Results 41 to 50 of about 216,053 (237)

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source

CHANGES OF THE NATURAL ELECTRICAL POTENTIAL OF STEEL IN THE STRESS-STRAIN STATE

Известия высших учебных заведений: Нефть и газ, 2015
The experimental investigations of steel samples under the influence of the bending load were conducted. It is demonstrated that in the event of the steel stress-strain state occurrence, its natural electric potential changes.
S. V. Loparev, R. A. Tryastsin, A. A. Volzhakov, V. V. Gostev   +3 more
doaj   +1 more source

Influence of Hydrate Formation and Concentration of Salts on the Corrosion of Steel 20 Pipelines

Management Systems in Production Engineering, 2020
One of the ways to increase natural gas production is to conserve and/or intensify existing wells with their subsequent development. They are characterized by a high content of highly mineralized water, which leads to an increased risk of hydrate ...
Poberezhny Lubomyr, Chudyk Ihor, Hrytsanchuk Andrii, Mandryk Oleg, Kalyn Tetyana, Hrytsuliak Halyna, Yakymechko Yaroslav   +6 more
doaj   +1 more source

Occurrence, Genesis, and Significance of Analcime in Fine-Grained Sedimentary Rocks

Geofluids, 2022
Natural analcime, an aluminosilicate mineral with multiple genetic mechanisms, widely occurs in fine-grained sedimentary reservoirs rich in oil and gas.
Junran Wang, Chao Liang, Yingchang Cao, Yu Tian   +3 more
doaj   +1 more source

Biomimetic Vascular Scaffold with Seamless Electrospun Aligned Nanofiber Conduit and 3D‐Printed Coil Reinforcement

Advanced Healthcare Materials, EarlyView.
We introduce a new fabrication method that overcomes the current limitation of tubular gap electrospinning. We successfully fabricated a seamless hollow tube with fibers aligned along the longitudinal axis in diameters as small as 300 µm, and then reinforced it using 4‐axis 3D printing.
Seyed Aliakbar Hosseini Toopghara, Young‐Ook Hwang, In A Kim, Che‐I Hyun, Hochung Ryu, Won‐Jae Kim, Jeong‐Tae Koh, Hyun‐Pil Lim, Jin‐Ho Kang, Sang‐Won Park   +9 more
wiley   +1 more source

Design and optimization of hydrogen liquefaction process coupled with steam methane reforming and LNG cold energy

You-qi chuyun
ObjectiveAs a clean secondary energy source with zero emissions upon combustion, hydrogen plays a pivotal role in the global energy transition. While liquefaction is one of the most effective methods for improving hydrogen storage and transportation ...
Jinliang GENG, Youyi LIANG, Wenjun WANG, Xiao YU, Xiong YIN, Xin QIAO, Yiran LIU, Yongtu LIANG   +7 more
doaj   +1 more source

FEATURES INTERPRETATIONS OF HORIZONTAL OIL WELL BUILD-UP TEST IN OIL AND GAS RESERVOIRS

Известия высших учебных заведений: Нефть и газ, 2015
The article describes the features of well test interpretation in horizontal oil wells in the development of oil and gas reservoirs. The results obtained provided a method of estimating the vertical permeability and the anisotropy coefficient according ...
M. D. Zejnal'-Abidin, S. K. Sohoshko, A. V. Sarancha, N. P. Kocherga   +3 more
doaj   +1 more source

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

Advanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno, Qiangrui Dong, Marco Post, Xin Meng, Cristiano Glessi, Nynke Marije Hettema, Nidas Brandsma, Sebbe Blokhuizen, Alejandro Castañeda Garcia, Srividya Ganapathy, Thieme Schmidt, Lars van Roemburg, Bing Xu, Chun‐Ting Cho, Liedewij Laan, Miao‐Ping Chien, Daan Brinks   +16 more
wiley   +1 more source

Expansion of Micro-Annulus at the Second Cementing Interface During Construction of Underground Gas Storage From Old Well

Shiyou jixie
Debonding may occur at the second cementing interface during construction of underground gas storages （UGSs） from old wells. Based on the fluid-solid interaction theory and the cohesive zone model （CZM）， the Cohesive unit in ABAQUS was used to establish ...
Li Changyou, Zhang He, Li Chen, Yao Siyu
doaj   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source