Study on the limit of water flooding layer series well pattern adjustment in extra high water cut stage and its application

2015 ◽  
pp. 2109-2112
Author(s):  
Jingming Fan
Keyword(s):  
High Water ◽  
Water Flooding ◽  
Well Pattern ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut ◽  
Layer Series

Analysis all Kinds of Reservoir Water Degree Condition of East Xing Six District of Daqing Oilfield

2013 ◽  
Vol 868 ◽  
pp. 585-588
Author(s):  
Yi Kun Liu ◽  
Xue Ming Wang ◽  
Shi Yuan Shao ◽  
Ming Yang ◽  
Yong Ping Wang
Keyword(s):  
High Water ◽  
Oil Field ◽  
Water Flooding ◽  
Reservoir Water ◽  
Thickness Change ◽  
Degree Condition ◽  
Well Pattern ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut

East Xing Six District of Daqing oilfield development has 50 years of history, the block has entered high well density, high water cut stage. The apricot East Xing Six District demonstration zone development belongs to the continental sedimentary system, it has reservoir types and physical properties have large differences, It was long-term effected by injected water, after water flooding, water degree condition becomes very complex and unpredictable, so the washing condition analysis is an important guarantee for Daqing oilfield stable production. Using the oil field sealed coring well data, various types of reservoirs washing degree thickness change and growth are analyzed, We can know that with the further water flooding development and well pattern infilling, all kinds of oil reservoir production status; and then analyzes the potential distribution of the oilfields, and provides a basis for the development of the block and the adjustment of the next step of work, has an important guiding significance.

Mechanisms of water flooding characteristic curve upwarping at high water-cut stage and influencing factors

2019 ◽  
Vol 64 (26) ◽  
pp. 2751-2760 ◽  
Author(s):  
Jun Yao ◽  
Lei Zhang ◽  
Hai Sun ◽  
Tao Huang ◽  
Yongfei Yang ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Characteristic Curve ◽  
High Water ◽  
Water Flooding ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut

scholarly journals Techniques for improving the water-flooding of oil fields during the high water-cut stage

2019 ◽  
Vol 74 ◽  
pp. 69 ◽  
Author(s):  
Kuiqian Ma ◽  
Ao Li ◽  
Shuhao Guo ◽  
Jieqiong Pang ◽  
Yongchao Xue ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Water Injection ◽  
Reduction Rate ◽  
High Water ◽  
Water Flooding ◽  
Variable Intensity ◽  
Remaining Oil ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut

The multi-layer co-exploitation method is often used in offshore oilfields because of the large spacing between the injection and production wells. As oilfields gradually enter the high water-cut stage, the contradiction between the horizontal and vertical directions becomes more prominent, and the distribution of the remaining oil is more complex. Oilfields are facing unprecedented challenges in further enhancing oil recovery. Using oilfield A, which is in the high water-cut stage, as the research object, we compiled a detailed description of the remaining oil during the high water-cut stage using the information collected during the comprehensive adjustment and infilling of the oilfield. In addition various techniques for tapping the potential reservoir, stabilizing the oil, and controlling the water were investigated. A set of key techniques for the continuous improvement of the efficiency of water injection after comprehensive adjustment of high water-cut fields was generated. Based on the determined configuration of the offshore deltaic reservoir, a set of detailed descriptive methods and tapping technology for extracting the remaining oil in the offshore high water-cut oilfield after comprehensive adjustment was established. By considering the equilibrium displacement and using a new quantitative characterization method that includes displacement, a new technique for determining the quantity of water that needs to be injected into a stratified injection well during the high water-cut stage was established. Based on the principle of flow field intensity reconfiguration, a linear, variable-intensity, alternating injection and withdrawal technique was proposed. With the application of this series of techniques, the increase in the water content was controlled to within 1%, the natural reduction rate was controlled to within 9%, and the production increased by 1.060 × 107 m3.

The Research of Remaining Oil Distribution in High Water Cut Oilfield

2012 ◽  
Vol 591-593 ◽  
pp. 2555-2558
Author(s):  
Cheng Fu ◽  
Bin Huang
Keyword(s):  
High Water ◽  
Water Flooding ◽  
Production Plant ◽  
3D Geological Modeling ◽  
Oil Distribution ◽  
High Efficient ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut ◽  
Oilfield Development

The western South-eight block which is located in the comprehensive tap demonstration area of NO.2 oil production plant, has already gone through three years’ fine development. The production has been stable, the rising amplitude of comprehensive water cut has been small, and the natural decline rate has been controlled effectively. But with the deep development, this block has gone into the late ultra-high water cut stage. To maintain high efficient water flooding development is more and more difficult, therefore fine 3D geological modeling and reservoir numerical simulation work have been carried out. And some practical residual oil saturation diagrams have been put forward finally towards this block, which has provided a reliable basis for the next oilfield development.

The Sediment Group Evaluation Index System of Extra High Water-Cut Stage in Waterflooding Oilfield Reservoir

2012 ◽  
Vol 594-597 ◽  
pp. 2620-2626
Author(s):  
Li Jun Wang ◽  
Qiang Guo Duan
Keyword(s):  
Comprehensive Evaluation ◽  
High Water ◽  
Indicator System ◽  
Evaluation Index System ◽  
Layer System ◽  
Group Evaluation ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut ◽  
Layer Series

For reserviors which have multiple pay zones, various types and severe heterogeneity, it is China's successful experience of waterflood development to implement layered waterflooding, layered recovery, layered monitoring, and separated layer stimulation and adjustment. So it is worth paying much more attention on how to judge the rationality of layer series division, and only the layer system is reasonably divided can we obtain a higher recovery. In order to make a comprehensive evaluation of the combination of layer series, this paper has screened and analyzed the main indicators affected by the combination of layer series of development applying the principles of multiple correlation analysis, so that we obtain a comprehensive indicator system of layer series combination evaluation, and this system dose play an important role in reasonable layer series division.

Remaining Oil Development Study of a Nature Water Drive Reservoir in the High Water Cut Stage

2014 ◽  
Vol 522-524 ◽  
pp. 1346-1350
Author(s):  
Jian Huai Wang ◽  
Wei Nan Zhang
Keyword(s):  
Bottom Water ◽  
High Water ◽  
Distribution Law ◽  
Development Feature ◽  
Well Pattern ◽  
Barrier Region ◽  
Remaining Oil ◽  
High Water Cut Stage ◽  
High Water Cut ◽  
Water Cut

Taking M reservoir of D field as an example, analyzing the development feature of a thick sandstone reservoir in the high water cut stage which is driven by natural water, and studying the distribution law of remaining oil for this reservoir through 3 aspects: sweeping of the edge-bottom water, completeness of the well pattern and barrier of the partial interbed, and expounding the development method and effect of this thick sand reservoir in the high water cut stage through exploiting 3 kinds of remaining oil rich regions as fellows: the region which is not swept by the edge-bottom water; incomplete region of the well pattern and barrier region of the partial interbed.

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