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Microstructure Parameter Estimation in Permeability Calculation of Well Cement during Early Hydration by a Simple Particle Expansion Model

Syahrir Ridha , Syahrir and Bambang Ari, Wahjoedi (2011) Microstructure Parameter Estimation in Permeability Calculation of Well Cement during Early Hydration by a Simple Particle Expansion Model. In: National Postgraduate Conference 2011 (NPC 2011), 19-20 Sept 2011, Universiti Teknologi PETRONAS, Tronoh, Perak, MALAYSIA.

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Abstract

Abstract— The inter-connected pores of cement after displaced into wellbore is believed to contribute for fluids migration. It cannot be accurately evaluated using the present sonic and acoustic methods due to its density based principles. Impedance technique is applied at elevated temperature and pressure for its pores characterization. A simple particle expansion model is proposed to solve the microstructural parameters (surface and volume of pores) in the unsetting cement that was previously encountered. The proposed model is validated by comparing the trend lines of cement prior to (our model) and after (measurement) setting. The results are employed in the Katz-Thompson equation for estimating its permeability. A comparable result of permeability calculation to the measured data is fairly observed. Keywords-component; well cement; elevated temperature; impedance technique; particle expansion model

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > T Technology (General)
Academic Subject Two:Geosciences
Academic Subject Three:petroleum engineering
Departments / MOR / COE:Departments > Geoscience & Petroleum Engineering
ID Code:6929
Deposited By: Dr Sonny Irawan
Deposited On:05 Dec 2011 03:01
Last Modified:20 Mar 2017 02:40

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