[1]韩 雄,庞东晓,王 峰.油气井试油作业数字井筒建设实践[J].油气井测试,2018,27(02):34-40.[doi:10.19680/j.cnki.1004-4388.2018.02.006]
　HAN Xiong,PANG Dongxiao,WANG Feng.Construction of digital wellbore for well testing[J].Well Testing,2018,27(02):34-40.[doi:10.19680/j.cnki.1004-4388.2018.02.006]
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油气井试油作业数字井筒建设实践()
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《油气井测试》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2018年02期
页码:
34-40
栏目:
出版日期:
2018-04-25

文章信息/Info

Title:
Construction of digital wellbore for well testing
文章编号:
1004-4388(2018)02-0034-07
作者:
韩  雄;  庞东晓;  王  峰
中国石油集团川庆钻探工程有限公司钻采工程技术研究院 四川广汉 618300
Author(s):
HAN Xiong;  PANG Dongxiao;  WANG Feng
 Drilling and Production Engineering Research Institute, CNPC Chuanqing Drilling and Exploration Engineering Co., Ltd., Guanghan, Sichuan 618300, China
关键词:
试油' target="_blank" rel="external"> FONT-FAMILY: 宋体">试油; 无线传输; 井下压力; 井下温度; 井筒数字化
Keywords:
 ; well testing;  wireless transmission;  downhole pressure;  downhole temperature;  digital wellbore
分类号:
TE27
DOI:
10.19680/j.cnki.1004-4388.2018.02.006
文献标志码:
B
摘要:
 为提高复杂深井、页岩气井试油作业的安全性、精准性、可控性，将无线传输技术、传感器技术、专家系统等技术结合为一体，把井下压力计数据通过无线电磁波经过“井筒-地层”复合介质发送到地面接收天线，再经过专家系统解析获取井下数据，形成了井下与地面沟通的数字井筒信息平台。在试油期间，既可以实时获取井下温度、压力等数据及时掌握井下情况，又可以通过地面的下传信号实现对井底仪器的控制，达到动态调整作业程序、降低安全风险、提高试油数据录取质量的目的。该技术在四川地区10余口油气井的试油作业期间开展通井刮管、酸化、返排等作业工况试验，实现了井下与地面的数据信息互联：井筒深度适应性达到4500 m,可连续工作时间450 h以上，信号分辨率达10-5V，具有较好的可行性和可靠性。该技术进一步拓展，有望实现远程遥控井下测试作业，应用前景广阔。
Abstract:
 For purpose of safe, accurate and controllable well testing operations in complex deep wells and shale gas wells, a digital wellbore information platform was established to realize a downholesurface communication on the basis of wireless transmission, transducer and expert systems. Specifically, the downhole data are acquired through analysis via the expert system after the data are transmitted in form of wireless electricmagnetic waves from downhole pressure gauge to the receiving antenna on ground surface through “wellboreformation” composite media. With this digital wellbore for well testing, downhole temperature, pressure and other data can be captured in real time to understand downhole conditions in timely manner; meanwhile, downward signals from ground surface can be used to control donwhole devices, so as to adjust operational procedures dynamically, minimize operation risks and enhance the quality of well testing data acquired. The technique was applied for well testing of over 10 oil wells in Sichuan in the processes of drifting, scrapping, acidizing, flowback and other operations. It is found that the technique can effectively guarantee communication of downhole and surface data. The technique is adaptable to a wellbore depth up to 4500 m, and can work continuously for over 450 h with the signal resolution up to 10-5V. It is proved applicable and reliable. The technique can be further promoted to achieve remote control over downhole testing operations.

相似文献/References:

[1]邓勇,陆燕妮,马成,等.底水油藏水平井临界产量计算方法[J].油气井测试,2022,31(04):1.[doi:10.19680/j.cnki.1004-4388.2022.04.001]
　[J].Well Testing,2022,31(02):1.[doi:10.19680/j.cnki.1004-4388.2022.04.001]

更新日期/Last Update: 2018-06-21