOURGOYNE A T, SCOTT S L，REGG J . Sustained casing pressure in offshore producing wells［C］//Offshore Technology Conference. Chicago, USA, March 16-19, 1999.
［10］陈殿房，韩祥立，杨晶.油井液面探测方法探讨［J］.油气井测试，2008,17(2):60-62. CHEN Dianfang, HAN Xiangli, YANG Jing. Discussion on the detection method of oil well level［J］. Oil and Gas Well Test, 2008, 17(2): 60-62.
［11］吕思平.油井动液面测量系统的研制［D］.山东:中国石油大学(华东),2011.
［12］采油采气专业标准化委员会.油井液面测试方法: SY/T 5875-2011［S］.北京:石油工业出版社，2011: 2-4.
［13］马大猷，沈.声学手册［M］.北京：科学出版社，2004:114-131.
［14］王琦.脉冲多次回波法声速、衰减测量的研究及应用［D］.上海：同济大学，2007.
［15］杨君，袁嗣杰，吕镜清.FFT滤波性能研究［J］.信号处理，2009,25(8A):9-13. YANG Jun，YUAN Sijie，LYU Jingqing. Research on FFT filtering performance［J］.Signal Processing，2009,25(8A):9-13.

相似文献/References:

备注/Memo

备注/Memo:
收稿日期： 2019-01-18
基金项目： 国家重点研发计划项目 (2017YFC0804500);中海油科研项目（YXKY-2017-ZY-09）
作者简介： 王晨宇，硕士研究生，主要研究方向为安全监测与智能诊断。
通信作者： 樊建春，博士，教授，主要研究方向为状态监测与智能诊断、安全检测及预警、油井管完整性检测及评价、摩擦学。
更新日期/Last Update: 2019-05-09