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International Journal of Frontiers in Engineering Technology, 2022, 4(8); doi: 10.25236/IJFET.2022.040812.

Research on the Technology of Profile Control and Flooding in JY Oilfield to Stabilize Production


Qin Zuo1, Qinghao Bian2, Bo'ang Liu3, Minzhao Liu1

Corresponding Author:
Qin Zuo

1The Fifth Oil Production Plant of Petro China Changqing Oilfield Branch, Xi’an, China

2The Twelfth Oil Production Plant of China National Petroleum Corporation Changqing Branch, Xi’an,  China

3The Seventh Oil Production Plant of PetroChina Changqing Oilfield Company, Xi’an, China


JY oilfield is mainly an ultra-low permeability reservoir with low reservoir permeability. As the permeability decreases, the starting pressure gradient rises sharply, and the establishment of an effective displacement pressure system is slow. The main reservoir has entered the medium water-cut development stage. On the plane, water flooding intrudes along the dominant channels such as fractures and high-permeability strips, resulting in plane contradictions; on the profile, the production degree decreases, and the injection-production profile is unbalanced. In this paper, through the study of reservoir physical properties, water flooding and control and flooding mechanism and the implementation of fine profile control and flooding on a large scale, the well selection conditions of different reservoirs are obtained, and differentiated countermeasures are formulated. Four optimizations of injection mode to ensure continuous improvement of injection effect and economic benefits.


Ultra-low permeability reservoir, Dominant seepage channel, Profile control and flooding, Dual-control technology system

Cite This Paper

Qin Zuo, Qinghao Bian, Bo'ang Liu, Minzhao Liu. Research on the Technology of Profile Control and Flooding in JY Oilfield to Stabilize Production. International Journal of Frontiers in Engineering Technology (2022), Vol. 4, Issue 8: 79-88. https://doi.org/10.25236/IJFET.2022.040812.


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