TY  - JOUR
ID  - scholars5302
EP  - 5228
SN  - 2193567X
N2  - Experimental assessment of cement permeability is difficult to perform once the cement has been displaced into the wellbore, especially during early hydration. Failure to do so, it may lead to secondary cementing operation that requires additional cost or in the worst case may damage the well. This study proposes an empirical equation for permeability prediction using electrical conductivity at elevated pressure up to 3,000 psi and temperature up to 65 °C during the first 24 h of hydration. The relationship between permeability and normalized conductivity follows power law equation. Better correlation is achieved once the pore diameter parameter is included. The resulting equation is similar to that of Katz-Thompson equation with different constant values. Better agreement is observed for the new proposed equation during 24 h of hydration and also up to 28 days using other cement data. This paper also discusses a relationship between permeability and compressive strength of oilwell cement under reservoir conditions. © 2014 King Fahd University of Petroleum and Minerals.
TI  - Prediction Equation for Permeability of Class G Oilwell Cement Under Reservoir Conditions
IS  - 6
SP  - 5219
PB  - Springer Verlag
AV  - none
A1  - Ridha, S.
A1  - Irawan, S.
A1  - Ariwahjoedi, B.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902674981&doi=10.1007%2fs13369-014-1028-4&partnerID=40&md5=d44d4e257798550eb37056882f8508b6
N1  - cited By 7
Y1  - 2014///
VL  - 39
JF  - Arabian Journal for Science and Engineering
ER  -