Rubiandini, Rudi and Siregar, Septoratno and Suhascaryo, Nur and Efrial, Deny (2005) The Effect of CaO and MgO as Expanding Additives to Improve Cement Isolation Strength under HPHT Exposure. In: PROC. ITB Eng. Science.
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Abstract
Abstract. Cementing is one of the most important parts in oil-well drilling.
Recent development in oil-well drilling technology has led to a more problematic
case in cementing. High temperature cementing is one of the problems. High
temperature cementing may cover steam recovery wells, geothermal wells and
ultra deep wells.
The use of expanding cements as an effort to improve the sealing efficacy of
annulus cementing has been considered for a long time as a promising solution to
the existing problems. CaO and MgO have been proposed as two of the most
effective additives to create excellent expanding cement.
The purpose of this study is to find the effect of adding up burnt pure CaO and
MgO to the value of compressive strength and shear bond strength of API class
G cement in high pressure and high temperature condition. The method that we
used within this research is an evaluation of the data taken from a simulator that
simulated within temperature range of 100 - 250°C and pressure of 2000 psi.
The conclusion is taken according to the results which saving that the addition of
burnt pure CaO and MgO would increase the shear bond strength and the
compressive strength on specific condition up to 200°C temperature. The
addition won't be effective for the condition of250°C temperature. The behavior
of cement strength was also influenced bv the length of curing time.
Further more, research on expanding cement needs to be developed and extended
whether to vary its compositions, temperatures, or curing time conditions. The
compatibility when mixed with other additives together with silica flour has not
yet been figured out.
Keywords: Cementing: high temperature cementing; expanding cements; shear bond
strength: compressive strength: curing time; simulator
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Cementing: high temperature cementing; expanding cements; shear bond strength: compressive strength: curing time; simulator |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Dr.Ir.MT Nur Suhascaryo |
| Date Deposited: | 27 May 2022 08:42 |
| Last Modified: | 02 Jun 2022 05:08 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/21634 |
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