Results 51 to 60 of about 1,127 (185)
Based on the theory of porous media elasticity and the mechanisms of hydraulic‐mechanical coupling, a fully coupled mathematical model for porous media deformation and fluid flow was established, incorporating a square inverted nine‐spot well pattern with artificial fractures. The finite element method was employed for numerical solution, and the model′
Changkun Cheng +8 more
wiley +1 more source
Hydraulic fracturing is a conventional practice for production enhancement in low production and damaged wells. Proppant flowback has been a concern in hydraulic fracturing since proppant began to be used as fracture supporting material.
A VARELA, N SAAVEDRA
doaj
This study presents a leakage‐aware machine learning framework for predicting minimum horizontal stress (σhmin) using structured geomechanical and fracture‐related parameters. A dataset comprising 21,499 records from approximately 200 horizontal wells in the Marcellus Shale was preprocessed using a strictly leakage‐controlled pipeline, including ...
Ebenezer Leke Odekanle +6 more
wiley +1 more source
Water hydraulic fracturing involves pumping low viscosity fluid and proppant mixture into the artificial fracture under a high pumping rate. In that high Reynolds number conditions (HRNCs, Re > 2000), the turbulence effect is one of the key factors ...
Tao Zhang +3 more
doaj +1 more source
Production forecasting for oil and gas wells is a decisive element of field‐development planning because it directly guides recovery strategy design, production optimisation and risk management. Conventional methods, including empirical decline‐curve analysis (DCA) and full‐physics numerical simulation, are limited either by their inability to capture ...
Shitan Yin +4 more
wiley +1 more source
Study on Proppant Transport among the Perforations within a Cluster and Accumulation in Inclined Wellbores Considering Turbulence Effect [PDF]
During hydraulic fracturing, the uniform distribution of proppant among perforations is crucial for enhancing reservoir permeability. However, problems such as uneven proppant distribution between perforations and accumulation-induced blockage often ...
Fujia Zhang +3 more
doaj +1 more source
An Approach to Sustainable Hydrogen Generation From Stimulated Iron‐Rich Ultramafic Rock
Abstract Iron‐rich rocks undergoing oxidation in the presence of water are promising sources of geologic hydrogen (H2). Yet, such reactions are often considered self‐limiting due to passivation and reduced permeability if volume expansion occurs. This study investigates hydrogen generation during a flow‐through experiment on fractured iron‐rich cores ...
Henry Galvis Silva +4 more
wiley +1 more source
The stability and mobility of proppant packs in hydraulic fractures during hydrocarbon production are numerically investigated by the lattice Boltzmann-discrete element coupling method (LB-DEM). This study starts with a preliminary proppant settling test,
Duo Wang +4 more
doaj +1 more source
UFM‐Based Simulation of Competitive Multi‐Fracture Propagation in Horizontal Wells
Simulation schematic of Competitive Multi‐Fracture Propagation in Horizontal Wells. ABSTRACT Multi‐stage hydraulic fracturing in horizontal wells is vital for stimulating unconventional reservoirs, yet uneven fracture propagation often restricts the effective communication volume of the reservoir.
Xiaojia Xue +7 more
wiley +1 more source
Experimental Study on Settlement and Migration Law of Proppant in Annulus near Packer
To address the packer releasing failure problem during horizontal well fracturing using packer deployed by coiled tubing, a dual perforation tunnel horizontal well jetting fracturing simulation device was designed, and was used to conduct experimental ...
Tian Shouceng, Sheng Mao, Liu Xixiong
doaj

