effects of some thermo-physical parameters on free convective heat and mass transfer over a vertical stretching surface at lowest level of heat energy in the presence of suction is investigated. the viscosity of the fluid is assumed to vary as a linear function of temperature and thermal conductivity is assumed constant. a similarity transformation is applied to reduce the governing equations i...

Staged multi-cluster fracturing of horizontal wells is one the most important tools to achieve efficient development unconventional oil and gas reservoirs. The multi-stage technique forms complex fractures with multiple clusters branches in formation, causing competing diversions leading more proppant transport patterns, placement method determines flow conductivity fractures, so it necessary i...

Resources Safety and Health Queensland (RSHQ) is the independent regulator for safety health in Queensland’s resources sector. The Petroleum Gas Inspectorate (the Inspectorate) administers regulation petroleum gas industry. RSHQ uses a risk-based data-driven approach to pursue its vision of zero serious harm resource sector workers. In Queensland, on average, there are 200 fraccing operations c...

This study evaluates and quantifies fracture roughness effects on proppant particle settling in fractures utilizing coupled, resolved computational fluid dynamics (i.e., simulation of carrier behavior) the discrete element method behavior). work focuses specifically “slickwater” based slurries. Rough geometries are generated using a spectral-based algorithm with surficial varied by adjusting fr...

This paper describes a new modeling framework for microscopic to reservoir-scale simulations of hydraulic fracturing and production. The approach builds upon fusion two existing high-performance simulators behavior: the GEOS code hydromechanical evolution during stimulation TOUGH+ multi-phase flow are informed by experimental studies at laboratory scale incorporate important micro-scale mechani...

Abstract Multistage fracturing technology is the primary means of reservoir stimulation in shale gas wells. However, productivity contribution each stage varies greatly. It essential to evaluate effect order make an optimized treatment design. In this study, we adopted integrated workflow assess main control factors geological and engineering parameters a novel approach was proposed for post-fr...