Microstructure parameter estimation in permeability calculation of well cement during early hydration by a simple particle expansion model

Author(s):  
S. Ridha ◽  
S. Irawan ◽  
B. Ariwahjoedi
2013 ◽  
Vol 116 (2) ◽  
pp. 597-603 ◽  
Author(s):  
Martin Palou ◽  
Vladimír Živica ◽  
Tomáš Ifka ◽  
Martin Boháč ◽  
Martin Zmrzlý

2010 ◽  
Vol 40 (7) ◽  
pp. 1023-1033 ◽  
Author(s):  
Jie Zhang ◽  
Emily A. Weissinger ◽  
Sulapha Peethamparan ◽  
George W. Scherer

HBRC Journal ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 207-214 ◽  
Author(s):  
S.A. Abo-El-Enein ◽  
S.M.A. El-Gamal ◽  
I.A. Aiad ◽  
M.M. Azab ◽  
O.A. Mohamed

SPE Journal ◽  
2021 ◽  
Vol 26 (06) ◽  
pp. 3488-3504
Author(s):  
Z. Li ◽  
J. M. Vandenbossche ◽  
A. T. Iannacchione ◽  
A. Vuotto

Summary Experiments on oil well cement (OWC) slurries were performed using the newly developed laboratory-scale wellbore simulation chamber (WSC). The WSC can simulate hydrostatic pressure reduction in the cemented annulus and possible gas migration under representative conditions. Forensic analysis shows that pressurized fluids can result in porous cement and gas channeling during cement slurry gelation. The effects of different factors on slurry pore pressure were also studied, including formation permeability, initial overburden pressure (OBP) representing the depth of interest, wellbore temperature, water/cement (w/c) ratio, cement composition, and the use of a calcium chloride (CaCl2)-based accelerator. By analyzing the temperature history of hydrating cement using degree of hydration, the evolution of cement hydration was characterized for slurry designs cured at different hydration rates. This provides the opportunity to parameterize the slurry designs and other important factors associated with wellbore conditions.


2016 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
S. A.Abo-El-Enein ◽  
S. M.A.El-Gamal ◽  
I. A.Aiad ◽  
M. M.Azab ◽  
O. A.Mohamed

Author(s):  
Yun Lu ◽  
David C. Joy

High resolution scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDXA) were performed to investigate microparticles in blended cements and their hydration products containing sodium-rich chemical wastes. The physical appearance of powder particles and the morphological development at different hydration stages were characterized by using high resolution SEM Hitachi S-900 and by SEM S-800 with a EDX spectrometer. Microparticles were dispersed on the sample holder and glued by 1% palomino solution. Hydrated bulk samples were dehydrated by acetone and mounted on the holder by silver paste. Both fracture surfaces and flat cutting sections of hydrating samples were prepared and examined. Some specimens were coated with an 3 nm thick Au-Pd or Cr layer to provide good conducting surfaces. For high resolution SEM S-900 observations the accelerating voltage of electrons was 1-2 KeV to protect the electron charging. Microchemical analyses were carried out by S800/EDS equipped with a LINK detector of take-off angle =40°.


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