Related references
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Engineering, Chemical
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Summary: This study proposed a capacity prediction method that considers time-dependent conductivity, and its accuracy was validated through laboratory tests and computational simulations. The results showed that fracturing fluid viscosity, sand concentration, and fracturing fluid retention time had different degrees of influence on the conductivity retention rate. The findings provide guidance for field production.
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Peng Zheng et al.
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Baocheng Wu et al.
Summary: This study investigates the effect of various factors on perforation erosion during limited-entry fracturing in horizontal wells by developing a field-scale flow system. The experimental results show that there are two stages of perforation erosion, and the shape of the perforation changes after erosion. The study also finds that high injection flow rates, large proppant size, using ceramic proppant, and low viscosity fluid lead to more severe perforation erosion.
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Engineering, Chemical
Hai Lin et al.
Summary: This study used the finite element method to simulate multiple fractures fracturing simultaneously and explained the effect of stress around the horizontal wellbore on new fractures during the refracturing of old wells using a temporary plugging technique. The results showed that reperforating fracturing can assist in increasing the effective stimulated reservoir volume and achieving high and stable production.
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Engineering, Chemical
Yushi Zou et al.
Summary: This study investigates the fracture propagation behavior during temporary plugging and diverting fracturing (TPDF) in coal formations. The experimental results show that TPDF can improve fracture complexity even under high stress difference. The use of appropriate size and concentration of temporary plugging agent (TPA) can effectively block primary fractures and promote the generation of new fractures.
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Xin Wang et al.
Summary: This study conducted a comprehensive reservoir quality evaluation and classification of unconventional oil and gas horizontal wells by establishing a subjective and objective coupled evaluation model and using clustering algorithms. The accuracy of the evaluation model was verified through practical application, providing technical support for determining the placement of fracturing perforation.
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Engineering, Chemical
Binglin Li et al.
Summary: This research considers the fluid flow, diffusion, adsorption, and desorption processes of shale oil. A spatial distribution diagram of the time scale is constructed and analyzed to understand the effect on the well rate. The results show that the production process is divided into five periods and the time delay effect is reflected in production fluctuations.
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Engineering, Chemical
Diguang Gong et al.
Summary: In this study, a numerical model was established to investigate the effect of radial-well-assisted deflagration fracturing on low-permeability hydrocarbon reservoirs. The results showed that the deflagration position, radial well azimuth, and horizontal principal stress difference had significant effects on the fracture area. Both shear fractures and tensile fractures were formed during the fracturing process.
Article
Engineering, Chemical
Tengfei Wang et al.
Summary: This study investigates the mechanism of multifracture growth and the design optimization of extremely limited entry (ELE) fracturing in multi-cluster horizontal wells. The results show that perforation friction in ELE fracturing can counteract the difference in fluid allocation caused by stress interference, resulting in even fluid allocation but significantly different fracture geometries. The in situ stress profile and 3D fracture stress interference determine the fracture geometry, and the in situ stress distribution within a perforated stage has a significant impact on the fluid allocation between different perforation clusters.
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Engineering, Chemical
Zeqi Zhao et al.
Summary: This study investigates the well test interpretation and dynamic characteristics of low permeability porous carbonate rocks in the Middle East using the point source function and dynamic inversion method. The results show that the permeability around the well and well trajectory are the main factors affecting the water injection development effect of horizontal wells. This research provides important reference for adjusting injection-production parameters and optimizing scheme deployment.
Article
Engineering, Chemical
Jing Yang et al.
Summary: An integrated reservoir model and differential stimulation mode were proposed to address the challenges in developing low-permeability reservoirs. Through laboratory experiments and numerical simulations, different stimulation modes were applied based on the type of reservoir area, maximizing economic benefits.
Article
Engineering, Chemical
Hao Zeng et al.
Summary: This study investigates the effects of various factors on hydraulic fracture propagation in shale oil reservoirs using numerical simulations and an elastic-plastic finite element model. The study examines the influence of rock properties, bedding structure, and injection parameters on hydraulic fracture height growth. The results provide insights into the width distribution, injection pressure, and failure mode of hydraulic fracturing in shale oil reservoirs.
Article
Engineering, Chemical
Ting Huang et al.
Summary: This study investigates the unique characteristics of oil flow in inter-salt shale oil reservoirs and analyzes the transient pressure behavior of multi-stage fractured horizontal wells in this type of reservoir by establishing a transient pressure behavior model. The results of the study are significant for understanding the flow behavior in inter-salt shale oil reservoirs.