Results 11 to 20 of about 1,079 (131)

Characterization and Dynamic Adjustment of the Flow Field during the Late Stage of Waterflooding in Strongly Heterogeneous Reservoirs

open access: yesEnergies, 2023
The flow field is the fluid dynamic flow path in strongly heterogeneous reservoirs, and its evolution significantly affects the distribution of remaining oil, showing a disordered and highly dispersed mode caused by long-time water injection.
Daigang Wang   +5 more
doaj   +1 more source

Precipitation of Barium Sulphate during the Waterflooding Process in Polish Offshore Oilfields—Case Analysis

open access: yesEnergies, 2023
The fundamentals of scaling during waterflooding of an oilfield are presented. Mineral precipitation is described using both the kinetics approach, with the corresponding equations given, and the thermodynamic models’ theoretical foundation discussed ...
Michał Gruszka, Stanisław Nagy
doaj   +1 more source

Fast Optimization of Injector Selection for Waterflood, CO2-EOR and Storage Using an Innovative Machine Learning Framework

open access: yesEnergies, 2021
Optimal injector selection is a key oilfield development endeavor that can be computationally costly. Methods proposed in the literature to reduce the number of function evaluations are often designed for pattern level analysis and do not scale easily to
Anand Selveindran   +3 more
doaj   +1 more source

Effects of oil viscosity on waterflooding: A case study of high water-cut sandstone oilfield in Kazakhstan

open access: yesOpen Geosciences, 2020
After a sandstone oilfield enters the high water-cut period, the viscosity of crude oil has an important influence on remaining oil distribution and waterflooding characteristics under the same factors of, e.g., reservoir quality and development methods.
Wang Jincai   +6 more
doaj   +1 more source

Comprehensive Evaluation of Waterflooding Performance with Induced Fractures in Tight Reservoir: A Field Case

open access: yesGeofluids, 2021
Whether intentionally or unintentionally, waterflooding always takes place under fracturing condition in tight reservoir because of the extremely limited water absorption ability of the formation.
Naichao Feng   +7 more
doaj   +1 more source

Experimental and Analytical Investigation of an Immiscible Displacement Process in Real Structure Micromodels

open access: yesEnergies, 2022
The recovery of oil from a reservoir can be accomplished with various methods, one of the most commonly applied types being waterflooding. A common theory used to describe immiscible displacement is the Buckley–Leverett theory.
Christian Truitt Lüddeke   +3 more
doaj   +1 more source

Application of waterflooding technique to the Angut oilfield in the northern part of Afghanistan

open access: yesJournal of Petroleum Exploration and Production Technology, 2017
The purpose of the paper is to use the Buckley–Leverett frontal displacement theory to evaluate the recovery of oil by waterflooding for the Angut oilfield in northern Afghanistan. The waterflooding technique, in which oil is displaced by injecting water
Khwaja Naweed Seddiqi, Zabihullah Mahdi
doaj   +1 more source

A Novel Approach to Measuring Water and Oil Relative Permeabilities in Two-phase Fluid Flow in Porous Media [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2018
In this study, direct laboratory measurements of unsteady-state imbibition test are used in a new approach to obtain relative permeability curves with no predetermined functionality assumptions.
Azadeh Mamghaderi   +2 more
doaj   +1 more source

Efficient History Matching of Thermally Induced Fractures Using Coupled Geomechanics and Reservoir Simulation

open access: yesEnergies, 2020
Waterflooding is a common recovery method used to maintain reservoir pressure and improve reservoir oil sweep efficiency. However, injecting cold water into a reservoir alters the state of in-situ formation stress and can result in the formation ...
Misfer Almarri
doaj   +1 more source

High-Precision Numerical Simulation on the Cyclic High-Pressure Water Slug Injection in a Low-Permeability Reservoir

open access: yesGeofluids, 2021
The paper presents a novel waterflooding technique, coupling cyclic high-pressure water slug injection with an asynchronous injection and production procedure, to address the inefficient development of low-permeability oil reservoir in Shengli Oilfield ...
Jie Zhan   +5 more
doaj   +1 more source

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