Research and Application of Bridge Eccentric Zonal Water Injection Technology with Continuous Adjustment and Surface Monitoring

2020 ◽  
Author(s):  
Yang Liu ◽  
Zuchang Song ◽  
Xudong Wang ◽  
Xubo Gai ◽  
Xueming Lai ◽  
...  
Keyword(s):  
Water Injection ◽  
Surface Monitoring ◽  
Injection Technology

Identification-Free Adaptive Separate Layer Water Injection Control Based on Expert Amendment

2010 ◽  
Vol 44-47 ◽  
pp. 1470-1475
Author(s):  
Feng Shan Wang ◽  
De Li Jia ◽  
Shu Jin Zhang ◽  
Chong Jiang Liu ◽  
De Kui Xu
Keyword(s):  
Adaptive Control ◽  
Control Strategy ◽  
Water Injection ◽  
Strong Nonlinearity ◽  
Separate Layer ◽  
Injection Control ◽  
System Output ◽  
Adaptive Control Strategy ◽  
Injection Effect ◽  
Injection Technology

An identification-free adaptive control strategy based on expert amendment is proposed in this paper to solve the problem that it is difficult to establish mathematical model of water injection regulating process due to large time delay, strong nonlinearity and time variation in the flow control of separate layer water injection technology. In this control strategy, according to the past and current process information of water injection, the system output and trend can be estimated based on expert rules to amend the output of the identification-free adaptive control. The simulation result shows that this control strategy has perfect control performance and strong adaptability and it provides a feasible means for improving water injection effect.

Research and practice on fluctuation water injection technology at low permeability coal seam

2012 ◽  
Vol 50 (4) ◽  
pp. 851-856 ◽  
Author(s):  
Wei-min Cheng ◽  
Wen Nie ◽  
Gang Zhou ◽  
Yanbin Yu ◽  
Youying Ma ◽  
...  
Keyword(s):  
Coal Seam ◽  
Water Injection ◽  
Low Permeability ◽  
Research And Practice ◽  
Injection Technology

scholarly journals Connotation, application and prospect of the fourth-generation separated layer water injection technology

2017 ◽  
Vol 44 (4) ◽  
pp. 644-651 ◽  
Author(s):  
He LIU ◽  
Xiaohan PEI ◽  
Deli JIA ◽  
Fuchao SUN ◽  
Tong GUO
Keyword(s):  
Water Injection ◽  
Fourth Generation ◽  
Injection Technology

Flow Control Strategy for Novel Layered Synchronous Water Injection Technology in Oilfield

2012 ◽  
Vol 5 (2) ◽  
pp. 696-700
Author(s):  
Jia Deli ◽  
Wang Fengshan ◽  
Zhao Mingxin ◽  
Xu Dekui ◽  
Ma Qiang
Keyword(s):  
Flow Control ◽  
Control Strategy ◽  
Water Injection ◽  
Injection Technology

A Novel Multi-Layer Intelligent Test and Adjustment Technology for Water Injection Well

2012 ◽  
Vol 424-425 ◽  
pp. 732-736 ◽  
Author(s):  
De Li Jia ◽  
Feng Shan Wang ◽  
Shu Jin Zhang
Keyword(s):  
Water Injection ◽  
Dynamic Test ◽  
High Water ◽  
Adjustment Process ◽  
Flow Adjustment ◽  
High Water Cut ◽  
Water Cut ◽  
Injection Effect ◽  
Injection Technology ◽  
Clock Calibration

The layered recovery technology has been applied to the heterogeneous multi-layer standstone oilfields for many years. However, as these standstone oilfields have been entering into the ultra-high water cut period, the conventional layered water injection technology has too long test and adjustment period and heavy workload and cannot determine the reservoir condition. To solve this problem, this paper proposes and develops an intelligent multi-layer water injection technology suitable for the ultra-high water cut period based on the synchronous dynamic test and adjustment idea. The whole flow adjustment process has no any intervention and the synchronous dynamic flow adjustment of each layer finishes by the digital clock calibration thereby avoiding interlayer interference. This technology also can obtain data by the redisplay of computer. The experimental results show that this technology not only improves water injection effect and reduces the field workload, but also provides the basis of data analysis for implementation and adjustment of meticulous oil development plan

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