Results 51 to 60 of about 1,244,178 (311)

Disaggregation and discretization methods for formation damage estimation in oil and gas fields: an overview

Dyna, 2020
Formation damage could potentially impede production and injection operations. Hence, characterization and discretization processes of formation damage should be connected to quantification and disaggregation techniques, relying on characterization ...
Oscar E Medina, Juan P Castaño-Correa, Cristina Caro-Vélez, Richard D Zabala, Jorge I Bahamón, Farid B Cortés, Camilo A. Franco   +6 more
doaj   +1 more source

Drilling Operation and Formation Damage

Open Journal of Fluid Dynamics, 2013
Transport of particle suspensions in oil reservoirs is an essential phenomenon in many oil industry processes. Solid and liquid particles dispersed in the drilling fluid (mud) are trapped by the rock (porous medium) and permeability decline takes place during drilling fluid invasion into reservoir resulting in formation damage. The formation damage due
Hooman Fallah, Sara Sheydai
openaire   +2 more sources

Damage characterization of deep bed filtration from pressure measurements

, 2002
SummaryPermeability decline occurs during injection of sea or produced water, resulting in well impairment. Solid and liquid particles dispersed in the injected water are trapped by the porous medium and may significantly increase hydraulic resistance to
Marchesin, D., Bedrikovetski, P., Shecaira, F., T. K. Tran, E. Rezende, Souza, A., Tran, T., Rezende, E., Tran, P., F. Shecaira, Serra, A., P. Tran, A. Siqueira, W. M. G. T. Van den Broek, A.L. Serra, D. Marchesin, Van den Broek, W., Siqueira, A., P. Bedrikovetsky, A. L. Souza, W.M.G.T. Van den Broek   +20 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Experimental study of petrophysical properties of a tight formation by considering the clay minerals and flow sensitivities

Earth Sciences Research Journal, 2016
Quantitative X-ray diffraction analysis of rock, X-ray diffraction analysis of clay minerals types and components, Field Emission Scanning Electron Microscope (FESEM) and sensitivity flow experiments methods were used toresearch the effects of clay ...
Guangfen Liu, Shoujun Li, Daihong Gu, Yang Lu, Emmanuel Asamoah   +4 more
doaj   +1 more source

Geochemical Changes Associated with High-Temperature Heat Storage at Intermediate Depth: Thermodynamic Equilibrium Models for the DeepStor Site in the Upper Rhine Graben, Germany

Energies, 2021
The campus of the Karlsruhe Institute of Technology (KIT) contains several waste heat streams. In an effort to reduce greenhouse gas emissions by optimizing thermal power consumption on the campus, researchers at the KIT are proposing a ‘DeepStor ...
Jonathan Banks, Spencer Poulette, Jens Grimmer, Florian Bauer, Eva Schill   +4 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Rheological properties and damage-control mechanism of oil-based drilling fluid with different types of weighting agents [PDF]

Royal Society Open Science, 2018
The great amount of solid particles contained in a weighting agent is a major cause of the problems in both rheology properties and damage control mechanism of an oil-based drilling fluid (OBM).
Peng Xu, Mingbiao Xu, Zhengwu Tao, Zhihong Wang, Ting Huang   +4 more
doaj   +1 more source

Dextran sulfate enhances the level of an oxidative DNA damage biomarker, 8-oxo-7,8-dihydro-2 0-deoxyguanosine, in rat colonic mucosa [PDF]

, 1998
Dextran sodium sulfate (DSS) given in drinking water can induce colonic Inflammation and produce colorectal tumors in rodents, although it is not directly genotoxic.
Petit, Claude, Embvani, E., Jaeg, Jean-Philippe, Tardieu, Didier, Corpet, Denis E., Cadet, Jean   +5 more
core  

In-situ erosion of damaged formation during injectivity decline (PWRI & seawater flood)

, 2007
Injectivity decline with further stabilisation was widely observed and reported in the literature. It can be explained by different physical mechanisms.
Claudio Jose Alves Furtado, de Souza, A., Fernando Diogo Siqueira, Bedrikovetski, P., Antonio Luiz Vianna de Souza, Furtado, C., Siqueira, F., Pavel G. Bedrikovetsky   +7 more
core   +1 more source