Structure and fracture-cavity identification of epimetamorphic volcanic-sedimentary rock basement reservoir: a case study from central Hailar Basin, China

Li, Juan; Chen, Guangpo; Zhang, Bin; Liang, Hong; Han, Qian‐Feng

doi:10.1007/s12517-018-4221-z

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…The main reservoir spaces of typical fractured-cavity reservoirs consist of karst caves, high-angle fracture networks, and many dissolved pores [1,2]. The reservoir heterogeneity is extremely important, mainly because the distribution is random, the internal structure is very uneven, the spatial configuration pattern of caverns and cracks is complex, and oil-water relationship and flow dynamics are complicated [3,4]. In the early development stage of a fractured-cavity carbonate reservoir, oil production typically depends on natural or bottom water energy.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Prediction of Enhanced Oil Recovery by N2 huff-n-puff in Fractured-Cavity Reservoir Using an FNN-FDS Hybrid Model

et al. 2021

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N2 huff-n-puff has proven to be a promising technique to further improve oil recovery in naturally fractured-cavity carbonate reservoirs. The effect of enhanced oil recovery (EOR) by N2 huff-n-puff is significantly affected by various dynamic and static factors such as type of reservoir space, reservoir connectivity, water influx, operational parameters, and so on, typically leading to a significant increase in oil production. To reduce the prediction uncertainty of EOR performance by N2 huff-n-puff, an adaptive hybrid model was proposed based on the fundamental principles of fuzzy neural network (FNN) and fractional differential simulation (FDS); a detailed prediction process of the hybrid model was also illustrated. The accuracy of the proposed FNN-FDS hybrid model was validated using production history of N2 huff-n-puff in a typical fractured-cavity carbonate reservoir. The proposed model was also employed to predict the EOR performance by N2 huff-n-puff in a naturally fractured-cavity carbonate reservoir. The methodology can serve as an effective tool to optimize developmental design schemes when using N2 huff-n-puff to tap more remaining oil in similar types of carbonate reservoirs.

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Section: Introductionmentioning

confidence: 99%

Adaptive Prediction of Enhanced Oil Recovery by N2 huff-n-puff in Fractured-Cavity Reservoir Using an FNN-FDS Hybrid Model

et al. 2021

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Distribution features and main controlling factors of volcanic buried hill reservoirs in carboniferous basement of Junggar Basin

Zhou

Wang

2020

Arab J Geosci

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Characteristics and major controlling factors of fracturing in an Archean buried-hill, Bozhong Sag, Bohai Bay Basin, China

Dai

Tang

Yan

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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Archaeozoic fractured buried-hill reservoirs have been found in the Bozhong Sag, Bohai Bay Basin, but the origin, stage and distribution of fractures are still unclear. The B-block is used as an example to explore the genesis and main controlling factors on fracture formation. Core and image log data, combined with regional geology, were used to comprehensively analyze the characteristics of fractures. High-angle shear fractures and low-to moderate-angle tensile fractures were developed in the area. Fracture development was mainly controlled by lithology. The lithologies in the study area from most fracture prone to least are monzonite, granodiorite, cataclastic rock and gneiss. This study has provided a basis for the prediction of potential reservoir areas in paleo-buried hills.

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Structure and fracture-cavity identification of epimetamorphic volcanic-sedimentary rock basement reservoir: a case study from central Hailar Basin, China

Cited by 4 publications

References 16 publications

Adaptive Prediction of Enhanced Oil Recovery by N2 huff-n-puff in Fractured-Cavity Reservoir Using an FNN-FDS Hybrid Model

Adaptive Prediction of Enhanced Oil Recovery by N2 huff-n-puff in Fractured-Cavity Reservoir Using an FNN-FDS Hybrid Model

Distribution features and main controlling factors of volcanic buried hill reservoirs in carboniferous basement of Junggar Basin

Characteristics and major controlling factors of fracturing in an Archean buried-hill, Bozhong Sag, Bohai Bay Basin, China

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