Results 11 to 20 of about 73,247 (279)

Shut-in time optimization after fracturing in shale oil reservoirs

open access: diamondPetroleum Exploration and Development, 2022
A multi-process (fracturing, shut-in and production) multi-phase flow model was derived considering the osmotic pressure, membrane effect, elastic energy and capillary force, to determine the optimal shut-in time after multi-cluster staged hydraulic ...
Qiang WANG   +4 more
doaj   +5 more sources

Numerical Simulation Study on Optimal Shut-In Time in Jimsar Shale Oil Reservoir [PDF]

open access: goldFrontiers in Energy Research, 2022
The volume fracturing technology along with horizontal well is the main technology to obtain commercial oil flow in shale reservoirs because of the low porosity and low permeability.
Xi Chen   +7 more
doaj   +5 more sources

Hydrodynamic Equilibrium Simulation and Shut-in Time Optimization for Hydraulically Fractured Shale Gas Wells [PDF]

open access: goldEnergies, 2020
Post-fracturing well shut-in is traditionally due to the elastic closure of hydraulic fractures and proppant compaction. However, for shale gas wells, the extension of shut-in time may improve the post-fracturing gas production due to formation energy ...
Fei Wang, Qiaoyun Chen, Yingqi Ruan
doaj   +4 more sources

Numerical Study on the Effects of Imbibition on Gas Production and Shut-In Time Optimization in Woodford Shale Formation [PDF]

open access: goldEnergies, 2020
In shale gas formations, imbibition is significant since the tight pore structure causes a strong capillary suction pressure. After hydraulic fracturing, imbibition during the period of shut-in affects the water recovery of flowback.
Zhou Zhou   +3 more
doaj   +4 more sources

Optimization of shut-in time based on saturation rebalancing in volume-fractured tight oil reservoirs

open access: diamondPetroleum Exploration and Development, 2023
Based on imbibition replacement of shut-in well in tight oil reservoirs, this paper expounds the principle of saturation rebalancing during the shut-in process after fracturing, establishes an optimization method for shut-in time after horizontal well ...
Jianguo XU, Rongjun LIU, Hongxia LIU
doaj   +4 more sources

Confluence and cold shut computation based on time field in casting simulation [PDF]

open access: goldChina Foundry, 2021
Numerical simulation technology has been widely used in the foundry industry to analyze and improve casting processes. During the casting filling process, many filling-related defects form easily at the confluences of liquid metal streams.
Yong-shuai Feng   +2 more
doaj   +4 more sources

Optimization of Shut-In Time for Hydraulic Fracturing-Assisted Oil Displacement in Offshore Low-Permeability Reservoirs [PDF]

open access: goldACS Omega
Baojiang Duan   +9 more
doaj   +3 more sources

Early-Time Shut-In for Plane-Strain Hydraulic Fractures [PDF]

open access: hybridRock Mechanics and Rock Engineering, 2023
AbstractOne investigates the post-shut-in growth of a plane-strain hydraulic fracture in an impermeable medium while accounting for the possible presence of a fluid lag. After the stop of fluid injection, the fracture may present three distinct propagation patterns: an immediate arrest, a temporary arrest with delayed propagation, and a continuous ...
Dong Liu
openalex   +3 more sources

Undergraduate mental health nursing education: Time to shut up? [PDF]

open access: bronzeInternational Journal of Mental Health Nursing, 2011
Undergraduate mental health nursing education has dominated the landscape, not only in Australia, but internationally, for decades now. It might prompt thoughts that perhaps we should move on. I disagree. The June editorial by Dianne Wynaden (2011) has got me thinking even more, hence this editorial is about education.
Brenda Happell
openalex   +4 more sources

Is it time to get some SHUT-i? [PDF]

open access: hybridAnnals of Translational Medicine, 2017
There are four central things that are well known about insomnia which together highlight it as a serious public health concern: (I) it is a significant issue - over a third of the population will experience an acute episode (less than three months in duration) of insomnia every year (1) and between 10–20% of the population will report chronic insomnia
Jason Ellis   +3 more
openalex   +3 more sources

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