Results 21 to 30 of about 162 (141)

A new fracturing technology of intensive stage + high-intensity proppant injection for shale gas reservoirs

open access: yesNatural Gas Industry B, 2020
So far, large-scale development of shale gas wells above 3500 m in the Changning Block of the Sichuan Basin has been realized by means of the large-scale hydraulic fracturing technology.
Youcheng Zheng   +3 more
doaj   +1 more source

Comparison of mechanical characteristics of different types of shales in the Ordos Basin

open access: yesFrontiers in Earth Science, 2023
Shale gas is a very important unconventional energy. The mechanical properties of the three types of shale (laminated shale, sandwich shale and foliated shale) are different, and the difference in fracturing effectiveness is very significant.
Liangbin Dou   +14 more
doaj   +1 more source

Table1_Experimental Study on Fracturing Fracture Deformation Mechanism of Shale Reservoir.XLSX

open access: yes, 2022
After large-scale sand fracturing of horizontal wells in shale gas reservoir, fracturing fractures will deform in the production process. However, fracture deformation will lead to the decrease in fracture conductivity and then cause the decrease of gas ...
Zuping Xiang (11894237)   +8 more
core   +1 more source

Studies of Fracture Damage Caused by Proppant Embedment Phenomenon in Shale Rock [PDF]

open access: yesApplied Sciences, 2019
This paper concerns the effect of proppant embedment related with hydraulic fracturing treatment. This phenomenon occurs if the strength of the reservoir rock is lower than proppant grains. The aim of the research is laboratory determining the loss of width of the proppant pack built of light ceramic grains.
Mateusz Masłowski   +4 more
openaire   +2 more sources

Image-based Stokes flow modeling in bulk proppant packs and propped fractures under high loading stresses

open access: yes, 2015
Rock fracturing, followed by proppant injection, has been used for years to improve oil and gas production rates in low permeability reservoirs and is now a routine part of producing from low-permeability resources such as a shales and tight sands. While
Yijie Shen   +19 more
core   +1 more source

Proppant embedment in coal and shale: Impacts of stress hardening and sorption

open access: yesInternational Journal of Coal Geology, 2020
Abstract During methane production in CBM reservoirs, the influence of proppant embedment and permeability damage cannot be neglected – especially where the wall-rock is soft. Effective stresses are elevated during methane recovery, increasing both normal loading stress and confinement and simultaneously overprinting sorption-induced volumetric ...
Sheng Zhi, Derek Elsworth
openaire   +2 more sources

Laboratory imaging of the size of the propagation of proppant grains into the fracture wall

open access: yes, 2019
Autor przedstawił laboratoryjną symulację oraz obrazowanie wielkości zjawiska wgniatania ziaren materiału podsadzkowego w ścianę szczeliny (ang. embedment).
Masłowski, Mateusz
core   +1 more source

Effects of stress-dependent hydraulic properties of proppant packs on the productivity indices of the hydraulically fractured gas reservoirs

open access: yes, 2016
Hydraulic fracturing stimulates wells and has enabled exploitation of the vast unconventional hydrocarbon resources in the US and globally. Proppants, which are granular materials that prevent fractures from closing, must provide high fracture ...
Tyagi, Mayank   +2 more
core   +1 more source

A Coupled Extended Finite Element–Cohesive Zone Model for Hydraulic Fracture Propagation Under Poroelastic Effects Across Different Propagation Regimes

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Numerical simulation of hydraulic fracturing remains challenging due to the strong coupling between geomechanics and fluid flow when modelling multiple physical mechanisms of rock deformation, fracture evolution and fluid leak‐off. This study develops a coupled hydraulic fracture propagation framework that combines the extended finite element ...
Ran Tao, Juliana Y. Leung, Samer Adeeb
wiley   +1 more source

Nordgren PINNs to VQE: Advancing Hydraulic Fracturing Simulations in Shale Reservoirs

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study advances hydraulic fracturing simulations in shale reservoirs using two computational paradigms, Physics‐Informed Neural Networks (PINNs) and the Variational Quantum Eigensolver (VQE). PINNs were employed to solve Nordgren's equation, which governs fracture width evolution, by embedding physical laws into the neural network ...
Dennis Delali Kwesi Wayo   +7 more
wiley   +1 more source

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