An Accurate Determination of the Shear Rate for High-Yield-Stress Drilling Fluids Using Concentric Cylinder Fann 35 Viscometer Data

SPE Journal ◽  
2020 ◽  
Author(s):  
Sidharth Gautam ◽  
Chandan Guria
Keyword(s):  
Shear Rate ◽  
Yield Stress ◽  
Accurate Determination ◽  
High Yield ◽  
Drilling Fluids ◽  
Concentric Cylinder ◽  
High Yield Stress

scholarly journals Concentric cylinder viscometer flows of Herschel-Bulkley fluids

2019 ◽  
Vol 29 (1) ◽  
pp. 173-181 ◽  
Author(s):  
Hans Joakim Skadsem ◽  
Arild Saasen
Keyword(s):  
Shear Rate ◽  
Yield Stress ◽  
Couette Flow ◽  
Newtonian Fluid ◽  
Shear Thinning ◽  
Newtonian Fluids ◽  
Drilling Fluids ◽  
Concentric Cylinder ◽  
Shear Thinning Fluids ◽  
Cylinder Viscometer

Abstract Drilling fluids and well cements are example non-Newtonian fluids that are used for geothermal and petroleum well construction. Measurement of the non-Newtonian fluid viscosities are normally performed using a concentric cylinder Couette geometry, where one of the cylinders rotates at a controlled speed or under a controlled torque. In this paper we address Couette flow of yield stress shear thinning fluids in concentric cylinder geometries.We focus on typical oilfield viscometers and discuss effects of yield stress and shear thinning on fluid yielding at low viscometer rotational speeds and errors caused by the Newtonian shear rate assumption. We relate these errors to possible implications for typical wellbore flows.

Electrorheological fluid with an extraordinarily high yield stress

2002 ◽  
Vol 80 (5) ◽  
pp. 888-890 ◽  
Author(s):  
Yuling Zhang ◽  
Kunquan Lu ◽  
Guanghui Rao ◽  
Yu Tian ◽  
Shaohua Zhang ◽  
...  
Keyword(s):  
Yield Stress ◽  
Electrorheological Fluid ◽  
High Yield ◽  
High Yield Stress

Extensive application of TMCP steel plates to ship hulls: 40 kgf/mm2 class high yield stress steel

1988 ◽  
Vol 1 (3) ◽  
pp. 219-243 ◽  
Author(s):  
Susumu Machida ◽  
Hiroshige Kitada ◽  
Hiroshi Yajima ◽  
Akinobu Kawamura
Keyword(s):  
Yield Stress ◽  
Steel Plates ◽  
High Yield ◽  
Ship Hulls ◽  
High Yield Stress

Removable equipment designed to transport timber: new engineering solutions and application of high-yield-stress steel

2020 ◽  
Vol 17 (1) ◽  
pp. 117-128
Author(s):  
N. A. Tanicheva ◽  
◽  
I. V. Fedorov ◽  
I. O. Filippova ◽  
◽  
...  
Keyword(s):  
Yield Stress ◽  
High Yield ◽  
High Yield Stress

CORRESPONDENCE. HIGH-YIELD-STRESS STEEL AS COLUMN AND BEAM REINFORCEMENT.

1944 ◽  
Vol 22 (8) ◽  
pp. 417-424
Author(s):  
C E REYNOLDS ◽  
C V BLUMFIELD ◽  
J CUEREL ◽  
K HAJNAL KONYI
Keyword(s):  
Yield Stress ◽  
High Yield ◽  
High Yield Stress

High Yield Stress Associated with Capillary Attraction between Alumina Surfaces in the Presence of Low Molecular Weight Dicarboxylic Acids

Langmuir ◽  
2010 ◽  
Vol 26 (5) ◽  
pp. 3067-3076 ◽  
Author(s):  
E-Jen Teh ◽  
Yee-Kwong Leong ◽  
Yinong Liu ◽  
Vincent S. J. Craig ◽  
Rick B. Walsh ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Yield Stress ◽  
Dicarboxylic Acids ◽  
High Yield ◽  
Low Molecular Weight ◽  
High Yield Stress ◽  
Capillary Attraction

Fast neutron and proton therapy sources

2001 ◽  
Vol 89 (4-5) ◽  
Author(s):  
D.T.L. Jones
Keyword(s):  
Proton Therapy ◽  
Lower Energy ◽  
Radiation Transport ◽  
Biological Effects ◽  
Accurate Determination ◽  
High Yield ◽  
Energy Sources ◽  
Good Penetration ◽  
Eye Lesions

Neutrons from the reactions of protons or deuterons of energies between 35 and 70 MeV on beryllium are most suitable for therapy because of the high yield and good penetration. Lower energy sources are used for limited applications. Proton therapy is conducted mainly in two energy ranges, viz. 60–75 MeV (exclusively for the treatment of eye lesions) and ≥200 MeV for general applications. Characterisation of both neutron and proton therapy beams in terms of spectral fluence is important for accurate determination of dosimetry parameters, for interpreting biological effects, for intercomparison purposes and to perform accurate radiation transport calculations.

TIO2 BASED ELECTRORHEOLOGICAL FLUID WITH HIGH YIELD STRESS

2005 ◽  
Vol 19 (07n09) ◽  
pp. 1104-1109 ◽  
Author(s):  
RONG SHEN ◽  
XUEZHAO WANG ◽  
WEIJIA WEN ◽  
KUNQUAN LU
Keyword(s):  
Yield Stress ◽  
Chemical Method ◽  
Electrorheological Fluid ◽  
High Yield ◽  
Oxide Nanoparticles ◽  
Wet Chemical Method ◽  
Titanium Oxide Nanoparticles ◽  
High Yield Stress ◽  
Wet Chemical ◽  
Er Fluids

We have fabricated several TiO 2 based ER fluids with doping and without designed doping, which exhibit the high yield stress up to more than 100kPa. The titanium oxide nanoparticles were synthesized by using wet chemical method. The ER effect of those materials is dominated by the special additives, such as amide or its ramification, as well as the remained molecules or ions in the sample preparation. It is found that the yield stress is also strongly dependent on the viscosity of the oil. The prepared ER fluids possess other attractive characters, for instance the current density is low and against sedimentation.

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