Results 21 to 30 of about 136,396 (361)

Modelling of deep wells thermal modes [PDF]

, 2019
Purpose. Investigation of various heat-exchange conditions influence of the tower liquid on the deep wells thermal conditions. Methods. Methods of heat-exchange processes mathematical modeling are used.
Blyuss, B, Bulat, A, Dreus, A, Dziuba, S, Liu, B   +4 more
core   +1 more source

Space weather effects on drilling accuracy in the North Sea [PDF]

, 2005
The oil industry uses geomagnetic field information to aid directional drilling operations when drilling for oil and gas offshore. These operations involve continuous monitoring of the azimuth and inclination of the well path to ensure the target is ...
Allen, W., Baillie, O., Bowe, J., Clarke, E., Lesur, V., Macmillan, S., Reay, S.J.   +6 more
core   +5 more sources

Integrity Experiments for Geological Carbon Storage (GCS) in Depleted Hydrocarbon Reservoirs: Wellbore Components under Cyclic CO₂ Injection Conditions

Energies
Integrity of wellbores and near wellbore processes are crucial issues in geological carbon storage (GCS) projects as they both define the confinement and injectivity of CO2. For the proper confinement of CO2, any flow of CO2 along the wellbore trajectory
Taofik H. Nassan, Carsten Freese, Dirk Baganz, Hakan Alkan, Oleksandr Burachok, Jonas Solbakken, Nematollah Zamani, Morten Gunnar Aarra, Mohd Amro   +8 more
doaj   +1 more source

Hydrogen from Depleted/Depleting Hydrocarbon Reservoirs: A Reservoir Engineering Perspective

Applied Sciences
In today’s industry, H2 is mostly produced from fossil fuels such as natural gas (NG), oil, and coal through various processes. However, all these processes produce both carbon dioxide (CO2) as well as H2, making them questionable in terms of climate ...
Hakan Alkan, Johannes Fabian Bauer, Oleksandr Burachok, Patrick Kowollik, Michael Olbricht, Mohd Amro   +5 more
doaj   +1 more source

Effective Photocatalytic Degradation of Methyl Orange Using V2O5@ZnO Nanocomposite under UV and Visible Irradiations

International Journal of Electrochemical Science, 2020
Today, reclamation and reuse of wastewater from textile, food and pharmaceutical industries are the big challenges for researchers to decrease the diseases and pollution in the world.
Dichen Tan, Huaiyuan Long, Huaan Zhou, Yu Deng, Erping Liu, Song Wang, Shunyuan Zhang   +6 more
doaj   +1 more source

Seismic Response to Injection Well Stimulation in a High-Temperature, High-Permeability Reservoir [PDF]

, 2019
Fluid injection into the Earth's crust can induce seismic events that cause damage to local infrastructure but also offer valuable insight into seismogenesis.
Chet Hopp, Evans K. F., Grant M. A., Horne R., John Townend, Martha Savage, Massiot C., Stefan Mroczek, Steven Sewell, Zoback M. D.   +9 more
core   +2 more sources

Evaluation and Field Application of a Rheology Modifier for Non-aqueous Based Drilling Fluids

Zuanjingye yu wanjingye
A rheology modifier for non-aqueous based drilling fluids was prepared in this work. Based on the drilling fluid systems of China Oilfield Services Co., LTD., the influence of dosage, aging temperature and aging time on rheology and electrical stability ...
Liangliang REN, Yu SONG, Tie GENG, Jiansheng LUO, Chao LI, Xiaochun XIA   +5 more
doaj   +1 more source

Super-amphiphobic, strong self-cleaning and high-efficiency water-based drilling fluids

Petroleum Exploration and Development, 2020
Based on the amphiphobic theory on underground rock surface, a super-amphiphobic agent is developed and evaluated which can form nano-micro papilla structure on rock, filter cake and metal surface, reduce surface free energy, prevent collapse, protect ...
Guancheng JIANG, Xiaoxiao NI, Wuquan LI, Xiaohu QUAN, Xuwu LUO   +4 more
doaj   +1 more source

Preliminary test on modified clays for seawater resistant drilling fluids [PDF]

, 2015
The quality of a drilling fluid declines in salt water conditions. An engineered clay (HYPER clay) was developed for geosynthetic clay liners with enhanced resistance to aggressive conditions.
Bezuijen, Adam, D, Verastegui Flores, den Hamer, Davina, Di Emidio, Gemmina   +3 more
core  

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

Arthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead, Anne‐Maree Keenan, Philip G. Conaghan, Dennis McGonagle, Anthony C. Redmond   +4 more
wiley   +1 more source