Results 11 to 20 of about 288,333 (267)

Well-Posedness of a Class of Radial Inhomogeneous Hartree Equations

open access: yesMathematics, 2023
The present paper investigates the following inhomogeneous generalized Hartree equation iu˙+Δu=±|u|p−2|x|b(Iα∗|u|p|·|b)u, where the wave function is u:=u(t,x):R×RN→C, with N≥2.
Saleh Almuthaybiri   +2 more
doaj   +2 more sources

Numerical Simulation on Radial Well Deflagration Fracturing Based on Phase Field Method

open access: yesEnergies, 2023
A radial well has a unique wellbore configuration. Fracture propagation in radial well deflagration fracturing is studied rarely. The mechanism of interaction between deflagration fractures, natural fractures, and micro-fractures is still unknown.
Diguang Gong   +5 more
doaj   +1 more source

Numerical simulation of three-dimensional fracturing fracture propagation in radial wells

open access: yesPetroleum Exploration and Development, 2023
A fracture propagation model of radial well fracturing is established based on the finite element-meshless method. The model considers the coupling effect of fracturing fluid flow and rock matrix deformation.
Tianyu WANG   +6 more
doaj   +1 more source

Well testing of radial jet drilling wells in geothermal reservoirs [PDF]

open access: yesComputational Geosciences, 2022
AbstractRadial Jet Drilling (RJD) is a stimulation technique to increase a well’s performance through creation of multiple laterals of up to 100 m long. The technique has been used in the petroleum industry for several years and recently also for geothermal reservoirs. Interpretation of well tests of a well with multiple laterals may become problematic
Paul Egberts, Elisabeth Peters
openaire   +1 more source

A Solution to Sand Production from Natural Gas Hydrate Deposits with Radial Wells: Combined Gravel Packing and Sand Screen

open access: yesJournal of Marine Science and Engineering, 2022
Sand production is one of the main problems restricting the safe, efficient and sustainable exploitation of marine natural gas hydrate. To explore the sand-control effects of gravel packing, experiments that simulate hydrate extraction in the water-rich ...
Yiqun Zhang   +6 more
doaj   +1 more source

Updated 'budapest method' for revitalizing radial collector wells and applicability to Belgrade's water supply source [PDF]

open access: yesTehnika, 2016
Belgrade's water supply source is faced with the complex issue of halting a continuing decline in radial well capacity. It is possible to counteract the problem by replacing worn-out laterals.
Božović Đorđije M.   +2 more
doaj   +1 more source

Comparative assessment of radial collector well elements with a new approach [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2017
In radial collector well design or rehabilitation it is extremely important to define the capacity of the location and the long-term sustainable discharge of the well.
Pušić Milenko, Dimkić Milan
doaj   +1 more source

Research on Oil Well Production Prediction Based on Radial Basis Function Network [PDF]

open access: yesE3S Web of Conferences, 2019
Selection of well and reservoir is an important step in the process of stimulation and transformation of oil fields. Good measures can effectively save the cost in the process of oil field development and greatly increase the production of oil fields ...
Zhang Chuanxin   +4 more
doaj   +1 more source

Calculation of Cementing ECD for Well Annuli with Narrow or Varied Radial Sizes

open access: yesGeofluids, 2023
In this present work, cement slurry flowing in well annuli with narrow or varied radial sizes is investigated, whose purpose is to precisely calculate the equivalent circulating density (ECD) during well cementing in the petroleum industry.
Maolin Liao   +4 more
doaj   +1 more source

Characteristic groundwater level regimes in the capture zones of radial collector wells and importance of identification (Case study of Belgrade Groundwater Source) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2016
Assessment of the operating modes of radial collector wells reveals that the pumping levels in the well caissons are very low relative to the depth/elevation of the laterals, which is a common occurrence at Belgrade Groundwater Source.
Božović Đorđije   +2 more
doaj   +1 more source

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