Results 21 to 30 of about 1,079 (131)

Research and Application of Waterflooding Mechanism at the Bottom of Ultra-Low Permeability Shallow Reservoir with Horizontal Fractures

Energies, 2022
The Yanchang Eastern Oilfield of Ordos Basin is a typical ultra-low permeability shallow reservoir. Because of the relatively low vertical pressure, horizontal artificial fractures are prone to take place in the case of oil well fracturing.
Lihua Shi, Shiqing Cheng, Yuwen Chang, Haiyang Yu, Binchi Hou   +4 more
doaj   +1 more source

Comparison of the effectiveness of different modifications cyclic flooding of an oil reservoir

Известия высших учебных заведений: Нефть и газ
The depletion of readily accessible oil has increased the focus on recovering harder-to-access reserves. Consequently, the industry requires new, improved, low-cost, and efficient methods for developing reservoirs with complex geological structures ...
I. G. Telegin
doaj   +1 more source

Synthesis and characterization of a highly hydrophilic nanocomposite for wettability alteration, water/oil interfacial tension reduction, and enhanced oil recovery

The Canadian Journal of Chemical Engineering, Volume 104, Issue 8, Page 4101-4119, August 2026.
Mechanism of wettability alteration, interfacial tension reduction, and oil recovery by novel nanocomposite. Abstract The development of stable nanofluids (NFs) for enhanced oil recovery (EOR) relies on optimizing interactions between reservoir rocks and fluids.
Ehsan Jafarbeigi, Ehsan Kamari, Amir H. Mohammadi   +2 more
wiley   +1 more source

Polymeric surfactants as alternative to improve waterflooding oil recovery efficiency

CT&F Ciencia, Tecnología & Futuro, 2020
Chemical formulations, including surfactants, polymers, alkalis, or their combinations, are widely used in different oil recovery processes to improve water injection performance. However, based on challenging profit margins in most mature waterfloods in
Henderson Ivan Quintero Perez, Miguel José Rondon Anton, Jaime Alberto Jimenez, John Hervin Bermudez, Julian Alfredo Gonzalez, Jenny Liset Rodrigues, Carlos Espinosa Leon   +6 more
doaj   +1 more source

Design and Optimization of Low‐Salinity Alkali–Surfactant Flooding for Chemical Enhanced Oil Recovery in Carbonate Reservoirs

Engineering Reports, Volume 8, Issue 8, August 2026.
The hybrid low‐salinity and AS flood with a maximum incremental oil recovery (OOIP basis) of up to 20%–25% was recorded above those of conventional operation waterflooding in oil‐wet carbonate core samples. ABSTRACT Oil‐wet carbonate reservoirs may also have low recovery efficiency in the Middle East where the reservoir temperature is high and there ...
Rasan Sarbast Faisal
wiley   +1 more source

Geological Inverse Problem‐Solving Method Based on Diffusion Models

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Traditional geological parameter inversion methods often require repeated forward simulations for history matching, leading to high computational cost and limited inversion efficiency. Their performance may also be restricted when geological fields exhibit strong non‐Gaussian characteristics. To address these challenges, this study proposes an
Kai Zhang, Wenfu Zhao, Piyang Liu, Jinding Zhang, Liming Zhang, Xia Yan, Wenjuan Zhang, Yang Wang, Jun Yao   +8 more
wiley   +1 more source

Nanoparticle‐Assisted Polymer Flooding for Enhanced Oil Recovery: Condition‐Specific Mechanisms, Modeling Reliability, and Field‐Scale Translation

Engineering Reports, Volume 8, Issue 7, July 2026.
Nanoparticle‐assisted polymer flooding (NAPPF) strengthens polymer EOR by improving rheological stability, reducing interfacial tension, altering wettability, and lowering polymer adsorption/retention, delivering 15%–30% incremental recovery in lab studies and up to ˜22% in pilots.
R. Venkatesh, Kuwar Mausam, M. Brahmaraju, Komal Parashar, Subrahmanya Ranjit Pasupuleti, Madhur Grover, Sagayaraj Pappu, Ramya Maranan, Madaminov Sanjarbek Maxmudjon Ugli, Rajkumar Sivanraju   +9 more
wiley   +1 more source

Critical Review on the Molecular Behavior of Surfactants at the Oil–Water Interface During Oil Displacement

Energy Science &Engineering, Volume 14, Issue 3, Page 1626-1662, March 2026.
This review systematically explores the molecular behavior of diverse surfactants (anionic, cationic, nonionic, amphoteric) at the oil–water interface through molecular dynamics simulations. It highlights their roles in reducing interfacial tension, altering interfacial structure, and enhancing oil recovery efficiency.
Zhaowei Hou, Wenchao Jiang, Xiaolin Wu, Jian Gai, Liqiang Zheng, Jie Chen, Shuanghua Wang, Shouliang Lu, Bin Huang, Jichao Sun, Long Su   +10 more
wiley   +1 more source

Numerical Modeling and Validation of a Novel 2D Compositional Flooding Simulator Using a Second-Order TVD Scheme

Energies, 2018
The aim of this paper is to present the latter and develop a numerical simulator aimed at solving a 2D domain porous medium, using the compositional approach to simulate chemical flooding processes.
Pablo Druetta, Francesco Picchioni
doaj   +1 more source

Study of the efficiency of regulation of the process of waterflooding of gas-condensate reservoirs of the Hadiach field using carbon dioxide

Мінеральні ресурси України, 2021
To improve the existing technologies for the development of hydrocarbon reservoirs in the conditions of the manifestation of a water drive, the study of the effectiveness of regulating the flow of formation water into productive reservoirs by injection ...
S. V. Matkivskyi
doaj   +1 more source