Results 31 to 40 of about 2,518,154 (206)

Shale Formation Damage during Fracturing Fluid Imbibition and Flowback Process Considering Adsorbed Methane

open access: yesEnergies, 2022
Hydraulic fracturing of shale gas reservoirs is characterized by large fracturing fluid consumption, long working cycle and low flowback efficiency. Huge amounts of fracturing fluid retained in shale reservoirs for a long time would definitely cause ...
Mingjun Chen   +7 more
doaj   +1 more source

Simulation and Experimental Studies of Mineral Scale Formation Effects on Performance of Sirri-C Oil Field under Water Injection [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2011
Water injection is an enhanced oil recovery method which is applied for number of reservoirs especially in the offshore fields around the world. Sea-water injection process is usually associated with important concerns affecting the efficiency, safety ...
Amir Taheri   +5 more
doaj  

Positive regulation of meiotic DNA double-strand break formation by activation of the DNA damage checkpoint kinase Mec1(ATR) [PDF]

open access: yes, 2013
During meiosis, formation and repair of programmed DNA double-strand breaks (DSBs) create genetic exchange between homologous chromosomes-a process that is critical for reductional meiotic chromosome segregation and the production of genetically diverse ...
Allison, Rachal M   +4 more
core   +1 more source

Experimental Design for Evaluation of Formation Damage by Microbial Contamination in Water Flooding Processes. A Colombian Study Case.

open access: yesRevista Fuentes El Reventón Energético, 2019
Microbial contamination is well known in the oil and gas industry and it occurs in most processes where water processing systems are involved. Microorganisms are spread everywhere, even in the subsurface, where operations of oil exploration and ...
Manuel Guillermo   +2 more
doaj   +1 more source

Synthesis and Experimental-Modelling Evaluation of Nanoparticles Movements by Novel Surfactant on Water Injection: An Approach on Mechanical Formation Damage Control and Pore Size Distribution [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
Water injection is used as a widespread IOR/EOR method and promising formation damages (especially mechanical ones) is a crucial challenge in the near-wellbore of injection wells.
Mohammad Parvazdavani   +2 more
doaj   +1 more source

Acutely damaged axons are remyelinated in multiple sclerosis and experimental models of demyelination [PDF]

open access: yes, 2017
Remyelination is in the center of new therapies for the treatment of multiple sclerosis to resolve and improve disease symptoms and protect axons from further damage.
Bramlett   +38 more
core   +1 more source

Unexpected transformation of dissolved phenols to toxic dicarbonyls by hydroxyl radicals and UV light. [PDF]

open access: yes, 2018
Water treatment systems frequently use strong oxidants or UV light to degrade chemicals that pose human health risks. Unfortunately, these treatments can result in the unintended transformation of organic contaminants into toxic products.
Ford, Breanna   +3 more
core   +1 more source

Using CT scanning technology to investigate microscopic pore structure characteristics of low-permeability reservoir rocks after water sensitivity experiments

open access: yes地质科技通报, 2023
CT scanning and core flooding experiments were combined to investigate the change in microscopic pore structure of low-permeability reservoir rocks due to the water sensitivity effect.
Xinling Hu, Hao Lei
doaj   +1 more source

The Fundamental Principles and Standard Evaluation for Fluid Loss and Possible Extensions of Test Methodology to Assess Consequences for Formation Damage

open access: yesEnergies, 2021
Industry testing procedures such as ANSI/API 13B-1 describe a method for measuring fluid loss and studying filter-cake formation against a medium of either a filter paper or a porous disc, without giving information about potential formation damage ...
Karl Ronny Klungtvedt   +6 more
doaj   +1 more source

Experimental Study of Matrix Permeability of Gas Shale: An Application to CO2-Based Shale Fracturing

open access: yesEnergies, 2018
Because the limitations of water-based fracturing fluids restrict their fracturing efficiency and scope of application, liquid CO2 is regarded as a promising substitute, owing to its unique characteristics, including its greater environmental ...
Chengpeng Zhang   +1 more
doaj   +1 more source

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