Xiuchao Jiang

A Framework for the Production Performance and Thermal Efficiency of Steam Injection Process in Layered Heavy Oil Reservoirs

Xiaohu Dong, Xiuchao Jiang, Ziyang Guo, Huiqing Liu

Abstract Thermal efficiency is an important evaluation parameter for the recovery performance of steam injection operation in heavy oil reservoirs. Especially, for the layered heavy oil reservoirs (LHOR), considering the simultaneous calculations on steam injection profile and heat loss rate, an accurate …

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A Steam Injection Rate Allocation Method Considering the Dynamic Heterogeneity in Stratified Heavy Oil Reservoirs

Xiuchao Jiang, Xiaohu Dong, Hao Zhang, Huiqing Liu et autres

Abstract The improvement of production profiles in stratified heavy oil reservoirs holds paramount significance within the domain of improved oil recovery. The separate-layer steam injection technique is an effective approach to minimize the recovery difference among layers. However, the accuracy of steam …

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Performance of steam injection process in layered heavy oil reservoirs: An experimental and numerical investigation

Xiuchao Jiang, Xiaohu Dong, Hao Zhang, Huiqing Liu

Layered heavy oil reservoirs are widely distributed hydrocarbon resources and play a crucial role in fulfilling the global increasing demand for energy. Due to the existence of interlayer heterogeneity, however, the traditional commingled steam injection process has been confronted with the challenges …

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Mathematical modeling for the production performance of cyclic multi-thermal fluid stimulation process in layered heavy oil reservoirs

Xiuchao Jiang, Xiaohu Dong, Wenjing Xu, Huiqing Liu et autres

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Experimental and Modeling Study of CO2 EOR and CO2 Storage in Heavy Oil Reservoirs

Wuchao Wang, Huiqing Liu, Xiaohu Dong, Zhangxin Chen et autres

Abstract This study focuses on unveiling the interaction between injected CO2 and heavy oil through adequate phase behavior analyses. Moreover, the potential of CO2 EOR and CO2 storage were evaluated through injection scheme optimization and sensitivity analysis. Experimentally, the PVT experiments including …

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Discussion on the sweep efficiency of hybrid steam−chemical process in heavy oil reservoirs: An experimental study

Xiaohu Dong, Xiuchao Jiang, Wei Zheng, Huiqing Liu et autres

Non-condensable gas (NCG), foam and surfactant are the three commonly-used additives in hybrid steam−chemical processes for heavy oil reservoirs. Their application can effectively control the steam injection profile and increase the sweep efficiency. In this paper, the methods of microscale visualized experiment …

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Experimental Investigation on the Pore Structure Evolution of Coal in Underground Coal Gasification Process

Bin Zhao, Xiaohu Dong, Yanpeng Chen, Shanshan Chen et autres

Underground coal gasification (UCG) has been shown to be a promising method for deep coal resources. A series of complicated chemical reactions can induce a considerable change in the pore structure of coal and thus promote the UCG process in turn. Currently, …

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A Production Performance Model of the Cyclic Steam Stimulation Process in Multilayer Heavy Oil Reservoirs

Tingen Fan, Wenjiang Xu, Wei Zheng, Weidong Jiang et autres

Cyclic steam stimulation (CSS) is a typical enhanced oil recovery method for heavy oil reservoirs. In this paper, a new model for the productivity of a CSS well in multilayer heavy oil reservoirs is proposed. First, for the steam volume of each …

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