[1]隋秀香,梁羽丰,李轶明,等.基于多普勒测量技术的深水隔水管气侵早期监测研究[J].石油钻探技术,2014,42(05):90-94.[doi:10.11911/syztjs.201405016]
 Sui Xiuxiang,Liang Yufeng,Li Yiming,et al.Early Monitoring of the Gas-Cut in Deepwater Riser Based on Doppler Measuring System[J].Petroleum Drilling Techniques,2014,42(05):90-94.[doi:10.11911/syztjs.201405016]
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《石油钻探技术》[ISSN:1001-0890/CN:11-1763/TE]

卷:
42卷
期数:
2014年05期
页码:
90-94
栏目:
钻井完井
出版日期:
2014-09-25

文章信息/Info

Title:
Early Monitoring of the Gas-Cut in Deepwater Riser Based on Doppler Measuring System
作者:
隋秀香1 梁羽丰1 李轶明1 尹邦堂2 李相方1
1. 中国石油大学(北京)石油工程学院, 北京 102249;
2. 中国石油大学(华东)石油工程学院, 山东青岛 266555
Author(s):
Sui Xiuxiang1 Liang Yufeng1 Li Yiming1 Yin Bangtang2 Li Xiangfang1
1. College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing, 102249, China;
2. School of Petroleum Engineering, China University of Petroleum(Huadong), Qingdao, Shandong, 266555, China
关键词:
深水钻井隔水管气侵监测多普勒
Keywords:
deepwater drillingrisergas cutmonitoringDoppler
分类号:
TE28+1
DOI:
10.11911/syztjs.201405016
摘要:
为减少深水钻井中的井喷及井喷爆炸事故,及时发现溢流,通过分析深水钻井中井筒侵入气的分布规律,利用非接触式超声波多普勒测量系统对深水隔水管气侵进行了研究。在连续相为水基钻井液的情况下,通过改变钻井液流速和含气率,分析了超声波多普勒信号的变化特征。通过处理实时采集的不同含气率下的测量信号电压并进行平均,得到了超声波多普勒测量信号随含气率的变化曲线,测量含量随含气率增大呈上升趋势:在含气率小于1%时,超声波多普勒测量信号概率分布和不含气情况下概率分布的中心线之间的信号差小于55 mV;在含气率达到3%后,与不含气情况下概率分布中心线间的差变为200 mV,且随着含气率上升有进一步增大的趋势。试验研究表明,用非接触超声波多普勒测量方式研究深水隔水管中的含气情况,能及时发现地层气体侵入隔水管,为井控赢得时间。
Abstract:
In order to decrease the possibility of blowouts and explosions in deepwater drilling and for early detection of spills,the early monitoring of gas cut to deepwater riser was investigated.Based on the discipline of wellbore gas cut distribution in the deepwater drilling,the Untouched Ultrasonic Doppler Measuring System(UUDMS)was applied in a deepwater environment to detect the variation of gas cut in deepwater riser.In case that the continuous phase consisted in a water-based drilling fluid,and by changing the flow velocity of drilling fluid and gas void fraction,it was possible to analyze the changing characteristics of UUDMS signal.By averaging the voltages of signals under different void fraction conditions,the relationship between the UUDMS signals and gas void fraction was obtained.Results showed that the average voltage of the signals from UUDMS increased with increasing gas void fraction.When the void fraction was lower than 1%,the distance between the mid-value of the probability distribution of signals with gas cut and that without gas cut was 55 mV.When the void fraction was larger than 3%,the distance was 200 mV;and the distance increased with increasing void fraction.Results from experiments showed that by using the Untouched Ultrasonic Doppler Measuring System,gas cut to deepwater riser could be detected in time,which could save a significant amount of time in well control.

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备注/Memo

备注/Memo:
收稿日期:2013-12-17;改回日期:2014-8-3。
基金项目:国家科技重大专项子课题"荔湾3-1及周边深水油气田地质灾害风险评价及开发工程设计"(编号:2011ZX05056-001-04)部分研究成果。
作者简介:隋秀香(1966—),女,山东莱阳人,1989年毕业于石油大学(华东)实验技术机电专业,高级实验师,主要从事钻井井控和油气井测量方面的研究。
联系方式:(010)89739133,suixiuxiang@cup.edu.cn。
更新日期/Last Update: 1900-01-01