Comparison of Mechanical Behaviour of G Class Cements for different Curing Time

Date

2015-04-17

Author

Güner, Doğukan
ÖZTÜRK, HANDE IŞIK

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

223
views

0
downloads

Since 1900's, well cementing is one of the most substantial method in casing application of oil, gas and geothermal. The American Petroleum Institute (API) identifies well cements in 8 classes with respect to pressure, temperature and the depth of the well. G class cement is the most commonly used cement type for well casing purpose due to its sulphate resistance ability. High sulphate-resistant (HSR) G class cements are often used in well cementing industry. API Standards mainly focus on uniaxial compressive strength (UCS) value of cements cured for 8 and 24 hours. There is no any available research on the long term (14 days) properties of G class cement in the literature. This study presents the comparison of UCS and Elastic modulus (E) growth of 3 different G class cements (2 domestic, 1 foreign products) over 14 days curing time. During the laboratory studies, samples prepared in the laboratory conditions with different curing times (2, 7 and 14 days) are tested based on ASTM standards. It is concluded that the increase in the curing time improves the UCS and E of cements 2-3 times. Logarithmic relationships exist between curing time and UCS, E. Moreover, mechanical properties of these products show significant differences between each other. The UCS and E values of G class cement produced in Turkey have values incontrovertibly lower than that of an equivalent foreign product.

Subject Keywords

G class cement, Curing time, Uniaxial compressive strength, Elastic modulus, High sulphate resistant (HSR), Cement mechanical properties, casing

URI

https://hdl.handle.net/11511/53058

Conference Name

24th International Mining Congress and Exhibition of Turkey-IMCET'15

Collections

Department of Mining Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

A study on blended bottom ash cements Kaya, Ayşe İdil; Yaman, İsmail Özgür; Hoşten, Çetin; Department of Cement Engineering (2010) Cement production which is one of the most energy intensive industries plays a significant role in emitting the greenhouse gases. Blended cement production by supplementary cementitious materials such as fly ash, ground granulated blast furnace slag and natural pozzolan is one of the smart approaches to decrease energy and ecology related concerns about the production. Fly ash has been used as a substance to produce blended cements for years, but bottom ash, its coarser counterpart, has not been utilized du...
An Experimental study on the effects of different chloride sources on the properties of API Class G cement Ramazanoğlu, Özge; Yaman, İsmail Özgür; Akın, Serhat; Department of Cement Engineering (2014) In the petroleum industry, oil well cements are used in the form of slurries during the construction of oil or natural gas wells. Preserving the integrity of the well and the casing, providing zonal isolation are some of the uses of these special cements. Oil well cement slurries used in the petroleum industry are subjected to different exposure conditions than ordinary Portland cement slurries used in the construction industry. Therefore, oil well cements are required to possess different engineering prope...
Comparison of test methods on the compressive strength of slag and natural pozzolan cements Tokgöz, Abdullah Usame; Tokyay, Mustafa; Yaman, İsmail Özgür; Department of Civil Engineering (2014) Among the two standard test methods of determining the compressive strength of cements which are described in EN 196-1 and ASTM C 109, the basic differences is in the amount of water used in preparing the mortars. According to EN 196-1 the former uses a constant water-cement ratio of 0.50 in the preparation of mortar specimens, for all types of cements whereas the latter uses a constant water-cement ratio of 0.485 and 0.460 for Portland and air-entrained Portland cements, respectively; and water-cement rati...
Simulation of oil generation from oil shale resources Rasouli, A.; Shekarifard, A.; Farahani, F. Jalali; Kök, Mustafa Verşan (2014-01-01) Oil shale is a type of unconventional hydrocarbon resources with a capability of oil production by practical thermal process called retorting. Mechanism and kinetic study of reactions occur in this process can provide the possibility of theoretical reconstruction of it and furthermore, the simulation of retorting process. Parallel, irreversible, first order reactions are the well-known type which used to modeling the reactions. Mentioned model are simulated with Simulink® (MathWorks® Inc.). By considering t...
Challenges related to flotation cleaning of oil shales Issues due to compositional and surface features and post grinding surface behavior Altun, Naci Emre (2016-09-30) Oil shale is an important energy resource alternative. Despite its recognition as an unconventional oil source, oil shale is also considered as an important solid fossil fuel alternative to coal and lignites due to the solid form and remarkable extent of organic content. Utilization possibilites, similar to coal and lignites, have been considered in the past decades and direct use of oil shales in thermal power production has been possible in countries like Estonia and China. In the perspective of utilizati...

Citation Formats

D. Güner and H. I. ÖZTÜRK, “Comparison of Mechanical Behaviour of G Class Cements for different Curing Time,” presented at the 24th International Mining Congress and Exhibition of Turkey-IMCET′15, Antalya, Turkey, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53058.