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Article
A New Numerical Simulation Method for Multi-stage in-Fracture Temporary Plugging and Diverting Fracturing: Based on the Modified Cohesive Zone Model
The multi-stages in-fracture temporary plugging and diverting fracturing technology (ITPDF) is significant for the stimulation of unconventional oil and gas reservoirs. However, the propagation pattern of hydr...
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Article
Size effect of nanomagnetite on magnetoresistance of core-shell structured polyaniline nanocomposites
In this work, magnetoresistive nanomagnetite@polyaniline (Fe3O4@PANI) composites with a core-shell structure were prepared by in situ polymerization method with KH-550 as coupling agent. All the samples demonstra...
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Chapter and Conference Paper
Optimization of Volumetric Fracturing Parameters for Deep Horizontal Wells Based on Integrated Geological-Engineering Workflow in Tuha Oilfield
The volume fracturing technology of horizontal well is one of the key technical approaches to develop deep tight sandstone effectively. Inappropriate fracturing parameters will lead to insufficient reservoir s...
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Chapter and Conference Paper
Effect of Natural Fracture Clusters on Hydraulic Fracture Propagation in Fractured Reservoirs: A Numerical Simulation Study
The presence of a large number of natural fracture clusters in fractured reservoirs has a significant impact on fracture propagation during hydraulic fracturing. A two-dimensional fluid–solid coupled hydraulic...
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Chapter and Conference Paper
An Efficient Retarded Acid System for Deep and High Temperature Carbonate Reservoirs
Deep carbonate reservoirs have larger reserves, and due to their deeper burial, the average temperature reaches about 140 ~ 180℃. In the process of acid fracturing of deep carbonate reservoirs, the performance...
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Article
Spectro-spatial Analysis of Nonlinear Wave Propagation Behaviors in Damped Acoustic Metamaterial Systems
Acoustic metamaterials exhibit many novel wave propagation behaviors that can be designed to control and guide wave propagation in a variety of media. Due to the existence of dam**, the attenuation effect of...
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Article
Quantification of rock heterogeneity and application in predicting rock mechanical properties
Heterogeneity is an essential feature of rock, while most rock mechanics models only adopt conventional rock physical properties and ignore the influence of heterogeneity. Quantifying rock heterogeneity is of ...
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Article
Optimization of Rock Mechanical Properties Prediction Model Based on Block Database
Rock mechanical properties are complex but essential for reservoir stimulation. Both experimental and empirical equation method have inevitable defects, and artificial neural network model (ANN) shows great po...
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Article
A New Multi-Cluster Fracturing Simulation Model Coupled with Perforation Erosion: Based on the Continuous–Discontinuous Method
Promoting uniform propagation of multiple fractures in horizontal wells is significant to increase the stimulated volume of unconventional reservoirs. However, the stress interference between multiple fracture...
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Chapter and Conference Paper
Study on Authigenic Acid Slick Water System to Relieve Reservoir Damage
Particle migration and clay expansion during oil and gas field fracturing have greatly affected the effect of fracturing. It is of great significance to develop a fracturing fluid system that can inhibit and r...
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Article
Experimental Investigation of Thermal Effect on Fracability Index of Geothermal Reservoirs
The thermal effect is not considered in the current fracability index model. In this paper, we investigated experimentally the formation capacity of fracture networks in hot dry rocks at different temperatures...
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Article
Open AccessA New Intermittent Pum** Design for Fluid Shortage Wells
Low oil price requires oil companies to reduce costs and increase benefits. The wells with deficient fluid supplies approximately account for 20–30% of all producing wells, and this situation is even worse in ...
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Chapter and Conference Paper
Experimental and Numerical Study on Drag Reduction Performance of Slickwater in Turbulent Pipeflow
This paper aims to build a simplified friction prediction modeling of polymer drag reduction in pipeflows on the basis of the Giesekus constitutive equation, which was validated by the loop experiment and fiel...
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Article
Research on sensitivity damage of naturally fractured carbonate reservoirs in Ordos Basin
Understanding mechanisms and performance of formation sensitivity damage in naturally fractured carbonate reservoirs is crucial for avoiding productivity attenuation at any development stage. In this paper, ba...
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Chapter and Conference Paper
ESRV and Production Optimization for the Naturally Fractured Keshen Tight Gas Reservoir
The economic gas production in Keshen deep reservoir (7000–8038 m), located in the Tarim basin, as one of the largest gas resources in the north-west China, depends on the optimization of Effective Stimulated ...
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Article
Wormhole Propagation Behavior Under Reservoir Condition in Carbonate Acidizing
In carbonate reservoirs, acid is injected into the formation under breakdown pressure to react with the rock to remove the contaminations caused by drilling and production, which is called carbonate acidizing ...
