Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kuhan Chellappah"'
Publikováno v:
Chemical Engineering Research and Design. 173:215-223
The strength of drilling mud filter cakes is a parameter of practical relevance during well construction. This work simulates a ‘hole punch test’ experiment to determine filter cake yield stress. The discrete element model is used to predict the
Publikováno v:
Chemical Engineering Science: X, Vol 7, Iss, Pp 100062-(2020)
Filter cakes made from model water-based drilling fluids were tested to determine cake properties such as porosity, thickness and yield stress. The effects of drilling fluid particle concentration, size distribution and shape on the properties of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6eae1775330fac9b87faa613327c63c
https://www.repository.cam.ac.uk/handle/1810/303185
https://www.repository.cam.ac.uk/handle/1810/303185
Autor:
Jose R. A. Godinho, Pei Ng, Kuhan Chellappah, Megan Smith, Ian Ralph Collins, Philip J. Withers
Publikováno v:
Withers, P, Godinho, J, Chellappah, K, Collins, I, Smith, M & Ng, P 2019, ' Time-lapse imaging of particle invasion and deposition in porous media using in situ X-ray radiograph ', Journal of Petroleum Science and Engineering . https://doi.org/10.1016/j.petrol.2019.02.061
Journal of Petroleum Science and Engineering 177(2019), 384-391
Journal of Petroleum Science and Engineering 177(2019), 384-391
This paper introduces time-lapse radiography as an in situ technique to image and quantify changes in the internal structure of a porous medium with sub-second temporal resolution. To demonstrate the technique's potential, an experiment was performed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5d61534077a025de5f0c040cb031cba
https://www.research.manchester.ac.uk/portal/en/publications/timelapse-imaging-of-particle-invasion-and-deposition-in-porous-media-using-in-situ-xray-radiograph(2fd88912-7427-4847-b0e6-327f56511e28).html
https://www.research.manchester.ac.uk/portal/en/publications/timelapse-imaging-of-particle-invasion-and-deposition-in-porous-media-using-in-situ-xray-radiograph(2fd88912-7427-4847-b0e6-327f56511e28).html
Publikováno v:
Day 2 Wed, March 07, 2018.
This paper presents a new model that integrates relevant aspects of geomechanics and drilling fluids to provide practical solutions for wellbore strengthening. This integrated approach accounts for the influence of stress state, rock properties, well
Publikováno v:
Day 2 Wed, March 07, 2018.
Drilling fluid designs for wellbore strengthening have been improved through the development of engineered nutshell (ENS) products, which have replaced conventional marble for the larger particle sizes. Marble particles greater than ~400 microns are
Publikováno v:
Chemical Engineering Science. 65:6407-6414
New data are reported on the filtration of binary fibre/titania (rutile) mixtures. The combined use of the Kozeny–Carman equation and Darcy’s law is presented and discussed in relation to application in the filtration of binary mixtures. Upon clo
Publikováno v:
Chemical Engineering & Technology. 33:1283-1289
The constant pressure filtration characteristics of cellulose fibers, titania (rutile) and mixtures of the two were studied using an automated filtration apparatus. With filtrations at 450 kPa, the average permeability (k av ) for pure fiber and ruti
Publikováno v:
Separation Science and Technology. 43:29-44
The effectiveness of polymeric flocculant addition and hydrodynamics on increasing the critical permeation flux, J crit , during crossflow microfiltration of bentonite suspensions using a tubular ceramic membrane module was investigated. The investig
Publikováno v:
All Days.
Two important aspects often overlooked in the design of bridging solids packages for drilling fluids are: a) obtaining accurate particle size measurements, and b) allowing for the influence of particle attrition. This paper explores both aspects and
Autor:
Mark Aston, Kuhan Chellappah
Publikováno v:
All Days.
Carefully engineering the size distribution of bridging solids should enable us to form filter cakes of low permeability. A theory called the ideal packing theory is commonly used to blend bridging solids which suggests the ideal blend of particles s